STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER COMPANY STATEMENT AS OF MARCH 31, 2021 OF THE COMPANY ASSETS Current Statement Date 4 1 2 3 December 31 Net Admitted Assets Prior Year Net Assets Nonadmitted Assets (Cols. 1 - 2) Admitted Assets 1. Bonds 5,185,382,667 0 5,185,382,667 5,036,994,855 2. Stocks: 2.1 Preferred stocks 9,218,188 0 9,218,188 5,049,999 2.2 Common stocks 1,739,274,441 794,531 1,738,479,910 1,649,356,734 3. Mortgage loans on real estate: 3.1 First liens 126,033,452 0 126,033,452 116,077,893 3.2 Other than first liens 0 0 0 0 4. Real estate: 4.1 Properties occupied by the company (less $ 0 encumbrances) 43,921,808 0 43,921,808 44,788,154 4.2 Properties held for the production of income (less $ 0 encumbrances) 0 0 0 0 4.3 Properties held for sale (less $ 0 encumbrances) 0 0 0 0 5. Cash ($ (58,953,827) ), cash equivalents ($ 85,711 ) and short-term investments ($ 1,338,630 ) (57,529,486) 0 (57,529,486) (57,030,013) 6. Contract loans (including $ 0 premium notes) 0 0 0 0 7. Derivatives 0 0 0 0 8. Other invested assets 584,566,780 0 584,566,780 597,101,836 9. Receivables for securities 26,293,966 0 26,293,966 3,579,716 10. Securities lending reinvested collateral assets 0 0 0 0 11. Aggregate write-ins for invested assets 0 0 0 0 12. Subtotals, cash and invested assets (Lines 1 to 11) 7,657,161,816 794,531 7,656,367,285 7,395,919,173 13. Title plants less $ 0 charged off (for Title insurers only) 0 0 0 0 14. Investment income due and accrued 36,150,407 241,015 35,909,392 38,075,674 15. Premiums and considerations: 15.1 Uncollected premiums and agents' balances in the course of collection 157,186,015 33,784,069 123,401,946 136,002,462 15.2 Deferred premiums, agents' balances and installments booked but deferred and not yet due (including $ 0 earned but unbilled premiums) 1,021,574,018 0 1,021,574,018 1,008,440,761 15.3 Accrued retrospective premiums ($ 0 ) and contracts subject to redetermination ($ 0 ) 0 0 0 0 16. Reinsurance: 16.1 Amounts recoverable from reinsurers 23,817,390 0 23,817,390 52,078,312 16.2 Funds held by or deposited with reinsured companies 4,840,324 0 4,840,324 4,813,336 16.3 Other amounts receivable under reinsurance contracts 0 0 0 0 17. Amounts receivable relating to uninsured plans 0 0 0 0 18.1 Current federal and foreign income tax recoverable and interest thereon 0 0 0 0 18.2 Net deferred tax asset 130,225,745 0 130,225,745 135,558,921 19. Guaranty funds receivable or on deposit 472,146 0 472,146 602,531 20. Electronic data processing equipment and software 82,995,675 75,302,446 7,693,229 7,242,640 21. Furniture and equipment, including health care delivery assets ($ 0 ) 7,379,679 7,379,679 0 0 22. Net adjustment in assets and liabilities due to foreign exchange rates 0 0 0 0 23. Receivables from parent, subsidiaries and affiliates 139,808,850 0 139,808,850 126,639,012 24. Health care ($ 0 ) and other amounts receivable 0 0 0 0 25. Aggregate write-ins for other than invested assets 129,573,754 60,662,055 68,911,699 68,120,343 26. Total assets excluding Separate Accounts, Segregated Accounts and Protected Cell Accounts (Lines 12 to 25) 9,391,185,819 178,163,795 9,213,022,024 8,973,493,165 27. From Separate Accounts, Segregated Accounts and Protected Cell Accounts 0 0 0 0 28. Total (Lines 26 and 27) 9,391,185,819 178,163,795 9,213,022,024 8,973,493,165 DETAILS OF WRITE-INS 1101. 1102. 1103. 1198. Summary of remaining write-ins for Line 11 from overflow page 0 0 0 0 1199. Totals (Lines 1101 through 1103 plus 1198)(Line 11 above) 0 0 0 0 2501. Equity in Pools & Associations 36,725,321 0 36,725,321 35,344,847 2502. State Tax Credits 6,124,973 0 6,124,973 9,636,335 2503. Miscellaneous Assets 26,061,405 0 26,061,405 23,139,161 2598. Summary of remaining write-ins for Line 25 from overflow page 60,662,055 60,662,055 0 0 2599. Totals (Lines 2501 through 2503 plus 2598)(Line 25 above) 129,573,754 60,662,055 68,911,699 68,120,343

2 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY LIABILITIES, SURPLUS AND OTHER FUNDS 1 2 Current December 31, Statement Date Prior Year 1. Losses (current accident year $ 393,767,000 ) 3,381,130,593 3,228,896,610 2. Reinsurance payable on paid losses and loss adjustment expenses 1,480,137 1,366,906 3. Loss adjustment expenses 776,575,492 762,611,835 4. Commissions payable, contingent commissions and other similar charges 68,422,509 118,910,157 5. Other expenses (excluding taxes, licenses and fees) 126,708,982 196,856,828 6. Taxes, licenses and fees (excluding federal and foreign income taxes) 16,406,014 24,997,635 7.1 Current federal and foreign income taxes (including $ (1,061,443) on realized capital gains (losses)) 12,294,108 10,515,546 7.2 Net deferred tax liability 0 0 8. Borrowed money $ 0 and interest thereon $ 0 0 0 9. Unearned premiums (after deducting unearned premiums for ceded reinsurance of $ 127,788,544 and including warranty reserves of $ 0 and accrued accident and health experience rating refunds including $ 0 for medical loss ratio rebate per the Public Health Service Act) 1,939,040,992 1,893,941,039 10. Advance premium 18,881,833 19,768,242 11. Dividends declared and unpaid: 11.1 Stockholders 0 0 11.2 Policyholders 3,535,000 3,535,000 12. Ceded reinsurance premiums payable (net of ceding commissions) 47,719,040 42,369,986 13. Funds held by company under reinsurance treaties 1,914,361 2,233,892 14. Amounts withheld or retained by company for account of others 2,533,363 2,890,777 15. Remittances and items not allocated 31,202,013 22,620,418 16. Provision for reinsurance (including $ 0 certified) 469,000 469,000 17. Net adjustments in assets and liabilities due to foreign exchange rates 0 0 18. Drafts outstanding 0 0 19. Payable to parent, subsidiaries and affiliates 11,950,994 21,611,435 20. Derivatives 0 0 21. Payable for securities 77,566,393 180,000 22. Payable for securities lending 0 0 23. Liability for amounts held under uninsured plans 0 0 24. Capital notes $ 0 and interest thereon $ 0 0 0 25. Aggregate write-ins for liabilities 33,178,541 36,842,172 26. Total liabilities excluding protected cell liabilities (Lines 1 through 25) 6,551,009,365 6,390,617,478 27. Protected cell liabilities 0 0 28. Total liabilities (Lines 26 and 27) 6,551,009,365 6,390,617,478 29. Aggregate write-ins for special surplus funds 0 0 30. Common capital stock 5,000,000 5,000,000 31. Preferred capital stock 0 0 32. Aggregate write-ins for other than special surplus funds 0 0 33. Surplus notes 0 0 34. Gross paid in and contributed surplus 146,230,870 146,230,870 35. Unassigned funds (surplus) 2,510,781,789 2,431,644,817 36. Less treasury stock, at cost: 36.1 0 shares common (value included in Line 30 $ 0 ) 0 0 36.2 0 shares preferred (value included in Line 31 $ 0 ) 0 0 37. Surplus as regards policyholders (Lines 29 to 35, less 36) 2,662,012,659 2,582,875,687 38. Totals (Page 2, Line 28, Col. 3) 9,213,022,024 8,973,493,165 DETAILS OF WRITE-INS 2501. Collateral Held 21,309,845 24,604,845 2502. Miscellaneous Liabilities 11,868,696 12,237,327 2503. 2598. Summary of remaining write-ins for Line 25 from overflow page 0 0 2599. Totals (Lines 2501 through 2503 plus 2598)(Line 25 above) 33,178,541 36,842,172 2901. 2902. 2903. 2998. Summary of remaining write-ins for Line 29 from overflow page 0 0 2999. Totals (Lines 2901 through 2903 plus 2998)(Line 29 above) 0 0 3201. 3202. 3203. 3298. Summary of remaining write-ins for Line 32 from overflow page 0 0 3299. Totals (Lines 3201 through 3203 plus 3298)(Line 32 above) 0 0

3 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY STATEMENT OF INCOME 1 2 3 Current Prior Year Prior Year Ended Year to Date to Date December 31 UNDERWRITING INCOME 1. Premiums earned: 1.1 Direct (written $ 387,074,572 ) 370,772,352 349,658,144 1,421,032,707 1.2 Assumed (written $ 726,937,233 ) 692,327,615 690,674,195 2,702,500,111 1.3 Ceded (written $ 129,447,269 ) 123,635,385 117,199,416 464,131,837 1.4 Net (written $ 984,564,536 ) 939,464,582 923,132,923 3,659,400,981 DEDUCTIONS: 2. Losses incurred (current accident year $ 487,209,000 ): 2.1 Direct 178,450,193 150,691,329 616,132,530 2.2 Assumed 421,808,362 374,955,753 1,458,093,465 2.3 Ceded 59,995,196 48,507,393 238,360,817 2.4 Net 540,263,359 477,139,689 1,835,865,178 3. Loss adjustment expenses incurred 116,520,268 117,584,621 460,004,218 4. Other underwriting expenses incurred 320,851,844 304,010,886 1,234,178,495 5. Aggregate write-ins for underwriting deductions 0 0 0 6. Total underwriting deductions (Lines 2 through 5) 977,635,471 898,735,196 3,530,047,891 7. Net income of protected cells 0 0 0 8. Net underwriting gain or (loss) (Line 1 minus Line 6 + Line 7) (38,170,889) 24,397,727 129,353,090 INVESTMENT INCOME 9. Net investment income earned 54,122,710 53,175,765 298,556,810 10. Net realized capital gains (losses) less capital gains tax of $ (1,061,443) 3,039,899 (23,786,899) (19,431,413) 11. Net investment gain (loss) (Lines 9 + 10) 57,162,609 29,388,866 279,125,397 OTHER INCOME 12. Net gain or (loss) from agents’ or premium balances charged off (amount recovered $ 891,531 amount charged off $ 5,493,879 ) (4,602,348) (2,100,930) (8,966,197) 13. Finance and service charges not included in premiums 2,556,321 2,857,798 10,505,885 14. Aggregate write-ins for miscellaneous income 2,425,769 2,489,272 10,023,129 15. Total other income (Lines 12 through 14) 379,742 3,246,140 11,562,817 16. Net income before dividends to policyholders, after capital gains tax and before all other federal and foreign income taxes (Lines 8 + 11 + 15) 19,371,462 57,032,733 420,041,304 17. Dividends to policyholders 635,296 682,771 2,926,352 18. Net income, after dividends to policyholders, after capital gains tax and before all other federal and foreign income taxes (Line 16 minus Line 17) 18,736,166 56,349,962 417,114,952 19. Federal and foreign income taxes incurred 2,846,952 15,620,472 83,831,252 20. Net income (Line 18 minus Line 19)(to Line 22) 15,889,214 40,729,490 333,283,700 CAPITAL AND SURPLUS ACCOUNT 21. Surplus as regards policyholders, December 31 prior year 2,582,875,687 2,464,618,522 2,464,618,522 22. Net income (from Line 20) 15,889,214 40,729,490 333,283,700 23. Net transfers (to) from Protected Cell accounts 0 0 0 24. Change in net unrealized capital gains (losses) less capital gains tax of $ 6,966,387 79,664,887 (83,429,787) 33,392,885 25. Change in net unrealized foreign exchange capital gain (loss) 0 0 0 26. Change in net deferred income tax 1,782,866 7,312,691 23,364,405 27. Change in nonadmitted assets (18,762,984) (15,578,846) (32,992,127) 28. Change in provision for reinsurance 0 0 (322,000) 29. Change in surplus notes 0 0 0 30. Surplus (contributed to) withdrawn from protected cells 0 0 0 31. Cumulative effect of changes in accounting principles 0 0 0 32. Capital changes: 32.1 Paid in 0 0 0 32.2 Transferred from surplus (Stock Dividend) 0 0 0 32.3 Transferred to surplus 0 0 0 33. Surplus adjustments: 33.1 Paid in 0 0 0 33.2 Transferred to capital (Stock Dividend) 0 0 0 33.3 Transferred from capital 0 0 0 34. Net remittances from or (to) Home Office 0 0 0 35. Dividends to stockholders 0 0 (245,000,000) 36. Change in treasury stock 0 0 0 37. Aggregate write-ins for gains and losses in surplus 562,989 987,842 6,530,302 38. Change in surplus as regards policyholders (Lines 22 through 37) 79,136,972 (49,978,610) 118,257,165 39. Surplus as regards policyholders, as of statement date (Lines 21 plus 38) 2,662,012,659 2,414,639,912 2,582,875,687 DETAILS OF WRITE-INS 0501. 0502. 0503. 0598. Summary of remaining write-ins for Line 5 from overflow page 0 0 0 0599. Totals (Lines 0501 through 0503 plus 0598)(Line 5 above) 0 0 0 1401. Miscellaneous Income 647,085 527,260 2,400,723 1402. Interest on Intercompany Notes Receivable 1,719,700 1,720,778 7,033,422 1403. Gains on State Tax Credits 58,984 241,234 588,984 1498. Summary of remaining write-ins for Line 14 from overflow page 0 0 0 1499. Totals (Lines 1401 through 1403 plus 1498)(Line 14 above) 2,425,769 2,489,272 10,023,129 3701. Pensions, net of tax 562,989 987,842 6,530,302 3702. 3703. 3798. Summary of remaining write-ins for Line 37 from overflow page 0 0 0 3799. Totals (Lines 3701 through 3703 plus 3798)(Line 37 above) 562,989 987,842 6,530,302

4 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY CASH FLOW 1 2 3 Current Year Prior Year Prior Year Ended To Date To Date December 31

Cash from Operations

1. Premiums collected net of reinsurance 984,394,360 914,376,008 3,638,901,518

2. Net investment income 58,179,940 57,446,290 265,028,888

3. Miscellaneous income (839,925) 7,355,462 13,680,067

4. Total (Lines 1 to 3) 1,041,734,375 979,177,760 3,917,610,473

5. Benefit and loss related payments 359,444,334 411,892,512 1,596,742,007

6. Net transfers to Separate Accounts, Segregated Accounts and Protected Cell Accounts 0 0 0

7. Commissions, expenses paid and aggregate write-ins for deductions 552,635,570 534,186,962 1,649,968,217

8. Dividends paid to policyholders 635,296 682,771 3,444,352 9. Federal and foreign income taxes paid (recovered) net of $ 0 tax on capital

gains (losses) 6,947 9,393 75,967,142

10. Total (Lines 5 through 9) 912,722,147 946,771,638 3,326,121,718

11. Net cash from operations (Line 4 minus Line 10) 129,012,228 32,406,122 591,488,754

Cash from Investments

12. Proceeds from investments sold, matured or repaid:

12.1 Bonds 357,259,363 224,438,794 899,126,042

12.2 Stocks 14,404,254 52,537,856 78,772,875

12.3 Mortgage loans 37,066 26,773 88,480

12.4 Real estate 0 0 0

12.5 Other invested assets 46,614,066 4,488,575 20,261,771

12.6 Net gains or (losses) on cash, cash equivalents and short-term investments 0 (13,266) (23,814)

12.7 Miscellaneous proceeds 54,672,142 929,626 0

12.8 Total investment proceeds (Lines 12.1 to 12.7) 472,986,891 282,408,358 998,225,354

13. Cost of investments acquired (long-term only):

13.1 Bonds 510,641,312 295,862,847 1,450,246,091

13.2 Stocks 18,974,117 63,460,899 69,187,573

13.3 Mortgage loans 9,990,000 23,465,008 33,727,788

13.4 Real estate 239,428 731,100 7,137,258

13.5 Other invested assets 29,958,102 7,941,760 49,800,589

13.6 Miscellaneous applications 0 0 1,112,723

13.7 Total investments acquired (Lines 13.1 to 13.6) 569,802,959 391,461,614 1,611,212,022

14. Net increase (or decrease) in contract loans and premium notes 0 0 0

15. Net cash from investments (Line 12.8 minus Line 13.7 and Line 14) (96,816,068) (109,053,256) (612,986,668)

Cash from Financing and Miscellaneous Sources

16. Cash provided (applied):

16.1 Surplus notes, capital notes 0 0 0

16.2 Capital and paid in surplus, less treasury stock 0 0 0

16.3 Borrowed funds 0 54,014,888 0

16.4 Net deposits on deposit-type contracts and other insurance liabilities 0 0 0

16.5 Dividends to stockholders 0 0 76,407,131

16.6 Other cash provided (applied) (32,695,633) (54,906,174) (23,178,151)

17. Net cash from financing and miscellaneous sources (Line 16.1 through Line 16.4 minus Line 16.5 plus Line 16.6) (32,695,633) (891,286) (99,585,282)

RECONCILIATION OF CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS

18. Net change in cash, cash equivalents and short-term investments (Line 11, plus Lines 15 and 17) (499,473) (77,538,420) (121,083,196)

19. Cash, cash equivalents and short-term investments:

19.1 Beginning of year (57,030,013) 64,053,183 64,053,183

19.2 End of period (Line 18 plus Line 19.1) (57,529,486) (13,485,237) (57,030,013)

Note: Supplemental disclosures of cash flow information for non-cash transactions: 20.0001. Bonds sold to subsidiaries in settlement of capital contributions 0 0 (17,681,920) 20.0002. Bonds acquired in settlement of stockholder dividends receivable 0 0 59,887,114 20.0003. Accrued interest income on bonds acquired (sold) for intercompany transactions 0 0 (660,589) 20.0004. Bonds sold to parent in settlement of stockholder dividend payable 0 0 (167,505,589)

5 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY NOTES TO FINANCIAL STATEMENTS

NOTE 1 Summary of Significant Accounting Policies and Going Concern

A. Accounting Practices

The financial statements of The Hanover Insurance Company (“the Company”) are presented on the basis of accounting practices prescribed or permitted by the State of New Hampshire Insurance Department.

The State of New Hampshire Insurance Department recognizes only statutory accounting practices prescribed or permitted by the State of New Hampshire for determining and reporting the financial condition and results of operations of an insurance company, for determining its solvency under the New Hampshire Insurance Law. The National Association of Insurance Commissioners (“NAIC”) “Accounting Practices and Procedures Manual” (“NAIC SAP”) has been adopted as a component of prescribed or permitted practices by the State of New Hampshire. The State has not adopted any prescribed accounting practices that differ from those found in NAIC SAP.

A reconciliation of the Company’s net income and capital and surplus between NAIC SAP and practices prescribed and permitted by the State of New Hampshire is shown below:

F/S F/S SSAP # Page Line # 2021 2020 NET INCOME

(1) State basis (Page 4, Line 20, Columns 1 & 3) XXX XXX XXX $ 15,889,214 $ 333,283,700

(2) State Prescribed Practices that are an increase/ (decrease) from NAIC SAP: $ - $ -

(3) State Permitted Practices that are an increase/(decrease) from NAIC SAP: $ - $ -

(4) NAIC SAP (1-2-3=4) XXX XXX XXX $ 15,889,214 $ 333,283,700

SURPLUS

(5) State basis (Page 3, Line 37, Columns 1 & 2) XXX XXX XXX $ 2,662,012,659 $ 2,582,875,687

(6) State Prescribed Practices that are an increase/(decrease) from NAIC SAP: $ - $ -

(7) State Permitted Practices that are an increase/(decrease) from NAIC SAP: $ - $ -

(8) NAIC SAP (5-6-7=8) XXX XXX XXX $ 2,662,012,659 $ 2,582,875,687

B. Use of Estimates in the Preparation of the Financial Statements

The preparation of financial statements in conformity with Statutory Accounting Principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities. It also requires disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the period. Actual results could differ from those estimates.

C. Accounting Policy

(1) Short-term investments are stated at amortized cost.

(2) Bonds not backed by loans are stated at either amortized cost or fair value, using the scientific interest method, in accordance with the NAIC Purposes and Procedures of the Securities Valuation Office ("SVO").

(3,4) Preferred stocks that are subject to a 100% mandatory sinking fund are carried at amortized cost. All other preferred stocks and common stocks are carried at fair value, except investments in stocks of unconsolidated subsidiaries and affiliates in which the Company has an interest of 10% or more are carried using the equity method.

(5) Mortgage loans on real estate are stated at unpaid principal balances net of unamortized discounts, premiums, and other adjustments. Mortgage loans are reduced for losses expected by management to be realized on transfers of mortgage loans to real estate (upon foreclosure), on the disposition or settlement of mortgage loans and on mortgage loans which the Company believes may not be collectible in full. In determining the amount of loss, management considers, among other things, the estimated fair value of the underlying collateral.

(6) Loan-backed securities are stated at either amortized cost or fair value, in accordance with the NAIC Purposes and Procedures of the SVO.

(7) The Company owns 100% of the common stock of Allmerica Financial Alliance Insurance Company (“AFAIC”), Allmerica Financial Benefit Insurance Company (“AFBIC”), The Hanover American Insurance Company (“American”), The Hanover Atlantic Insurance Company Ltd. (“Atlantic”), The Hanover Casualty Company (“Hanover Casualty”), Massachusetts Bay Insurance Company (“Mass Bay”), Citizens Insurance Company of America (“CICA”), Citizens Insurance Company of the Midwest (“CICM”), Citizens Insurance Company of Ohio (“CICO”), The Hanover New Jersey Insurance Company (“New Jersey”), Verlan Fire Insurance Company (“Verlan”), The Hanover National Insurance Company (“National”), Campmed Casualty and Indemnity Company, Inc. (“Campmed”), and Nova Casualty Company ("NOVA"), all of which are insurance subsidiaries. The Company owns 100% of the common stock of Professionals Direct Inc. (“PDI”), AIX, Inc. (“AIX”), and Allmerica Plus Insurance Agency (“APIA”), which are non-insurance subsidiaries. All subsidiaries are carried using the equity method.

(8) Other invested assets, including investments in trusts, are recorded using the equity method in accordance with the Statement of Statutory Accounting Principles ("SSAP") No. 48, "Joint Ventures, Partnerships and Limited Liability Companies". Investments in affiliated entities are recorded based on its underlying audited GAAP equity balances in accordance with the SSAP 97, "Investments in Subsidiary, Controlled, and Affiliated Entities, A Replacement of SSAP 88". Commercial mortgage loan participations are recorded at outstanding principal balance of the loan per SSAP 21, "Other Admitted Assets".

(9) The Company has not entered into derivative contracts.

(10) The Company does utilize anticipated investment income as a factor in the premium deficiency calculation.

(11) Unpaid losses and loss adjustment expenses include an amount determined from individual case estimates and loss reports and an amount, based on past experience, for losses incurred but not reported (“IBNR”). Such liabilities are necessarily based on assumptions and estimates and while management believes the amount is adequate, the ultimate liability may be in excess of or less than the amount provided. The methods for making such estimates and for establishing the resulting liabilities are continually reviewed and any adjustments are reflected in the period determined.

(12) The Company has not modified its capitalization policy from the prior year.

(13) The Company does not write major medical insurance with prescription drug coverage.

6 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY NOTES TO FINANCIAL STATEMENTS

D. Going Concern

Not applicable

NOTE 2 Accounting Changes and Corrections of Errors

Not applicable

NOTE 3 Business Combinations and Goodwill

Not applicable

NOTE 4 Discontinued Operations

Not applicable

NOTE 5 Investments

A. Mortgage Loans, including Mezzanine Real Estate Loans

(1) The maximum and minimum lending rates for new commercial mortgage loans during 2021 was 2.9%.

(2) The maximum percentage of any one loan to the value of security at the time of the loan, exclusive of insured or guaranteed or purchase money mortgages was 71%.

(3) There were no taxes, assessments or any amounts advanced and not included in the mortgage loan total at the end of the reporting period.

(4-9) The Company did not have impaired loans as of the end of the reporting period.

B. Debt Restructuring

The Company did not have any restructured debt as of the end of the reporting period.

C. Reverse Mortgages

The Company did not have any reverse mortgages as of the end of the reporting period.

D. Loan-Backed Securities

(1) Prepayment assumptions for loan-backed and structured securities were obtained from prepayment models that are sensitive to refinancing, turnover, equity take-out and other relevant factors. These assumptions are consistent with the current interest rate and economic environment.

(2) Not applicable

(3) The Company had no securities with a recognized other-than-temporary impairment.

(4) All impaired securities (fair value is less than cost or amortized cost) for which an other-than-temporary impairment has not been recognized in earnings as a realized loss (including securities with a recognized other-than-temporary impairment for non-interest related declines when a non-recognized interest related impairment remains):

a) The aggregate amount of unrealized losses: 1. Less than 12 Months $ 10,437,754 2. 12 Months or Longer $ 3,828

b)The aggregate related fair value of securities with unrealized losses: 1. Less than 12 Months $ 386,604,714 2. 12 Months or Longer $ 1,080,576

(5) The Company employs a systematic methodology to determine if a decline in market value below book/adjusted carrying value is other-than-temporary. In determining whether a decline in fair value below book/adjusted carrying value is other-than-temporary, the Company evaluates several factors and circumstances, including the issuer’s overall financial condition; the issuer’s credit and financial strength ratings; the issuer’s financial performance, including earnings trends, dividend payments, and asset quality; any specific events which may influence the operations of the issuer including governmental actions; a weakening of the general market conditions in the industry or geographic region in which the issuer operates; the length of time and degree to which the fair value of an issuer’s securities remains below cost; the Company’s intent and ability to hold the security until such time to allow for the expected recovery in value; and with respect to fixed maturity investments, any factors that might raise doubt about the issuer’s ability to pay all amounts due according to the contractual terms. These factors are applied to all securities.

E. Dollar Repurchase Agreements and/or Securities Lending Transactions

(1-7) Not applicable

F., G., H., I., J.

Not applicable

K. Low Income Housing tax Credits (LIHTC)

(1) As of March 31, 2021, there are 12 remaining years of unexpired tax credits with no required holding period.

(2) The Company recognized LIHTC and other tax benefits of $122,598 during 2021. The Company did not hold LIHTC investments in the prior year.

(3) The balance of the investment recognized in the statement of financial position at March 31, 2021 was $14,900,991.

(4) At March 31, 2021, there are no LIHTC investments subject to any regulatory reviews.

(5) LIHTC investments did not exceed 10% of the Company's admitted assets.

6.1 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY NOTES TO FINANCIAL STATEMENTS

(6) There were no recognized impairments on LIHTC investments during the reporting period.

(7) The Company had no write-downs or reclassifcations due to the forfeiture or ineligibility of tax credits during the reporting period.

L. Restricted Assets

1. Restricted Assets (Including Pledged)

Gross (Admitted & Nonadmitted) Restricted Current Year 6 7 1 2 3 4 5 G/A Protected Supporting Total Cell Account Protected Protected Assets Total General Cell Account Cell Account Supporting Total Increase/ Account Activity Restricted G/A Activity Total From Prior (Decrease) (5 Restricted Asset Category (G/A) (a) Assets (b) (1 plus 3) Year minus 6) a. Subject to contractual obligation for which liability is not shown $ - $ - $ - $ - $ - $ - $ - b. Collateral held under security lending agreements $ - $ - $ - $ - $ - $ - $ - c. Subject to repurchase agreements $ - $ - $ - $ - $ - $ - $ - d. Subject to reverse repurchase agreements $ - $ - $ - $ - $ - $ - $ - e. Subject to dollar repurchase agreements $ - $ - $ - $ - $ - $ - $ - f. Subject to dollar reverse repurchase agreements $ - $ - $ - $ - $ - $ - $ - g. Placed under option contracts $ - $ - $ - $ - $ - $ - $ - h. Letter stock or securities restricted as to sale - excluding FHLB capital stock $ - $ - $ - $ - $ - $ - $ - i. FHLB capital stock $ 2,170,500 $ - $ - $ - $ 2,170,500 $ 2,170,500 $ - j. On deposit with states $ 225,363,188 $ - $ - $ - $ 225,363,188 $ 224,351,771 $ 1,011,417 k. On deposit with other regulatory bodies $ 68,853 $ - $ - $ - $ 68,853 $ 68,822 $ 31 l. Pledged collateral to FHLB (including assets backing funding agreements) $ 107,478,801 $ - $ - $ - $ 107,478,801 $ 80,997,448 $ 26,481,353 m. Pledged as collateral not captured in other categories $ - $ - $ - $ - $ - $ - $ - n. Other restricted assets $ 3,887,574 $ - $ - $ - $ 3,887,574 $ 3,893,311 $ (5,737) o. Total Restricted Assets $ 338,968,916 $ - $ - $ - $ 338,968,916 $ 311,481,852 $ 27,487,064 (a) Subset of Column 1 (b) Subset of Column 3

Current Year 8 9 Percentage

10 11

Gross (Admitted & Non- Admitted admitted) Restricted Total Total Restricted to to Total Non- Admitted Total Admitted admitted Restricted Assets Assets Restricted Asset Category Restricted (5 minus 8) (c) (d) a. Subject to contractual obligation for which liability is not shown $ - $ - 0.000% 0.000% b. Collateral held under security lending agreements $ - $ - 0.000% 0.000% c. Subject to repurchase agreements $ - $ - 0.000% 0.000% d. Subject to reverse repurchase agreements $ - $ - 0.000% 0.000% e. Subject to dollar repurchase agreements $ - $ - 0.000% 0.000% f. Subject to dollar reverse repurchase agreements $ - $ - 0.000% 0.000% g. Placed under option contracts $ - $ - 0.000% 0.000% h. Letter stock or securities restricted as to sale - excluding FHLB capital stock $ - $ - 0.000% 0.000% i. FHLB capital stock $ - $ 2,170,500 0.023% 0.024% j. On deposit with states $ - $ 225,363,188 2.400% 2.446% k. On deposit with other regulatory bodies $ - $ 68,853 0.001% 0.001% l. Pledged collateral to FHLB (including assets backing funding agreements) $ - $ 107,478,801 1.144% 1.167% m. Pledged as collateral not captured in other categories $ - $ - 0.000% 0.000% n. Other restricted assets $ - $ 3,887,574 0.041% 0.042% o. Total Restricted Assets $ - $ 338,968,916 3.609% 3.679% (c) Column 5 divided by Asset Page, Column 1, Line 28 (d) Column 9 divided by Asset Page, Column 3, Line 28

2. Detail of Assets Pledged as Collateral Not Captured in Other Categories (Contracts That Share Similar Characteristics, Such as Reinsurance and Derivatives, Are Reported in the Aggregate)

Not applicable

6.2 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY NOTES TO FINANCIAL STATEMENTS

3. Detail of Other Restricted Assets (Contracts That Share Similar Characteristics, Such as Reinsurance and Derivatives, Are Reported in the Aggregate)

Gross (Admitted & Nonadmitted) Restricted 8 Percentage Current Year 6 7 9 10 1 2 3 4 5

G/A Supporting Total Protected Protected Cell Gross Protected Cell Cell Account Account (Admitted & Admitted Account (S/A) Assets Increase/ Total Current Nonadmitted) Restricted to Total General Activity Restricted Supporting G/A Total Total From (Decrease) (5 Year Admitted Restricted to Total Admitted Description of Assets Account (G/A) (a) Assets Activity (b) (1 plus 3) Prior Year minus 6) Restricted Total Assets Assets Held in Trust for Group Accident & Health Business $ 3,887,574 $ - $ - $ - $ 3,887,574 $ 3,893,311 $ (5,737) $ 3,887,574 0.048% 0.048% Total (c) $ 3,887,574 $ - $ - $ - $ 3,887,574 $ 3,893,311 $ (5,737) $ 3,887,574 0.041% 0.042% (a) Subset of column 1 (b) Subset of column 3 (c) Total Line for Columns 1 through 7 should equal 5L(1)n Columns 1 through 7 respectively and Total Line for Columns 8 through 10 should equal 5L(1)n Columns 9 through 11 respectively.

4. Collateral Received and Reflected as Assets Within the Reporting Entity’s Financial Statements

Not Applicable

M., N., O.

Not applicable

P. Short Sales

Not applicable

Q. Prepayment Penalty and Acceleration Fees

General Account Protected Cell 1. Number of CUSIPs 18 - 2. Aggregate Amount of Investment Income $ 841,224 $ -

R. Reporting Entity’s Share of Cash Pool by Asset Type

Not applicable

NOTE 6 Joint Ventures, Partnerships and Limited Liability Companies

A. The Company has no investments in joint ventures, partnerships or limited liability companies that exceed 10% of total admitted assets as of the end of the reporting period.

B. The Company recognizes impairments when it is probable that the reporting entity will be unable to recover the carrying amount of the investment or there is evidence indicating inability of the investee to sustain earnings which would justify the carrying value of the investment. The Company did not recognize any impairments in joint ventures, partnerships or limited liability companies during the current reporting period.

NOTE 7 Investment Income

A. Due and accrued income was excluded from surplus on the following basis:

Investment income due and accrued with amounts that are over 90 days past due are nonadmitted.

