ANNUAL INFORMATION FORM FOR HYDRO ONE LIMITED FOR THE YEAR ENDED DECEMBER 31, 2020 February 25, 2021 TABLE OF CONTENTS GLOSSARY ................................................................................................................................................ 1 PRESENTATION OF INFORMATION .................................................................................................. 7 FORWARD-LOOKING INFORMATION .............................................................................................. 8 ELECTRICITY INDUSTRY OVERVIEW ........................................................................................... 13 General Overview ................................................................................................................................... 13 Overview of an Electricity System ......................................................................................................... 13 THE ELECTRICITY INDUSTRY IN ONTARIO ................................................................................ 14 Regulation of Transmission and Distribution ......................................................................................... 14 Transmission ........................................................................................................................................... 16 Distribution ............................................................................................................................................. 16 Issues Affecting the Electricity Industry Generally ................................................................................ 17 Legislative Provisions Specific to Hydro One ........................................................................................ 19 Elimination of Certain Legislation With Respect to