B. The total amount excluded from surplus as of the end of the reporting period was $241,015.

NOTE 8 Derivative Instruments

Not applicable

6.3 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY NOTES TO FINANCIAL STATEMENTS

NOTE 9 Income Taxes

A. The components of the net deferred tax asset/(liability) at the end of current period are as follows:

1. As of End of Current Period 12/31/2020 Change

(1) (2) (3) (4) (5) (6) (7) (8) (9) (Col. 1 + 2) (Col. 4 + 5) (Col. 1 - 4) (Col. 2 - 5) (Col. 7 + 8) Ordinary Capital Total Ordinary Capital Total Ordinary Capital Total

(a) Gross Deferred Tax Assets $ 202,431,703 $ - $ 202,431,703 $ 201,270,373 $ - $ 201,270,373 $ 1,161,330 $ - $ 1,161,330 (b) Statutory Valuation Allowance Adjustment $ - $ - $ - $ - $ - $ - $ - $ - $ - (c) Adjusted Gross Deferred Tax Assets (1a - 1b) $ 202,431,703 $ - $ 202,431,703 $ 201,270,373 $ - $ 201,270,373 $ 1,161,330 $ - $ 1,161,330 (d) Deferred Tax Assets Nonadmitted $ - $ - $ - $ - $ - $ - $ - $ - $ - (e) Subtotal Net Admitted Deferred Tax Asset (1c - 1d) $ 202,431,703 $ - $ 202,431,703 $ 201,270,373 $ - $ 201,270,373 $ 1,161,330 $ - $ 1,161,330 (f) Deferred Tax Liabilities $ 31,121,320 $ 41,084,639 $ 72,205,959 $ 31,565,218 $ 34,146,235 $ 65,711,453 $ (443,898) $ 6,938,404 $ 6,494,506 (g) Net Admitted Deferred Tax Asset/(Net Deferred Tax Liability) (1e - 1f) $ 171,310,383 $ (41,084,639) $ 130,225,744 $ 169,705,155 $ (34,146,235) $ 135,558,920 $ 1,605,228 $ (6,938,404) $ (5,333,176)

2. As of End of Current Period 12/31/2020 Change (1) (2) (3) (4) (5) (6) (7) (8) (9) (Col. 1 + 2) (Col. 4 + 5) (Col. 1 - 4) (Col. 2 - 5) (Col. 7 + 8) Ordinary Capital Total Ordinary Capital Total Ordinary Capital Total Admission Calculation Components SSAP No. 101 (a) Federal Income Taxes Paid In Prior Years Recoverable Through Loss Carrybacks $ 75,753,463 $ - $ 75,753,463 $ 133,403,653 $ - $ 133,403,653 $ (57,650,190) $ - $ (57,650,190)

(b) Adjusted Gross Deferred Tax Assets Expected To Be Realized (Excluding The Amount Of Deferred Tax Assets From 2(a) above) After Application of the Threshold Limitation. (The Lesser of 2(b)1 and 2(b)2 Below) $ 84,319,152 $ - $ 84,319,152 $ 25,266,239 $ - $ 25,266,239 $ 59,052,913 $ - $ 59,052,913 1. Adjusted Gross Deferred Tax Assets Expected to be Realized Following the Balance Sheet Date. $ 84,319,152 $ - $ 84,319,152 $ 25,266,239 $ - $ 25,266,239 $ 59,052,913 $ - $ 59,052,913 2. Adjusted Gross Deferred Tax Assets Allowed per Limitation Threshold. XXX XXX $ 378,614,053 XXX XXX $ 366,011,119 XXX XXX $ 12,602,934 (c) Adjusted Gross Deferred Tax Assets (Excluding The Amount Of Deferred Tax Assets From 2(a) and 2(b) above) Offset by Gross Deferred Tax Liabilities. $ 31,121,320 $ 11,237,768 $ 42,359,088 $ 31,565,218 $ 11,035,263 $ 42,600,481 $ (443,898) $ 202,505 $ (241,393) (d) Deferred Tax Assets Admitted as the result of application of SSAP No. 101. Total (2(a) + 2(b) + 2(c)) $ 191,193,935 $ 11,237,768 $ 202,431,703 $ 190,235,110 $ 11,035,263 $ 201,270,373 $ 958,825 $ 202,505 $ 1,161,330

3. 2021 2020

a. Ratio Percentage Used To Determine Recovery Period And Threshold Limitation Amount. 458% 442% b. Amount Of Adjusted Capital And Surplus Used To Determine Recovery Period And Threshold Limitation In 2(b)2 Above. $ 2,529,331,429 $ 2,444,686,750

4.

As of End of Current Period 12/31/2020 Change (1) (2) (3) (4) (5) (6) (Col. 1 - 3) (Col. 2 - 4) Ordinary Capital Ordinary Capital Ordinary Capital

Impact of Tax Planning Strategies: (a) Determination of adjusted gross deferred tax assets and net admitted deferred tax assets, by tax character as a percentage. 1. Adjusted Gross DTAs amount from Note 9A1(c) $ 202,431,703 $ - $ 201,270,373 $ - $ 1,161,330 $ - 2. Percentage of adjusted gross DTAs by tax character attributable to the impact of tax planning strategies 0.000% 0.000% 0.000% 0.000% 0.000% 0.000% 3. Net Admitted Adjusted Gross DTAs amount from Note 9A1(e) $ 202,431,703 $ - $ 201,270,373 $ - $ 1,161,330 $ - 4. Percentage of net admitted adjusted gross DTAs by tax character admitted because of the impact of tax planning strategies 0.000% 0.000% 0.000% 0.000% 0.000% 0.000%

b. Do the Company‘s tax-planning strategies include the use of reinsurance? Yes [ ] No [X]

B. The Company does not have any deferred tax liabilities that are not recognized for amounts described in Accounting Standards Codification 740, Income Tax.

6.4 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY NOTES TO FINANCIAL STATEMENTS

C. Current income taxes incurred consist of the following major components:

(1) (2) (3) As of End of (Col. 1 - 2) 1. Current Income Tax Current Period 12/31/2020 Change (a) Federal $ 2,840,005 $ 83,810,410 $ (80,970,405) (b) Foreign $ 6,947 $ 20,842 $ (13,895) (c) Subtotal $ 2,846,952 $ 83,831,252 $ (80,984,300) (d) Federal income tax on net capital gains $ (1,061,443) $ 1,753,307 $ (2,814,750) (e) Utilization of capital loss carry-forwards $ - $ - $ - (f) Other $ - $ - $ - (g) Federal and foreign income taxes incurred $ 1,785,509 $ 85,584,559 $ (83,799,050)

2. Deferred Tax Assets: (a) Ordinary: (1) Discounting of unpaid losses $ 63,165,900 $ 60,779,040 $ 2,386,860 (2) Unearned premium reserve $ 82,232,758 $ 80,375,790 $ 1,856,968 (3) Policyholder reserves $ - $ - $ - (4) Investments $ 5,245,771 $ 7,278,475 $ (2,032,704) (5) Deferred acquisition costs $ - $ - $ - (6) Policyholder dividends accrual $ - $ - $ - (7) Fixed Assets $ 17,227,264 $ 17,176,085 $ 51,179 (8) Compensation and benefits accrual $ 10,579,804 $ 15,789,506 $ (5,209,702) (9) Pension accrual $ - $ - $ - (10) Receivables - nonadmitted $ 19,956,703 $ 15,918,253 $ 4,038,450 (11) Net operating loss carry-forward $ - $ - $ - (12) Tax credit carry-forward $ - $ - $ - (13) Other (including items <5% of total ordinary tax assets) $ 4,023,503 $ 3,953,224 $ 70,279 (99) Subtotal $ 202,431,703 $ 201,270,373 $ 1,161,330 (b) Statutory valuation allowance adjustment $ - $ - $ - (c) Nonadmitted $ - $ - $ - (d) Admitted ordinary deferred tax assets (2a99 - 2b - 2c) $ 202,431,703 $ 201,270,373 $ 1,161,330 (e) Capital: (1) Investments $ - $ - $ - (2) Net capital loss carry-forward $ - $ - $ - (3) Real estate $ - $ - $ - (4) Other (including items <5% of total ordinary tax assets) $ - $ - $ - (99) Subtotal $ - $ - $ - (f) Statutory valuation allowance adjustment $ - $ - $ - (g) Nonadmitted $ - $ - $ - (h) Admitted capital deferred tax assets (2e99 - 2f - 2g) $ - $ - $ - (i) Admitted deferred tax assets (2d + 2h) $ 202,431,703 $ 201,270,373 $ 1,161,330

3. Deferred Tax Liabilities: (a) Ordinary: (1) Investments $ - $ - $ - (2) Fixed Assets $ 15,272,517 $ 15,142,635 $ 129,882 (3) Deferred and uncollected premium $ - $ - $ - (4) Policyholder reserves $ 13,701,083 $ 14,422,170 $ (721,087) (5) Other (including items <5% of total ordinary tax liabilities) $ 2,147,720 $ 2,000,413 $ 147,307 (99) Subtotal $ 31,121,320 $ 31,565,218 $ (443,898) (b) Capital: (1) Investments $ 41,084,639 $ 34,146,235 $ 6,938,404 (2) Real estate $ - $ - $ - (3) Other (including items <5% of total capital tax liabilities) $ - $ - $ - (99) Subtotal $ 41,084,639 $ 34,146,235 $ 6,938,404 (c) Deferred tax liabilities (3a99 + 3b99) $ 72,205,959 $ 65,711,453 $ 6,494,506 4. Net deferred tax assets/liabilities (2i - 3c) $ 130,225,744 $ 135,558,920 $ (5,333,176)

The change in net deferred income taxes is comprised of the following, exclusive of non-admitted assets:

(1) (2) (3) As of End of (Col. 1 - 2) Current Period 12/31/2020 Change Adjusted gross deferred tax assets $ 202,431,703 $ 201,270,373 $ 1,161,331 Total deferred tax liabilities $ 72,205,959 $ 65,711,453 $ 6,494,506 Net deferred tax assets (liabilities) $ 130,225,744 $ 135,558,920 $ (5,333,176) Tax effect of the change in unrealized gains (losses) $ 6,966,387 Tax effect of the change in pension liability $ 149,654 Change in net deferred income tax $ 1,782,865

6.5 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY NOTES TO FINANCIAL STATEMENTS

D. Reconciliation of Federal Income Tax Rate to Actual Effective Rate

The significant items causing a difference between the statutory federal income tax rate and the Company's effective income tax rate are as follows:

As of End of Current Period Tax Rate Tax provision at statutory rate $ 3,711,682 21.0% Dividend received deductions and tax exempt interest income $ (210,239) -1.2% Non-deductible expenses $ 539,682 3.1% Non-admitted assets $ (3,936,684) -22.2% Low Income Housing Credits $ (101,807) -0.6% Total $ 2,644 0.1%

As of End of Current Period Tax Rate Federal income taxes incurred $ 2,846,952 16.1% Realized capital gains tax $ (1,061,443) -6.0% Change in net deferred income taxes $ (1,782,865) -10.0% Total statutory income taxes $ 2,644 0.1%

E. Operating Loss and Tax Credit Carryforwards

1. At the end of the current reporting period, the Company has no net operating loss carryforwards and no capital loss carryforwards.

2. The Company has the following federal income taxes which are available for recoupment in the event of future losses:

For the tax year 2020: $ 74,529,420 For the tax year 2021: $ 1,224,043

3. At the end of the current reporting period, the Company has no deposits under section 6603 of the Internal Revenue Service Code.

F. Consolidated Federal Income Tax Return

1. The Company's Federal Income Tax Return is consolidated with the following affiliated companies:

440 Lincoln Street Holding Company LLC NOVA Casualty Company AIX, Inc. Opus Investment Management, Inc. AIX Insurance Services of California, Inc. Professionals Direct, Inc. AIX Specialty Insurance Company Professionals Direct Insurance Services, Inc. Allmerica Financial Alliance Insurance Company The Hanover American Insurance Company Allmerica Financial Benefit Insurance Company The Hanover Atlantic Insurance Company Ltd. Allmerica Plus Insurance Agency, Inc. The Hanover Casualty Company Campania Holding Company, Inc. The Hanover Insurance Company Campmed Casualty & Indemnity Company, Inc. The Hanover Insurance Group, Inc. Citizens Insurance Company of America The Hanover National Insurance Company Citizens Insurance Company of Illinois The Hanover New Jersey Insurance Company Citizens Insurance Company of the Midwest VeraVest Investments, Inc. Educators Insurance Agency, Inc. Verlan Fire Insurance Company Hanover Specialty Insurance Brokers, Inc. Verlan Holdings, Inc. Massachusetts Bay Insurance Company

2. The Board of Directors has delegated to Company Management, the development and maintenance of appropriate Federal Income Tax allocation policies and procedures, which are subject to written agreement between the companies. The Federal Income tax for all subsidiaries in the consolidated return of The Hanover Insurance Group, Inc. (“THG”) is calculated on a separate return basis. Any current tax liability is paid to THG. Tax benefits resulting from taxable operating losses or credits of THG’s subsidiaries are reimbursed to the subsidiary when such losses or credits can be utilized on a consolidated return basis.

G. The Company has no federal or foreign income tax loss contingencies, for which it is reasonably possible that the total liability will significantly increase within 12 months of the reporting date.

H. Repatriation Transition Tax (RTT)

Not applicable

I. Alternative Minimum Tax (AMT) Credit

Not applicable

NOTE 10 Information Concerning Parent, Subsidiaries, Affiliates and Other Related Parties

A. Nature of Relationships

The Company is a wholly-owned subsidiary of Opus Investment Management, Inc. (“OPUS”) which, in turn, is a wholly-owned non-insurance subsidiary of THG, a publicly traded company incorporated in Delaware.

The Company has intercompany reinsurance agreements with AFAIC, AFBIC, American, Atlantic, Hanover Casualty, Mass Bay, New Jersey, Citizens Insurance Company of Illinois, Verlan, NOVA, AIX Specialty Insurance Company (“ASIC”), and Campmed whereby the Company assumes 100% of the affiliates’ insurance and reinsurance obligations. The Company also has an intercompany reinsurance agreement with CICA, whereby the Company assumes 100% of CICA’s insurance and reinsurance obligations related to business written in all states except Michigan, Indiana, and Ohio.

B. Detail of Transactions Greater than 1/2% of Admitted Assets

Not applicable

C. Transactions with related party who are not reported on Schedule Y

Not applicable

6.6 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY NOTES TO FINANCIAL STATEMENTS

D. Amounts Due to or from Related Parties

At the end of the reporting period the Company reported $11,950,994 as amounts due to subsidiary, controlled and affiliated companies and $139,808,850 due from subsidiary, controlled and affiliated companies. These affiliated receivables include $160,820,598 in notes receivable from affiliated companies and are subject to intercompany loan terms discussed in footnote 10B above. Intercompany servicing arrangements require that intercompany balances be settled within 30 days.

E. Management, Service Contracts, Cost Sharing Arrangements

The Company and its affiliates have entered into an intercompany Consolidated Service Agreement. Under the agreement, legal entities will be charged the cost of the service provided or expenses paid by the entity providing the service or paying the expense. In addition, these entities will be charged a portion of the costs associated with activities that are performed for the good of THG legal entities.

Investment related services are provided by Opus pursuant to an intercompany Advisory Agreement.

F. Guarantees or Contingencies for Related Parties

The Company has related party guarantee agreements with Verlan, NOVA, ASIC, and Campmed, ensuring the complete performance of all obligations of the affiliated companies.

G. Nature of Relationships that Could Affect Operations

All outstanding shares of the Company are owned by Opus.

H., I., J., K., L.

Not applicable

M.

No change

N., O.

Not applicable

NOTE 11 Debt

A. See disclosure below related to Federal Home Loan Bank of Boston (FHLBB) Agreements.

B. FHLB (Federal Home Loan Bank) Agreements

(1) In 2009, the Company received a $125,000,000 FHLBB advance through the Company's membership in FHLBB, which was epaid on January 2, 2019. The Company maintains FHLBB membership stock to enable short-term advances through its membership in FHLBB. During the current reporting period, the Company received and repaid advances to meet short-term liquidity needs.

As collateral to FHLBB, the Company has pledged government agency securities with a fair value of $112,115,926 as of the end of the reporting period. The fair value of the collateral pledged must be maintained at certain specified levels (equal to 100% to 112% of loan) of the borrowed amount, which can vary depending on the type of assets pledged. If the fair value of this collateral declines below these specified levels, the Company would be required to pledge additional collateral or repay outstanding borrowings. As a requirement of membership in the FHLBB, the Company maintains a certain level of investment in FHLBB stock. Total holdings of FHLBB stock were $2,170,500 at the end of the reporting period.

The Company calculates the maximum borrowing capacity amount based on the 4.0% requirement rate on short-term advances, maturing within 90 days.

There are no reserves related to FHLBB funding agreements at the end of the reporting period.

(2) FHLB Capital Stock

a. Aggregate Totals 1 2 3 General Protected Cell Total 2+3 Account Accounts 1. Current Year (a) Membership Stock - Class A $ - $ - $ - (b) Membership Stock - Class B $ 2,170,500 $ 2,170,500 $ - (c) Activity Stock $ - $ - $ - (d) Excess Stock $ - $ - $ - (e) Aggregate Total (a+b+c+d) $ 2,170,500 $ 2,170,500 $ - (f) Actual or estimated Borrowing Capacity as Determined by the Insurer $ - XXX XXX

2. Prior Year-end (a) Membership Stock - Class A $ - $ - $ - (b) Membership Stock - Class B $ 2,170,500 $ 2,170,500 $ - (c) Activity Stock $ - $ - $ - (d) Excess Stock $ - $ - $ - (e) Aggregate Total (a+b+c+d) $ 2,170,500 $ 2,170,500 $ - (f) Actual or estimated Borrowing Capacity as Determined by the Insurer $ 4,936,050 XXX XXX

11B(2)a1(f) should be equal to or greater than 11B(4)a1(d) 11B(2)a2(f) should be equal to or greater than 11B(4)a2(d)

6.7 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY NOTES TO FINANCIAL STATEMENTS

b. Membership Stock (Class A and B) Eligible and Not Eligible for Redemption 1 2 Eligible for Redemption 3 4 5 6 Current Year 6 Months to Total Not Eligible for Less Than Less Than 1 to Less Than (2+3+4+5+6) Redemption 6 Months 1 Year 3 Years 3 to 5 Years Membership Stock 1. Class A $ - $ - $ - $ - $ - $ - 2. Class B $ 2,170,500 $ 2,170,500 $ - $ - $ - $ -

11B(2)b1 Current Year Total (Column 1) should equal 11B(2)a1(a) Total (Column 1) 11B(2)b2 Current Year Total (Column 1) should equal 11B(2)a1(b) Total (Column 1)

(3) Collateral Pledged to FHLB

a. Amount Pledged as of Reporting Date 1 2 3 Aggregate Total Fair Value Carrying Value Borrowing 1. Current Year Total General and Protected Cell Account Total Collateral Pledged (Lines 2+3) $ 112,115,926 $ 107,478,801 $ - 2. Current Year General Account Total Collateral Pledged $ 112,115,926 $ 107,478,801 $ - 3. Current Year Protected Cell Account Total Collateral Pledged $ - $ - $ - 4. Prior Year-end Total General and Protected Cell Account Total Collateral Pledged $ 84,867,007 $ 80,997,448 $ -

11B(3)a1 (Columns 1, 2 and 3) should be equal to or less than 11B(3)b1 (Columns 1, 2 and 3 respectively) 11B(3)a2 (Columns 1, 2 and 3) should be equal to or less than 11B(3)b2 (Columns 1, 2 and 3 respectively) 11B(3)a3 (Columns 1, 2 and 3) should be equal to or less than 11B(3)b3 (Columns 1, 2 and 3 respectively) 11B(3)a4 (Columns 1, 2 and 3) should be equal to or less than 11B(3)b4 (Columns 1, 2 and 3 respectively)

b. Maximum Amount Pledged During Reporting Period

1 2 3 Amount Borrowed at Time of Maximum Fair Value Carrying Value Collateral 1. Current Year Total General and Protected Cell Account Maximum Collateral Pledged (Lines 2+3) $ 112,115,926 $ 107,478,801 $ - 2. Current Year General Account Maximum Collateral Pledged $ 112,115,926 $ 107,478,801 $ - 4. Prior Year-end Total General and Protected Cell Account Maximum Collateral Pledged $ 104,789,274 $ 99,620,882 $ 55,000,000

(4) Borrowing from FHLB

a. Amount as of Reporting Date

1 2 3 4 Funding Agreements General Protected Cell Reserves Total 2+3 Account Account Established 1. Current Year (a) Debt $ - $ - $ - XXX (b) Funding Agreements $ - $ - $ - $ - (c) Other $ - $ - $ - XXX (d) Aggregate Total (a+b+c) $ - $ - $ - $ -

2. Prior Year end (a) Debt $ - $ - $ - XXX (b) Funding Agreements $ - $ - $ - $ - (c) Other $ - $ - $ - XXX (d) Aggregate Total (a+b+c) $ - $ - $ - $ -

b. Maximum Amount During Reporting Period (Current Year) 1 2 3 General Protected Cell Total 2+3 Account Account 1. Debt $ - $ - $ - 2. Funding Agreements $ - $ - $ - 3. Other $ - $ - $ - 4. Aggregate Total (1+2+3) $ - $ - $ -

11B(4)b4 (Columns 1, 2 and 3) should be equal to or greater than 11B(4)a1(d) (Columns 1, 2 and 3 respectively)

c. FHLB - Prepayment Obligations

Does the company have prepayment obligations under the following arrangements (YES/NO)? 1. Debt No 2. Funding Agreements No 3. Other No

6.8 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY NOTES TO FINANCIAL STATEMENTS

NOTE 12 Retirement Plans, Deferred Compensation, Postemployment Benefits and Compensated Absences and Other Postretirement Benefit Plans

The labor for all domestic THG companies is provided and paid for by the Company.

The Company, as the common employer for all domestic affiliated Companies, provided multiple benefit plans to employees and agents of these affiliated Companies, including retirement plans. The salaries of employees and agents covered by these plans and the expenses of these plans are charged to the affiliated Companies in accordance with an intercompany cost sharing agreement.

A. Defined Benefit Plan

(1-3) No change

Pension Postretirement Special or Contractual Benefits Benefits Benefits Per SSAP No. 11 2021 2020 2021 2020 2021 2020

(4) Components of net periodic benefit cost a. Service cost $ - $ - $ - $ - $ - $ - b. Interest cost $ 3,729,000 $ 18,325,000 $ 75,109 $ 300,000 $ - $ - c. Expected return on plan assets $ (4,608,000) $ (22,233,000) $ - $ - $ - $ - d. Transition asset or obligation $ - $ - $ - $ - $ - $ - e. Gains and losses $ 794,000 $ 5,783,000 $ 47,840 $ 316,000 $ - $ - f. Prior service cost or credit $ - $ - $ - $ - $ - $ - g. Gain or loss recognized due to a settlement or curtailment $ - $ - $ - $ - $ - $ - h. Total net periodic benefit cost $ (85,000) $ 1,875,000 $ 122,949 $ 616,000 $ - $ -

(5-11) No change

(12-16) Not applicable

(17) No change

(18) Not applicable

B. Plan Assets

No change

C. The fair value of each class of plan assets

No change

D. No change

E. Defined Contribution Plan

No change

F. Multiemployer Plans

Not applicable

G. Consolidated/Holding Company Plans

No change

H., I. Not applicable

NOTE 13 Capital and Surplus, Dividend Restrictions and Quasi-Reorganizations

A. Outstanding Shares

The Company has 20,861,784 shares of $1 par value common stock authorized and 5,000,000 shares issued and outstanding. The Company has no preferred stock authorized, issued or outstanding.

B. Dividend Rate of Preferred Stock

Not applicable

C., D., E., F.

Pursuant to New Hampshire’s statute, the maximum dividends and other distributions that an insurer may pay in any twelve month period, without prior approval of the New Hampshire Insurance Commissioner, is limited to the lesser of 10% of statutory policyholder surplus as of the preceding December 31, or net income. The Company declared an ordinary dividend of $245,000,000 to Opus on May 10, 2020. Accordingly, the maximum dividend that may be declared payable at January 1, 2021 without prior approval from the New Hampshire Commissioner of Insurance is $13,287,569. The maximum dividend that may be declared payable subsequent to May 10, 2021 without prior approval is $258,287,569.

G., H., I.

Not applicable

J, The portion of unassigned funds (surplus) represented or reduced by cumulative unrealized gains and losses is $ 1,056,604,647

This unrealized gain is not net of the applicable deferred tax liabiity of $41,392,975.

6.9 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY NOTES TO FINANCIAL STATEMENTS

K., L., M., N.

Not applicable

NOTE 14 Liabilities, Contingencies and Assessments

A. Contingent Commitments

(1) At the end of the reporting period, there were contractual investment commitments of up to $605,277,938. The Company has no commitments related to state tax credit investments at the end of the reporting period.

Total contingent liabilities: $ 605,277,938

(2-3) Not Applicable

B., C., D., E., F.

Not applicable

G. All Other Contingencies

The Company routinely engages in various legal proceedings in the normal course of business, including claims for punitive damages. In the opinion of management, none of such contingencies are expected to have a material effect on the Company’s financial position, although it is possible that the results of operations in a particular quarter or annual period would be materially affected by an adverse development or unfavorable outcome.

NOTE 15 Leases

A. Lessee Operating Lease:

No change

NOTE 16 Information About Financial Instruments With Off-Balance Sheet Risk and Financial Instruments With Concentrations of Credit Risk

Not applicable

NOTE 17 Sale, Transfer and Servicing of Financial Assets and Extinguishments of Liabilities

A., B.

Not applicable

C. Wash Sales

The Company generally does not sell and reacquire securities within 30 days of the sale date. There were no wash sale transactions with a NAIC designation of 3 or below in the current year.

NOTE 18 Gain or Loss to the Reporting Entity from Uninsured Plans and the Uninsured Portion of Partially Insured Plans

Not applicable

NOTE 19 Direct Premium Written/Produced by Managing General Agents/Third Party Administrators

Not applicable

6.10 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY NOTES TO FINANCIAL STATEMENTS

NOTE 20 Fair Value Measurements

A. (1) Fair Value Measurements at Reporting Date

Description for each class Net Asset Value of asset or liability (Level 1) (Level 2) (Level 3) (NAV) Total a. Assets at fair value Preferred Stocks: Industrial and miscellaneous $ - $ - $ 9,218,188 $ - $ 9,218,188 Bonds: Industrial and miscellaneous $ 38,187,419 $ 50,876,331 $ - $ - $ 89,063,750 Common Stocks: Industrial and miscellaneous (a) $ 433,006,794 $ - $ - $ - $ 433,006,794 Other Invested Assets $ - $ - $ 4,005,488 $ - $ 4,005,488 Total assets at fair value/NAV $ 471,194,213 $ 50,876,331 $ 13,223,676 $ - $ 535,294,220 (a) Excludes equities carried at cost of $2,170,500 at the end of the reporting period which consists of FHLB common stock.

b. The Company does not have any liabilities measured at fair value at the end of the current reporting period.

(2) Fair Value Measurements in (Level 3) of the Fair Value hierarchy

Total gains and Total gains and Ending Balance as Transfers Transfers (losses) (losses) Ending Balance of Prior Quarter into out of included in included in for Current Description End Level 3 Level 3 Net Income Surplus Purchases Issuances Sales Settle-ments Quarter End a. Assets Preferred Stocks: Industrial and miscellaneous $ 4,050,000 $ 999,999 $ - $ - $ 4,168,189 $ - $ - $ - $ - $ 9,218,188 Other Invested Assets $ - $ 4,005,488 $ - $ - $ - $ - $ - $ - $ - $ 4,005,488 Total Assets $ 4,050,000 $ 5,005,487 $ - $ - $ 4,168,189 $ - $ - $ - $ - $ 13,223,676

b. Not applicable

c. Transfers into Level 3 are attributable to changes in preferred stock carrying value based on the lower of fair value or call price and other invested assets carried at fair value.

(3) The reporting entity's policy is to recognize transfers in and transfers out as of the actual date of the event or change in circumstances that caused the transfer.

(4) For fair value measurements categorized within Level 2 of the fair value hierarchy, fair values of bonds are obtained by a quoted market price if available, otherwise, fair values are estimated using independent pricing sources or internally developed pricing models using discounted cash flow analyses.

The Company utilizes a third party pricing service for the valuation of the majority of its fixed maturity securities and receives one quote per security. When quoted market prices in an active market are available, they are provided by the pricing service as the fair value and such values are classified as Level 1. Since fixed maturities other than U.S. Treasury securities generally do not trade on a daily basis, the pricing service prepares estimates of fair value for those securities using pricing applications based on a market approach. Inputs into the fair value pricing applications which are common to all asset classes include benchmark U.S. Treasury security yield curves, reported trades of identical or similar fixed maturity securities, broker/dealer quotes of identical or similar fixed maturity securities and structural characteristics of the security, such as maturity date, coupon, mandatory principal payment dates, frequency of interest and principal payments and optional principal redemption features. Inputs into the fair value applications that are unique by asset class include, but are not limited to:

• U.S. government – determination of direct versus indirect government support and whether any contingencies exist with respect to the timely payment of principal and interest.

• All other governments – estimates of appropriate market spread versus underlying related sovereign treasury curves dependent on liquidity and direct or contingent support.

• Corporate bonds, which are included in Industrial and miscellaneous bonds - overall credit quality, including assessments of the level and variability of: economic sensitivity; liquidity; corporate financial policies; management quality; regulatory environment; competitive position; ownership; restrictive covenants; and security or collateral.

• Municipal bonds, which are included in States, territories and possessions; Political subdivisions of states, territories and possessions; and Special revenue and special assessment obligations - overall credit quality, including assessments of the level and variability of: sources of payment such as income, sales or property taxes, levies or user fees; credit support such as insurance; state or local economic and political base; natural resource availability; and susceptibility to natural or man-made catastrophic events such as hurricanes, earthquakes or acts of terrorism.

• Residential mortgage-backed securities, U.S. agency pass-thrus and collateralized mortgage obligations (“CMOs”) which are included in U.S. governments and Special revenue and special assessment obligations - estimates of prepayment speeds based upon: historical prepayment rate trends; underlying collateral interest rates; geographic concentration; vintage year; borrower credit quality characteristics; interest rate and yield curve forecasts; government or monetary authority support programs; tax policies; and delinquency/default trends.

• Residential mortgage-backed securities, non-agency CMOs, which are included in Industrial and miscellaneous bonds - estimates of prepayment speeds based upon: historical prepayment rate trends; underlying collateral interest rates; geographic concentration; vintage year; borrower credit quality characteristics; interest rate and yield curve forecasts; government or monetary authority support programs; tax policies; delinquency/default trends; and severity of loss upon default and length of time to recover proceeds following default.

• Commercial mortgage-backed securities, which are included in Industrial and miscellaneous bonds - overall credit quality, including assessments of the value and supply/demand characteristics of: collateral type such as office, retail, residential, lodging, or other; geographic concentration by region, state, metropolitan statistical area and locale; vintage year; historical collateral performance including defeasance, delinquency, default and special servicer trends; and capital structure support features.

• Asset-backed securities, which are included in Industrial and miscellaneous bonds – overall credit quality, including assessments of the underlying collateral type such as credit card receivables, auto loan receivables and equipment lease receivables; geographic diversification; vintage year; historical collateral performance including delinquency, default and casualty trends; economic conditions influencing use rates and resale values; and contract structural support features.

6.11 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY NOTES TO FINANCIAL STATEMENTS

Generally, all prices provided by the pricing service, except actively traded securities with quoted market prices, are reported as Level 2.

The Company holds privately placed corporate bonds and certain other bonds that do not have an active market and for which the pricing service cannot provide fair values. The Company determines fair values for these securities using either matrix pricing or broker quotes. The Company will use observable market data to the extent it is available, but is also required to use a certain amount of unobservable judgment due to the illiquid nature of the securities involved. Additionally, the Company may obtain nonbinding broker quotes which are reported as Level 3.

Fair values of common and preferred stocks are based on SVO valuation, if available. If SVO valuations are not available, quoted market prices are used. If neither SVO prices nor quoted market prices are available, fair values are estimated using independent pricing sources or internally developed pricing models using discounted cash flow analyses.

Level 2 includes securities that are valued using pricing for similar securities and pricing models that incorporate observable inputs. Level 3 consists of common stock of private companies for which observable inputs are not available. The Company uses a third party pricing service for the valuation of the majority of its equity securities. When quoted market prices in an active market are available, they are provided by the pricing service as the fair value and such values are classified as Level 1. Generally, all prices provided by the pricing service except quoted market prices, are reported as Level 2. Occasionally, the Company may obtain nonbinding broker quotes which are reported as Level 3.

(5) Not applicable

B. Not applicable

C. Aggregate fair value for all financial instruments and the level within the fair value hierarchy in which the fair value measurements in their entirety fall.

Type of Financial Aggregate Net Asset Value Not Practicable Instrument Fair Value Admitted Assets (Level 1) (Level 2) (Level 3) (NAV) (Carrying Value) Bonds $ 5,402,721,195 $ 5,185,382,667 $ 93,340,796 $ 5,296,538,386 $ 12,842,013 $ - $ - Preferred Stock $ 9,218,188 $ 9,218,188 $ - $ - $ 9,218,188 $ - $ - Common Stock (a) $ 435,177,294 $ 435,177,294 $ 433,006,794 $ 2,170,500 $ - $ - $ - Mortgages $ 133,030,076 $ 126,033,452 $ - $ - $ 133,030,076 $ - $ - Other Invested Assets (a) $ 353,560,337 $ 337,347,668 $ - $ 6,712,117 $ 346,848,220 $ - $ - Cash and Short-Term Investments $ (57,529,647) $ (57,529,486) $ (58,868,116) $ 1,338,469 $ - $ - $ - (a) Excludes investments in subsidiaries and other invested assets using the equity method of accounting

D., E.

Not applicable

NOTE 21 Other Items

A. Unusual or Infrequent Items

Not applicable

B. Troubled Debt Restructuring: Debtors

Not applicable

C. Other Disclosures

IBNR loss and loss adjustment expense reserves are allocated to the Company based on the proportion of the Company’s earned premiums and case loss reserves relative to other affiliates in The Hanover Insurance Group. Fluctuations by affiliate and state may occur as a result of this re-estimation process.

The Company elected to use rounding to the nearest dollar in reporting amounts in the Statement, except as otherwise directed by instructions.

At the end of the current period and prior year, the Company had admitted assets of $1,144,975,964 and $1,144,443,223, respectively, in premiums receivable due from policyholders, agents and ceding insurers. The Company routinely assesses the collectability of these receivables. Based upon Company experience, any uncollectible premiums receivable at the end of the current period are not expected to exceed the non admitted amounts totaling $33,784,069 and, therefore, no additional provision for uncollectible amounts has been recorded. The potential for any additional loss is not believed to be material to the Company’s financial position.

The Company reported $123,401,946 on Page 2 Line 15.1 for Agents’ balances or Uncollected Premiums. There are no agents’ balances or uncollected premiums due from controlled or controlling persons.

D. Business Interruption Insurance Recoveries

Not applicable

E. State Transferable and Non-transferable Tax Credits

Not applicable

F. Subprime Mortgage Related Risk Exposure

The Company has reviewed its investments in mortgage-backed securities and has determined that these investments are not subprime.

G. Insurance-Linked Securities (ILS) Contracts

Not applicable

NOTE 22 Events Subsequent

Not applicable

6.12 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY NOTES TO FINANCIAL STATEMENTS

NOTE 23 Reinsurance

A. Unsecured Reinsurance Recoverables

No change

B. Reinsurance Recoverable in Dispute

Not applicable

C. Reinsurance Assumed and Ceded

(1) The following table summarizes ceded and assumed unearned premiums and the related commission equity at the end of the current reporting period:

Assumed Reinsurance Ceded Reinsurance Net

Premium Commission Premium Commission Premium Commission Reserve Equity Reserve Equity Reserve Equity a. Affiliates $1,347,754,923 $ - $ - $ - $1,347,754,923 $ - b. All Other $ 6,837,556 $ 1,200,757 $ 127,788,544 $ 32,043,084 $ (120,950,988) $ (30,842,327) c. Total $1,354,592,479 $ 1,200,757 $ 127,788,544 $ 32,043,084 $1,226,803,935 $ (30,842,327)

d. Direct Unearned Premium Reserve $ 712,237,057

(2) The additional or return commission, predicated on loss experience or any other form of profit sharing arrangements in this annual statement as a result of existing contractual arrangements are accrued as follows:

Direct Assumed Ceded Net a. Contingent Commission $ 32,670,833 $ - $ - $ 32,670,833 b. Sliding Scale Adjustments $ - $ - $ 390,553 $ (390,553) c. Other Profit Commission Arrangements $ - $ - $ - $ - d. TOTAL $ 32,670,833 $ - $ 390,553 $ 32,280,280

(3) Not applicable

D. Uncollectible Reinsurance

No change

E., F., G., H., I., J., K.

Not applicable

NOTE 24 Retrospectively Rated Contracts & Contracts Subject to Redetermination

Not applicable

NOTE 25 Change in Incurred Losses and Loss Adjustment Expenses

A. The estimated cost of loss and loss adjustment expenses (“LAE”) attributable to insured events of prior year’s increased by $3,964,000 during the current year. The deficiency of $3,964,000 is 0.2% of unpaid losses and LAE of $3,991,508,445 as of December 31, 2020. The unfavorable loss is primarily due to higher than expected losses in commercial multi peril, personal auto, homeowners, and other liability lines of business, partially offset by favorable workers compensation and commercial auto lines of business. Increases or decreases generally occur as a result of claim settlements during the current year, and as additional information is received regarding individual claims, causing changes from the original estimates of the costs of these claims. Recent loss development trends are also taken into account evaluating the overall adequacy of unpaid losses and LAE.

B. There were no significant changes in methodologies and assumptions used in calculating the liability for unpaid property and casualty losses and loss adjustment expenses.

NOTE 26 Intercompany Pooling Arrangements

Not applicable

NOTE 27 Structured Settlements

A. The company has purchased annuities from life insurers under which the claimants are payees as follows:

Loss Unrecorded Reserves Loss Eliminated by Contin- Annuities gencies $ 16,166,261 $ 16,166,261 B. Annuity Insurers with Balances due Greater than 1% of Policyholders' Surplus

Not applicable

NOTE 28 Health Care Receivables

Not applicable

NOTE 29 Participating Policies

Not applicable

NOTE 30 Premium Deficiency Reserves

1. Liability carried for premium deficiency reserves $ - 2. Date of the most recent evaluation of this liability 03/31/2021 3. Was anticipated investment income utilized in the calculation? Yes [X] No [ ]

6.13 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY NOTES TO FINANCIAL STATEMENTS

NOTE 31 High Deductibles

No change

NOTE 32 Discounting of Liabilities for Unpaid Losses or Unpaid Loss Adjustment Expenses

Total liabilities for unpaid property and casualty losses and loss adjustment expenses are not discounted. However, case unpaid losses for pension-type workers’ compensation reserves are discounted on a tabular basis using the National Council on Compensation Insurance (“NCCI”) published tables at a rate of 3.5%. This discount is completely offset in the Company’s IBNR reserves.

The Company discounts the Group Accident and Health liabilities for unpaid losses on long term care and medical conversion claims.

A. Tabular Discount

Reserves for Long Term Care claims have been discounted on a tabular basis using the 1994 GAM Table at 4.5%. The reserves as of the end of the current reporting period include $85,978,753 of such discounted reserves. The amount of disocunt for case and IBNR reserves is as follows:

Tabular Discount Included in Schedule P, Part 1* (1) (2) Case IBNR 1. Homeowners/Farmowners $ - $ - 2. Private Passenger Auto Liability/Medical $ - $ - 3. Commercial Auto/Truck Liability/Medical $ - $ - 4. Workers’ Compensation $ - $ - 5. Commercial Multiple Peril $ - $ - 6. Medical Professional Liability - occurrence $ - $ - 7. Medical Professional Liability - claims-made $ - $ - 8. Special Liability $ - $ - 9. Other Liability - occurrence $ - $ - 10. Other Liability - claims-made $ - $ - 11. Special Property $ - $ - 12. Auto Physical Damage $ - $ - 13. Fidelity, Surety $ - $ - 14. Other (including Credit, Accident & Health) $ 32,515,170 $ 20,055,513 15. International $ - $ - 16. Reinsurance Nonproportional Assumed Property $ - $ - 17. Reinsurance Nonproportional Assumed Liability $ - $ - 18. Reinsurance Nonproportional Assumed Financial Lines $ - $ - 19. Products Liability - occurrence $ - $ - 20. Products Liability - claims-made $ - $ - 21. Financial Guaranty/Mortgage Guaranty $ - $ - 22. Warranty $ - $ - 23. Total $ 32,515,170 $ 20,055,513 * Must exclude medical loss reserves and all loss adjustment expense reserves.

B. Nontabular Discount

Reserves for Conversion Trust and Individual Health unpaid losses have been discounted on a non-tabular basis using an interest rate of 4.0%. The reserves as of the end of the current reporting period include $5,940,000 of such discounted reserves. The amount of the discount is as follows:

(1) (2) (3) (4) Defense & Cost Containment Adjusting & Other Case IBNR Expense Expense 1. Homeowners/Farmowners $ - $ - $ - $ - 2. Private Passenger Auto Liability/Medical $ - $ - $ - $ - 3. Commercial Auto/Truck Liability/Medical $ - $ - $ - $ - 4. Workers’ Compensation $ - $ - $ - $ - 5. Commercial Multiple Peril $ - $ - $ - $ - 6. Medical Professional Liability - occurrence $ - $ - $ - $ - 7. Medical Professional Liability - claims-made $ - $ - $ - $ - 8. Special Liability $ - $ - $ - $ - 9. Other Liability - occurrence $ - $ - $ - $ - 10. Other Liability - claims-made $ - $ - $ - $ - 11. Special Property $ - $ - $ - $ - 12. Auto Physical Damage $ - $ - $ - $ - 13. Fidelity, Surety $ - $ - $ - $ - 14. Other (including Credit, Accident & Health) $ 2,455,485 $ - $ - $ - 15. International $ - $ - $ - $ - 16. Reinsurance Nonproportional Assumed Property $ - $ - $ - $ - 17. Reinsurance Nonproportional Assumed Liability $ - $ - $ - $ - 18. Reinsurance Nonproportional Assumed Financial Lines $ - $ - $ - $ - 19. Products Liability - occurrence $ - $ - $ - $ - 20. Products Liability - claims-made $ - $ - $ - $ - 21. Financial Guaranty/Mortgage Guaranty $ - $ - $ - $ - 22. Warranty $ - $ - $ - $ - 23. Total $ 2,455,485 $ - $ - $ - ** Should include medical loss reserves and all loss adjustment expense reserves, whether reported as tabular or nontabular in Schedule P.

C. Changes in Discount Assumptions

Not applicable

6.14 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY NOTES TO FINANCIAL STATEMENTS

NOTE 33 Asbestos/Environmental Reserves

No change

NOTE 34 Subscriber Savings Accounts

Not applicable

NOTE 35 Multiple Peril Crop Insurance

Not applicable

NOTE 36 Financial Guaranty Insurance

Not applicable

6.15 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY GENERAL INTERROGATORIES

PART 1 - COMMON INTERROGATORIES

GENERAL

1.1 Did the reporting entity experience any material transactions requiring the filing of Disclosure of Material Transactions with the State of Domicile, as required by the Model Act? Yes [ ] No [ X ]

1.2 If yes, has the report been filed with the domiciliary state? Yes [ ] No [ ]

2.1 Has any change been made during the year of this statement in the charter, by-laws, articles of incorporation, or deed of settlement of the reporting entity? Yes [ ] No [ X ]

2.2 If yes, date of change:

3.1 Is the reporting entity a member of an Insurance Holding Company System consisting of two or more affiliated persons, one or more of which is an insurer? Yes [ X ] No [ ] If yes, complete Schedule Y, Parts 1 and 1A.

3.2 Have there been any substantial changes in the organizational chart since the prior quarter end? Yes [ ] No [ X ]

3.3 If the response to 3.2 is yes, provide a brief description of those changes.

3.4 Is the reporting entity publicly traded or a member of a publicly traded group? Yes [ X ] No [ ]

3.5 If the response to 3.4 is yes, provide the CIK (Central Index Key) code issued by the SEC for the entity/group. 0000944695

4.1 Has the reporting entity been a party to a merger or consolidation during the period covered by this statement? Yes [ ] No [ X ] If yes, complete and file the merger history data file with the NAIC.

4.2 If yes, provide the name of the entity, NAIC Company Code, and state of domicile (use two letter state abbreviation) for any entity that has ceased to exist as a result of the merger or consolidation.

1 2 3 Name of Entity NAIC Company Code State of Domicile

5. If the reporting entity is subject to a management agreement, including third-party administrator(s), managing general agent(s), attorney- in-fact, or similar agreement, have there been any significant changes regarding the terms of the agreement or principals involved? Yes [ ] No [ ] N/A [ X ] If yes, attach an explanation.

6.1 State as of what date the latest financial examination of the reporting entity was made or is being made. 12/31/2019

6.2 State the as of date that the latest financial examination report became available from either the state of domicile or the reporting entity. This date should be the date of the examined balance sheet and not the date the report was completed or released. 12/31/2019

6.3 State as of what date the latest financial examination report became available to other states or the public from either the state of domicile or the reporting entity. This is the release date or completion date of the examination report and not the date of the examination (balance sheet date). 04/01/2021

6.4 By what department or departments? New Hampshire Department of Insurance 6.5 Have all financial statement adjustments within the latest financial examination report been accounted for in a subsequent financial statement filed with Departments? Yes [ ] No [ ] N/A [ X ]

6.6 Have all of the recommendations within the latest financial examination report been complied with? Yes [ ] No [ ] N/A [ X ]

7.1 Has this reporting entity had any Certificates of Authority, licenses or registrations (including corporate registration, if applicable) suspended or revoked by any governmental entity during the reporting period? Yes [ ] No [ X ]

7.2 If yes, give full information:

8.1 Is the company a subsidiary of a bank holding company regulated by the Federal Reserve Board? Yes [ ] No [ X ]

8.2 If response to 8.1 is yes, please identify the name of the bank holding company.

8.3 Is the company affiliated with one or more banks, thrifts or securities firms? Yes [ X ] No [ ]

8.4 If response to 8.3 is yes, please provide below the names and location (city and state of the main office) of any affiliates regulated by a federal regulatory services agency [i.e. the Federal Reserve Board (FRB), the Office of the Comptroller of the Currency (OCC), the Federal Deposit Insurance Corporation (FDIC) and the Securities Exchange Commission (SEC)] and identify the affiliate's primary federal regulator.

1 2 3 4 5 6 Affiliate Name Location (City, State) FRB OCC FDIC SEC Opus Investment Management, Inc. Worcester, MA YES

7 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY GENERAL INTERROGATORIES

9.1 Are the senior officers (principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions) of the reporting entity subject to a code of ethics, which includes the following standards ? Yes [ X ] No [ ] (a) Honest and ethical conduct, including the ethical handling of actual or apparent conflicts of interest between personal and professional relationships; (b) Full, fair, accurate, timely and understandable disclosure in the periodic reports required to be filed by the reporting entity; (c) Compliance with applicable governmental laws, rules and regulations; (d) The prompt internal reporting of violations to an appropriate person or persons identified in the code; and (e) Accountability for adherence to the code. 9.11 If the response to 9.1 is No, please explain:

9.2 Has the code of ethics for senior managers been amended ? Yes [ ] No [ X ] 9.21 If the response to 9.2 is Yes, provide information related to amendment(s).

9.3 Have any provisions of the code of ethics been waived for any of the specified officers ? Yes [ ] No [ X ] 9.31 If the response to 9.3 is Yes, provide the nature of any waiver(s).

FINANCIAL

10.1 Does the reporting entity report any amounts due from parent, subsidiaries or affiliates on Page 2 of this statement? Yes [ X ] No [ ] 10.2 If yes, indicate any amounts receivable from parent included in the Page 2 amount: $ 436,539

INVESTMENT

11.1 Were any of the stocks, bonds, or other assets of the reporting entity loaned, placed under option agreement, or otherwise made available for use by another person? (Exclude securities under securities lending agreements.) Yes [ ] No [ X ] 11.2 If yes, give full and complete information relating thereto:

12. Amount of real estate and mortgages held in other invested assets in Schedule BA: $ 322,700,382 13. Amount of real estate and mortgages held in short-term investments: $ 0 14.1 Does the reporting entity have any investments in parent, subsidiaries and affiliates? Yes [ X ] No [ ] 14.2 If yes, please complete the following: 1 2 Prior Year-End Current Quarter Book/Adjusted Book/Adjusted Carrying Value Carrying Value 14.21 Bonds $ 0 $ 0 14.22 Preferred Stock $ 0 $ 0 14.23 Common Stock $ 1,250,639,143 $ 1,304,097,145 14.24 Short-Term Investments $ 0 $ 0 14.25 Mortgage Loans on Real Estate $ 0 $ 0 14.26 All Other $ 0 $ 0 14.27 Total Investment in Parent, Subsidiaries and Affiliates (Subtotal Lines 14.21 to 14.26) $ 1,250,639,143 $ 1,304,097,145 14.28 Total Investment in Parent included in Lines 14.21 to 14.26 above $ 0 $ 0

15.1 Has the reporting entity entered into any hedging transactions reported on Schedule DB? Yes [ ] No [ X ] 15.2 If yes, has a comprehensive description of the hedging program been made available to the domiciliary state? Yes [ ] No [ ] N/A [ ] If no, attach a description with this statement.

16. For the reporting entity’s security lending program, state the amount of the following as of the current statement date: 16.1 Total fair value of reinvested collateral assets reported on Schedule DL, Parts 1 and 2. $ 0 16.2 Total book adjusted/carrying value of reinvested collateral assets reported on Schedule DL, Parts 1 and 2 $ 0 16.3 Total payable for securities lending reported on the liability page. $ 0

7.1 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY GENERAL INTERROGATORIES

17. Excluding items in Schedule E - Part 3 - Special Deposits , real estate, mortgage loans and investments held physically in the reporting entity’s offices, vaults or safety deposit boxes, were all stocks, bonds and other securities, owned throughout the current year held pursuant to a custodial agreement with a qualified bank or trust company in accordance with Section 1, III - General Examination Considerations, F. Outsourcing of Critical Functions, Custodial or Safekeeping Agreements of the NAIC Financial Condition Examiners Handbook? Yes [ X ] No [ ] 17.1 For all agreements that comply with the requirements of the NAIC Financial Condition Examiners Handbook, complete the following:

1 2 Name of Custodian(s) Custodian Address Bank of New York Mellon 225 Liberty Street, New York, NY 10286

17.2 For all agreements that do not comply with the requirements of the NAIC Financial Condition Examiners Handbook, provide the name, location and a complete explanation: 1 2 3 Name(s) Location(s) Complete Explanation(s)

17.3 Have there been any changes, including name changes, in the custodian(s) identified in 17.1 during the current quarter? Yes [ ] No [ X ] 17.4 If yes, give full information relating thereto:

1 2 3 4 Old Custodian New Custodian Date of Change Reason

17.5 Investment management – Identify all investment advisors, investment managers, broker/dealers, including individuals that have the authority to make investment decisions on behalf of the reporting entity. For assets that are managed internally by employees of the reporting entity, note as such. ["…that have access to the investment accounts"; "…handle securities"] 1 2 Name of Firm or Individual Affiliation Opus Investment Management, Inc. A

17.5097 For those firms/individuals listed in the table for Question 17.5, do any firms/individuals unaffiliated with the reporting entity (i.e. designated with a "U") manage more than 10% of the reporting entity’s invested assets? Yes [ ] No [ ]

17.5098 For firms/individuals unaffiliated with the reporting entity (i.e. designated with a "U") listed in the table for Question 17.5, does the total assets under management aggregate to more than 50% of the reporting entity’s invested assets? Yes [ ] No [ ]

17.6 For those firms or individuals listed in the table for 17.5 with an affiliation code of "A" (affiliated) or "U" (unaffiliated), provide the information for the table below. 1 2 3 4 5 Investment Management Central Registration Agreement Depository Number Name of Firm or Individual Legal Entity Identifier (LEI) Registered With (IMA) Filed 107569 Opus Investment Management, Inc. SEC DS

18.1 Have all the filing requirements of the Purposes and Procedures Manual of the NAIC Investment Analysis Office been followed? Yes [ X ] No [ ] 18.2 If no, list exceptions:

19. By self-designating 5GI securities, the reporting entity is certifying the following elements for each self-designated 5GI security: a. Documentation necessary to permit a full credit analysis of the security does not exist or an NAIC CRP credit rating for an FE or PL security is not available. b. Issuer or obligor is current on all contracted interest and principal payments. c. The insurer has an actual expectation of ultimate payment of all contracted interest and principal. Has the reporting entity self-designated 5GI securities? Yes [ ] No [ X ]

20. By self-designating PLGI securities, the reporting entity is certifying the following elements of each self-designated PLGI security: a. The security was purchased prior to January 1, 2018. b. The reporting entity is holding capital commensurate with the NAIC Designation reported for the security. c. The NAIC Designation was derived from the credit rating assigned by an NAIC CRP in its legal capacity as a NRSRO which is shown on a current private letter rating held by the insurer and available for examination by state insurance regulators. d. The reporting entity is not permitted to share this credit rating of the PL security with the SVO. Has the reporting entity self-designated PLGI securities? Yes [ ] No [ X ]

21. By assigning FE to a Schedule BA non-registered private fund, the reporting entity is certifying the following elements of each self-designated FE fund: a. The shares were purchased prior to January 1, 2019. b. The reporting entity is holding capital commensurate with the NAIC Designation reported for the security. c. The security had a public credit rating(s) with annual surveillance assigned by an NAIC CRP in its legal capacity as an NRSRO prior to January 1, 2019. d. The fund only or predominantly holds bonds in its portfolio. e. The current reported NAIC Designation was derived from the public credit rating(s) with annual surveillance assigned by an NAIC CRP in its legal capacity as an NRSRO. f. The public credit rating(s) with annual surveillance assigned by an NAIC CRP has not lapsed. Has the reporting entity assigned FE to Schedule BA non-registered private funds that complied with the above criteria? Yes [ ] No [ X ]

7.2 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY GENERAL INTERROGATORIES

PART 2 - PROPERTY & CASUALTY INTERROGATORIES

1. If the reporting entity is a member of a pooling arrangement, did the agreement or the reporting entity’s participation change? Yes [ ] No [ ] N/A [ X ] If yes, attach an explanation.

2. Has the reporting entity reinsured any risk with any other reporting entity and agreed to release such entity from liability, in whole or in part, from any loss that may occur on the risk, or portion thereof, reinsured? Yes [ ] No [ X ] If yes, attach an explanation.

3.1 Have any of the reporting entity’s primary reinsurance contracts been canceled? Yes [ ] No [ X ]

3.2 If yes, give full and complete information thereto.

4.1 Are any of the liabilities for unpaid losses and loss adjustment expenses other than certain workers’ compensation tabular reserves (see Annual Statement Instructions pertaining to disclosure of discounting for definition of “ tabular reserves” ) discounted at a rate of interest greater than zero? Yes [ X ] No [ ]

4.2 If yes, complete the following schedule:

TOTAL DISCOUNT DISCOUNT TAKEN DURING PERIOD 1 2 3 4 5 6 7 8 9 10 11 Maximum Discount Unpaid Unpaid Unpaid Unpaid Line of Business Interest Rate Losses LAE IBNR TOTAL Losses LAE IBNR TOTAL Long Term Care 0.0 0.045 32,515,000 0 20,056,000 52,571,000 598,000 0 369,000 967,000 TOTAL 32,515,000 0 20,056,000 52,571,000 598,000 0 369,000 967,000

5. Operating Percentages:

5.1 A&H loss percent 440.220 %

5.2 A&H cost containment percent 0.000 %

5.3 A&H expense percent excluding cost containment expenses 40.920 %

6.1 Do you act as a custodian for health savings accounts? Yes [ ] No [ X ]

6.2 If yes, please provide the amount of custodial funds held as of the reporting date $ 0

6.3 Do you act as an administrator for health savings accounts? Yes [ ] No [ X ]

6.4 If yes, please provide the balance of the funds administered as of the reporting date $ 0

7. Is the reporting entity licensed or chartered, registered, qualified, eligible or writing business in at least two states? Yes [ X ] No [ ]

7.1 If no, does the reporting entity assume reinsurance business that covers risks residing in at least one state other than the state of domicile of the reporting entity? Yes [ ] No [ ]

8 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE F - CEDED REINSURANCE Showing All New Reinsurers - Current Year to Date 1 2 3 4 5 6 7 Effective Certified Date of NAIC Reinsurer Certified Company ID Domiciliary Rating Reinsurer Code Number Name of Reinsurer Jurisdiction Type of Reinsurer (1 through 6) Rating

9 NONE STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE T - EXHIBIT OF PREMIUMS WRITTEN Current Year to Date - Allocated by States and Territories 1 Direct Premiums Written Direct Losses Paid (Deducting Salvage) Direct Losses Unpaid Active 2 3 4 5 6 7 Status Current Year Prior Year Current Year Prior Year Current Year Prior Year States, etc. (a) To Date To Date To Date To Date To Date To Date 1. Alabama AL L 1,486,835 1,416,299 1,071,868 1,851,775 5,436,668 5,149,533 2. Alaska AK L 190,946 147,725 19,507 (215) 900,884 754,981 3. Arizona AZ L 4,425,317 4,173,726 416,368 3,848,217 12,705,724 14,261,449 4. Arkansas AR L 1,858,721 2,151,061 1,020,435 1,446,845 6,891,534 6,938,684 5. California CA L 28,171,027 26,545,596 6,983,819 13,946,010 95,390,905 73,880,202 6. Colorado CO L 8,574,083 8,071,982 932,151 1,945,898 10,936,238 11,939,575 7. Connecticut CT L 11,002,496 9,303,118 3,293,823 2,678,759 34,705,912 29,098,207 8. Delaware DE L 842,162 608,605 69,719 137,494 1,950,949 1,434,486 9. District of Columbia DC L 2,405,301 2,729,649 404,804 494,815 13,341,795 14,354,179 10. Florida FL L 9,230,963 10,416,312 1,991,050 8,939,885 40,084,701 34,895,706 11. Georgia GA L 11,795,834 11,547,228 7,309,669 4,742,990 31,317,660 28,527,445 12. Hawaii HI L 135,871 135,474 3,017 23,952 236,469 274,334 13. Idaho ID L 452,818 627,065 341,146 376,067 726,884 1,153,057 14. Illinois IL L 13,863,967 12,788,267 2,728,243 2,629,777 40,299,496 36,313,352 15. Indiana IN L 9,454,651 9,139,209 2,543,440 4,935,285 21,580,726 17,641,758 16. Iowa IA L 772,153 601,892 87,980 (9,692) 1,320,109 520,977 17. Kansas KS L 1,096,824 1,218,326 1,069,007 1,905,131 10,669,559 10,164,838 18. Kentucky KY L 2,006,004 1,812,183 290,523 16,577 4,962,530 4,556,453 19. Louisiana LA L 3,062,442 3,094,539 413,276 405,848 10,141,505 13,074,288 20. Maine ME L 8,831,911 8,170,313 2,632,873 2,150,485 37,260,426 32,907,371 21. Maryland MD L 6,921,707 4,871,815 3,008,436 1,646,561 10,621,313 10,188,685 22. Massachusetts MA L 43,344,385 37,696,227 12,044,573 11,559,054 92,137,564 78,209,946 23. Michigan MI L 16,382,279 15,285,846 3,538,402 2,897,284 30,361,974 31,151,709 24. Minnesota MN L 10,405,921 9,042,145 1,806,147 4,322,246 16,842,481 18,873,446 25. Mississippi MS L 617,741 594,822 136,277 125,539 10,094,078 3,705,506 26. Missouri MO L 2,175,713 2,021,843 154,628 1,278,303 3,984,578 3,630,174 27. Montana MT L 664,450 433,848 324,593 187,598 1,367,370 720,820 28. Nebraska NE L 319,194 271,285 39,777 24,105 2,735,096 866,414 29. Nevada NV L 1,421,315 1,519,992 51,900 128,413 4,398,830 3,793,888 30. New Hampshire NH L 5,496,644 4,462,989 621,842 1,758,715 16,940,438 14,412,588 31. New Jersey NJ L 30,608,881 28,052,130 9,980,632 10,929,821 110,901,705 96,547,521 32. New Mexico NM L 1,082,079 963,883 692,176 254,416 1,428,463 1,812,457 33. New York NY L 35,840,220 35,193,539 17,523,708 9,932,684 151,379,927 148,015,552 34. North Carolina NC L 8,606,698 8,670,719 1,695,227 2,133,477 24,770,737 15,229,266 35. North Dakota ND L 833,043 681,009 1,094,640 65,171 752,067 882,920 36. Ohio OH L 8,176,850 7,894,408 2,462,326 3,784,349 17,688,782 17,874,542 37. Oklahoma OK L 3,785,095 4,043,327 1,816,428 2,096,782 6,856,846 7,190,366 38. Oregon OR L 3,331,117 3,150,589 1,918,135 2,829,262 24,074,509 17,368,111 39. Pennsylvania PA L 11,454,280 9,389,855 3,803,188 2,960,777 25,341,673 17,882,508 40. Rhode Island RI L 2,192,732 2,228,634 759,355 284,760 4,966,195 3,848,709 41. South Carolina SC L 4,263,402 3,229,665 672,481 816,553 6,824,714 7,333,221 42. South Dakota SD L 654,221 463,253 346,067 123,260 (1,144,314) (1,231,198) 43. Tennessee TN L 7,379,858 7,302,448 5,914,249 4,412,655 18,187,263 22,999,415 44. Texas TX L 29,073,542 27,504,021 8,295,005 11,220,509 90,760,020 52,027,301 45. Utah UT L 1,883,140 1,749,839 876,733 863,811 12,873,515 5,583,410 46. Vermont VT L 2,244,907 1,711,583 410,068 239,149 4,771,941 5,574,525 47. Virginia VA L 12,233,815 11,904,594 2,417,742 3,177,871 19,526,880 23,969,801 48. Washington WA L 6,134,443 6,122,213 2,213,987 1,996,615 17,404,899 13,924,307 49. West Virginia WV L 1,052,860 1,012,896 319,145 32,081 2,162,574 1,781,653 50. Wisconsin WI L 7,967,516 6,984,155 2,408,650 1,541,658 13,224,880 11,001,457 51. Wyoming WY L 271,298 307,178 143,972 290,104 367,441 736,399 52. American Samoa AS N 0 0 0 0 0 0 53. Guam GU N 0 0 0 0 0 0 54. Puerto Rico PR N 213 9,532 0 0 226 73 55. U.S. Virgin Islands VI N 0 0 0 0 0 0 56. Northern Mariana Islands MP N 0 0 0 0 0 0 57. Canada CAN N 67,890 81,774 300 0 298,903 187,680 58. Aggregate Other Alien OT XXX 526,797 421,989 11,044 0 102,878 474,525 59. Totals XXX 387,074,572 359,972,614 121,124,551 136,379,486 1,123,867,120 974,408,572 DETAILS OF WRITE-INS 58001. AGO Angola XXX 0 0 0 0 0 0 58002. DZA Algeria XXX 0 0 0 0 0 0 58003. ABW Aruba XXX 0 0 0 0 0 0 58998. Summary of remaining write-ins for Line 58 from overflow page XXX 526,797 421,989 11,044 0 102,878 474,525 58999. Totals (Lines 58001 through 58003 plus 58998)(Line 58 above) XXX 526,797 421,989 11,044 0 102,878 474,525 (a) Active Status Counts: L - Licensed or Chartered - Licensed Insurance carrier or domiciled RRG 51 R - Registered - Non-domiciled RRGs 0 E - Eligible - Reporting entities eligible or approved to write surplus lines in the state (other Q - Qualified - Qualified or accredited reinsurer 0 than their state of domicile - see DSLI) 0 N - None of the above - Not allowed to write D - Domestic Surplus Lines Insurer (DSLI) - Reporting entities authorized to write surplus business in the state 6 lines in the state of domicile 0

10 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY 11 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE Y PART 1A - DETAIL OF INSURANCE HOLDING COMPANY SYSTEM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Type If of Control Control (Ownership, is Is an Name of Securities Relation- Board, Owner- SCA Exchange Domi- ship Management, ship Filing NAIC if Publicly Traded Names of ciliary to Attorney-in-Fact, Provide Re- Group Company ID Federal (U.S. or Parent, Subsidiaries Loca- Reporting Directly Controlled by Influence, Percen- Ultimate Controlling quired? Code Group Name Code Number RSSD CIK International) Or Affiliates tion Entity (Name of Entity/Person) Other) tage Entity(ies)/Person(s) (Y/N) * The Hanover Insurance Group 80-0266582 440 Lincoln Street Holding Company LLC MA NIA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N The Hanover Insurance Group 84-3300049 AIXHI LLC MA NIA Nova Casualty Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N The Hanover Insurance Group 27-1304098 AIX Insurance Services of California, Inc. CA NIA AIX, Inc. Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N 0088 The Hanover Insurance Group 12833 20-5233538 AIX Specialty Insurance Company DE IA Nova Casualty Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N The Hanover Insurance Group 20-3051651 AIX, Inc. DE NIA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N 0088 The Hanover Insurance Group 10212 04-3272695 Allmerica Financial Alliance Insurance Co. NH IA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N 0088 The Hanover Insurance Group 41840 23-2643430 Allmerica Financial Benefit Insurance Co. MI IA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N The Hanover Insurance Group 04-3194493 Allmerica Plus Insurance Agency, Inc. MA NIA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N The Hanover Insurance Group Allmerica Securities Trust MA NIA The Hanover Insurance Group, Inc. Management 100.000 The Hanover Insurance Group, Inc. N The Hanover Insurance Group 54-1632456 Campania Holding Company, Inc. VA NIA The Hanover Insurance Group, Inc. Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N 0088 The Hanover Insurance Group 12260 52-1827116 Campmed Casualty & Indemnity Co. Inc. NH IA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N 0088 The Hanover Insurance Group 31534 38-0421730 Citizens Insurance Company of America MI IA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N 0088 The Hanover Insurance Group 10714 36-4123481 Citizens Insurance Company of Illinois IL IA Opus Investment Management, Inc. Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N 0088 The Hanover Insurance Group 10176 38-3167100 Citizens Insurance Company of Ohio OH IA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N 0088 The Hanover Insurance Group 10395 35-1958418 Citizens Insurance Company of the Midwest IN IA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N The Hanover Insurance Group 27-1652700 CitySquare II Development Co., L.L.C MA NIA Opus Investment Management, Inc. Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N The Hanover Insurance Group 27-3626264 CitySquare II Investment Co., L.L.C MA NIA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N The Hanover Insurance Group 27-2400275 Educators Insurance Agency, Inc. MA NIA The Hanover Insurance Group, Inc. Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N The Hanover Insurance Group 38-4000989 Front Street Financing LLC MA NIA CitySquare II Investment Co. LLC Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N

12 The Hanover Insurance Group 52-1172293 Hanover Specialty Insurance Brokers, Inc. VA NIA Verlan Holdings, Inc. Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N 0088 The Hanover Insurance Group 22306 04-2217600 Massachusetts Bay Insurance Company NH IA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N The Hanover Insurance Group 84-3309673 NAG Merger LLC MA NIA AIXHI LLC Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N 0088 The Hanover Insurance Group 42552 16-1140177 NOVA Casualty Company NY IA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N The Hanover Insurance Group 04-2854021 Opus Investment Management, Inc. MA UDP The Hanover Insurance Group, Inc. Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N The Hanover Insurance Group 38-3324634 Professionals Direct, Inc. MI NIA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N 0088 The Hanover Insurance Group 36064 04-3063898 The Hanover American Insurance Company NH IA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N The Hanover Insurance Group 98-1303999 The Hanover Atlantic Insurance Company Ltd. BMU IA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. Y 0088 The Hanover Insurance Group 41602 75-1827351 The Hanover Casualty Company TX IA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N 0088 The Hanover Insurance Group 22292 13-5129825 The Hanover Insurance Company NH RE Opus Investment Management, Inc. Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N 0088 The Hanover Insurance Group 04-3263626 The Hanover Insurance Group, Inc. DE UIP 0.000 N 0088 The Hanover Insurance Group 13147 74-3242673 The Hanover National Insurance Company NH IA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N 0088 The Hanover Insurance Group 11705 86-1070355 The Hanover New Jersey Insurance Company NH IA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N The Hanover Insurance Group 04-2448927 VeraVest Investments, Inc. MA NIA The Hanover Insurance Group, Inc. Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N 0088 The Hanover Insurance Group 10815 52-0903682 Verlan Fire Insurance Company NH IA The Hanover Insurance Company Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N The Hanover Insurance Group 52-2044133 Verlan Holdings, Inc. MD NIA The Hanover Insurance Group, Inc. Ownership, Board,Management 100.000 The Hanover Insurance Group, Inc. N

Asterisk NONEExplanation STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY PART 1 - LOSS EXPERIENCE Current Year to Date 4 1 2 3 Prior Year to Date Direct Premiums Direct Losses Direct Loss Direct Loss Line of Business Earned Incurred Percentage Percentage 1. Fire 2,330,423 983,224 42.2 30.1 2. Allied Lines 10,457,606 4,191,875 40.1 29.4 3. Farmowners multiple peril 0 0 0.0 0.0 4. Homeowners multiple peril 35,437,224 21,197,406 59.8 41.1 5. Commercial multiple peril 58,722,269 26,579,530 45.3 38.6 6. Mortgage guaranty 0 0 0.0 0.0 8. Ocean marine 12,979,355 3,148,389 24.3 37.1 9. Inland marine 53,898,613 24,377,422 45.2 42.5 10. Financial guaranty 0 0 0.0 0.0 11.1 Medical professional liability - occurrence 521 29 5.6 0.0 11.2 Medical professional liability - claims-made 0 (3) 0.0 0.0 12. Earthquake 503,487 33,587 6.7 12.3 13. Group accident and health 0 0 0.0 0.0 14. Credit accident and health 0 0 0.0 0.0 15. Other accident and health 0 0 0.0 0.0 16. Workers’ compensation 17,934,497 4,609,318 25.7 45.9 17.1 Other liability - occurrence 40,744,863 23,800,407 58.4 41.3 17.2 Other liability - claims-made 64,452,548 22,575,905 35.0 47.8 17.3 Excess workers’ compensation 0 0 0.0 0.0 18.1 Products liability - occurrence 730,677 190,269 26.0 (12.7) 18.2 Products liability - claims-made 1,261,219 112,576 8.9 13.7 19.1,19.2 Private passenger auto liability 20,784,552 11,960,213 57.5 61.0 19.3,19.4 Commercial auto liability 4,700,245 3,509,760 74.7 86.3 21. Auto physical damage 18,468,245 6,049,666 32.8 53.6 22. Aircraft (all perils) 0 0 0.0 0.0 23. Fidelity 6,086,632 1,426,327 23.4 38.1 24. Surety 17,540,605 19,991,808 114.0 30.1 26. Burglary and theft 2,687,432 3,320,552 123.6 45.2 27. Boiler and machinery 860,261 269,822 31.4 8.4 28. Credit 0 0 0.0 0.0 29. International 191,078 122,111 63.9 31.2 30. Warranty 0 0 0.0 0.0 31. Reinsurance - Nonproportional Assumed Property XXX XXX XXX XXX 32. Reinsurance - Nonproportional Assumed Liability XXX XXX XXX XXX 33. Reinsurance - Nonproportional Assumed Financial Lines XXX XXX XXX XXX 34. Aggregate write-ins for other lines of business 0 0 0.0 0.0 35. Totals 370,772,352 178,450,193 48.1 43.1 DETAILS OF WRITE-INS 3401. 3402. 3403. 3498. Summary of remaining write-ins for Line 34 from overflow page 0 0 0.0 0.0 3499. Totals (Lines 3401 through 3403 plus 3498)(Line 34 above) 0 0 0.0 0.0

PART 2 - DIRECT PREMIUMS WRITTEN 1 2 3 Current Prior Year Line of Business Current Quarter Year to Date Year to Date 1. Fire 2,681,117 2,681,117 2,055,597 2. Allied Lines 10,734,669 10,734,669 10,586,053 3. Farmowners multiple peril 0 0 0 4. Homeowners multiple peril 31,946,530 31,946,530 29,971,888 5. Commercial multiple peril 60,514,380 60,514,380 58,092,457 6. Mortgage guaranty 0 0 0 8. Ocean marine 12,395,317 12,395,317 12,557,538 9. Inland marine 54,280,133 54,280,133 52,193,931 10. Financial guaranty 0 0 0 11.1 Medical professional liability - occurrence 0 0 0 11.2 Medical professional liability - claims-made 0 0 0 12. Earthquake 506,379 506,379 475,880 13. Group accident and health 0 0 0 14. Credit accident and health 0 0 0 15. Other accident and health 0 0 0 16. Workers’ compensation 18,489,831 18,489,831 20,848,341 17.1 Other liability - occurrence 43,949,728 43,949,728 37,902,137 17.2 Other liability - claims-made 75,897,785 75,897,785 65,059,509 17.3 Excess workers’ compensation 0 0 0 18.1 Products liability - occurrence 676,119 676,119 764,028 18.2 Products liability - claims-made 1,547,747 1,547,747 956,350 19.1,19.2 Private passenger auto liability 21,414,253 21,414,253 18,897,906 19.3,19.4 Commercial auto liability 4,898,588 4,898,588 5,160,095 21. Auto physical damage 19,922,156 19,922,156 16,495,403 22. Aircraft (all perils) 0 0 0 23. Fidelity 6,247,518 6,247,518 6,209,116 24. Surety 17,216,045 17,216,045 18,214,152 26. Burglary and theft 2,741,443 2,741,443 2,526,306 27. Boiler and machinery 870,694 870,694 923,484 28. Credit 0 0 0 29. International 144,140 144,140 82,443 30. Warranty 0 0 0 31. Reinsurance - Nonproportional Assumed Property XXX XXX XXX 32. Reinsurance - Nonproportional Assumed Liability XXX XXX XXX 33. Reinsurance - Nonproportional Assumed Financial Lines XXX XXX XXX 34. Aggregate write-ins for other lines of business 0 0 0 35. Totals 387,074,572 387,074,572 359,972,614 DETAILS OF WRITE-INS 3401. 3402. 3403. 3498. Summary of remaining write-ins for Line 34 from overflow page 0 0 0 3499. Totals (Lines 3401 through 3403 plus 3498)(Line 34 above) 0 0 0

13 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY PART 3 (000 omitted) LOSS AND LOSS ADJUSTMENT EXPENSE RESERVES SCHEDULE 1 2 3 4 5 6 7 8 9 10 11 12 13 Prior Year-End Prior Year-End Q.S. Date Known Known Case Loss IBNR Loss and Prior Year-End 2021 Loss and Q.S. Date Known Case Loss and and LAE Reserves LAE Reserves Total Loss and Total Prior 2021 Loss and LAE Payments on Case Loss and LAE Reserves on Developed Developed LAE Reserve Prior Year- Year-End Loss LAE Payments on Claims Total 2021 Loss LAE Reserves on Claims Reported Total Q.S. Loss (Savings)/ (Savings)/ Developed Years in Which Prior Year-End End IBNR and LAE Claims Reported Unreported and LAE Claims Reported or Reopened Q.S. Date IBNR and LAE Deficiency Deficiency (Savings)/ Losses Known Case Loss Loss and LAE Reserves as of Prior as of Prior Payments and Open as of Subsequent to Loss and LAE Reserves (Cols.4+7 (Cols. 5+8+9 Deficiency Occurred and LAE Reserves Reserves (Cols. 1+2) Year-End Year-End (Cols. 4+5) Prior Year End Prior Year End Reserves (Cols.7+8+9) minus Col. 1) minus Col. 2) (Cols. 11+12) 1. 2018 + Prior 1,123,924 684,533 1,808,457 100,426 3,104 103,530 1,050,152 11,916 634,856 1,696,924 26,654 (34,657) (8,003) 2. 2019 438,576 396,496 835,072 57,304 10,688 67,992 399,659 12,822 366,914 779,395 18,387 (6,072) 12,315 3. Subtotals 2019 + Prior 1,562,500 1,081,029 2,643,529 157,730 13,792 171,522 1,449,811 24,738 1,001,770 2,476,319 45,041 (40,729) 4,312 4. 2020 491,001 856,978 1,347,979 143,843 44,443 188,286 409,322 55,408 694,615 1,159,345 62,164 (62,512) (348) 5. Subtotals 2020 + Prior 2,053,501 1,938,007 3,991,508 301,573 58,235 359,808 1,859,133 80,146 1,696,385 3,635,664 107,205 (103,241) 3,964 6. 2021 XXX XXX XXX XXX 130,778 130,778 XXX 206,969 315,073 522,042 XXX XXX XXX 7. Totals 2,053,501 1,938,007 3,991,508 301,573 189,013 490,586 1,859,133 287,115 2,011,458 4,157,706 107,205 (103,241) 3,964 8. Prior Year-End Surplus Col. 11, Line 7 Col. 12, Line 7 Col. 13, Line 7 As Regards As % of Col. 1 As % of Col. 2 As % of Col. 3 Policyholders 2,582,876 Line 7 Line 7 Line 7 1. 5.2 2. (5.3) 3. 0.1 Col. 13, Line 7 As a % of Col. 1

14 Line 8 4. 0.2

STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SUPPLEMENTAL EXHIBITS AND SCHEDULES INTERROGATORIES

The following supplemental reports are required to be filed as part of your statement filing. However, in the event that your company does not transact the type of business for which the special report must be filed, your response of NO to the specific interrogatory will be accepted in lieu of filing a “NONE” report and a bar code will be printed below. If the supplement is required of your company but is not being filed for whatever reason enter SEE EXPLANATION and provide an explanation following the interrogatory questions.

Response

1. Will the Trusteed Surplus Statement be filed with the state of domicile and the NAIC with this statement? NO

2. Will Supplement A to Schedule T (Medical Professional Liability Supplement) be filed with this statement? NO

3. Will the Medicare Part D Coverage Supplement be filed with the state of domicile and the NAIC with this statement? NO

4. Will the Director and Officer Insurance Coverage Supplement be filed with the state of domicile and the NAIC with this statement? YES

Explanations:

1.

2.

3.

Bar Codes: 1. Trusteed Surplus Statement [Document Identifier 490] *22292202149000001* 2. Supplement A to Schedule T [Document Identifier 455] *22292202145500001* 3. Medicare Part D Coverage Supplement [Document Identifier 365] *22292202136500001*

15 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY OVERFLOW PAGE FOR WRITE-INS

Additional Write-ins for Assets Line 25 Current Statement Date 4 1 2 3 December 31 Net Admitted Assets Prior Year Net Assets Nonadmitted Assets (Cols. 1 - 2) Admitted Assets 2504. Miscellaneous non-admitted assets 60,662,055 60,662,055 0 0 2597. Summary of remaining write-ins for Line 25 from overflow page 60,662,055 60,662,055 0 0

Additional Write-ins for Statement of Income Line 14 1 2 3 Current Prior Year Prior Year Ended Year to Date to Date December 31 1404. Prepayment Penalty on FHLB Loan 0 0 0 1497. Summary of remaining write-ins for Line 14 from overflow page 0 0 0

Additional Write-ins for Schedule T Line 58 1 Direct Premiums Written Direct Losses Paid (Deducting Salvage) Direct Losses Unpaid 2 3 4 5 6 7 Active Current Year Prior Year Current Year Prior Year Current Year Prior Year States, etc. Status To Date To Date To Date To Date To Date To Date 58004. ARE United Arab Emirates XXX 5,314 348 0 0 0 1,822 58005. ARG Argentina XXX 743 570 0 0 0 1,733 58006. AUS Australia XXX 3,031 1,125 0 0 0 10,618 58007. AUT Austria XXX 599 (193) 0 0 0 2,408 58008. BEL Belgium XXX 2,931 3,691 0 0 0 3,433 58009. BGD Bangladesh XXX 21 136 0 0 0 0 58010. BGR Bulgaria XXX 126 203 0 0 0 0 58011. BHR Bahrain XXX (579) 77 0 0 0 0 58012. BHS Bahamas XXX 2,889 2,889 0 0 0 2,437 58013. BLZ Belize XXX 0 77 0 0 0 408 58014. BMU Bermuda XXX (1,103) 4 0 0 0 0 58015. BRA Brazil XXX 3,891 4,044 0 0 0 4,262 58016. BDI Burundi XXX 12,348 0 0 0 0 0 58017. CHE Switzerland XXX 6,674 6,465 0 0 0 2,064 58018. CHL Chile XXX 888 6,554 0 0 0 1,579 58019. CHN China XXX 148,329 111,916 0 0 0 126,245 58020. COL Colombia XXX 5,134 3,905 0 0 0 2,593 58021. CRI Costa Rica XXX 2,354 7,889 0 0 0 4,166 58022. CYM Cayman Islands XXX 0 0 0 0 0 538 58023. CUW Curaçao XXX 0 84 0 0 0 0 58024. CZE Czech Republic XXX 1,273 (1,332) 0 0 0 835 58025. DEU Germany XXX 29,764 22,891 0 0 0 33,555 58026. DNK Denmark XXX 6,533 2,882 0 0 0 2,750 58027. DOM Dominican Republic XXX 5,189 6,101 0 0 0 3,644 58028. ECU Ecuador XXX 0 72 0 0 0 1,513 58029. EGY Egypt XXX 883 348 0 0 0 0 58030. ESP Spain XXX 3,956 3,159 0 0 0 9,033 58031. ETH Ethiopia XXX 0 0 0 0 0 358 58032. FIN Finland XXX 0 77 0 0 0 0 58033. FRA France XXX 18,507 10,100 0 0 0 23,535 58034. FSM Micronesia, Federated States of XXX 0 0 0 0 0 249 58035. GBR United Kingdom XXX 82,301 64,045 11,044 0 0 74,296 58036. GRC Greece XXX 174 (519) 0 0 0 740 58037. GTM Guatemala XXX 10 77 0 0 0 2,870 58038. HKG Hong Kong XXX 6,812 6,745 0 0 0 5,842 58039. HND Honduras XXX 0 0 0 0 0 249 58040. HUN Hungary XXX 0 0 0 0 0 450 58041. HRV Croatia XXX 0 72 0 0 0 0 58042. IRN Iran, Islamic Republic of XXX 115 0 0 0 0 0 58043. IDN Indonesia XXX 158 158 0 0 0 272 58044. IND India XXX 21,704 10,972 0 0 0 16,307 58045. IRL Ireland XXX 5,983 8,024 0 0 0 7,508 58046. ISR Israel XXX 7,535 7,389 0 0 0 2,853 58047. ITA Italy XXX 8,944 3,370 0 0 0 13,439 58048. JAM Jamaica XXX 55 2,926 0 0 0 291 58049. JOR Jordan XXX 153 153 0 0 0 0 58050. JPN Japan XXX 13,275 7,865 0 0 0 15,778 58051. KHM Cambodia XXX 172 215 0 0 0 423 58052. KOR Korea, Republic of XXX 898 4,901 0 0 0 7,043 58053. LBN Lebanon XXX 213 0 0 0 5,000 2,280 58054. LKA Sri Lanka XXX 103 64 0 0 0 0 58055. MEX Mexico XXX 77,783 77,741 0 0 97,867 40,174 58056. MHL Marshall Islands XXX 0 0 0 0 0 3,215 58057. MAR Morocco XXX 2,327 0 0 0 0 0 58058. KIR Kiribati XXX 953 0 0 0 0 0 58059. MYS Malaysia XXX 4,974 419 0 0 0 1,244 58060. EST Estonia XXX 2,559 0 0 0 0 0 58061. NIC Nicaragua XXX 146 0 0 0 0 1,716 58062. NLD Netherlands XXX 1,507 8,293 0 0 11 9,583 58063. NZL New Zealand XXX 428 204 0 0 0 0 58064. PAN Panama XXX 0 72 0 0 0 0 58065. PER Peru XXX 146 3,084 0 0 0 1,974 58066. PHL Philippines XXX 4,082 1,209 0 0 0 1,614 58067. POL Poland XXX 536 1,140 0 0 0 3,493 58068. PRT Portugal XXX 3,546 174 0 0 0 343 58069. Barbados XXX 2,500 0 0 0 0 0 58070. ROU Romania XXX 0 0 0 0 0 1,161 58071. RUS Russian Federation XXX 201 0 0 0 0 0 58072. United Arab Emirates XXX 0 0 0 0 0 0 58073. SAU Saudi Arabia XXX 155 1,363 0 0 0 243 58074. SGP Singapore XXX 912 (38) 0 0 0 3,934 58075. SLV El Salvador XXX 0 77 0 0 0 0

16 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY OVERFLOW PAGE FOR WRITE-INS Additional Write-ins for Schedule T Line 58 1 Direct Premiums Written Direct Losses Paid (Deducting Salvage) Direct Losses Unpaid 2 3 4 5 6 7 Active Current Year Prior Year Current Year Prior Year Current Year Prior Year States, etc. Status To Date To Date To Date To Date To Date To Date 58076. SVK Slovakia XXX 90 0 0 0 0 0 58077. SWE Sweden XXX 3,529 3,314 0 0 0 2,557 58078. TCA Turks and Caicos Islands XXX 264 264 0 0 0 0 58079. THA Thailand XXX 2,783 2,062 0 0 0 791 58080. TUR Turkey XXX 2,280 3,183 0 0 0 1,541 58081. TWN Taiwan, Province of China XXX 4,516 6,544 0 0 0 5,267 58082. TZA United Republic of Tanzania XXX 0 0 0 0 0 1,194 58083. UGA Uganda XXX 0 0 0 0 0 400 58084. VGB British Virgin Islands XXX 0 0 0 0 0 570 58085. VNM Viet Nam XXX 2,426 845 0 0 0 2,627 58086. ZAF South Africa XXX (56) 0 0 0 0 289 58087. ALB Albania XXX 0 1,500 0 0 0 0 58088. AND Andorra XXX 0 0 0 0 0 176 58089. ARM Armenia XXX (90) 0 0 0 0 0 58997. Summary of remaining write-ins for Line 58 from overflow page XXX 526,797 421,989 11,044 0 102,878 474,525

16.1 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE A - VERIFICATION Real Estate 1 2 Prior Year Ended Year to Date December 31 1. Book/adjusted carrying value, December 31 of prior year 44,788,154 42,511,216 2. Cost of acquired: 2.1 Actual cost at time of acquisition 0 0 2.2 Additional investment made after acquisition 239,428 7,137,258 3. Current year change in encumbrances 0 0 4. Total gain (loss) on disposals 0 0 5. Deduct amounts received on disposals 0 0 6. Total foreign exchange change in book/adjusted carrying value 0 0 7. Deduct current year’s other than temporary impairment recognized 0 0 8. Deduct current year’s depreciation 1,105,774 4,860,320 9. Book/adjusted carrying value at the end of current period (Lines 1+2+3+4-5+6-7-8) 43,921,808 44,788,154 10. Deduct total nonadmitted amounts 0 0 11. Statement value at end of current period (Line 9 minus Line 10) 43,921,808 44,788,154

SCHEDULE B - VERIFICATION Mortgage Loans 1 2 Prior Year Ended Year to Date December 31 1. Book value/recorded investment excluding accrued interest, December 31 of prior year 116,077,893 82,424,330 2. Cost of acquired: 2.1 Actual cost at time of acquisition 9,990,000 33,727,788 2.2 Additional investment made after acquisition 0 0 3. Capitalized deferred interest and other 0 0 4. Accrual of discount 2,625 14,693 5. Unrealized valuation increase (decrease) 0 0 6. Total gain (loss) on disposals 0 0 7. Deduct amounts received on disposals 37,066 88,480 8. Deduct amortization of premium and mortgage interest points and commitment fees 0 438 9. Total foreign exchange change in book value/recorded investment excluding accrued interest 0 0 10. Deduct current year’s other than temporary impairment recognized 0 0 11. Book value/recorded investment excluding accrued interest at end of current period (Lines 1+2+3+4+5+6-7-8+9-10) 126,033,452 116,077,893 12. Total valuation allowance 0 0 13. Subtotal (Line 11 plus Line 12) 126,033,452 116,077,893 14. Deduct total nonadmitted amounts 0 0 15. Statement value at end of current period (Line 13 minus Line 14) 126,033,452 116,077,893

SCHEDULE BA - VERIFICATION Other Long-Term Invested Assets 1 2 Prior Year Ended Year to Date December 31 1. Book/adjusted carrying value, December 31 of prior year 597,101,836 572,511,637 2. Cost of acquired: 2.1 Actual cost at time of acquisition 18,083,392 4,165,429 2.2 Additional investment made after acquisition 11,874,710 45,635,160 3. Capitalized deferred interest and other 0 0 4. Accrual of discount 0 0 5. Unrealized valuation increase (decrease) 4,256,027 (3,617,575) 6. Total gain (loss) on disposals 348 0 7. Deduct amounts received on disposals 46,614,066 20,261,771 8. Deduct amortization of premium and depreciation 135,466 144,047 9. Total foreign exchange change in book/adjusted carrying value 0 0 10. Deduct current year’s other than temporary impairment recognized 0 1,186,996 11. Book/adjusted carrying value at end of current period (Lines 1+2+3+4+5+6-7-8+9-10) 584,566,780 597,101,836 12. Deduct total nonadmitted amounts 0 0 13. Statement value at end of current period (Line 11 minus Line 12) 584,566,780 597,101,836

SCHEDULE D - VERIFICATION Bonds and Stocks 1 2 Prior Year Ended Year to Date December 31 1. Book/adjusted carrying value of bonds and stocks, December 31 of prior year 6,692,179,252 6,260,349,773 2. Cost of bonds and stocks acquired 529,615,429 1,582,164,205 3. Accrual of discount 1,147,200 5,325,848 4. Unrealized valuation increase (decrease) 82,375,247 39,359,062 5. Total gain (loss) on disposals 2,329,550 15,206,918 6. Deduct consideration for bonds and stocks disposed of 372,504,840 1,170,124,370 7. Deduct amortization of premium 1,756,322 9,479,786 8. Total foreign exchange change in book/adjusted carrying value 0 0 9. Deduct current year’s other than temporary impairment recognized 351,442 34,816,917 10. Total investment income recognized as a result of prepayment penalties and/or acceleration fees 841,224 4,194,520 11. Book/adjusted carrying value at end of current period (Lines 1+2+3+4+5-6-7+8-9+10) 6,933,875,297 6,692,179,252 12. Deduct total nonadmitted amounts 794,531 777,664 13. Statement value at end of current period (Line 11 minus Line 12) 6,933,080,766 6,691,401,588

SI01 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE D - PART 1B Showing the Acquisitions, Dispositions and Non-Trading Activity During the Current Quarter for all Bonds and Preferred Stock by NAIC Designation 1 2 3 4 5 6 7 8 Book/Adjusted Book/Adjusted Book/Adjusted Book/Adjusted Book/Adjusted Carrying Value Acquisitions Dispositions Non-Trading Activity Carrying Value Carrying Value Carrying Value Carrying Value Beginning During During During End of End of End of December 31 NAIC Designation of Current Quarter Current Quarter Current Quarter Current Quarter First Quarter Second Quarter Third Quarter Prior Year

BONDS

1. NAIC 1 (a) 3,175,558,239 311,173,680 259,596,894 (50,348,846) 3,176,786,180 0 0 3,175,558,239 2. NAIC 2 (a) 1,646,889,133 159,366,335 78,043,953 48,471,528 1,776,683,042 0 0 1,646,889,133 3. NAIC 3 (a) 129,010,086 20,177,301 8,502,882 240,788 140,925,293 0 0 129,010,086 4. NAIC 4 (a) 85,639,679 19,923,996 14,992,745 (3,072,326) 87,498,603 0 0 85,639,679 5. NAIC 5 (a) 5,407,283 0 2,128,542 1,546,706 4,825,448 0 0 5,407,283 6. NAIC 6 (a) 434,453 0 312,921 (118,800) 2,732 0 0 434,453 7. Total Bonds 5,042,938,873 510,641,312 363,577,938 (3,280,950) 5,186,721,297 0 0 5,042,938,873

SI02

PREFERRED STOCK

8. NAIC 1 0 0 0 0 0 0 0 0 9. NAIC 2 4,050,000 0 0 750,000 4,800,000 0 0 4,050,000 10. NAIC 3 0 0 0 0 0 0 0 0 11. NAIC 4 0 0 0 0 0 0 0 0 12. NAIC 5 0 0 0 0 0 0 0 0 13. NAIC 6 999,999 0 0 3,418,189 4,418,188 0 0 999,999 14. Total Preferred Stock 5,049,999 0 0 4,168,189 9,218,188 0 0 5,049,999 15. Total Bonds and Preferred Stock 5,047,988,872 510,641,312 363,577,938 887,239 5,195,939,485 0 0 5,047,988,872 (a) Book/Adjusted Carrying Value column for the end of the current reporting period includes the following amount of short-term and cash equivalent bonds by NAIC designation: NAIC 1 $ 502,711 ; NAIC 2 $ 835,919 ; NAIC 3 $ 0 NAIC 4 $ 0 ; NAIC 5 $ 0 ; NAIC 6 $ 0 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE DA - PART 1 Short-Term Investments 1 2 3 4 5 Paid for Book/Adjusted Interest Collected Accrued Interest Carrying Value Par Value Actual Cost Year-to-Date Year-to-Date

9199999 Totals 1,338,630 XXX 1,348,156 0 0

SCHEDULE DA - VERIFICATION Short-Term Investments 1 2

Prior Year Ended Year To Date December 31

1. Book/adjusted carrying value, December 31 of prior year 5,491,151 14,525,948

2. Cost of short-term investments acquired 0 8,029,434

3. Accrual of discount 6,505 24,695

4. Unrealized valuation increase (decrease) 0 0

5. Total gain (loss) on disposals 0 (21,916)

6. Deduct consideration received on disposals 4,150,000 16,873,806

7. Deduct amortization of premium 9,025 193,205

8. Total foreign exchange change in book/adjusted carrying value 0 0

9. Deduct current year’s other than temporary impairment recognized 0 0

10. Book/adjusted carrying value at end of current period (Lines 1+2+3+4+5-6-7+8-9) 1,338,630 5,491,151

11. Deduct total nonadmitted amounts 0 0

12. Statement value at end of current period (Line 10 minus Line 11) 1,338,630 5,491,151

SI03 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY

Schedule DB - Part A - Verification - Options, Caps, Floors, Collars, Swaps and Forwards N O N E

Schedule DB - Part B - Verification - Futures Contracts N O N E

Schedule DB - Part C - Section 1 - Replication (Synthetic Asset) Transactions (RSATs) Open N O N E

Schedule DB-Part C-Section 2-Reconciliation of Replication (Synthetic Asset) Transactions Open N O N E

Schedule DB - Verification - Book/Adjusted Carrying Value, Fair Value and Potential Exposure of Derivatives N O N E

SI04, SI05, SI06, SI07 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE E - PART 2 - VERIFICATION (Cash Equivalents) 1 2

Prior Year Ended Year To Date December 31

1. Book/adjusted carrying value, December 31 of prior year 538,574 71,454,605

2. Cost of cash equivalents acquired 5 1,077,357,987

3. Accrual of discount 0 36,461

4. Unrealized valuation increase (decrease) 0 0

5. Total gain (loss) on disposals 0 (1,898)

6. Deduct consideration received on disposals 450,000 1,148,303,000

7. Deduct amortization of premium 2,868 5,581

8. Total foreign exchange change in book/adjusted carrying value 0 0

9. Deduct current year’s other than temporary impairment recognized 0 0

10. Book/adjusted carrying value at end of current period (Lines 1+2+3+4+5-6-7+8-9) 85,711 538,574

11. Deduct total nonadmitted amounts 0 0

12. Statement value at end of current period (Line 10 minus Line 11) 85,711 538,574

SI08 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE A - PART 2 Showing All Real Estate ACQUIRED AND ADDITIONS MADE During the Current Quarter 1 4 5 6 7 8 9 Location 2 3 Additional Book/Adjusted Investment Date Actual Cost at Amount of Carrying Value Made After Description of Property City State Acquired Name of Vendor Time of Acquisition Encumbrances Less Encumbrances Acquisition 440 Lincoln Street Holding Company LLC Worcester MA 01/01/2015 0 0 0 239,428 0199999. Acquired by Purchase 0 0 0 239,428

0399999 - Totals 0 0 0 239,428

SCHEDULE A - PART 3 Showing All Real Estate DISPOSED During the Quarter, Including Payments During the Final Year on “Sales Under Contract” 1 Location 4 5 6 7 8 Change in Book/Adjusted Carrying Value Less Encumbrances 14 15 16 17 18 19 20 2 3 Expended 9 10 11 12 13

for Book/ Total Book/ Gross E01 Additions, Adjusted Total Foreign Adjusted Income Permanent Carrying Current Change in Exchange Carrying Foreign Earned Improve- Value Less Year’s Current Book/ Change in Value Less Exchange Realized Total Less Taxes, ments and Encum- Current Other-Than- Year's Adjusted Book/ Encum- Amounts Gain Gain Gain Interest Repairs Changes brances Year’s Temporary Change in Carrying Adjusted brances Received (Loss) (Loss) (Loss) Incurred on and Disposal Actual in Encum- Prior Depre- Impairment Encum- Value Carrying on During on on on Encum- Expenses Description of Property City State Date Name of Purchaser NONECost brances Year ciation Recognized brances (11-9-10) Value Disposal Year Disposal Disposal Disposal brances Incurred

0399999 - Totals STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE B - PART 2 Showing All Mortgage Loans ACQUIRED AND ADDITIONS MADE During the Current Quarter 1 Location 4 5 6 7 8 9 2 3 Additional Loan Actual Cost at Investment Made Value of Land Loan Number City State Type Date Acquired Rate of Interest Time of Acquisition After Acquisition and Buildings 703408 ALPHARETTA GA 02/23/2021 2.860 9,990,000 0 20,886,250 0599999. Mortgages in good standing - Commercial mortgages-all other 9,990,000 0 20,886,250 0899999. Total Mortgages in good standing 9,990,000 0 20,886,250 1699999. Total - Restructured Mortgages 0 0 0 2499999. Total - Mortgages with overdue interest over 90 days 0 0 0 3299999. Total - Mortgages in the process of foreclosure 0 0 0

3399999 - Totals 9,990,000 0 20,886,250

E02 SCHEDULE B - PART 3 Showing All Mortgage Loans DISPOSED, Transferred or Repaid During the Current Quarter 1 Location 4 5 6 7 Change in Book Value/Recorded Investment 14 15 16 17 18 2 3 Book Value/ 8 9 10 11 12 13 Book Value/ Recorded Current Recorded Investment Year’s Other- Total Investment Foreign Excluding Unrealized Current Than- Capitalized Change Total Foreign Excluding Exchange Realized Total Accrued Valuation Year’s Temporary Deferred in Exchange Accrued Gain Gain Gain Loan Date Disposal Interest Increase (Amortization) Impairment Interest and Book Value Change in Interest on Consid- (Loss) on (Loss) on (Loss) on Loan Number City State Type Acquired Date Prior Year (Decrease) /Accretion Recognized Other (8+9-10+11) Book Value Disposal eration Disposal Disposal Disposal 703124 NASHVILLE TN 11/14/2018 21,029 0 0 0 0 0 0 21,029 21,029 0 0 0 703340 Washington DC 12/03/2020 16,022 0 15 0 0 15 0 16,037 16,037 0 0 0 0299999. Mortgages with partial repayments 37,051 0 15 0 0 15 0 37,066 37,066 0 0 0

0599999 - Totals 37,051 0 15 0 0 15 0 37,066 37,066 0 0 0 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE BA - PART 2 Showing Other Long-Term Invested Assets ACQUIRED AND ADDITIONS MADE During the Current Quarter 1 2 Location 5 6 7 8 9 10 11 12 13 3 4 NAIC Designation, NAIC Designation Modifier and SVO Commitment Admini- Date Type Actual Cost Additional for CUSIP Name of Vendor strative Originally and at Time of Investment Made Amount of Additional Percentage of Identification Name or Description City State or General Partner Symbol Acquired Strategy Acquisition After Acquisition Encumbrances Investment Ownership 000000-00-0 City Square II Investment LLC WORCESTER MA City Square II Investment LLC 11/01/2010 0 38,309 0 0 100.000 2299999. Joint Venture Interests - Real Estate - Affiliated 0 38,309 0 0 XXX 000000-00-0 AEA Mezzanine Partners IV LP STAMFORD CT AEA Mezzanine Partners IV LP 07/23/2018 2 0 611,540 0 6,351,196 2.029 000000-00-0 AEA Mezzanine Partners LP STAMFORD CT AEA Mezzanine Partners LP 06/20/2014 2 0 11,186 0 323,522 1.217 000000-00-0 AEA Middle Market Debt Fnd III STAMFORD CT AEA Middle Market Debt Fnd III 12/14/2016 2 0 82,222 0 2,620,820 3.478 000000-00-0 AEA Middle Market Debt Fnd IV STAMFORD CT AEA Middle Market Debt Fnd IV 05/31/2019 2 0 298,333 0 3,309,695 2.198 000000-00-0 Barings Real Estate Credit Str HARTFORD CT Barings Real Estate Credit Str 03/30/2017 0 732,626 0 3,577,564 3.120 000000-00-0 Heartwood Partners III, LP NORWALK CT Heartwood Partners III, LP 05/30/2018 3 0 608,684 0 4,408,197 2.000 000000-00-0 Heartwood Partners II, LP NORWALK CT Heartwood Partners II, LP 12/31/2013 3 0 2,144 0 472,643 2.144 000000-00-0 Falcon Structured Equity Ptner BOSTON MA Falcon Structured Equity Ptner 05/06/2019 2 0 414,075 0 2,369,610 2.653 000000-00-0 GCG Investors IV, LP CHICAGO IL GCG Investors IV, LP 03/14/2017 2 0 154,625 0 894,628 2.909 000000-00-0 Graham Partners IV, LP NEWTOWN SQUARE PA Graham Partners IV, LP 06/20/2017 3 0 160,277 0 1,616,000 1.636 000000-00-0 Graycliff Mezzanine III, LP NEW YORK NY Graycliff Mezzanine III, LP 10/02/2018 2 0 469,255 0 3,775,187 8.341 000000-00-0 Harvest Partners SCF II, LP NEW YORK NY Harvest Partners SCF II, LP 06/28/2018 2 0 1,516,731 0 1,566,886 1.526 000000-00-0 Harvest Partners SCF, LP NEW YORK NY Harvest Partners SCF, LP 09/27/2016 2 0 447,617 0 771,693 2.659 000000-00-0 North Haven Credit Partners II NEW YORK NY North Haven Credit Partners II 12/22/2014 2 0 296,741 0 4,896,727 1.557 000000-00-0 New Canaan Funding Mezz VI, LP NEW CANAAN CT New Canaan Funding Mezz VI, LP 11/09/2015 2 0 86,348 0 741,976 11.789 000000-00-0 Newstone Capital Partners III DALLAS TX Newstone Capital Partners III 11/09/2016 2 0 170,565 0 706,746 1.460

E03 000000-00-0 PA Direct Credit Opport. II DARIEN CT PA Direct Credit Opport. II 03/27/2017 2 0 126,299 0 1,876,041 1.742 000000-00-0 Spire Capital Partners III LP NEW YORK NY Spire Capital Partners III LP 06/11/2015 3 0 88,544 0 1,163,073 2.145 000000-00-0 Falcon Private Credit Opp. VI BOSTON MA Falcon Private Credit Opp. VI 11/30/2019 2 0 3,615,145 0 4,882,381 0.909 000000-00-0 Siguler Guff Small Business II NEW YORK NY Siguler Guff Small Business II 10/31/2019 2 0 (200,000) 0 10,416,000 5.411 000000-00-0 North Haven Credit Prtners III NEW YORK NY North Haven Credit Prtners III 12/20/2019 2 0 362,733 0 15,730,407 2.205 000000-00-0 Newstone Capital Partners IV DALLAS TX Newstone Capital Partners IV 12/23/2019 2 0 1,168,310 0 7,519,387 1.408 000000-00-0 PENINSULA Fund VII LP DETROIT MI PENINSULA Fund VII LP 02/12/2020 2 0 208,828 0 6,987,172 2.198 000000-00-0 GCG INVESTORS V, LP CHICAGO IL GCG INVESTORS V, LP 10/01/2020 2 0 403,571 0 9,183,695 3.571 000000-00-0 Performance Direct Investments IV, LP Greenwich CT Performance Direct Investments IV, LP 03/09/2021 3 3,083,392 0 0 6,516,608 3.117 2599999. Joint Venture Interests - Other - Unaffiliated 3,083,392 11,836,401 0 102,677,854 XXX 000000-00-0 R4 LIHTC Housing XV, LP Atlanta US R4 LIHTC Housing XV, LP 02/25/2021 15,000,000 0 0 0 9.375 3799999. Non-Guaranteed Federal Low Income Housing Tax Credit - Unaffiliated 15,000,000 0 0 0 XXX 4899999. Total - Unaffiliated 18,083,392 11,836,401 0 102,677,854 XXX 4999999. Total - Affiliated 0 38,309 0 0 XXX 5099999 - Totals 18,083,392 11,874,710 0 102,677,854 XXX

SCHEDULE BA - PART 3 Showing Other Long-Term Invested Assets DISPOSED, Transferred or Repaid During the Current Quarter 1 2 Location 5 6 7 8 Change in Book/Adjusted Carrying Value 15 16 17 18 19 20 3 4 9 10 11 12 13 14 Book/ Current Book/ Adjusted Year’s Total Total Adjusted Carrying Current Other Change in Foreign Carrying Value Year’s Than Capital- Book/ Exchange Value Foreign Less Unrealized (Depre- Temporary ized Adjusted Change in Less Exchange Encum- Valuation ciation) or Impair- Deferred Carrying Book/ Encum- Gain Realized Total Date brances, Increase (Amorti- ment Interest Value Adjusted brances (Loss) Gain Gain Invest- CUSIP Name of Purchaser or Originally Disposal Prior (De- zation)/ Recog- and (9+10- Carrying on Consid- on (Loss) on (Loss) on ment Identification Name or Description City State Nature of Disposal Acquired Date Year crease) Accretion nized Other 11+12) Value Disposal eration Disposal Disposal Disposal Income 000000-00-0 AEA Mezzanine Partners IV LP STAMFORD CT Return of Capital 07/23/2018 02/23/2021 232,156 0 0 0 0 0 0 232,156 232,156 0 0 0 0 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE BA - PART 3 Showing Other Long-Term Invested Assets DISPOSED, Transferred or Repaid During the Current Quarter 1 2 Location 5 6 7 8 Change in Book/Adjusted Carrying Value 15 16 17 18 19 20 3 4 9 10 11 12 13 14 Book/ Current Book/ Adjusted Year’s Total Total Adjusted Carrying Current Other Change in Foreign Carrying Value Year’s Than Capital- Book/ Exchange Value Foreign Less Unrealized (Depre- Temporary ized Adjusted Change in Less Exchange Encum- Valuation ciation) or Impair- Deferred Carrying Book/ Encum- Gain Realized Total Date brances, Increase (Amorti- ment Interest Value Adjusted brances (Loss) Gain Gain Invest- CUSIP Name of Purchaser or Originally Disposal Prior (De- zation)/ Recog- and (9+10- Carrying on Consid- on (Loss) on (Loss) on ment Identification Name or Description City State Nature of Disposal Acquired Date Year crease) Accretion nized Other 11+12) Value Disposal eration Disposal Disposal Disposal Income 000000-00-0 AEA Mezzanine Partners LP STAMFORD CT Return of Capital 06/20/2014 03/12/2021 481,311 0 0 0 0 0 0 481,311 481,311 0 0 0 0 000000-00-0 AEA Middle Market Debt Fnd III STAMFORD CT Return of Capital 12/14/2016 01/26/2021 1,816,398 0 0 0 0 0 0 1,816,398 1,816,398 0 0 0 0 000000-00-0 AEA Middle Market Debt Fnd IV STAMFORD CT Return of Capital 05/31/2019 01/26/2021 668,785 0 0 0 0 0 0 668,785 668,785 0 0 0 0 000000-00-0 GCG Investors IV, LP CHICAGO IL Return of Capital 03/14/2017 02/01/2021 56,808 0 0 0 0 0 0 56,808 56,808 0 0 0 0 000000-00-0 Graycliff Mezzanine III, LP NEW YORK NY Return of Capital 10/02/2018 03/31/2021 815,607 0 0 0 0 0 0 815,607 815,607 0 0 0 0 000000-00-0 Ironwood Mezzanine Fund IV, LP AVON CT Return of Capital 06/12/2018 02/05/2021 384,514 0 0 0 0 0 0 384,514 384,514 0 0 0 0 000000-00-0 LBC Credit Partners III, LP PHILADELPHIA PA Return of Capital 11/21/2013 02/19/2021 206,162 0 0 0 0 0 0 206,162 206,162 0 0 0 0 000000-00-0 LBC Credit Partners IV, LP PHILADELPHIA PA Return of Capital 01/13/2017 02/19/2021 340,981 0 0 0 0 0 0 340,981 340,981 0 0 0 0 000000-00-0 North Haven Credit Partners II NEW YORK NY Return of Capital 12/22/2014 01/28/2021 909,255 0 0 0 0 0 0 909,255 909,255 0 0 0 0 000000-00-0 Newstone Capital Partners III DALLAS TX Return of Capital 11/09/2016 01/13/2021 204,283 0 0 0 0 0 0 204,283 204,283 0 0 0 0 000000-00-0 PA Direct Credit Opport. II DARIEN CT Return of Capital 03/27/2017 02/22/2021 561,270 0 0 0 0 0 0 561,270 561,270 0 0 0 0 000000-00-0 Peninsula Fund VI LP DETROIT MI Return of Capital 12/09/2015 02/25/2021 379,226 0 0 0 0 0 0 379,226 379,226 0 0 0 0 000000-00-0 TCW Direct Lending LLC LOS ANGELES CA Return of Capital 03/31/2015 02/24/2021 111,747 0 0 0 0 0 0 111,747 111,747 0 0 0 0 000000-00-0 Falcon Private Credit Opp. VI BOSTON MA Return of Capital 11/30/2019 03/05/2021 744,661 0 0 0 0 0 0 744,661 744,661 0 0 0 0 000000-00-0 North Haven Credit Prtners III NEW YORK NY Return of Capital 12/20/2019 02/25/2021 1,963,878 0 0 0 0 0 0 1,963,878 1,963,878 0 0 0 0 000000-00-0 Newstone Capital Partners IV DALLAS TX Return of Capital 12/23/2019 02/23/2021 649,268 0 0 0 0 0 0 649,268 649,268 0 0 0 0 000000-00-0 Spire Capital Parnerts IV,LP NEW YORK NY Return of Capital 08/01/2020 01/22/2021 20,588 0 0 0 0 0 0 20,588 20,588 0 0 0 0 000000-00-0 PA Direct Credit Opport. III DARIEN CT Return of Capital 10/01/2020 02/10/2021 197,646 0 0 0 0 0 0 197,646 197,646 0 0 0 0

E03.1 000000-00-0 Performance Direct Investments IV, LP Greenwich CT Return of Capital 03/09/2021 03/10/2021 0 0 0 0 0 0 0 306,180 306,180 0 0 0 0 2599999. Joint Venture Interests - Other - Unaffiliated 10,744,544 0 0 0 0 0 0 11,050,724 11,050,724 0 0 0 0 000000-00-0 10 & 120 South Riverside Plaza - MBS CHICAGO IL 10 & 120 South Riverside Plaza - MBS 01/23/2014 03/01/2021 13,434 0 0 0 0 0 0 13,434 13,434 0 0 0 0 000000-00-0 Birkdale Village - MBS HUNTERSVILLE NC Birkdale Village - MBS 03/27/2014 03/03/2021 48,115 0 0 0 0 0 0 48,114 48,115 0 0 0 0 000000-00-0 Benchmark 320 East 22nd Street - MBS NEW YORK NY Benchmark 320 East 22nd Street - MBS 10/09/2014 03/01/2021 36,789 0 0 0 0 0 0 36,789 36,789 0 0 0 0 000000-00-0 MF Houston Virage - MBS HOUSTON TX MF Houston Virage - MBS 12/16/2014 03/01/2021 46,280 0 0 0 0 0 0 46,280 46,280 0 0 0 0 000000-00-0 Utopia Center - MBS QUEENS NY Utopia Center - MBS 05/01/2015 03/01/2021 24,047 0 0 0 0 0 0 24,047 24,047 0 0 0 0 000000-00-0 Westin Bellevue Hotel - MBS BELLEVUE WA Westin Bellevue Hotel - MBS 06/18/2015 03/01/2021 47,179 0 0 0 0 0 0 47,179 47,179 0 0 0 0 000000-00-0 Mall at Bay Plaza - MBS BRONX NY Mall at Bay Plaza - MBS 08/31/2015 03/01/2021 45,741 0 0 0 0 0 0 45,741 45,741 0 0 0 0 000000-00-0 JW Marriott Miami - MBS MIAMI FL JW Marriott Miami - MBS 07/22/2015 03/01/2021 30,389 0 0 0 0 0 0 30,389 30,389 0 0 0 0 000000-00-0 Washington Square Mall - MBS PORTLAND OR Washington Square Mall - MBS 10/29/2015 03/01/2021 63,692 0 0 0 0 0 0 63,692 63,692 0 0 0 0 000000-00-0 Towers at Williams Square - MBS IRVING TX Towers at Williams Square - MBS 10/27/2015 03/01/2021 52,593 0 0 0 0 0 0 52,593 52,593 0 0 0 0 000000-00-0 Exeter Industrial Portfolio - MBS PLYMOUTH MEETING PA Exeter Industrial Portfolio - MBS 12/17/2015 01/01/2021 15,000,000 0 0 0 0 0 0 15,000,000 15,000,000 0 0 0 0 000000-00-0 Grand Bohemian - MBS ORLANDO FL Grand Bohemian - MBS 02/26/2016 03/01/2021 43,499 0 0 0 0 0 0 43,499 43,499 0 0 0 0 000000-00-0 Hyatt Regency Boston - MBS BOSTON MA Hyatt Regency Boston - MBS 06/23/2016 03/01/2021 48,629 0 0 0 0 0 0 48,629 48,976 0 348 348 0 000000-00-0 Sherry Lane Place - MBS DALLAS TX Sherry Lane Place - MBS 04/05/2016 01/27/2021 10,000,000 0 0 0 0 0 0 10,000,000 10,000,000 0 0 0 0 000000-00-0 Integra Cove Apartments - MBS ORLANDO FL Integra Cove Apartments - MBS 06/23/2016 02/01/2021 10,000,000 0 0 0 0 0 0 10,000,000 10,000,000 0 0 0 0 000000-00-0 Ardmore Kings Grant - MBS CONCORD NC Ardmore Kings Grant - MBS 07/07/2016 03/01/2021 22,167 0 0 0 0 0 0 22,167 22,167 0 0 0 0 000000-00-0 Hotel Van Zandt - MBS AUSTIN TX Hotel Van Zandt - MBS 10/05/2017 03/01/2021 40,441 0 0 0 0 0 0 40,441 40,441 0 0 0 0 2999999. Collateral Loans - Unaffiliated 35,562,994 0 0 0 0 0 0 35,562,993 35,563,342 0 348 348 0 4899999. Total - Unaffiliated 46,307,539 0 0 0 0 0 0 46,613,718 46,614,066 0 348 348 0 4999999. Total - Affiliated 0 0 0 0 0 0 0 0 0 0 0 0 0 5099999 - Totals 46,307,539 0 0 0 0 0 0 46,613,718 46,614,066 0 348 348 0 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE D - PART 3 Show All Long-Term Bonds and Stock Acquired During the Current Quarter 1 2 3 4 5 6 7 8 9 10 NAIC Designation, NAIC Designation Modifier and SVO Number of Paid for Accrued Admini- CUSIP Date Shares of Interest and strative Identification Description Foreign Acquired Name of Vendor Stock Actual Cost Par Value Dividends Symbol 91282C-AV-3 UNITED STATES TREASURY 01/21/2021 B.A. Securities Inc. 783,063 800,000 1,315 1.A 91282C-BL-4 UNITED STATES TREASURY 03/22/2021 Various 3,001,707 3,100,000 1,883 1.A 0599999. Subtotal - Bonds - U.S. Governments 3,784,770 3,900,000 3,198 XXX 592112-UH-7 METROPOLITAN GOVT NASHVILLE & DAVIDSON C 01/27/2021 Piper Jaffrey 500,000 500,000 0 1.C FE 2499999. Subtotal - Bonds - U.S. Political Subdivisions of States, Territories and Possessions 500,000 500,000 0 XXX 30300Y-AU-3 FREMF 2017-K67 C - CMBS 03/22/2021 PPM 2,242,078 2,100,000 5,292 1.A 3130AK-V5-2 FEDERAL HOME LOAN BANKS 01/22/2021 STC 8,000,000 8,000,000 0 1.A 3132DM-SK-2 FH SD0522 - RMBS 02/03/2021 BARCLAYS CAPITAL INC 1,036,575 974,311 812 1.A 3133KL-H2-6 FH RA4749 - RMBS 02/25/2021 CMG 16,495,208 15,978,407 11,096 1.A 3133L8-B6-1 FH RC1861 - RMBS 03/19/2021 PPM 2,145,033 2,088,894 2,089 1.A 3136A4-HQ-5 FNR 2012-20 QZ - CMO/RMBS 03/01/2021 Direct 8,436 8,436 0 1.A 3137F9-GM-7 FHR 5074 KP - CMO/RMBS 01/11/2021 INL 8,283,125 8,000,000 12,444 1.A 3137FY-TN-6 FHR 5096 C - CMO/RMBS 03/24/2021 INL 7,882,813 8,000,000 10,000 1.A 3140J7-XA-8 FN BM3372 - CMBS/RMBS 02/08/2021 BMO Capital Markets 9,523,291 8,917,453 11,882 1.A 3140KP-7J-6 FN BQ4496 - RMBS 02/17/2021 BARCLAYS CAPITAL INC 16,296,819 15,958,939 8,866 1.A 3140KV-XP-0 FN BQ9685 - RMBS 02/17/2021 WFM 11,519,734 11,278,308 6,266 1.A 3140KV-XR-6 FN BQ9687 - RMBS 02/17/2021 WFM 25,990,913 25,314,556 14,064 1.A 3140L0-D8-7 FN BR1926 - RMBS 01/08/2021 PPM 11,891,719 11,500,000 8,306 1.A

E04 3140L1-DM-4 FN BR2807 - RMBS 01/20/2021 PPM 2,101,674 1,991,813 1,383 1.A 3140QF-NV-7 FN CA7603 - RMBS 02/12/2021 CMG 779,903 740,561 514 1.A 3140QG-5K-9 FN CA8949 - RMBS 03/30/2021 BARCLAYS CAPITAL INC 12,335,331 11,950,669 10,789 1.A 3140QG-UM-7 FN CA8687 - RMBS 03/04/2021 CMG 7,955,114 7,915,536 4,398 1.A 3140X9-6W-0 FN FM6284 - RMBS 03/11/2021 Morgan Stanley 1,028,722 994,235 608 1.A 3140XA-GK-2 FN FM6501 - RMBS 03/18/2021 CMG 8,232,500 8,000,000 7,222 1.A 31418D-YC-0 FN MA4306 - RMBS 03/12/2021 BARCLAYS CAPITAL INC 8,243,750 8,000,000 7,222 1.A 54651R-CX-5 LOUISIANA ST UNCLAIMED PPTY SPL REV 03/18/2021 RBC CAPITAL MARKETS 470,435 500,000 495 1.E FE 54651R-DL-0 LOUISIANA ST UNCLAIMED PPTY SPL REV 03/18/2021 RBC CAPITAL MARKETS 1,223,131 1,300,000 1,286 1.E FE 60416Q-JA-3 MINNESOTA ST HSG FIN AGY HOMEOWNERSHIP F 02/11/2021 RBC CAPITAL MARKETS 2,307,541 2,307,541 0 1.A FE 759136-VH-4 REGIONAL TRANSN DIST COLO SALES TAX REV 03/10/2021 GOLDMAN 3,569,648 3,600,000 87 1.C FE 810489-WK-6 SCOTTSDALE ARIZ MUN PPTY CORP EXCISE TAX 01/22/2021 WELLS FARGO SECURITIES LLC 1,250,000 1,250,000 0 1.B FE 810489-WL-4 SCOTTSDALE ARIZ MUN PPTY CORP EXCISE TAX 01/22/2021 WELLS FARGO SECURITIES LLC 2,415,000 2,415,000 0 1.B FE 91412H-KD-4 UNIVERSITY CALIF REVS 02/24/2021 Jefferies 500,000 500,000 0 1.C FE 3199999. Subtotal - Bonds - U.S. Special Revenues 173,728,494 169,584,658 125,120 XXX 00081T-AK-4 ACCO BRANDS CORP 03/02/2021 SALOMON BROTHERS INC 1,380,750 1,400,000 0 3.C FE 00164V-AF-0 AMC NETWORKS INC 01/25/2021 Various 1,080,900 1,080,000 0 3.C FE 00206R-KA-9 AT&T INC 01/07/2021 FIRST BOSTON 250,445 250,000 1,014 2.B FE 00206R-KE-1 AT&T INC 02/04/2021 JP Morgan Securities LLC 991,652 1,050,000 674 2.B FE 00206R-MJ-8 AT&T INC 03/19/2021 SALOMON BROTHERS INC 899,145 900,000 0 2.B FE 00507V-AP-4 ACTIVISION BLIZZARD INC 01/26/2021 RBC CAPITAL MARKETS 2,325,000 2,400,000 15,120 2.A FE 00846U-AN-1 AGILENT TECHNOLOGIES INC 03/16/2021 Various 4,361,708 4,400,000 767 2.A FE 013822-AG-6 ALCOA NEDERLAND HOLDING BV C 03/09/2021 Various 719,550 720,000 0 3.A FE 01400E-AB-9 ALCON FINANCE CORP 03/18/2021 B.A. Securities Inc. 1,664,208 1,600,000 23,867 2.B FE 02528B-AA-2 ACAR 211 A - ABS 01/19/2021 Deutsche Bank Securities, Inc. 349,984 350,000 0 1.A FE 02665W-DW-8 AMERICAN HONDA FINANCE CORP 03/24/2021 Various 4,005,096 4,000,000 267 1.G FE 03073E-AT-2 AMERISOURCEBERGEN CORP 03/25/2021 JP Morgan Securities LLC 6,386,752 6,400,000 0 1.G FE 031162-CW-8 AMGEN INC 01/21/2021 STC 2,501,736 2,400,000 39,713 2.A FE 03674X-AQ-9 ANTERO RESOURCES CORP 01/11/2021 JP Morgan Securities LLC 360,000 360,000 0 4.B FE 03969Y-AA-6 ARDAGH METAL PACKAGING FINANCE USA LLC C 03/19/2021 STC 1,375,500 1,400,000 1,390 3.B FE 052528-AL-0 AUSTRALIA AND NEW ZEALAND BANKING GROUP C 03/12/2021 Deutsche Bank Securities, Inc. 1,655,088 1,600,000 7,080 2.A FE 053332-BA-9 AUTOZONE INC 03/15/2021 MITSUBISHI UFJ SECURITIES 1,479,600 1,600,000 4,547 2.B FE 05583J-AJ-1 BPCE SA C 01/12/2021 SALOMON BROTHERS INC 4,000,000 4,000,000 0 1.G FE 05605H-AC-4 BWX TECHNOLOGIES INC 03/29/2021 MORGAN STANLEY CO 360,000 360,000 0 3.C FE 06541A-BB-5 BANK 2021-BNK31 - CMBS 01/28/2021 WFM 8,079,392 8,000,000 3,936 1.A FE 06542B-BC-0 BANK 2021-BNK32 A4 - CMBS 03/16/2021 MORGAN STANLEY CO 8,079,374 8,000,000 12,006 1.A FE 06650A-AD-9 BANK 2017-BNK8 A3 - CMBS 01/19/2021 WFM 3,456,020 3,125,000 5,606 1.D FM 071734-AL-1 BAUSCH HEALTH COMPANIES INC C 03/29/2021 SALOMON BROTHERS INC 595,500 600,000 10,325 4.B FE STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE D - PART 3 Show All Long-Term Bonds and Stock Acquired During the Current Quarter 1 2 3 4 5 6 7 8 9 10 NAIC Designation, NAIC Designation Modifier and SVO Number of Paid for Accrued Admini- CUSIP Date Shares of Interest and strative Identification Description Foreign Acquired Name of Vendor Stock Actual Cost Par Value Dividends Symbol 072863-AH-6 BAYLOR SCOTT & WHITE HOLDINGS 01/14/2021 JP Morgan Securities LLC 955,000 955,000 0 1.D FE 075887-CL-1 BECTON DICKINSON AND CO 02/08/2021 MORGAN STANLEY CO 1,600,000 1,600,000 0 2.C FE 08162R-AC-1 BENCHMARK 2021-B23 MORTGAGE TRUST - CMBS 01/29/2021 SALOMON BROTHERS INC 8,079,606 8,000,000 6,887 1.A FE 08162R-AD-9 BMARK 2021-B23 A5 - CMBS 03/17/2021 JP Morgan Securities LLC 3,580,137 3,650,000 3,778 1.A FE 08163A-AE-3 BMARK 2020-B18 A5 - CMBS 03/25/2021 Deutsche Bank Securities, Inc. 7,801,563 8,000,000 11,978 1.D FM 097023-DG-7 BOEING CO 02/02/2021 B.A. Securities Inc. 1,050,000 1,050,000 0 2.C FE 125523-CM-0 CIGNA CORP 03/01/2021 SALOMON BROTHERS INC 1,598,144 1,600,000 0 2.B FE 12685J-AC-9 CABLE ONE INC 03/17/2021 B.A. Securities Inc. 633,600 640,000 9,244 4.B FE 141781-BQ-6 CARGILL INC 01/28/2021 SALOMON BROTHERS INC 2,468,864 2,470,000 0 1.F FE 14879E-AH-1 CATALENT PHARMA SOLUTIONS INC 03/10/2021 Various 1,613,000 1,640,000 1,875 3.C FE 159864-AG-2 CHARLES RIVER LABORATORIES INTERNATIONAL 03/08/2021 JP Morgan Securities LLC 160,000 160,000 0 3.B FE 159864-AJ-6 CHARLES RIVER LABORATORIES INTERNATIONAL 03/08/2021 JP Morgan Securities LLC 200,000 200,000 0 3.B FE 161175-BZ-6 CHARTER COMMUNICATIONS OPERATING LLC 02/18/2021 MORGAN STANLEY CO 248,860 250,000 0 2.C FE 16411Q-AH-4 CHENIERE ENERGY PARTNERS LP 02/25/2021 JP Morgan Securities LLC 800,000 800,000 0 3.B FE 174610-AV-7 CITIZENS FINANCIAL GROUP INC 02/03/2021 B.A. Securities Inc. 2,470,752 2,400,000 21,983 2.B FE 185899-AK-7 CLEVELAND-CLIFFS INC 02/09/2021 Various 1,122,188 1,125,000 0 4.C FE 20030N-DM-0 COMCAST CORP 02/25/2021 MITSUBISHI UFJ SECURITIES 3,891,480 4,000,000 9,967 1.G FE 202712-BN-4 COMMONWEALTH BANK OF AUSTRALIA C 03/04/2021 Various 5,315,930 5,350,000 0 2.A FE

E04.1 233851-ED-2 DAIMLER FINANCE NORTH AMERICA LLC 02/25/2021 B.A. Securities Inc. 4,003,688 4,000,000 0 2.A FE 23802W-AA-9 COLO 211 A2 - ABS 02/24/2021 Deutsche Bank Securities, Inc. 2,959,830 2,960,000 0 1.G FE 263534-CP-2 E I DU PONT DE NEMOURS AND CO 03/25/2021 RBC CAPITAL MARKETS 2,414,856 2,400,000 11,347 1.G FE 26442C-BB-9 DUKE ENERGY CAROLINAS LLC 03/29/2021 MORGAN STANLEY CO 594,316 595,000 0 1.F FE 26444H-AJ-0 DUKE ENERGY FLORIDA LLC 03/30/2021 Jefferies 2,269,128 2,400,000 12,367 1.F FE 267475-AD-3 DYCOM INDUSTRIES INC 03/30/2021 Various 1,510,000 1,510,000 0 3.C FE 285512-AE-9 ELECTRONIC ARTS INC 03/18/2021 Various 4,535,565 4,760,000 8,428 2.A FE 29717P-AX-5 ESSEX PORTFOLIO LP 02/23/2021 PPS 649,643 750,000 9,993 2.A FE 30212P-BF-1 EXPEDIA GROUP INC 02/16/2021 JP Morgan Securities LLC 792,648 800,000 0 2.C FE 30251G-BC-0 FMG RESOURCES (AUGUST 2006) PTY LTD C 03/18/2021 JP Morgan Securities LLC 400,000 400,000 0 3.A FE 31620M-BS-4 FIDELITY NATIONAL INFORMATION SERVICES I 02/23/2021 JP Morgan Securities LLC 795,384 800,000 0 2.B FE 343498-AC-5 FLOWERS FOODS INC 03/04/2021 Various 3,970,944 4,000,000 0 2.B FE 34959E-AB-5 FORTINET INC 02/24/2021 B.A. Securities Inc. 1,594,560 1,600,000 0 2.A FE 354613-AL-5 FRANKLIN RESOURCES INC 01/12/2021 RBC CAPITAL MARKETS 2,341,800 2,400,000 9,067 1.F FE 35805B-AB-4 FRESENIUS MEDICAL CARE US FINANCE III IN 02/11/2021 FIRST BOSTON 2,387,496 2,400,000 0 2.C FE 361448-BG-7 GATX CORP 02/16/2021 Various 4,975,912 5,050,000 1,267 2.B FE 38141G-XR-0 GOLDMAN SACHS GROUP INC 01/20/2021 GOLDMAN 4,007,530 4,000,000 0 1.G FE 382550-BJ-9 GOODYEAR TIRE & RUBBER CO 03/31/2021 SALOMON BROTHERS INC 1,600,000 1,600,000 0 4.A FE 421946-AM-6 HEALTHCARE REALTY TRUST INC 01/12/2021 WELLS FARGO SECURITIES LLC 2,375,112 2,400,000 13,940 2.B FE 44891A-BT-3 HYUNDAI CAPITAL AMERICA 01/05/2021 SALOMON BROTHERS INC 3,995,800 4,000,000 0 2.A FE 451102-CA-3 ICAHN ENTERPRISES LP 01/12/2021 Various 921,800 920,000 0 3.C FE 456837-AV-5 ING GROEP NV C 03/25/2021 Various 4,004,416 4,000,000 0 1.G FE 456837-AW-3 ING GROEP NV C 03/25/2021 GOLDMAN 4,017,280 4,000,000 0 1.G FE 46647P-BX-3 JPMORGAN CHASE & CO 01/28/2021 JP Morgan Securities LLC 1,600,000 1,600,000 0 1.G FE 49271V-AN-0 KEURIG DR PEPPER INC 03/01/2021 JP Morgan Securities LLC 1,595,024 1,600,000 0 2.B FE 501044-DQ-1 KROGER CO 01/06/2021 Various 1,971,728 1,980,000 0 2.B FE 50220P-AC-7 LSEGA FINANCING PLC C 03/25/2021 SALOMON BROTHERS INC 3,996,360 4,000,000 0 1.D FE 50220P-AD-5 LSEGA FINANCING PLC C 03/26/2021 Various 5,980,125 6,000,000 0 1.D FE 50220P-AE-3 LSEGA FINANCING PLC C 03/25/2021 B.A. Securities Inc. 497,510 500,000 0 1.D FE 502431-AF-6 L3HARRIS TECHNOLOGIES INC 03/18/2021 BARCLAYS CAPITAL INC 2,500,944 2,400,000 18,753 2.B FE 513075-BR-1 LAMAR MEDIA CORP 01/28/2021 GOLDMAN 1,522,500 1,500,000 2,500 4.A FE 527298-BT-9 LEVEL 3 FINANCING INC 01/12/2021 Various 900,900 900,000 75 3.B FE 52736R-BJ-0 LEVI STRAUSS & CO 02/02/2021 B.A. Securities Inc. 80,000 80,000 0 3.B FE 546347-AM-7 LOUISIANA-PACIFIC CORP 03/23/2021 Various 2,578,400 2,600,000 1,523 3.B FE 548661-DX-2 LOWE'S COMPANIES INC 03/12/2021 US BANCORP INVESTMENTS INC. 2,624,023 2,750,000 14,300 2.A FE 548661-DY-0 LOWE'S COMPANIES INC 02/16/2021 GOLDMAN 1,561,328 1,600,000 8,764 2.A FE 574599-BQ-8 MASCO CORP 02/18/2021 Deutsche Bank Securities, Inc. 2,384,188 2,400,000 0 2.B FE 574599-BR-6 MASCO CORP 02/18/2021 RBC CAPITAL MARKETS 499,910 500,000 0 2.B FE 577081-BE-1 MATTEL INC 03/09/2021 B.A. Securities Inc. 70,000 70,000 0 3.B FE STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE D - PART 3 Show All Long-Term Bonds and Stock Acquired During the Current Quarter 1 2 3 4 5 6 7 8 9 10 NAIC Designation, NAIC Designation Modifier and SVO Number of Paid for Accrued Admini- CUSIP Date Shares of Interest and strative Identification Description Foreign Acquired Name of Vendor Stock Actual Cost Par Value Dividends Symbol 579780-AS-6 MCCORMICK & COMPANY INC 02/08/2021 B.A. Securities Inc. 2,381,088 2,400,000 0 2.B FE 588056-BA-8 MERCER INTERNATIONAL INC C 01/14/2021 FIRST BOSTON 360,000 360,000 0 4.A FE 609207-AT-2 MONDELEZ INTERNATIONAL INC 03/17/2021 Various 4,940,573 4,828,000 57,534 2.B FE 609207-AY-1 MONDELEZ INTERNATIONAL INC 01/12/2021 BARCLAYS CAPITAL INC 2,951,319 2,975,000 13,790 2.B FE 617446-8X-0 MORGAN STANLEY 01/21/2021 Various 3,992,043 4,000,000 0 1.F FE 626717-AM-4 MURPHY OIL CORP 03/23/2021 MORGAN STANLEY CO 698,400 720,000 13,395 3.C FE 626717-AN-2 MURPHY OIL CORP 03/23/2021 B.A. Securities Inc. 1,368,500 1,400,000 4,958 3.B FE 62886E-BA-5 NCR CORP 03/22/2021 B.A. Securities Inc. 360,000 360,000 0 4.A FE 629377-CQ-3 NRG ENERGY INC 02/19/2021 JHY 808,000 800,000 6,075 3.B FE 63111X-AB-7 NASDAQ INC 02/19/2021 THE SEAPORT GROUP 503,620 500,000 5,191 2.B FE 63111X-AD-3 NASDAQ INC 01/22/2021 Various 5,451,784 5,600,000 6,417 2.B FE 632525-AU-5 NATIONAL AUSTRALIA BANK LTD C 01/26/2021 Various 4,843,904 4,800,000 47,158 2.A FE 63938C-AL-2 NAVIENT CORPORATION 01/28/2021 JP Morgan Securities LLC 2,399,808 2,400,000 0 4.A FE 65339K-BR-0 NEXTERA ENERGY CAPITAL HOLDINGS INC 01/20/2021 SALOMON BROTHERS INC 4,144,800 4,000,000 12,750 2.A FE 665859-AV-6 NORTHERN TRUST CORP 03/18/2021 B.A. Securities Inc. 972,750 1,000,000 7,638 1.E FE 69007T-AE-4 OUTFRONT MEDIA CAPITAL LLC 01/21/2021 SALOMON BROTHERS INC 1,802,250 1,800,000 765 4.A FE 71427Q-AA-6 PERNOD RICARD INTERNATIONAL FINANCE LLC 03/12/2021 Various 3,862,711 4,063,000 23,000 2.A FE 720186-AN-5 PIEDMONT NATURAL GAS COMPANY INC 03/08/2021 MIZUHO SECURITIES USA/FIXED INCOME 797,048 800,000 0 2.A FE

E04.2 72147K-AF-5 PILGRIMS PRIDE CORP 03/25/2021 BARCLAYS CAPITAL INC 1,633,401 1,650,000 0 3.A FE 723787-AR-8 PIONEER NATURAL RESOURCES CO 01/20/2021 Various 4,000,272 4,000,000 0 2.B FE 737446-AR-5 POST HOLDINGS INC 02/24/2021 GOLDMAN 800,000 800,000 0 4.B FE 74112B-AM-7 PRESTIGE BRANDS INC 03/05/2021 Various 1,586,000 1,600,000 667 4.B FE 75281A-BH-1 RANGE RESOURCES CORP 01/05/2021 B.A. Securities Inc. 80,000 80,000 0 4.B FE 754730-AH-2 RAYMOND JAMES FINANCIAL INC 03/18/2021 SALOMON BROTHERS INC 824,962 830,000 0 2.A FE 76117W-AC-3 RESOLUTE FOREST PRODUCTS INC C 01/27/2021 SALOMON BROTHERS INC 1,440,000 1,440,000 0 4.B FE 778296-AG-8 ROSS STORES INC 01/15/2021 RBC CAPITAL MARKETS 1,592,288 1,600,000 7,417 2.A FE 78410G-AE-4 SBA COMMUNICATIONS CORP 03/17/2021 Various 1,565,900 1,600,000 3,038 4.A FE 78486Q-AF-8 SVB FINANCIAL GROUP 01/27/2021 Various 5,588,951 5,600,000 0 2.B FE 80281L-AP-0 SANTANDER UK GROUP HOLDINGS PLC C 03/08/2021 JP Morgan Securities LLC 5,600,000 5,600,000 0 2.A FE 808513-BP-9 CHARLES SCHWAB CORP 03/18/2021 Various 3,995,528 4,000,000 356 1.F FE 817826-AD-2 7-ELEVEN INC 01/27/2021 FIRST BOSTON 2,392,488 2,400,000 0 1.D FE 817826-AE-0 7-ELEVEN INC 01/27/2021 FIRST BOSTON 3,997,800 4,000,000 0 1.D FE 84762L-AX-3 SPECTRUM BRANDS INC 02/19/2021 SALOMON BROTHERS INC 802,000 800,000 0 4.B FE 85236K-AE-2 SIDC 211 A2 - ABS 03/12/2021 Deutsche Bank Securities, Inc. 1,200,000 1,200,000 0 1.G FE 857477-BP-7 STATE STREET CORP 02/26/2021 B.A. Securities Inc. 3,988,240 4,000,000 0 1.G FE 85917P-AA-5 STERIS IRISH FINCO UNLIMITED CO C 03/24/2021 JP Morgan Securities LLC 3,995,880 4,000,000 0 2.B FE 86562M-CE-8 SUMITOMO MITSUI FINANCIAL GROUP INC C 01/05/2021 GOLDMAN 1,604,688 1,600,000 0 1.G FE 87264A-BH-7 T-MOBILE USA INC 01/21/2021 GOLDMAN 2,464,968 2,400,000 28,837 2.C FE 87264A-BV-6 T-MOBILE USA INC 03/17/2021 JP Morgan Securities LLC 718,200 720,000 0 3.B FE 875127-BH-4 TAMPA ELECTRIC CO 03/17/2021 Various 5,584,261 5,600,000 119 1.G FE 879360-AD-7 TELEDYNE TECHNOLOGIES INC 03/08/2021 B.A. Securities Inc. 5,587,344 5,600,000 0 2.C FE 892331-AN-9 TOYOTA MOTOR CORP C 03/18/2021 JP Morgan Securities LLC 5,600,000 5,600,000 0 1.E FE 893647-BM-8 TRANSDIGM INC 01/14/2021 GOLDMAN 400,000 400,000 0 4.C FE 902613-AE-8 UBS GROUP AG C 02/03/2021 MITSUBISHI UFJ SECURITIES 4,016,200 4,000,000 0 1.G FE 90265E-AT-7 UDR INC 02/11/2021 WELLS FARGO SECURITIES LLC 2,385,936 2,400,000 2,100 2.A FE 92343V-GF-5 VERIZON COMMUNICATIONS INC 03/11/2021 SALOMON BROTHERS INC 999,940 1,000,000 0 2.A FE 92343V-GH-1 VERIZON COMMUNICATIONS INC 03/12/2021 Various 4,006,624 4,000,000 0 2.A FE 928377-AC-4 VISTA OUTDOOR INC 03/24/2021 MORGAN STANLEY CO 1,706,250 1,720,000 2,875 4.B FE 928881-AC-5 VONTIER CORP 03/04/2021 Various 4,786,144 4,800,000 0 2.C FE 92939U-AE-6 WEC ENERGY GROUP INC 01/21/2021 Various 2,387,704 2,400,000 12,480 2.A FE 959802-BA-6 WESTERN UNION CO 02/23/2021 SALOMON BROTHERS INC 11,989,560 12,000,000 0 2.B FE 961214-EM-1 WESTPAC BANKING CORP C 03/17/2021 Deutsche Bank Securities, Inc. 1,652,752 1,600,000 5,788 2.A FE 988498-AN-1 YUM! BRANDS INC 02/17/2021 BARCLAYS CAPITAL INC 788,000 800,000 11,600 4.A FE 988498-AP-6 YUM! BRANDS INC 03/16/2021 SALOMON BROTHERS INC 800,000 800,000 0 3.C FE 3899999. Subtotal - Bonds - Industrial and Miscellaneous (Unaffiliated) 332,628,048 333,556,000 578,291 XXX 8399997. Total - Bonds - Part 3 510,641,312 507,540,658 706,610 XXX STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE D - PART 3 Show All Long-Term Bonds and Stock Acquired During the Current Quarter 1 2 3 4 5 6 7 8 9 10 NAIC Designation, NAIC Designation Modifier and SVO Number of Paid for Accrued Admini- CUSIP Date Shares of Interest and strative Identification Description Foreign Acquired Name of Vendor Stock Actual Cost Par Value Dividends Symbol 8399998. Total - Bonds - Part 5 XXX XXX XXX XXX 8399999. Total - Bonds 510,641,312 507,540,658 706,610 XXX 8999997. Total - Preferred Stocks - Part 3 0 XXX 0 XXX 8999998. Total - Preferred Stocks - Part 5 XXX XXX XXX XXX 8999999. Total - Preferred Stocks 0 XXX 0 XXX 049560-10-5 ATMOS ENERGY ORD 01/14/2021 Fidelity Capital Markets 2,000.000 176,020 0 053015-10-3 AUTOMATIC DATA PROCESSING ORD 01/25/2021 Fidelity Capital Markets 4,800.000 776,770 0 060505-10-4 BANK OF AMERICA ORD 03/02/2021 Fidelity Capital Markets 71,720.000 2,396,668 0 064058-10-0 BANK OF NEW YORK MELLON ORD 03/04/2021 Fidelity Capital Markets 19,800.000 869,221 0 09247X-10-1 BLACKROCK ORD 03/08/2021 Fidelity Capital Markets 1,532.000 1,087,901 0 125896-10-0 CMS ENERGY ORD 03/26/2021 Fidelity Capital Markets 26,800.000 1,591,830 0 174610-10-5 CITIZENS FINANCIAL GROUP ORD 01/21/2021 Fidelity Capital Markets 10,080.000 400,756 0 29364G-10-3 ENTERGY ORD 01/14/2021 Fidelity Capital Markets 4,240.000 396,347 0 316773-10-0 FIFTH THIRD BANCORP ORD 01/29/2021 Fidelity Capital Markets 6,880.000 198,270 0 446150-10-4 HUNTINGTON BANCSHARES ORD 03/23/2021 Fidelity Capital Markets 83,680.000 1,263,470 0 459506-10-1 INTERNATIONAL FLAVORS & FRAGRANS ORD 01/05/2021 Fidelity Capital Markets 3,680.000 398,292 0 493267-10-8 KEYCORP ORD 02/26/2021 Fidelity Capital Markets 105,640.000 2,043,573 0

E04.3 494368-10-3 KIMBERLY CLARK ORD 01/20/2021 Fidelity Capital Markets 1,600.000 209,605 0 539830-10-9 LOCKHEED MARTIN ORD 03/19/2021 Fidelity Capital Markets 7,096.000 2,415,190 0 59156R-10-8 METLIFE ORD 01/29/2021 Fidelity Capital Markets 4,160.000 199,640 0 665859-10-4 NORTHERN TRUST ORD 01/15/2021 Fidelity Capital Markets 2,080.000 199,619 0 681919-10-6 OMNICOM GROUP ORD 01/22/2021 Fidelity Capital Markets 3,520.000 220,656 0 75513E-10-1 RAYTHEON TECHNOLOGIES ORD 01/25/2021 Fidelity Capital Markets 34,880.000 2,394,851 0 7591EP-10-0 REGIONS FINANCIAL ORD 03/02/2021 Fidelity Capital Markets 16,400.000 350,304 0 838518-10-8 S JERSEY INDS ORD 03/17/2021 Fidelity Capital Markets 16,800.000 398,509 0 857477-10-3 STATE STREET ORD 01/29/2021 Fidelity Capital Markets 2,880.000 199,299 0 902973-30-4 US BANCORP ORD 01/20/2021 Fidelity Capital Markets 8,320.000 392,196 0 92343V-10-4 VERIZON COMMUNICATIONS ORD 01/05/2021 Fidelity Capital Markets 3,360.000 196,585 0 94106L-10-9 WASTE MANAGEMENT ORD 02/03/2021 Fidelity Capital Markets 1,760.000 198,546 0 9099999. Subtotal - Common Stocks - Industrial and Miscellaneous (Unaffiliated) Publicly Traded 18,974,117 XXX 0 XXX 9799997. Total - Common Stocks - Part 3 18,974,117 XXX 0 XXX 9799998. Total - Common Stocks - Part 5 XXX XXX XXX XXX 9799999. Total - Common Stocks 18,974,117 XXX 0 XXX 9899999. Total - Preferred and Common Stocks 18,974,117 XXX 0 XXX 9999999 - Totals 529,615,429 XXX 706,610 XXX STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE D - PART 4 Show All Long-Term Bonds and Stock Sold, Redeemed or Otherwise Disposed of During the Current Quarter 1 2 3 4 5 6 7 8 9 10 Change In Book/Adjusted Carrying Value 16 17 18 19 20 21 22 11 12 13 14 15 NAIC Desig- nation, NAIC Total Total Desig- Current Change in Foreign Bond nation Year's Book/ Exchange Book/ Interest/ Modifier Prior Year Current Other Than Adjusted Change in Adjusted Foreign Stock Stated and Book/ Unrealized Year's Temporary Carrying Book Carrying Exchange Realized Dividends Con- SVO CUSIP Number of Adjusted Valuation (Amor- Impairment Value /Adjusted Value at Gain Gain Total Gain Received tractual Admini- Ident- For- Disposal Name Shares of Consid- Actual Carrying Increase/ tization)/ Recog- (11 + 12 - Carrying Disposal (Loss) on (Loss) on (Loss) on During Maturity strative ification Description eign Date of Purchaser Stock eration Par Value Cost Value (Decrease) Accretion nized 13) Value Date Disposal Disposal Disposal Year Date Symbol 36202E-T2-5 G2 004169 - RMBS 03/01/2021 Paydown 10,269 10,269 11,412 11,511 0 (1,242) 0 (1,242) 0 10,269 0 0 0 95 06/20/2038 1.A 3620AR-3K-5 GN 738002 - RMBS 03/01/2021 Paydown 73,450 73,450 78,041 77,301 0 (3,850) 0 (3,850) 0 73,450 0 0 0 542 02/15/2041 1.A 3622A2-CH-3 GN 783672 - RMBS 03/01/2021 Paydown 66,151 66,151 69,170 69,035 0 (2,884) 0 (2,884) 0 66,151 0 0 0 303 10/15/2042 1.A 38377L-LN-6 GNR 2010-116 GW - CMO/RMBS 03/01/2021 Paydown 32,660 32,660 32,987 32,713 0 (53) 0 (53) 0 32,660 0 0 0 158 12/20/2039 1.A 38377T-GQ-8 GNR 2011-011 PC - CMO/RMBS 03/01/2021 Paydown 11,559 11,559 11,762 11,590 0 (31) 0 (31) 0 11,559 0 0 0 37 04/20/2040 1.A 38377T-MF-5 GNR 2011-003 JC - CMO/RMBS 03/01/2021 Paydown 47,016 47,016 45,958 46,523 0 493 0 493 0 47,016 0 0 0 190 07/20/2040 1.A 38378F-GE-4 GNR 2013-009 PT - CMO/RMBS 03/01/2021 Paydown 10,000 10,000 10,484 10,531 0 (531) 0 (531) 0 10,000 0 0 0 49 01/20/2043 1.A 38378V-2P-9 GNR 2013-117 B - CMO/RMBS 03/01/2021 Paydown 173,591 173,591 166,756 171,669 0 1,922 0 1,922 0 173,591 0 0 0 828 10/20/2040 1.A 38380T-B7-0 GNR 2017-107 T - CMO/RMBS 03/01/2021 Paydown 35,811 35,811 36,522 36,401 0 (589) 0 (589) 0 35,811 0 0 0 269 01/20/2047 1.A 38380Y-R4-9 GNR 2018-122 HA - CMO/RMBS 03/01/2021 Paydown 283,436 283,436 282,683 282,796 0 640 0 640 0 283,436 0 0 0 1,586 05/20/2045 1.A 38381R-3C-1 GNR 2019-038 JG - CMO/RMBS 03/01/2021 Paydown 327,404 327,404 328,120 328,063 0 (660) 0 (660) 0 327,404 0 0 0 1,481 03/20/2049 1.A 38382A-NY-7 GNR 2019-125 EA - CMO/RMBS 03/01/2021 Paydown 1,372,051 1,372,051 1,366,275 1,365,252 0 6,799 0 6,799 0 1,372,051 0 0 0 3,826 10/20/2049 1.A WELLS FARGO SECURITIES 91282C-BL-4 UNITED STATES TREASURY 03/26/2021 LLC 1,426,992 1,500,000 1,481,895 0 0 189 0 189 0 1,482,083 0 (55,091) (55,091) 1,958 02/15/2031 1.A 0599999. Subtotal - Bonds - U.S. Governments 3,870,392 3,943,400 3,922,064 2,443,384 0 204 0 204 0 3,925,483 0 (55,091) (55,091) 11,322 XXX XXX 100853-LJ-7 BOSTON MASS 01/29/2021 Call @ 100.00 1,540,000 1,540,000 1,538,306 1,539,378 0 8 0 8 0 1,539,386 0 614 614 24,987 04/01/2026 1.A FE

E05 100853-LK-4 BOSTON MASS 01/29/2021 Call @ 100.00 3,005,000 3,005,000 3,121,134 3,004,069 0 10 0 10 0 3,004,079 0 921 921 49,741 04/01/2027 1.A FE 562333-FS-8 MANCHESTER N H 01/04/2021 Call @ 100.00 1,000,000 1,000,000 1,015,140 1,000,000 0 0 0 0 0 1,000,000 0 0 0 25,000 07/01/2024 1.C FE 963439-YA-6 WHITE BEAR LAKE MINN INDPT SCH DIST NO 6 02/01/2021 Maturity @ 100.00 850,000 850,000 845,986 850,048 0 (48) 0 (48) 0 850,000 0 0 0 21,250 02/01/2021 1.A FE 2499999. Subtotal - Bonds - U.S. Political Subdivisions of States, Territories and Possessions 6,395,000 6,395,000 6,520,566 6,393,495 0 (30) 0 (30) 0 6,393,465 0 1,535 1,535 120,978 XXX XXX 196479-U6-4 COLORADO HSG & FIN AUTH 03/01/2021 Call @ 100.00 10,000 10,000 10,000 10,000 0 0 0 0 0 10,000 0 0 0 4 05/01/2027 1.A FE 196479-U7-2 COLORADO HSG & FIN AUTH 03/01/2021 Call @ 100.00 5,000 5,000 5,000 5,000 0 0 0 0 0 5,000 0 0 0 2 11/01/2027 1.A FE 196479-U8-0 COLORADO HSG & FIN AUTH 03/01/2021 Call @ 100.00 5,000 5,000 5,000 5,000 0 0 0 0 0 5,000 0 0 0 1 05/01/2028 1.A FE 196479-U9-8 COLORADO HSG & FIN AUTH 03/01/2021 Call @ 100.00 10,000 10,000 10,000 10,000 0 0 0 0 0 10,000 0 0 0 4 11/01/2028 1.A FE 196479-VN-6 COLORADO HSG & FIN AUTH 03/01/2021 Call @ 100.00 140,000 140,000 140,000 140,000 0 0 0 0 0 140,000 0 0 0 677 09/01/2041 1.A FE 196480-GG-6 COLORADO HSG & FIN AUTH 03/01/2021 Paydown 117,860 117,860 117,455 117,461 0 399 0 399 0 117,860 0 0 0 637 04/01/2050 1.A FE 30262D-AL-5 FREMF 2011-K13 B - CMBS 01/01/2021 Paydown 8,800,000 8,800,000 9,423,109 8,800,000 0 0 0 0 0 8,800,000 0 0 0 71,562 01/25/2048 1.A 3128JM-TH-0 FH 1B2451 - RMBS 03/01/2021 Paydown 95,973 95,973 94,953 90,020 0 5,953 0 5,953 0 95,973 0 0 0 545 11/01/2035 1.A 3128LX-QN-3 FH G02261 - RMBS 03/01/2021 Paydown 24,202 24,202 25,370 25,554 0 (1,352) 0 (1,352) 0 24,202 0 0 0 195 12/01/2035 1.A 3128M8-G9-9 FH G06224 - RMBS 03/01/2021 Paydown 108,390 108,390 103,513 104,691 0 3,699 0 3,699 0 108,390 0 0 0 627 01/01/2041 1.A 3128ME-WZ-0 FH G15864 - RMBS 03/01/2021 Paydown 57,890 57,890 60,947 59,949 0 (2,059) 0 (2,059) 0 57,890 0 0 0 285 07/01/2031 1.A 3128MF-AN-8 FH G16113 - RMBS 03/01/2021 Paydown 53,860 53,860 55,551 55,058 0 (1,199) 0 (1,199) 0 53,860 0 0 0 250 03/01/2032 1.A 3128MJ-3J-7 FH G08800 - RMBS 03/01/2021 Paydown 1,189,116 1,189,116 1,176,296 1,178,085 0 11,031 0 11,031 0 1,189,116 0 0 0 6,723 02/01/2048 1.A 3128MJ-W9-7 FH G08671 - RMBS 03/01/2021 Paydown 93,822 93,822 95,999 95,737 0 (1,915) 0 (1,915) 0 93,822 0 0 0 530 10/01/2045 1.A 3128MJ-WV-8 FH G08659 - RMBS 03/01/2021 Paydown 496,391 496,391 493,366 493,671 0 2,720 0 2,720 0 496,391 0 0 0 2,775 08/01/2045 1.A 3128MJ-XA-3 FH G08672 - RMBS 03/01/2021 Paydown 387,829 387,829 412,820 410,625 0 (22,796) 0 (22,796) 0 387,829 0 0 0 2,573 10/01/2045 1.A 3128MJ-XE-5 FH G08676 - RMBS 03/01/2021 Paydown 739,743 739,743 760,728 755,786 0 (16,043) 0 (16,043) 0 739,743 0 0 0 4,104 11/01/2045 1.A 3128MJ-XJ-4 FH G08680 - RMBS 03/01/2021 Paydown 1,135,417 1,135,417 1,133,560 1,134,013 0 1,404 0 1,404 0 1,135,417 0 0 0 5,084 12/01/2045 1.A 3128MJ-XR-6 FH G08687 - RMBS 03/01/2021 Paydown 602,285 602,285 631,082 623,809 0 (21,524) 0 (21,524) 0 602,285 0 0 0 3,357 01/01/2046 1.A 3128MJ-Y5-3 FH G08731 - RMBS 03/01/2021 Paydown 417,744 417,744 410,956 412,970 0 4,774 0 4,774 0 417,744 0 0 0 1,687 11/01/2046 1.A 3128MJ-YS-3 FH G08720 - RMBS 03/01/2021 Paydown 87,469 87,469 91,733 91,904 0 (4,435) 0 (4,435) 0 87,469 0 0 0 667 08/01/2046 1.A 3128MJ-ZB-9 FH G08737 - RMBS 03/01/2021 Paydown 1,699,118 1,699,118 1,722,481 1,714,811 0 (15,693) 0 (15,693) 0 1,699,118 0 0 0 8,225 12/01/2046 1.A 3128MJ-ZF-0 FH G08741 - RMBS 03/01/2021 Paydown 225,613 225,613 225,358 225,356 0 258 0 258 0 225,613 0 0 0 1,107 01/01/2047 1.A 3128MM-TC-7 FH G18546 - RMBS 03/01/2021 Paydown 96,405 96,405 101,752 100,161 0 (3,757) 0 (3,757) 0 96,405 0 0 0 550 03/01/2030 1.A 3128MM-VL-4 FH G18618 - RMBS 03/01/2021 Paydown 294,902 294,902 278,493 281,060 0 13,842 0 13,842 0 294,902 0 0 0 989 11/01/2031 1.A 3128MM-YP-2 FH G18717 - RMBS 03/01/2021 Paydown 100,604 100,604 102,741 102,857 0 (2,253) 0 (2,253) 0 100,604 0 0 0 623 12/01/2033 1.A 3128P7-5M-1 FH C91752 - RMBS 03/01/2021 Paydown 25,047 25,047 26,311 25,896 0 (849) 0 (849) 0 25,047 0 0 0 134 02/01/2034 1.A 3128P8-E8-0 FH C91959 - RMBS 03/01/2021 Paydown 549,474 549,474 530,457 532,100 0 17,374 0 17,374 0 549,474 0 0 0 2,657 11/01/2037 1.A 31292L-AD-7 FH C03604 - RMBS 03/01/2021 Paydown 63,860 63,860 60,986 61,396 0 2,464 0 2,464 0 63,860 0 0 0 410 12/01/2040 1.A 312943-NE-9 FH A94889 - RMBS 03/01/2021 Paydown 1,021,430 1,021,430 1,045,526 1,039,329 0 (17,899) 0 (17,899) 0 1,021,430 0 0 0 7,205 11/01/2040 1.A 3130AD-D8-2 FEDERAL HOME LOAN BANKS 01/25/2021 Call @ 100.00 8,425,000 8,425,000 8,105,048 8,171,937 0 1,894 0 1,894 0 8,173,831 0 251,169 251,169 129,324 07/25/2028 1.A 31323A-BM-3 FH T65444 - RMBS 03/01/2021 Paydown 801,363 801,363 794,477 796,579 0 4,784 0 4,784 0 801,363 0 0 0 4,023 11/01/2047 1.A 3132AE-J7-2 FH ZT2086 - RMBS 03/01/2021 Paydown 1,189,899 1,189,899 1,218,252 1,228,040 0 (38,141) 0 (38,141) 0 1,189,899 0 0 0 6,703 06/01/2049 1.A 3132AE-KL-9 FH ZT2099 - RMBS 03/01/2021 Paydown 104,096 104,096 107,496 107,438 0 (3,342) 0 (3,342) 0 104,096 0 0 0 535 11/01/2046 1.A STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE D - PART 4 Show All Long-Term Bonds and Stock Sold, Redeemed or Otherwise Disposed of During the Current Quarter 1 2 3 4 5 6 7 8 9 10 Change In Book/Adjusted Carrying Value 16 17 18 19 20 21 22 11 12 13 14 15 NAIC Desig- nation, NAIC Total Total Desig- Current Change in Foreign Bond nation Year's Book/ Exchange Book/ Interest/ Modifier Prior Year Current Other Than Adjusted Change in Adjusted Foreign Stock Stated and Book/ Unrealized Year's Temporary Carrying Book Carrying Exchange Realized Dividends Con- SVO CUSIP Number of Adjusted Valuation (Amor- Impairment Value /Adjusted Value at Gain Gain Total Gain Received tractual Admini- Ident- For- Disposal Name Shares of Consid- Actual Carrying Increase/ tization)/ Recog- (11 + 12 - Carrying Disposal (Loss) on (Loss) on (Loss) on During Maturity strative ification Description eign Date of Purchaser Stock eration Par Value Cost Value (Decrease) Accretion nized 13) Value Date Disposal Disposal Disposal Year Date Symbol 3132D6-NU-0 FH SB8503 - RMBS 03/01/2021 Paydown 97,833 97,833 102,541 102,397 0 (4,564) 0 (4,564) 0 97,833 0 0 0 540 08/01/2035 1.A 3132DM-SK-2 FH SD0522 - RMBS 03/01/2021 Paydown 10,828 10,828 11,520 0 0 (692) 0 (692) 0 10,828 0 0 0 27 12/01/2050 1.A 3132DV-3J-2 FH SD8001 - RMBS 03/01/2021 Paydown 655,510 655,510 671,590 675,664 0 (20,154) 0 (20,154) 0 655,510 0 0 0 3,578 07/01/2049 1.A 3132DV-3N-3 FH SD8005 - RMBS 03/01/2021 Paydown 1,711,410 1,711,410 1,754,997 1,768,523 0 (57,113) 0 (57,113) 0 1,711,410 0 0 0 9,344 08/01/2049 1.A 3132DV-4V-4 FH SD8036 - RMBS 03/01/2021 Paydown 1,076,136 1,076,136 1,092,446 1,093,201 0 (17,065) 0 (17,065) 0 1,076,136 0 0 0 5,254 01/01/2050 1.A 3132DV-LC-7 FH SD7523 - RMBS 03/30/2021 Various 12,005,254 11,656,881 12,369,043 12,360,519 0 (26,742) 0 (26,742) 0 12,333,777 0 (328,523) (328,523) 82,230 08/01/2050 1.A 3132DV-LG-8 FH SD7527 - RMBS 03/01/2021 Paydown 97,105 97,105 101,110 101,106 0 (4,001) 0 (4,001) 0 97,105 0 0 0 322 11/01/2050 1.A 3132DV-LH-6 FH SD7528 - RMBS 03/04/2021 Various 8,062,634 7,989,358 8,291,404 8,288,183 0 (9,728) 0 (9,728) 0 8,278,455 0 (215,821) (215,821) 43,997 11/01/2050 1.A 3132GS-N6-2 FH Q07313 - RMBS 03/01/2021 Paydown 234,718 234,718 242,562 240,274 0 (5,556) 0 (5,556) 0 234,718 0 0 0 1,478 03/01/2042 1.A 3132WD-BP-8 FH Q40045 - RMBS 03/01/2021 Paydown 109,924 109,924 113,737 112,942 0 (3,019) 0 (3,019) 0 109,924 0 0 0 630 04/01/2046 1.A 3132WH-5N-1 FH Q44452 - RMBS 03/01/2021 Paydown 1,156,270 1,156,270 1,161,608 1,159,559 0 (3,290) 0 (3,290) 0 1,156,270 0 0 0 5,514 11/01/2046 1.A 3132WJ-ZS-3 FH Q45252 - RMBS 03/01/2021 Paydown 1,105,845 1,105,845 1,086,665 1,091,956 0 13,888 0 13,888 0 1,105,845 0 0 0 5,127 01/01/2047 1.A 3132WK-Q8-4 FH Q45878 - RMBS 03/01/2021 Paydown 732,987 732,987 729,150 729,817 0 3,170 0 3,170 0 732,987 0 0 0 3,761 12/01/2046 1.A 31334Y-CU-9 FH QA1883 - RMBS 03/01/2021 Paydown 174,854 174,854 184,089 183,846 0 (8,991) 0 (8,991) 0 174,854 0 0 0 1,317 08/01/2049 1.A 31335A-BE-7 FH G60037 - RMBS 03/01/2021 Paydown 503,773 503,773 489,762 490,474 0 13,299 0 13,299 0 503,773 0 0 0 2,571 10/01/2043 1.A

31335B-C2-0 FH G60989 - RMBS 03/01/2021 Paydown 478,727 478,727 477,605 477,674 0 1,053 0 1,053 0 478,727 0 0 0 2,323 12/01/2046 1.A E05.1 31335B-M6-0 FH G61281 - RMBS 03/01/2021 Paydown 764,164 764,164 794,341 791,440 0 (27,276) 0 (27,276) 0 764,164 0 0 0 4,372 01/01/2048 1.A 3133A2-D6-4 FH QA7325 - RMBS 03/01/2021 Paydown 284,205 284,205 291,399 291,421 0 (7,216) 0 (7,216) 0 284,205 0 0 0 1,501 02/01/2050 1.A 3133EH-6S-7 FEDERAL FARM CREDIT BANKS FUNDING CORP 01/12/2021 Call @ 100.00 5,000,000 5,000,000 5,000,000 5,000,000 0 0 0 0 0 5,000,000 0 0 0 75,750 01/12/2028 1.A 3133EL-LP-7 FEDERAL FARM CREDIT BANKS FUNDING CORP 02/04/2021 Call @ 100.00 4,000,000 4,000,000 3,998,000 3,998,132 0 13 0 13 0 3,998,146 0 1,854 1,854 50,600 02/04/2032 1.A 3133EL-MP-6 FEDERAL FARM CREDIT BANKS FUNDING CORP 02/10/2021 Call @ 100.00 4,600,000 4,600,000 4,595,400 4,595,670 0 33 0 33 0 4,595,703 0 4,297 4,297 58,420 02/10/2033 1.A 3133GA-F2-7 FH QN3785 - RMBS 03/01/2021 Paydown 43,291 43,291 45,185 45,142 0 (1,851) 0 (1,851) 0 43,291 0 0 0 123 10/01/2035 1.A 3133KJ-4H-2 FH RA3524 - RMBS 03/01/2021 Paydown 12,480 12,480 12,983 12,969 0 (489) 0 (489) 0 12,480 0 0 0 44 09/01/2050 1.A 3133KJ-5Y-4 FH RA3563 - RMBS 02/17/2021 Various 12,132,421 11,894,706 12,317,526 12,303,630 0 (17,414) 0 (17,414) 0 12,286,216 0 (153,795) (153,795) 65,592 09/01/2050 1.A 3133KK-D6-3 FH RA3725 - RMBS 02/17/2021 Various 8,042,860 7,886,626 8,155,265 8,147,901 0 (9,670) 0 (9,670) 0 8,138,231 0 (95,372) (95,372) 43,505 10/01/2050 1.A 3133TH-V7-9 FHR 2113 QG - CMO/RMBS 03/01/2021 Paydown 13,803 13,803 13,937 13,901 0 (99) 0 (99) 0 13,803 0 0 0 155 01/15/2029 1.A 31346Y-VM-2 FH QA5120 - RMBS 03/01/2021 Paydown 1,022,026 1,022,026 1,057,398 1,057,959 0 (35,933) 0 (35,933) 0 1,022,026 0 0 0 6,432 11/01/2049 1.A 3136A0-3K-1 FNR 2011-87 LB - CMO/RMBS 03/01/2021 Paydown 350,624 350,624 368,155 353,771 0 (3,147) 0 (3,147) 0 350,624 0 0 0 1,850 09/25/2026 1.A 3136A5-ZR-0 FNR 2012-54 WA - CMO/RMBS 03/01/2021 Paydown 117,154 117,154 116,861 116,879 0 275 0 275 0 117,154 0 0 0 550 04/25/2032 1.A 3136A8-LL-2 FNR 2012-93 TY - CMO/RMBS 03/01/2021 Paydown 179,324 179,324 168,737 171,502 0 7,821 0 7,821 0 179,324 0 0 0 565 06/25/2042 1.A 3136AA-EK-7 FNR 2012-129 TD - CMO/RMBS 03/01/2021 Paydown 3,445 3,445 3,451 3,450 0 (5) 0 (5) 0 3,445 0 0 0 11 05/25/2040 1.A 3136AC-3H-2 FNR 2013-14 NG - CMO/RMBS 03/01/2021 Paydown 11,883 11,883 11,942 11,961 0 (78) 0 (78) 0 11,883 0 0 0 27 03/25/2043 1.A 3136AE-BJ-5 FNR 2013-47 YA - CMO/RMBS 03/01/2021 Paydown 121,972 121,972 115,111 116,607 0 5,365 0 5,365 0 121,972 0 0 0 406 05/25/2040 1.A 3136AE-J3-2 FNR 2013-52 MG - CMO/RMBS 03/01/2021 Paydown 13,785 13,785 13,815 13,815 0 (29) 0 (29) 0 13,785 0 0 0 30 06/25/2043 1.A 3136AE-R2-5 FNR 2013-52 EB - CMO/RMBS 03/01/2021 Paydown 13,205 13,205 13,254 13,217 0 (12) 0 (12) 0 13,205 0 0 0 25 03/25/2043 1.A 3136AG-SU-7 FNR 2013-104 JA - CMO/RMBS 03/01/2021 Paydown 191,113 191,113 194,305 191,575 0 (462) 0 (462) 0 191,113 0 0 0 932 12/25/2030 1.A 3136AG-ZA-3 FNR 2013-101 A - CMO/RMBS 03/01/2021 Paydown 96,344 96,344 97,684 96,508 0 (164) 0 (164) 0 96,344 0 0 0 501 09/25/2030 1.A 3136AH-6F-2 FNR 2014-5 JL - CMO/RMBS 03/01/2021 Paydown 830,089 830,089 867,573 845,448 0 (15,359) 0 (15,359) 0 830,089 0 0 0 4,480 02/25/2044 1.A 3136AH-H9-4 FNR 2013-130 A - CMO/RMBS 03/01/2021 Paydown 112,094 112,094 111,469 111,659 0 435 0 435 0 112,094 0 0 0 644 01/25/2044 1.A 3136AH-M2-3 FNR 2013-130 AG - CMO/RMBS 03/01/2021 Paydown 132,653 132,653 134,230 133,866 0 (1,213) 0 (1,213) 0 132,653 0 0 0 744 10/25/2043 1.A 3136AK-2Y-8 FNR 2014-64 TY - CMO/RMBS 03/01/2021 Paydown 1,059,063 1,059,063 1,038,875 1,051,792 0 7,271 0 7,271 0 1,059,063 0 0 0 5,503 09/25/2042 1.A 3136AL-KL-4 FNR 2014-72 MH - CMO/RMBS 03/01/2021 Paydown 13,773 13,773 14,462 14,114 0 (340) 0 (340) 0 13,773 0 0 0 76 03/25/2044 1.A 3136AR-PP-7 FNR 2016-11 LA - CMO/RMBS 03/01/2021 Paydown 109,154 109,154 109,751 109,273 0 (119) 0 (119) 0 109,154 0 0 0 659 05/25/2042 1.A 3136AX-C8-6 FNR 2017-69 EG - CMO/RMBS 03/01/2021 Paydown 373,189 373,189 372,456 372,444 0 745 0 745 0 373,189 0 0 0 1,703 09/25/2047 1.A 3136B0-CA-2 FNR 2017-97 HP - CMO/RMBS 03/01/2021 Paydown 139,782 139,782 135,643 136,275 0 3,507 0 3,507 0 139,782 0 0 0 697 07/25/2047 1.A 3136B1-LV-4 FNR 2018-24 VD - CMO/RMBS 03/01/2021 Paydown 51,766 51,766 52,219 51,980 0 (214) 0 (214) 0 51,766 0 0 0 302 04/25/2031 1.A 3136B3-VJ-6 FNR 2018-96 BH - CMO/RMBS 03/01/2021 Paydown 736,021 736,021 760,544 755,375 0 (19,354) 0 (19,354) 0 736,021 0 0 0 4,311 09/25/2047 1.A 3136B5-QE-8 FNR 2019-45 CL - CMO/RMBS 03/01/2021 Paydown 1,067,196 1,067,196 1,067,029 1,067,057 0 139 0 139 0 1,067,196 0 0 0 5,073 08/25/2049 1.A 3136B6-YL-1 FNR 2019-66 LA - CMO/RMBS 03/01/2021 Paydown 721,259 721,259 714,272 715,100 0 6,159 0 6,159 0 721,259 0 0 0 1,754 11/25/2049 1.A 3137A1-PS-6 FHR 3734 B - CMO/RMBS 03/01/2021 Paydown 100,511 100,511 100,731 100,470 0 41 0 41 0 100,511 0 0 0 600 09/15/2025 1.A 3137A3-H7-7 FHR 3751 HB - CMO/RMBS 03/01/2021 Paydown 574,578 574,578 574,578 574,578 0 0 0 0 0 574,578 0 0 0 3,282 11/15/2025 1.A 3137A4-2G-1 FHR 3777 DY - CMO/RMBS 03/01/2021 Paydown 208,017 208,017 214,647 209,510 0 (1,494) 0 (1,494) 0 208,017 0 0 0 1,191 12/15/2025 1.A 3137A5-VQ-4 FHR 3786 TA - CMO/RMBS 01/15/2021 Paydown 960 960 964 960 0 0 0 0 0 960 0 0 0 3 07/15/2025 1.A 3137A6-L6-7 FHR 3814 B - CMO/RMBS 03/01/2021 Paydown 94,948 94,948 99,803 96,071 0 (1,123) 0 (1,123) 0 94,948 0 0 0 455 02/15/2026 1.A STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE D - PART 4 Show All Long-Term Bonds and Stock Sold, Redeemed or Otherwise Disposed of During the Current Quarter 1 2 3 4 5 6 7 8 9 10 Change In Book/Adjusted Carrying Value 16 17 18 19 20 21 22 11 12 13 14 15 NAIC Desig- nation, NAIC Total Total Desig- Current Change in Foreign Bond nation Year's Book/ Exchange Book/ Interest/ Modifier Prior Year Current Other Than Adjusted Change in Adjusted Foreign Stock Stated and Book/ Unrealized Year's Temporary Carrying Book Carrying Exchange Realized Dividends Con- SVO CUSIP Number of Adjusted Valuation (Amor- Impairment Value /Adjusted Value at Gain Gain Total Gain Received tractual Admini- Ident- For- Disposal Name Shares of Consid- Actual Carrying Increase/ tization)/ Recog- (11 + 12 - Carrying Disposal (Loss) on (Loss) on (Loss) on During Maturity strative ification Description eign Date of Purchaser Stock eration Par Value Cost Value (Decrease) Accretion nized 13) Value Date Disposal Disposal Disposal Year Date Symbol 3137A7-4Z-0 FHR 3803 PC - CMO/RMBS 03/01/2021 Paydown 16,044 16,044 15,984 16,007 0 37 0 37 0 16,044 0 0 0 86 01/15/2041 1.A 3137AE-G8-2 FHR 3903 QC - CMO/RMBS 03/01/2021 Paydown 4,830 4,830 4,918 4,849 0 (19) 0 (19) 0 4,830 0 0 0 20 03/15/2041 1.A 3137AH-2W-7 FHR 3936 AB - CMO/RMBS 03/01/2021 Paydown 166,221 166,221 169,442 166,833 0 (612) 0 (612) 0 166,221 0 0 0 893 10/15/2026 1.A 3137AM-UP-0 FHR 4010 QA - CMO/RMBS 03/01/2021 Paydown 70,850 70,850 65,359 66,630 0 4,220 0 4,220 0 70,850 0 0 0 222 01/15/2042 1.A 3137AR-5L-6 FHR 4060 JC - CMO/RMBS 03/01/2021 Paydown 159,166 159,166 148,721 155,261 0 3,906 0 3,906 0 159,166 0 0 0 502 02/15/2041 1.A 3137AU-A4-1 FHR 4103 DV - CMO/RMBS 03/01/2021 Paydown 98,046 98,046 98,991 98,340 0 (294) 0 (294) 0 98,046 0 0 0 491 11/15/2025 1.A 3137AY-D3-2 FHR 4166 PV - CMO/RMBS 03/01/2021 Paydown 43,649 43,649 45,907 44,735 0 (1,086) 0 (1,086) 0 43,649 0 0 0 237 07/15/2037 1.A 3137B1-LM-2 FHR 4198 BM - CMO/RMBS 03/01/2021 Paydown 266,312 266,312 265,740 265,901 0 410 0 410 0 266,312 0 0 0 1,242 10/15/2040 1.A 3137BC-L2-2 FHR 4367 CY - CMO/RMBS 03/01/2021 Paydown 695,011 695,011 683,283 692,306 0 2,706 0 2,706 0 695,011 0 0 0 5,213 02/15/2040 1.A 3137F7-JJ-5 FHR 5057 GA - CMBS/CMO/RMBS 03/01/2021 Paydown 111,855 111,855 115,849 115,822 0 (3,967) 0 (3,967) 0 111,855 0 0 0 380 12/25/2050 1.A 3137F7-MW-2 FHR 5050 CP - CMO/RMBS 03/01/2021 Paydown 108,786 108,786 112,933 112,910 0 (4,124) 0 (4,124) 0 108,786 0 0 0 372 12/25/2050 1.A 3137F9-GM-7 FHR 5074 KP - CMO/RMBS 03/01/2021 Paydown 51,488 51,488 53,310 0 0 (1,822) 0 (1,822) 0 51,488 0 0 0 130 02/25/2051 1.A 3137FC-B7-8 FHR 4743 P - CMO/RMBS 03/01/2021 Paydown 29,145 29,145 29,650 29,629 0 (484) 0 (484) 0 29,145 0 0 0 153 12/15/2047 1.A 3137FL-3C-6 FHR 4863 HP - CMO/RMBS 03/01/2021 Paydown 1,161,931 1,161,931 1,172,824 1,173,176 0 (11,245) 0 (11,245) 0 1,161,931 0 0 0 6,619 03/15/2049 1.A 3137FL-3R-3 FHR 4863 K - CMO/RMBS 03/01/2021 Paydown 907,898 907,898 913,856 912,890 0 (4,992) 0 (4,992) 0 907,898 0 0 0 5,152 03/15/2049 1.A

3137FL-A3-8 FHR 4875 DA - CMO/RMBS 03/01/2021 Paydown 81,722 81,722 82,858 82,546 0 (824) 0 (824) 0 81,722 0 0 0 465 07/15/2048 1.A E05.2 3137FL-W5-9 FHR 4881 AK - CMO/RMBS 03/01/2021 Paydown 348,609 348,609 354,690 354,216 0 (5,607) 0 (5,607) 0 348,609 0 0 0 1,946 02/15/2048 1.A 3137FM-2E-1 FHR 4891 PB - CMO/RMBS 03/01/2021 Paydown 911,112 911,112 928,693 931,479 0 (20,367) 0 (20,367) 0 911,112 0 0 0 5,081 06/15/2049 1.A 3137FN-FS-4 FHR 4911 LB - CMO/RMBS 03/01/2021 Paydown 351,185 351,185 352,718 352,984 0 (1,799) 0 (1,799) 0 351,185 0 0 0 899 08/25/2049 1.A 3138A8-SQ-0 FN AH6826 - RMBS 03/01/2021 Paydown 23,832 23,832 24,998 24,287 0 (454) 0 (454) 0 23,832 0 0 0 154 03/01/2026 1.A 3138ET-ZD-1 FN AL8839 - RMBS 03/01/2021 Paydown 107,041 107,041 115,270 114,043 0 (7,002) 0 (7,002) 0 107,041 0 0 0 681 03/01/2043 1.A 3138WG-M2-7 FN AS6676 - RMBS 03/01/2021 Paydown 109,338 109,338 114,036 113,275 0 (3,938) 0 (3,938) 0 109,338 0 0 0 678 02/01/2046 1.A 3138WJ-Q2-7 FN AS8572 - RMBS 03/01/2021 Paydown 515,014 515,014 512,761 512,883 0 2,130 0 2,130 0 515,014 0 0 0 3,191 12/01/2046 1.A 3138X0-Y2-8 FN AU1628 - RMBS 03/01/2021 Paydown 218,715 218,715 227,395 225,190 0 (6,475) 0 (6,475) 0 218,715 0 0 0 1,000 07/01/2043 1.A 31394G-U9-2 FHR 2666 BD - CMO/RMBS 03/01/2021 Paydown 75,015 75,015 75,702 75,054 0 (39) 0 (39) 0 75,015 0 0 0 558 08/15/2023 1.A 31395V-DH-9 FHR 2989 CB - CMO/RMBS 03/01/2021 Paydown 80,938 80,938 81,013 80,851 0 87 0 87 0 80,938 0 0 0 594 06/15/2025 1.A 31396E-4L-7 FHR 3044 EX - CMO/RMBS 03/01/2021 Paydown 81,409 81,409 81,866 81,452 0 (44) 0 (44) 0 81,409 0 0 0 661 10/15/2025 1.A 31396U-T4-2 FHR 3187 JZ - CMO/RMBS 03/01/2021 Paydown 135,033 135,033 142,401 142,134 0 (7,100) 0 (7,100) 0 135,033 0 0 0 983 07/15/2036 1.A 31397S-C5-1 FNR 2011-36 DB - CMO/RMBS 03/01/2021 Paydown 360,087 360,087 359,749 359,473 0 613 0 613 0 360,087 0 0 0 1,737 05/25/2026 1.A 31397U-ZB-8 FNR 2011-58 AL - CMO/RMBS 03/01/2021 Paydown 218,456 218,456 223,917 219,581 0 (1,125) 0 (1,125) 0 218,456 0 0 0 1,264 07/25/2026 1.A 31398E-4H-4 FHR 3546 NB - CMO/RMBS 03/01/2021 Paydown 122,327 122,327 130,023 123,562 0 (1,235) 0 (1,235) 0 122,327 0 0 0 818 06/15/2024 1.A 31402C-4G-4 FN 725423 - RMBS 03/01/2021 Paydown 45,347 45,347 51,625 50,906 0 (5,559) 0 (5,559) 0 45,347 0 0 0 392 05/01/2034 1.A 3140EV-B6-3 FN BC0960 - RMBS 03/01/2021 Paydown 83,309 83,309 88,216 87,580 0 (4,271) 0 (4,271) 0 83,309 0 0 0 549 06/01/2046 1.A 3140EV-VF-1 FN BC1513 - RMBS 03/01/2021 Paydown 559,154 559,154 562,911 561,157 0 (2,003) 0 (2,003) 0 559,154 0 0 0 3,118 08/01/2046 1.A 3140F0-JJ-4 FN BC4764 - RMBS 03/01/2021 Paydown 445,559 445,559 449,283 448,212 0 (2,653) 0 (2,653) 0 445,559 0 0 0 2,242 10/01/2046 1.A 3140F5-BK-8 FN BC9041 - RMBS 03/01/2021 Paydown 108,019 108,019 108,374 108,236 0 (217) 0 (217) 0 108,019 0 0 0 468 11/01/2031 1.A 3140FX-C7-5 FN BF0093 - RMBS 03/01/2021 Paydown 405,132 405,132 417,412 419,327 0 (14,195) 0 (14,195) 0 405,132 0 0 0 2,174 05/01/2056 1.A 3140GY-GZ-6 FN BH9215 - RMBS 03/01/2021 Paydown 911,646 911,646 914,780 913,327 0 (1,681) 0 (1,681) 0 911,646 0 0 0 5,153 01/01/2048 1.A 3140HA-XB-1 FN BJ8773 - RMBS 03/01/2021 Paydown 2,570,770 2,570,770 2,584,308 2,585,597 0 (14,827) 0 (14,827) 0 2,570,770 0 0 0 12,593 09/01/2049 1.A 3140J6-GJ-0 FN BM2000 - RMBS 03/01/2021 Paydown 1,345,752 1,345,752 1,393,904 1,398,682 0 (52,930) 0 (52,930) 0 1,345,752 0 0 0 7,630 05/01/2047 1.A 3140J7-XA-8 FN BM3372 - CMBS/RMBS 03/01/2021 Paydown 14,492 14,492 15,469 0 0 (977) 0 (977) 0 14,492 0 0 0 55 01/01/2028 1.A 3140JP-M9-3 FN BN6683 - RMBS 03/01/2021 Paydown 1,328,179 1,328,179 1,362,524 1,367,510 0 (39,332) 0 (39,332) 0 1,328,179 0 0 0 7,494 06/01/2049 1.A 3140JV-TA-0 FN BO1444 - RMBS 03/01/2021 Paydown 117,045 117,045 119,788 119,621 0 (2,577) 0 (2,577) 0 117,045 0 0 0 681 10/01/2049 1.A 3140KE-QH-4 FN BP6755 - RMBS 03/01/2021 Paydown 43,214 43,214 44,301 44,256 0 (1,042) 0 (1,042) 0 43,214 0 0 0 89 09/01/2035 1.A 3140KF-M7-7 FN BP7581 - RMBS 03/01/2021 Paydown 59,134 59,134 60,538 60,518 0 (1,384) 0 (1,384) 0 59,134 0 0 0 146 11/01/2035 1.A 3140KL-GA-4 FN BQ1092 - RMBS 03/01/2021 Paydown 112,871 112,871 119,996 119,775 0 (6,905) 0 (6,905) 0 112,871 0 0 0 566 08/01/2050 1.A 3140KL-YF-3 FN BQ1609 - RMBS 03/01/2021 Paydown 171,948 171,948 181,674 181,379 0 (9,431) 0 (9,431) 0 171,948 0 0 0 709 09/01/2050 1.A 3140KM-SW-1 FN BQ2332 - RMBS 03/01/2021 Paydown 261,631 261,631 277,738 277,279 0 (15,648) 0 (15,648) 0 261,631 0 0 0 1,379 09/01/2050 1.A 3140L0-D8-7 FN BR1926 - RMBS 03/01/2021 Paydown 46,418 46,418 47,999 0 0 (1,581) 0 (1,581) 0 46,418 0 0 0 113 01/01/2051 1.A 3140L1-DM-4 FN BR2807 - RMBS 03/01/2021 Paydown 29,926 29,926 31,577 0 0 (1,651) 0 (1,651) 0 29,926 0 0 0 62 12/01/2050 1.A 3140Q7-SL-2 FN CA0522 - RMBS 03/01/2021 Paydown 795,320 795,320 783,608 787,249 0 8,071 0 8,071 0 795,320 0 0 0 3,727 10/01/2047 1.A 3140QE-X2-3 FN CA6996 - RMBS 03/01/2021 Various 12,208,607 11,846,868 12,612,750 12,578,487 0 (29,646) 0 (29,646) 0 12,548,841 0 (340,234) (340,234) 81,428 09/01/2050 1.A 3140QF-AQ-2 FN CA7214 - RMBS 03/01/2021 Paydown 17,897 17,897 18,688 18,672 0 (775) 0 (775) 0 17,897 0 0 0 73 10/01/2050 1.A 3140X5-NF-6 FN FM2189 - RMBS 03/01/2021 Paydown 139,351 139,351 145,339 146,622 0 (7,271) 0 (7,271) 0 139,351 0 0 0 794 02/01/2048 1.A STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE D - PART 4 Show All Long-Term Bonds and Stock Sold, Redeemed or Otherwise Disposed of During the Current Quarter 1 2 3 4 5 6 7 8 9 10 Change In Book/Adjusted Carrying Value 16 17 18 19 20 21 22 11 12 13 14 15 NAIC Desig- nation, NAIC Total Total Desig- Current Change in Foreign Bond nation Year's Book/ Exchange Book/ Interest/ Modifier Prior Year Current Other Than Adjusted Change in Adjusted Foreign Stock Stated and Book/ Unrealized Year's Temporary Carrying Book Carrying Exchange Realized Dividends Con- SVO CUSIP Number of Adjusted Valuation (Amor- Impairment Value /Adjusted Value at Gain Gain Total Gain Received tractual Admini- Ident- For- Disposal Name Shares of Consid- Actual Carrying Increase/ tization)/ Recog- (11 + 12 - Carrying Disposal (Loss) on (Loss) on (Loss) on During Maturity strative ification Description eign Date of Purchaser Stock eration Par Value Cost Value (Decrease) Accretion nized 13) Value Date Disposal Disposal Disposal Year Date Symbol 3140X7-JZ-3 FN FM3879 - RMBS 03/01/2021 Paydown 125,024 125,024 132,701 132,546 0 (7,522) 0 (7,522) 0 125,024 0 0 0 543 07/01/2050 1.A 31410K-3J-1 FN 890101 - RMBS 03/01/2021 Paydown 10,089 10,089 11,325 11,381 0 (1,292) 0 (1,292) 0 10,089 0 0 0 79 02/01/2039 1.A 31417Y-GJ-0 FN MA0200 - RMBS 03/01/2021 Paydown 14,407 14,407 15,447 15,195 0 (788) 0 (788) 0 14,407 0 0 0 116 10/01/2029 1.A 31418B-MK-9 FN MA2161 - RMBS 03/01/2021 Paydown 34,970 34,970 37,151 36,509 0 (1,538) 0 (1,538) 0 34,970 0 0 0 182 01/01/2030 1.A 31418C-CP-7 FN MA2777 - RMBS 03/01/2021 Paydown 623,532 623,532 598,378 603,505 0 20,026 0 20,026 0 623,532 0 0 0 2,948 10/01/2046 1.A 31418C-DK-7 FN MA2805 - RMBS 03/01/2021 Paydown 785,037 785,037 761,241 765,831 0 19,206 0 19,206 0 785,037 0 0 0 3,428 11/01/2046 1.A 31418C-E4-2 FN MA2854 - RMBS 03/01/2021 Paydown 1,092,210 1,092,210 1,056,030 1,067,672 0 24,538 0 24,538 0 1,092,210 0 0 0 4,264 12/01/2046 1.A 31418C-M4-3 FN MA3078 - RMBS 03/01/2021 Paydown 550,407 550,407 540,173 541,650 0 8,757 0 8,757 0 550,407 0 0 0 2,552 07/01/2037 1.A 31418C-RF-3 FN MA3185 - RMBS 03/01/2021 Paydown 272,663 272,663 269,765 270,231 0 2,431 0 2,431 0 272,663 0 0 0 1,243 11/01/2037 1.A 31418C-WW-0 FN MA3360 - RMBS 03/01/2021 Paydown 306,767 306,767 307,295 307,035 0 (267) 0 (267) 0 306,767 0 0 0 1,738 05/01/2038 1.A 31418C-XX-7 FN MA3393 - RMBS 03/01/2021 Paydown 200,528 200,528 205,698 205,530 0 (5,002) 0 (5,002) 0 200,528 0 0 0 1,289 06/01/2033 1.A 31418D-C6-7 FN MA3692 - RMBS 03/01/2021 Paydown 835,602 835,602 854,403 859,509 0 (23,907) 0 (23,907) 0 835,602 0 0 0 4,595 07/01/2049 1.A 31418D-HY-1 FN MA3846 - RMBS 03/01/2021 Various 2,270,301 2,249,993 2,254,918 2,256,351 0 (5,634) 0 (5,634) 0 2,250,718 0 19,584 19,584 13,368 11/01/2049 1.A 31418D-P9-7 FN MA4047 - RMBS 03/01/2021 Paydown 1,557,152 1,557,152 1,586,154 1,584,040 0 (26,887) 0 (26,887) 0 1,557,152 0 0 0 5,168 06/01/2050 1.A 31418D-Q7-0 FN MA4077 - RMBS 01/08/2021 Various 3,445,011 3,343,443 3,423,895 3,418,830 0 (2,423) 0 (2,423) 0 3,416,406 0 28,605 28,605 7,920 07/01/2050 1.A

31418D-VB-5 FN MA4209 - RMBS 02/12/2021 Various 15,953,656 15,956,116 16,083,890 16,081,948 0 (3,920) 0 (3,920) 0 16,078,028 0 (124,372) (124,372) 66,125 12/01/2050 1.A E05.3 31418M-GG-1 FN AD0198 - RMBS 03/01/2021 Paydown 12,262 12,262 13,645 13,702 0 (1,440) 0 (1,440) 0 12,262 0 0 0 113 09/01/2038 1.A 34074M-ND-9 FLORIDA HSG FIN CORP REV 03/01/2021 Call @ 100.00 55,913 55,913 55,913 55,913 0 0 0 0 0 55,913 0 0 0 272 07/01/2037 1.A FE WELLS FARGO SECURITIES 41978C-AJ-4 HAWAII ST ARPTS SYS CUSTOMER FAC CHARGE 02/16/2021 LLC 263,153 240,000 240,000 240,000 0 0 0 0 0 240,000 0 23,153 23,153 4,729 07/01/2026 1.F FE 454898-QX-8 INDIANA MUN PWR AGY PWR SUPPLY SYS REV 01/04/2021 Call @ 100.00 145,000 145,000 145,000 145,000 0 0 0 0 0 145,000 0 0 0 5,329 01/01/2024 1.E FE 54627D-EF-4 LOUISIANA HSG CORP SINGLE FAMILY MTG REV 03/01/2021 Redemption @ 100.00 105,308 105,308 105,308 105,308 0 0 0 0 0 105,308 0 0 0 262 03/01/2041 1.A FE 574757-CH-1 MASHANTUCKET WESTERN PEQUOT TRIBE CONN S 03/03/2021 Jefferies 220,295 11,014,738 312,921 312,921 0 0 0 0 0 312,921 0 (92,626) (92,626) 0 07/01/2031 6. 57586P-Y5-9 MASSACHUSETTS ST HSG FIN AGY HSG REV 01/15/2021 Call @ 100.00 10,000 10,000 10,159 10,068 0 (2) 0 (2) 0 10,066 0 (66) (66) 23 06/01/2034 1.B FE 60416Q-FT-6 MINNESOTA ST HSG FIN AGY HOMEOWNERSHIP F 03/01/2021 Paydown 61,579 61,579 61,579 61,579 0 0 0 0 0 61,579 0 0 0 198 09/01/2042 1.A FE 60416Q-GK-4 MINNESOTA ST HSG FIN AGY HOMEOWNERSHIP F 03/01/2021 Call @ 100.00 139,306 139,306 139,306 137,826 0 2 0 2 0 137,828 0 1,478 1,478 521 08/01/2046 1.A FE 60416Q-HX-5 MINNESOTA ST HSG FIN AGY HOMEOWNERSHIP F 03/01/2021 Call @ 100.00 165,312 165,312 165,312 165,312 0 0 0 0 0 165,312 0 0 0 712 06/01/2050 1.A FE 60416Q-HY-3 MINNESOTA ST HSG FIN AGY HOMEOWNERSHIP F 03/01/2021 Redemption @ 100.00 380,777 380,777 380,777 380,777 0 0 0 0 0 380,777 0 0 0 1,245 09/01/2050 1.A FE 60416Q-HZ-0 MINNESOTA ST HSG FIN AGY HOMEOWNERSHIP F 03/01/2021 Redemption @ 100.00 21,125 21,125 21,125 21,125 0 0 0 0 0 21,125 0 0 0 67 12/01/2050 1.A FE 60637B-B6-6 MISSOURI ST HSG DEV COMMN SINGLE FAMILY 03/01/2021 Redemption @ 100.00 32,247 32,247 32,247 32,247 0 0 0 0 0 32,247 0 0 0 79 11/01/2050 1.B FE 612127-TR-1 MONTANA ST COAL SEVERANCE TAX 01/22/2021 Call @ 100.00 820,000 820,000 820,000 820,000 0 0 0 0 0 820,000 0 0 0 5,639 12/01/2024 1.D FE 641279-NX-8 NEVADA HSG DIV SINGLE FAMILY MTG REV 03/01/2021 Paydown 198,633 198,633 198,633 198,633 0 0 0 0 0 198,633 0 0 0 614 11/01/2044 1.B FE 64469D-B6-7 NEW HAMPSHIRE ST HSG FIN AUTH SINGLE FAM 03/01/2021 Call @ 100.00 65,000 65,000 65,000 65,000 0 0 0 0 0 65,000 0 0 0 1,083 01/01/2040 1.C FE 64469D-VB-4 NEW HAMPSHIRE ST HSG FIN AUTH SINGLE FAM 02/01/2021 Call @ 100.00 65,000 65,000 65,000 65,000 0 0 0 0 0 65,000 0 0 0 1,126 01/01/2023 1.C FE 64469D-VN-8 NEW HAMPSHIRE ST HSG FIN AUTH SINGLE FAM 02/01/2021 Call @ 100.00 40,000 40,000 40,000 40,000 0 0 0 0 0 40,000 0 0 0 734 01/01/2024 1.C FE 658207-MA-0 NORTH CAROLINA HSG FIN AGY HOMEOWNERSHIP 03/01/2021 Call @ 100.00 135,000 135,000 135,000 135,000 0 0 0 0 0 135,000 0 0 0 2,701 01/01/2030 1.B FE 677377-2P-7 OHIO HSG FIN AGY SINGLE FAMILY MTG REV 03/01/2021 Call @ 100.00 70,000 70,000 70,000 70,000 0 0 0 0 0 70,000 0 0 0 320 11/01/2041 1.A FE 684907-WN-4 ORANGE CNTY FLA HSG FIN AUTH HOMEOWNER R 03/01/2021 Call @ 100.00 59,350 59,350 59,350 59,350 0 0 0 0 0 59,350 0 0 0 91 09/01/2050 1.A FE 88045R-WH-1 TENNESSEE HSG DEV AGY 01/05/2021 Call @ 100.00 335,000 335,000 347,137 335,000 0 0 0 0 0 335,000 0 0 0 7,538 07/01/2031 1.B FE 88275F-SH-3 TEXAS ST DEPT HSG & CMNTY AFFAIRS SINGLE 03/01/2021 Redemption @ 100.00 52,519 52,519 52,519 52,519 0 0 0 0 0 52,519 0 0 0 189 03/01/2036 1.B FE 92812U-LT-3 VIRGINIA ST HSG DEV AUTH COMWLTH MTG - C 03/01/2021 Paydown 38,199 38,199 38,495 38,526 0 (327) 0 (327) 0 38,199 0 0 0 308 06/25/2034 1.A FE 92813T-EE-6 VIRGINIA ST HSG DEV AUTH HOMEOWNERSHIP M 03/01/2021 Paydown 107,005 107,005 103,246 103,263 0 3,742 0 3,742 0 107,005 0 0 0 565 08/25/2042 1.B FE 3199999. Subtotal - Bonds - U.S. Special Revenues 161,854,878 171,329,416 164,124,436 163,320,376 0 (604,704) 0 (604,704) 0 162,875,547 0 (1,020,669) (1,020,669) 1,099,727 XXX XXX 00081T-AJ-7 ACCO BRANDS CORP 03/31/2021 Call @ 100.00 1,334,125 1,300,000 1,304,063 1,301,776 0 (100) 0 (100) 0 1,301,676 0 (1,676) (1,676) 54,221 12/15/2024 4.A FE 00206R-CQ-3 AT&T INC 02/04/2021 SALOMON BROTHERS INC 1,040,248 880,000 894,389 894,488 0 (41) 0 (41) 0 894,447 0 145,801 145,801 9,637 05/15/2046 2.B FE WELLS FARGO SECURITIES 00507V-AP-4 ACTIVISION BLIZZARD INC 02/24/2021 LLC 5,250,280 5,600,000 5,443,688 3,121,318 0 1,763 0 1,763 0 5,448,082 0 (197,802) (197,802) 41,160 09/15/2030 2.A FE 00839#-AD-5 ADVANTAGE CAPITAL 2014 NATIONAL TAX CRED 03/01/2021 Paydown 37,417 37,417 29,340 36,859 0 558 0 558 0 37,417 0 0 0 0 05/15/2021 1.C 00841#-AA-7 ADVANTAGE CAPITAL 2015 STATE TAX CREDIT 03/01/2021 Paydown 25,000 25,000 18,971 23,426 0 1,574 0 1,574 0 25,000 0 0 0 0 05/15/2023 1.D FE 00841#-AC-3 ADVANTAGE CAPITAL 2015 STATE TAX CREDIT 03/01/2021 Paydown 300,000 300,000 225,023 285,579 0 14,421 0 14,421 0 300,000 0 0 0 0 05/15/2022 1.D FE 013093-AD-1 ALBERTSONS COMPANIES LLC 01/04/2021 Call @ 100.00 1,020,520 992,000 953,866 968,789 0 40 0 40 0 968,829 0 23,171 23,171 36,632 03/15/2025 4.A FE 02361D-AV-2 AMEREN ILLINOIS CO 02/25/2021 STC 2,284,632 2,400,000 2,395,592 2,395,635 0 66 0 66 0 2,395,701 0 (111,069) (111,069) 10,127 11/15/2030 1.F FE 02528B-AA-2 ACAR 2021-1 A - ABS 03/13/2021 Paydown 29,690 29,690 29,689 0 0 1 0 1 0 29,690 0 0 0 13 05/13/2024 1.A FE 03065D-AF-4 AMCAR 2016-3 C - ABS 01/26/2021 Paydown 88,105 88,105 86,863 88,094 0 11 0 11 0 88,105 0 0 0 164 04/08/2022 1.A FE STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE D - PART 4 Show All Long-Term Bonds and Stock Sold, Redeemed or Otherwise Disposed of During the Current Quarter 1 2 3 4 5 6 7 8 9 10 Change In Book/Adjusted Carrying Value 16 17 18 19 20 21 22 11 12 13 14 15 NAIC Desig- nation, NAIC Total Total Desig- Current Change in Foreign Bond nation Year's Book/ Exchange Book/ Interest/ Modifier Prior Year Current Other Than Adjusted Change in Adjusted Foreign Stock Stated and Book/ Unrealized Year's Temporary Carrying Book Carrying Exchange Realized Dividends Con- SVO CUSIP Number of Adjusted Valuation (Amor- Impairment Value /Adjusted Value at Gain Gain Total Gain Received tractual Admini- Ident- For- Disposal Name Shares of Consid- Actual Carrying Increase/ tization)/ Recog- (11 + 12 - Carrying Disposal (Loss) on (Loss) on (Loss) on During Maturity strative ification Description eign Date of Purchaser Stock eration Par Value Cost Value (Decrease) Accretion nized 13) Value Date Disposal Disposal Disposal Year Date Symbol JP Morgan Securities LLC 03674X-AF-3 ANTERO RESOURCES CORP 03/23/2021 700,875 700,000 280,000 280,000 0 0 0 0 0 280,000 0 420,875 420,875 12,469 06/01/2023 4.B FE 038779-AB-0 ARBYS 2020-1 A2 - RMBS 01/30/2021 Paydown 10,000 10,000 10,065 10,069 0 (69) 0 (69) 0 10,000 0 0 0 81 08/01/2050 2.C FE 03969A-AL-4 ARDAGH PACKAGING FINANCE PLC C 02/25/2021 R. W. PRESSPRICH 512,120 496,000 492,000 493,255 0 94 0 94 0 493,349 0 18,771 18,771 16,203 02/15/2025 4.B FE 04273W-AB-7 ARROW ELECTRONICS INC 03/01/2021 Maturity @ 100.00 450,000 450,000 482,832 450,730 0 (730) 0 (730) 0 450,000 0 0 0 11,531 03/01/2021 2.C FE 05252A-BK-6 AUSTRALIA AND NEW ZEALAND BANKING GROUP C 01/12/2021 Maturity @ 100.00 6,950,000 6,950,000 6,997,264 6,951,649 0 (1,649) 0 (1,649) 0 6,950,000 0 0 0 169,406 01/12/2021 1.D FE 06540Y-AC-3 BANK 2020-BNK28 A3 - CMBS 03/09/2021 WFM 6,896,250 7,200,000 7,271,669 7,269,782 0 (1,454) 0 (1,454) 0 7,268,328 0 (372,078) (372,078) 31,680 03/15/2063 1.D FM 08162W-BB-1 BMARK 2020-B19 A4 - CMBS 03/09/2021 CMG 7,737,500 8,000,000 8,079,603 8,077,226 0 (1,830) 0 (1,830) 0 8,075,396 0 (337,896) (337,896) 34,356 09/17/2053 1.D FM 08163A-AD-5 BMARK 2020-B18 A4 - CMBS 03/25/2021 WFM 7,652,500 8,000,000 8,079,415 8,075,927 0 (2,039) 0 (2,039) 0 8,073,888 0 (421,388) (421,388) 43,844 07/15/2053 1.D FM 085790-AY-9 BERRY GLOBAL INC 01/25/2021 Call @ 100.00 289,664 286,000 285,110 285,690 0 8 0 8 0 285,697 0 303 303 8,659 07/15/2023 3.B FE 08883@-AA-1 BOWLING GREEN KETUCKY CTL PASS-THROUGH T 03/15/2021 Paydown 24,369 24,368 24,368 24,368 0 0 0 0 0 24,368 0 0 0 218 06/15/2036 2.B 08884@-AA-0 BGS CTL PASS THROUGH TRUST SERIES 2012 ( 03/15/2021 Paydown 51,624 51,624 51,624 51,624 0 0 0 0 0 51,624 0 0 0 435 11/15/2033 2.B JP Morgan Securities LLC 09261B-AA-8 BLACKSTONE HOLDINGS FINANCE CO LLC 03/08/2021 3,265,220 3,500,000 3,493,595 3,493,741 0 106 0 106 0 3,493,847 0 (228,627) (228,627) 25,044 03/30/2031 1.E FE 097023-CW-3 BOEING CO 02/01/2021 BARCLAYS CAPITAL INC 1,688,215 1,275,000 1,275,000 1,275,000 0 0 0 0 0 1,275,000 0 413,215 413,215 18,915 05/01/2050 2.C FE

124857-AG-8 VIACOMCBS INC 03/15/2021 Call @ 100.00 5,659,775 5,500,000 5,409,735 5,487,774 0 2,072 0 2,072 0 5,489,846 0 10,154 10,154 259,806 03/01/2022 2.B FE E05.4 12527G-AG-8 CF INDUSTRIES INC 03/22/2021 Call @ 100.00 765,828 750,000 743,453 748,721 0 304 0 304 0 749,025 0 975 975 23,549 12/01/2021 2.C FE 12530M-AB-1 SORT 2020-1 A2 - ABS 03/15/2021 Paydown 3,798 3,798 3,797 3,797 0 2 0 2 0 3,798 0 0 0 11 07/15/2060 1.D FE 12634N-AS-7 CSAIL 2015-C2 A3 - CMBS 03/01/2021 Paydown 8,136 8,138 8,639 8,389 0 (251) 0 (251) 0 8,138 0 0 0 64 06/15/2057 1.D FM 126650-BP-4 CVSPAS 06 CRT - ABS 03/10/2021 Paydown 51,600 51,600 54,744 54,481 0 (2,881) 0 (2,881) 0 51,600 0 0 0 520 12/10/2028 2.B 131347-CK-0 CALPINE CORP 02/01/2021 Call @ 100.00 0 0 0 0 0 0 0 0 0 0 0 (10,505) (10,505) 0 06/01/2026 3.A FE 141781-BQ-6 CARGILL INC 03/30/2021 SALOMON BROTHERS INC 2,328,444 2,470,000 2,468,864 0 0 17 0 17 0 2,468,881 0 (140,436) (140,436) 6,882 02/02/2031 1.F FE 14314W-AD-3 CARMX 2017-3 A3 - ABS 03/15/2021 Paydown 155,437 155,437 153,342 155,304 0 133 0 133 0 155,437 0 0 0 441 04/15/2022 1.A FE 159864-AC-1 CHARLES RIVER LABORATORIES INTERNATIONAL 03/23/2021 Call @ 100.00 542,014 520,000 505,050 506,673 0 481 0 481 0 507,154 0 12,846 12,846 35,679 04/01/2026 3.B FE 16411Q-AB-7 CHENIERE ENERGY PARTNERS LP 03/29/2021 Call @ 100.00 615,750 600,000 599,250 599,508 0 22 0 22 0 599,530 0 470 470 31,150 10/01/2025 3.B FE 185899-AD-3 CLEVELAND-CLIFFS INC 03/12/2021 Call @ 100.00 2,579,700 2,500,000 2,000,000 2,071,325 0 13,217 0 13,217 0 2,084,542 0 415,458 415,458 144,778 10/15/2025 5.B FE 226373-AL-2 CRESTWOOD MIDSTREAM PARTNERS LP 01/21/2021 KEY CAPITAL MARKETS 831,930 825,000 462,165 462,165 0 0 0 0 0 462,165 0 369,765 369,765 15,755 04/01/2023 4.A FE WELLS FARGO SECURITIES 231021-AT-3 CUMMINS INC 03/02/2021 LLC 4,588,224 4,800,000 4,772,064 4,772,973 0 443 0 443 0 4,773,416 0 (185,192) (185,192) 38,000 09/01/2030 1.F FE 24704D-AE-0 DEFT 2018-2 A3 - ABS 03/22/2021 Paydown 472,427 472,427 472,354 472,419 0 8 0 8 0 472,427 0 0 0 2,701 10/23/2023 1.A FE 30251G-AU-1 FMG RESOURCES (AUGUST 2006) PTY LTD C 03/26/2021 Tender Offer 314,100 300,000 300,000 300,000 0 0 0 0 0 300,000 0 0 0 19,285 05/15/2022 3.A FE 30262D-AL-5 FREMF 2011-K13 B - CMBS 01/25/2021 Paydown 0 0 0 0 0 0 0 0 0 0 0 0 0 (35,781) 01/25/2048 1.D FM 307000-AA-7 FAMILY DOLLAR STORES INC 01/20/2021 Call @ 100.00 1,502,276 1,500,000 1,492,410 1,499,920 0 49 0 49 0 1,499,969 0 31 31 37,276 02/01/2021 2.B FE 31620M-BJ-4 FIDELITY NATIONAL INFORMATION SERVICES I 03/10/2021 Tender Offer 2,137,529 1,980,000 2,047,998 2,038,956 0 (1,203) 0 (1,203) 0 2,037,752 0 99,777 99,777 121,481 05/21/2029 2.B FE 35803Q-AA-5 FRESENIUS MEDICAL CARE US FINANCE INC 02/15/2021 Maturity @ 100.00 3,000,000 3,000,000 3,006,823 3,002,541 0 (2,541) 0 (2,541) 0 3,000,000 0 0 0 86,250 02/15/2021 2.C FE 36128#-AA-5 G & M PIER LEWISVILLE, LLC - ABS 03/01/2021 Paydown 33,868 33,868 33,591 33,853 0 15 0 15 0 33,868 0 0 0 243 01/15/2025 2.C 36250H-AD-5 GSMS 2014-GC26 A4 - CMBS 02/01/2021 Paydown 95,704 95,704 96,855 96,163 0 (459) 0 (459) 0 95,704 0 0 0 537 11/13/2047 1.D FM 36254M-AD-0 GMCAR 173 A3 - ABS 03/16/2021 Paydown 62,924 62,924 62,919 62,924 0 0 0 0 0 62,924 0 0 0 187 05/16/2022 1.A FE 36804P-AF-3 GATX CORP - ABS 01/02/2021 Paydown 89,210 89,210 89,211 89,206 0 4 0 4 0 89,210 0 0 0 4,077 01/02/2025 2.B FE JP Morgan Securities LLC 369550-BJ-6 GENERAL DYNAMICS CORP 03/18/2021 500,909 425,000 418,753 418,836 0 23 0 23 0 418,859 0 82,050 82,050 8,580 04/01/2050 1.F FE 37185L-AF-9 GENESIS ENERGY LP 01/04/2021 R. W. PRESSPRICH 634,563 650,000 455,000 455,000 0 0 0 0 0 455,000 0 179,563 179,563 2,133 06/15/2024 4.A FE 428041-BD-8 HFLF 181 A2 - ABS 03/10/2021 Paydown 66,456 66,456 66,445 66,625 0 (169) 0 (169) 0 66,456 0 0 0 360 05/10/2032 1.A FE 451102-BJ-5 ICAHN ENTERPRISES LP 02/01/2021 Call @ 100.00 746,000 746,000 761,514 746,473 0 (473) 0 (473) 0 746,000 0 0 0 23,313 02/01/2022 3.C FE 46124H-AD-8 INTUIT INC 02/26/2021 KEY CAPITAL MARKETS 3,910,120 4,000,000 4,002,664 4,002,549 0 (43) 0 (43) 0 4,002,507 0 (92,387) (92,387) 44,550 07/15/2030 1.G FE 46636V-AC-0 JPMCC 2011-C5 A3 - CMBS 03/01/2021 Paydown 194,129 194,129 198,482 194,781 0 (653) 0 (653) 0 194,129 0 0 0 2,024 08/17/2046 1.D FM 46637W-AD-5 JPMCC 2012-CIBX A4 - CMBS 03/01/2021 Paydown 268,687 268,687 274,060 268,829 0 (143) 0 (143) 0 268,687 0 0 0 2,221 06/16/2045 1.D FM 47837R-AA-8 JOHNSON CONTROLS INTERNATIONAL PLC C 03/31/2021 BARCLAYS CAPITAL INC 2,253,672 2,400,000 2,392,536 2,392,749 0 178 0 178 0 2,392,927 0 (139,255) (139,255) 23,800 09/15/2030 2.B FE 49326E-ED-1 KEYCORP 03/24/2021 Maturity @ 100.00 7,750,000 7,750,000 8,151,794 7,775,346 0 (25,346) 0 (25,346) 0 7,750,000 0 0 0 197,625 03/24/2021 2.A FE 494550-BC-9 KINDER MORGAN ENERGY PARTNERS LP 03/01/2021 Maturity @ 100.00 1,550,000 1,550,000 1,569,927 1,550,822 0 (822) 0 (822) 0 1,550,000 0 0 0 44,950 03/01/2021 2.B FE 546347-AK-1 LOUISIANA-PACIFIC CORP 03/29/2021 Various 1,957,163 1,910,000 1,883,120 1,896,054 0 722 0 722 0 1,896,776 0 28,083 28,083 79,904 09/15/2024 3.A FE 55616X-AL-1 MACY'S RETAIL HOLDINGS LLC 03/23/2021 SALOMON BROTHERS INC 2,225,647 2,250,000 1,489,793 1,588,422 0 31,641 0 31,641 0 1,620,063 0 605,585 605,585 75,838 06/01/2024 4.A FE 571676-AL-9 MARS INC 03/09/2021 Various 5,929,557 6,400,000 6,376,264 6,376,903 0 350 0 350 0 6,377,253 0 (447,696) (447,696) 67,889 07/16/2032 1.F FE 574754-AM-9 MASHANTUCKET (WESTERN) PEQUOT TRIBAL NAT 01/15/2021 Call @ 100.00 116 116 0 0 0 0 0 0 0 0 0 116 116 0 07/01/2036 6. * STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE D - PART 4 Show All Long-Term Bonds and Stock Sold, Redeemed or Otherwise Disposed of During the Current Quarter 1 2 3 4 5 6 7 8 9 10 Change In Book/Adjusted Carrying Value 16 17 18 19 20 21 22 11 12 13 14 15 NAIC Desig- nation, NAIC Total Total Desig- Current Change in Foreign Bond nation Year's Book/ Exchange Book/ Interest/ Modifier Prior Year Current Other Than Adjusted Change in Adjusted Foreign Stock Stated and Book/ Unrealized Year's Temporary Carrying Book Carrying Exchange Realized Dividends Con- SVO CUSIP Number of Adjusted Valuation (Amor- Impairment Value /Adjusted Value at Gain Gain Total Gain Received tractual Admini- Ident- For- Disposal Name Shares of Consid- Actual Carrying Increase/ tization)/ Recog- (11 + 12 - Carrying Disposal (Loss) on (Loss) on (Loss) on During Maturity strative ification Description eign Date of Purchaser Stock eration Par Value Cost Value (Decrease) Accretion nized 13) Value Date Disposal Disposal Disposal Year Date Symbol 58769L-AD-4 MBALT 2018-B A4 - ABS 03/15/2021 Paydown 3,275,000 3,275,000 3,274,788 3,274,979 0 21 0 21 0 3,275,000 0 0 0 26,708 07/15/2024 1.A FE 588056-AU-5 MERCER INTERNATIONAL INC C 02/16/2021 Call @ 100.00 1,778,438 1,750,000 1,581,500 1,602,511 0 3,935 0 3,935 0 1,606,446 0 143,554 143,554 89,104 02/01/2024 4.A FE 58933Y-AA-3 MERCK & CO INC 01/15/2021 Maturity @ 100.00 4,005,000 4,005,000 4,174,532 4,005,000 0 0 0 0 0 4,005,000 0 0 0 77,597 01/15/2021 1.E FE Imperial Capital Markets 594087-AV-0 MICHAELS STORES INC 03/09/2021 2,332,800 2,160,000 2,146,263 2,146,682 0 315 0 315 0 2,146,997 0 185,803 185,803 45,600 10/01/2027 4.A FE 59748T-AB-5 MIDLAND COGENERATION VENTURE LP 03/15/2021 Paydown 169,172 169,172 162,662 163,014 0 6,158 0 6,158 0 169,172 0 0 0 4,441 03/15/2025 3.C FE 609207-AX-3 MONDELEZ INTERNATIONAL INC 02/01/2021 J P MORGAN SECURITIES 2,326,392 2,400,000 2,382,496 2,382,981 0 138 0 138 0 2,383,119 0 (56,727) (56,727) 14,900 02/04/2031 2.B FE 61760R-BB-7 MSC 2011-C3 A4 - CMBS 03/01/2021 Paydown 401,849 401,849 425,892 402,532 0 (684) 0 (684) 0 401,849 0 0 0 3,596 07/16/2049 1.D FM 61761A-AY-4 MSBAM 2012-C5 A3 - CMBS 03/01/2021 Paydown 104,927 104,927 107,024 105,035 0 (108) 0 (108) 0 104,927 0 0 0 1,127 08/17/2045 1.D FM 61763M-AE-0 MSBAM 2014-C16 A4 - CMBS 02/01/2021 Paydown 4,758 4,758 4,805 4,769 0 (12) 0 (12) 0 4,758 0 0 0 29 06/17/2047 1.D FM 61764P-BT-8 MSBAM 2014-C19 A3 - CMBS 03/01/2021 Paydown 47,774 47,774 48,248 47,948 0 (174) 0 (174) 0 47,774 0 0 0 388 12/17/2047 1.D FM 63254A-AZ-1 NATIONAL AUSTRALIA BANK LTD (NEW YORK BR 03/26/2021 RBC CAPITAL MARKETS 1,801,110 1,775,000 1,771,326 1,774,160 0 282 0 282 0 1,774,442 0 26,668 26,668 31,617 09/20/2021 1.D FE 71427Q-AB-4 PERNOD RICARD INTERNATIONAL FINANCE LLC 02/25/2021 SALOMON BROTHERS INC 3,773,120 4,000,000 3,966,320 3,967,063 0 477 0 477 0 3,967,540 0 (194,420) (194,420) 27,083 04/01/2031 2.A FE 737446-AK-0 POST HOLDINGS INC 03/11/2021 Call @ 100.00 1,931,012 1,850,000 1,812,875 1,825,345 0 711 0 711 0 1,826,055 0 23,945 23,945 133,942 08/15/2026 4.B FE WELLS FARGO SECURITIES

74256L-EG-0 PRINCIPAL LIFE GLOBAL FUNDING II 03/02/2021 LLC 3,799,960 4,000,000 3,979,720 3,980,340 0 321 0 321 0 3,980,661 0 (180,701) (180,701) 31,167 08/27/2030 1.E FE E05.5 756109-AN-4 REALTY INCOME CORP 01/08/2021 Call @ 100.00 5,248,258 5,000,000 5,088,650 5,031,005 0 (379) 0 (379) 0 5,030,626 0 (30,626) (30,626) 285,723 10/15/2022 1.G FE 760759-AX-8 REPUBLIC SERVICES INC 02/24/2021 FIRST BOSTON 4,197,413 4,465,000 4,393,962 4,396,053 0 957 0 957 0 4,397,010 0 (199,597) (199,597) 33,450 02/15/2031 2.B FE 776743-AL-0 ROPER TECHNOLOGIES INC 03/31/2021 RBC CAPITAL MARKETS 3,625,557 3,900,000 3,889,911 3,890,020 0 237 0 237 0 3,890,257 0 (264,700) (264,700) 40,571 02/15/2031 2.A FE 78388J-AV-8 SBA COMMUNICATIONS CORP 03/11/2021 SALOMON BROTHERS INC 1,600,560 1,560,000 1,522,941 1,535,905 0 1,194 0 1,194 0 1,537,100 0 63,460 63,460 40,983 09/01/2024 4.A FE 80105N-AG-0 SANOFI SA C 03/29/2021 Maturity @ 100.00 1,000,000 1,000,000 989,760 999,710 0 290 0 290 0 1,000,000 0 0 0 20,000 03/29/2021 1.E FE 80281L-AD-7 SANTANDER UK GROUP HOLDINGS PLC C 01/08/2021 Maturity @ 100.00 425,000 425,000 424,571 424,998 0 2 0 2 0 425,000 0 0 0 6,641 01/08/2021 2.A FE 80284R-AG-4 SDART 2016-3 D - ABS 03/15/2021 Paydown 1,234,603 1,234,603 1,220,569 1,233,282 0 1,321 0 1,321 0 1,234,603 0 0 0 7,598 08/15/2022 1.A FE 81745B-AA-3 SEMT 2013-6 A1 - CMO/RMBS 03/01/2021 Paydown 287,234 287,234 285,038 286,240 0 993 0 993 0 287,234 0 0 0 1,242 05/26/2043 1.D FM 81762P-AE-2 SERVICENOW INC 02/24/2021 RBC CAPITAL MARKETS 5,779,522 6,204,000 6,079,358 6,081,849 0 1,819 0 1,819 0 6,083,668 0 (304,146) (304,146) 47,047 09/01/2030 2.A FE MITSUBISHI UFJ 832696-AS-7 J M SMUCKER CO 03/31/2021 SECURITIES 3,949,680 4,000,000 4,198,640 4,192,100 0 (5,125) 0 (5,125) 0 4,186,975 0 (237,295) (237,295) 52,778 03/15/2030 2.B FE 83546D-AJ-7 SONIC 2020-1 A22 - RMBS 03/20/2021 Paydown 8,000 8,000 8,000 8,000 0 0 0 0 0 8,000 0 0 0 58 01/20/2050 2.B FE 85208N-AA-8 SPRNTS 161 A1 - ABS 03/20/2021 Paydown 62,500 62,500 62,499 62,500 0 0 0 0 0 62,500 0 0 0 525 03/20/2023 2.A FE 857477-AG-8 STATE STREET CORP 03/07/2021 Maturity @ 100.00 5,000,000 5,000,000 5,050,060 5,008,862 0 (8,862) 0 (8,862) 0 5,000,000 0 0 0 109,375 03/07/2021 1.F FE 86203#-AA-8 STONEHENGE CAPITAL FUND CONNECTICUT IV L 03/15/2021 Paydown 39,300 39,300 39,300 39,300 0 0 0 0 0 39,300 0 0 0 786 12/15/2025 1.G JP Morgan Securities LLC 86562M-CE-8 SUMITOMO MITSUI FINANCIAL GROUP INC C 03/08/2021 1,496,224 1,600,000 1,604,688 0 0 (68) 0 (68) 0 1,604,620 0 (108,396) (108,396) 4,408 01/12/2031 1.G FE 86614W-AD-8 SUMMIT MIDSTREAM HOLDINGS LLC 01/26/2021 RBC CAPITAL MARKETS 324,000 400,000 44,000 44,000 0 0 0 0 0 44,000 0 280,000 280,000 6,581 04/15/2025 5.B FE 87233Q-AA-6 TC PIPELINES LP 03/15/2021 Call @ 100.00 5,146,000 5,146,000 5,304,960 5,150,940 0 (4,940) 0 (4,940) 0 5,146,000 0 0 0 60,487 06/15/2021 2.B FE 883203-BT-7 TEXTRON INC 03/01/2021 Maturity @ 100.00 4,950,000 4,950,000 5,033,083 4,953,337 0 (3,337) 0 (3,337) 0 4,950,000 0 0 0 90,338 03/01/2021 2.B FE 893647-AX-5 TRANSDIGM INC 02/16/2021 Call @ 100.00 1,016,250 1,000,000 954,790 952,292 0 (655) 0 (655) 0 951,637 0 48,363 48,363 53,986 07/15/2024 4.C FE WELLS FARGO SECURITIES 89641U-AD-3 TRINITY ACQUISITION PLC C 03/18/2021 LLC 961,286 950,000 948,784 949,840 0 50 0 50 0 949,890 0 11,396 11,396 17,272 09/15/2021 2.B FE 897051-AA-6 TRONOX INC 03/31/2021 Call @ 100.00 1,448,708 1,400,000 1,329,400 1,341,200 0 2,228 0 2,228 0 1,343,428 0 56,572 56,572 90,670 04/15/2026 4.C FE 92348X-AA-3 VZOT 2018-A A1A - RMBS 03/20/2021 Paydown 948,001 948,001 948,839 948,165 0 (163) 0 (163) 0 948,001 0 0 0 4,784 04/20/2023 1.A FE 92936J-BB-9 WFRBS 2011-C5 A4 - CMBS 03/01/2021 Paydown 134,310 134,310 135,745 134,228 0 82 0 82 0 134,310 0 0 0 826 11/18/2044 1.D FM 92936Q-AG-3 WFRBS 2012-C6 A4 - CMBS 03/01/2021 Paydown 125,212 125,212 126,458 125,158 0 54 0 54 0 125,212 0 0 0 743 04/17/2045 1.D FM 92938C-AE-7 WFRBS 2013-C15 ASB - CMBS 03/01/2021 Paydown 97,257 97,257 100,259 98,054 0 (797) 0 (797) 0 97,257 0 0 0 906 08/17/2046 1.D FM 92938E-AM-5 WFRBS 2013-C16 A4 - CMBS 02/01/2021 Paydown 49,721 49,721 50,216 49,832 0 (111) 0 (111) 0 49,721 0 0 0 343 09/17/2046 1.D FM JP Morgan Securities LLC 94106L-BP-3 WASTE MANAGEMENT INC 02/03/2021 1,546,416 1,600,000 1,596,208 1,596,247 0 30 0 30 0 1,596,277 0 (49,861) (49,861) 5,200 03/15/2031 2.A FE 94978#-AQ-0 WELLS FARGO TRUST COMPANY, NATIONAL ASSO 03/01/2021 Paydown 16,771 16,862 16,260 16,750 0 113 0 113 0 16,862 0 (91) (91) 185 08/01/2022 1.C 94989T-AY-0 WFCM 2015-LC22 A3 - CMBS 01/01/2021 Paydown 429,895 429,895 434,173 431,930 0 (2,035) 0 (2,035) 0 429,895 0 0 0 4,419 09/17/2058 1.D FM 94989W-AT-4 WFCM 2015-C31 ASB - CMBS 03/01/2021 Paydown 111,703 111,703 115,053 112,786 0 (1,083) 0 (1,083) 0 111,703 0 0 0 671 11/18/2048 1.D FM 95000L-AY-9 WFCM 2016-C33 A3 - CMBS 03/01/2021 Paydown 386,383 386,383 385,376 385,105 0 1,278 0 1,278 0 386,383 0 0 0 1,694 03/17/2059 1.D FM 95081Q-AK-0 WESCO DISTRIBUTION INC 01/14/2021 Call @ 100.00 4,000,000 4,000,000 4,005,059 3,998,497 0 55 0 55 0 3,998,553 0 1,447 1,447 17,319 12/15/2021 3.C FE 97063P-AB-0 WILLIS TOWERS WATSON PLC C 03/15/2021 Maturity @ 100.00 2,750,000 2,750,000 2,812,535 2,751,671 0 (1,671) 0 (1,671) 0 2,750,000 0 0 0 79,063 03/15/2021 2.B FE 98162C-AD-3 WOLS 2018-B A3 - ABS 03/15/2021 Paydown 369,195 369,195 369,166 369,193 0 2 0 2 0 369,195 0 0 0 2,045 12/15/2021 1.A FE STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE D - PART 4 Show All Long-Term Bonds and Stock Sold, Redeemed or Otherwise Disposed of During the Current Quarter 1 2 3 4 5 6 7 8 9 10 Change In Book/Adjusted Carrying Value 16 17 18 19 20 21 22 11 12 13 14 15 NAIC Desig- nation, NAIC Total Total Desig- Current Change in Foreign Bond nation Year's Book/ Exchange Book/ Interest/ Modifier Prior Year Current Other Than Adjusted Change in Adjusted Foreign Stock Stated and Book/ Unrealized Year's Temporary Carrying Book Carrying Exchange Realized Dividends Con- SVO CUSIP Number of Adjusted Valuation (Amor- Impairment Value /Adjusted Value at Gain Gain Total Gain Received tractual Admini- Ident- For- Disposal Name Shares of Consid- Actual Carrying Increase/ tization)/ Recog- (11 + 12 - Carrying Disposal (Loss) on (Loss) on (Loss) on During Maturity strative ification Description eign Date of Purchaser Stock eration Par Value Cost Value (Decrease) Accretion nized 13) Value Date Disposal Disposal Disposal Year Date Symbol 3899999. Subtotal - Bonds - Industrial and Miscellaneous (Unaffiliated) 185,980,317 188,517,354 186,434,405 179,336,916 0 18,287 0 18,287 0 185,783,443 0 (644,350) (644,350) 3,466,882 XXX XXX 8399997. Total - Bonds - Part 4 358,100,587 370,185,171 361,001,471 351,494,171 0 (586,243) 0 (586,243) 0 358,977,938 0 (1,718,575) (1,718,575) 4,698,908 XXX XXX 8399998. Total - Bonds - Part 5 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX 8399999. Total - Bonds 358,100,587 370,185,171 361,001,471 351,494,171 0 (586,243) 0 (586,243) 0 358,977,938 0 (1,718,575) (1,718,575) 4,698,908 XXX XXX 8999997. Total - Preferred Stocks - Part 4 0 XXX 0 0 0 0 0 0 0 0 0 0 0 0 XXX XXX 8999998. Total - Preferred Stocks - Part 5 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX 8999999. Total - Preferred Stocks 0 XXX 0 0 0 0 0 0 0 0 0 0 0 0 XXX XXX Fidelity Capital Markets 00287Y-10-9 ABBVIE ORD 02/17/2021 3,400.000 361,212 180,731 364,310 (183,579) 0 0 (183,579) 0 180,731 0 180,481 180,481 4,420 Fidelity Capital Markets 018802-10-8 ALLIANT ENERGY ORD 02/05/2021 27,365.000 1,351,518 610,137 1,410,118 (799,981) 0 0 (799,981) 0 610,137 0 741,381 741,381 11,014 Fidelity Capital Markets 233331-10-7 DTE ENERGY ORD 01/26/2021 21,281.000 2,603,378 1,354,358 2,583,726 (1,229,369) 0 0 (1,229,369) 0 1,354,358 0 1,249,021 1,249,021 23,090 Fidelity Capital Markets

E05.6 277432-10-0 EASTMAN CHEMICAL ORD 01/05/2021 3,040.000 310,702 240,058 304,851 (64,794) 0 0 (64,794) 0 240,058 0 70,644 70,644 2,098 Fidelity Capital Markets 30040W-10-8 EVERSOURCE ENERGY ORD 03/23/2021 14,950.000 1,234,963 691,280 1,293,325 (602,044) 0 0 (602,044) 0 691,280 0 543,683 543,683 9,007 Fidelity Capital Markets 372460-10-5 GENUINE PARTS ORD 03/26/2021 4,392.000 514,040 386,961 441,089 (54,128) 0 0 (54,128) 0 386,961 0 127,080 127,080 3,470 Fidelity Capital Markets 418056-10-7 HASBRO ORD 03/05/2021 22,775.000 2,144,501 1,877,547 2,130,374 (252,826) 0 0 (252,826) 0 1,877,547 0 266,954 266,954 15,487 Fidelity Capital Markets 457187-10-2 INGREDION ORD 03/16/2021 2,960.000 271,543 239,759 232,863 6,896 0 0 6,896 0 239,759 0 31,784 31,784 1,894 Fidelity Capital Markets 458140-10-0 INTEL ORD 01/05/2021 15,536.000 785,341 737,814 774,004 (36,189) 0 0 (36,189) 0 737,814 0 47,526 47,526 0 Fidelity Capital Markets 487836-10-8 KELLOGG ORD 03/24/2021 9,750.000 603,493 615,220 606,743 8,477 0 0 8,477 0 615,220 0 (11,727) (11,727) 5,558 Fidelity Capital Markets 494368-10-3 KIMBERLY CLARK ORD 03/08/2021 1,400.000 185,695 183,404 0 0 0 0 0 0 183,404 0 2,291 2,291 0 Fidelity Capital Markets 670346-10-5 NUCOR ORD 03/30/2021 22,400.000 1,599,712 1,080,824 1,191,456 (110,632) 0 0 (110,632) 0 1,080,824 0 518,888 518,888 9,072 Fidelity Capital Markets 717081-10-3 PFIZER ORD 02/17/2021 6,000.000 208,735 202,194 220,860 (18,666) 0 0 (18,666) 0 202,194 0 6,541 6,541 2,340 Fidelity Capital Markets 91913Y-10-0 VALERO ENERGY ORD 02/17/2021 5,760.000 391,448 325,843 325,843 0 0 0 0 0 325,843 0 65,605 65,605 5,645 Fidelity Capital Markets 96145D-10-5 WESTROCK ORD 03/01/2021 41,230.000 1,837,973 1,630,000 1,794,742 (164,742) 0 0 (164,742) 0 1,630,000 0 207,973 207,973 8,246 9099999. Subtotal - Common Stocks - Industrial and Miscellaneous (Unaffiliated) Publicly Traded 14,404,254 XXX 10,356,129 13,674,303 (3,501,578) 0 0 (3,501,578) 0 10,356,129 0 4,048,124 4,048,124 101,341 XXX XXX 9799997. Total - Common Stocks - Part 4 14,404,254 XXX 10,356,129 13,674,303 (3,501,578) 0 0 (3,501,578) 0 10,356,129 0 4,048,124 4,048,124 101,341 XXX XXX 9799998. Total - Common Stocks - Part 5 XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX 9799999. Total - Common Stocks 14,404,254 XXX 10,356,129 13,674,303 (3,501,578) 0 0 (3,501,578) 0 10,356,129 0 4,048,124 4,048,124 101,341 XXX XXX 9899999. Total - Preferred and Common Stocks 14,404,254 XXX 10,356,129 13,674,303 (3,501,578) 0 0 (3,501,578) 0 10,356,129 0 4,048,124 4,048,124 101,341 XXX XXX 9999999 - Totals 372,504,840 XXX 371,357,600 365,168,474 (3,501,578) (586,243) 0 (4,087,821) 0 369,334,067 0 2,329,550 2,329,550 4,800,249 XXX XXX STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY

Schedule DB - Part A - Section 1 - Options, Caps, Floors, Collars, Swaps and Forwards Open N O N E

Schedule DB - Part B - Section 1 - Futures Contracts Open N O N E

Schedule DB - Part B - Section 1B - Brokers with whom cash deposits have been made N O N E

Schedule DB - Part D - Section 1 - Counterparty Exposure for Derivative Instruments Open N O N E

Schedule DB - Part D-Section 2 - Collateral for Derivative Instruments Open - Pledged By N O N E

Schedule DB - Part D-Section 2 - Collateral for Derivative Instruments Open - Pledged To N O N E

Schedule DB - Part E - Derivatives Hedging Variable Annuity Guarantees N O N E

Schedule DL - Part 1 - Reinvested Collateral Assets Owned N O N E

Schedule DL - Part 2 - Reinvested Collateral Assets Owned N O N E

E06, E07, E08, E09, E10, E11, E12 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE E - PART 1 - CASH Month End Depository Balances 1 2 3 4 5 Book Balance at End of Each Month 9 During Current Quarter Amount of Amount of 6 7 8 Interest Received Interest Accrued Rate of During Current at Current Depository Code Interest Quarter Statement Date First Month Second Month Third Month * Federal Home Loan Bank Boston, MA 0.000 0 0 1,107,089 1,106,866 1,116,655 XXX Deutsche Bank Trust Co Americas New York, NY 0.000 0 0 (33,669,652) (57,642,261) (63,773,664) XXX Chase Manhattan Bank New York, NY 0.000 0 0 483,993 483,993 483,993 XXX Wells Fargo Bank N.A. San Francisco, CA 0.000 0 0 4,408,867 5,243,143 5,130,203 XXX BB&T Bank Winston Salem, NC 0.000 0 0 9,233,106 9,713,280 706,255 XXX PNC Bank Pittsburgh, PA 0.000 0 0 41,633,159 24,064,129 (11,439,358) XXX Bank of NY Mellon New York, NY 0.000 0 0 5,332,665 2,119,282 9,929,292 XXX Fifth Third Bank Cincinnati, OH 0.000 0 0 1,230,603 1,230,603 1,403,254 XXX Bank of America Charlotte, NC 0.000 0 0 (8,991,495) (7,663,711) (2,510,457) XXX 0199998. Deposits in ... 0 depositories that do not exceed the allowable limit in any one depository (See instructions) - Open Depositories XXX XXX 0 0 0 0 0 XXX 0199999. Totals - Open Depositories XXX XXX 0 0 20,768,335 (21,344,676) (58,953,827) XXX 0299998. Deposits in ... 0 depositories that do not exceed the allowable limit in any one depository (See instructions) - Suspended Depositories XXX XXX 0 0 0 0 0 XXX 0299999. Totals - Suspended Depositories XXX XXX 0 0 0 0 0 XXX 0399999. Total Cash on Deposit XXX XXX 0 0 20,768,335 (21,344,676) (58,953,827) XXX 0499999. Cash in Company's Office XXX XXX XXX XXX 0 0 0 XXX

0599999. Total - Cash XXX XXX 0 0 20,768,335 (21,344,676) (58,953,827) XXX

E13 STATEMENT AS OF MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY SCHEDULE E - PART 2 - CASH EQUIVALENTS Show Investments Owned End of Current Quarter 1 2 3 4 5 6 7 8 9 Book/Adjusted Amount of Interest Amount Received CUSIP Description Code Date Acquired Rate of Interest Maturity Date Carrying Value Due and Accrued During Year 0599999. Total - U.S. Government Bonds 0 0 0 1099999. Total - All Other Government Bonds 0 0 0 1799999. Total - U.S. States, Territories and Possessions Bonds 0 0 0 2499999. Total - U.S. Political Subdivisions Bonds 0 0 0 3199999. Total - U.S. Special Revenues Bonds 0 0 0 3899999. Total - Industrial and Miscellaneous (Unaffiliated) Bonds 0 0 0 4899999. Total - Hybrid Securities 0 0 0 5599999. Total - Parent, Subsidiaries and Affiliates Bonds 0 0 0 6099999. Subtotal - SVO Identified Funds 0 0 0 6599999. Subtotal - Unaffiliated Bank Loans 0 0 0 7699999. Total - Issuer Obligations 0 0 0 7799999. Total - Residential Mortgage-Backed Securities 0 0 0 7899999. Total - Commercial Mortgage-Backed Securities 0 0 0 7999999. Total - Other Loan-Backed and Structured Securities 0 0 0 8099999. Total - SVO Identified Funds 0 0 0 8199999. Total - Affiliated Bank Loans 0 0 0 8299999. Total - Unaffiliated Bank Loans 0 0 0 8399999. Total Bonds 0 0 0 09248U-70-0 BLKRK LQ:FEDFUND INSTL 03/01/2021 0.040 85,268 2 5 857492-70-6 SS INST INV:US GV MM PRM 01/01/2021 0.040 444 0 0 8699999. Subtotal - All Other Money Market Mutual Funds 85,711 2 5

E14

9999999 - Total Cash Equivalents 85,711 2 5 *22292202150500101* SUPPLEMENT FOR THE QUARTER ENDING MARCH 31, 2021 OF THE HANOVER INSURANCE COMPANY DIRECTOR AND OFFICER INSURANCE COVERAGE SUPPLEMENT Year To Date For The Period Ended MARCH 31, 2021

NAIC Group Code 0088 NAIC Company Code 22292

Company Name HANOVER INSURANCE COMPANY

If the reporting entity writes any director and officer (D&O) business, please provide the following:

1. Monoline Policies

1 2 3 Direct Written Direct Earned Direct Losses Premium Premium Incurred $ 6,629,046 $ 5,837,785 $ (125,899)

2. Commercial Multiple Peril (CMP) Packaged Policies

2.1 Does the reporting entity provide D&O liability coverage as part of a CMP packaged policy? Yes [ X ] No [ ] 2.2 Can the direct premium earned for D&O liability coverage provided as part of a CMP packaged policy be quantified or estimated? Yes [ X ] No [ ] 2.3 If the answer to question 2.2 is yes, provide the quantified or estimated direct premium earned amount for D&O liability coverage in CMP packaged policies 2.31 Amount quantified: $ 15,625 2.32 Amount estimated using reasonable assumptions: $ 0 2.4 If the answer to question 2.1 is yes, provide direct losses incurred (losses paid plus change in case reserves) for the D&O liability coverage provided in CMP packaged policies. $ 0

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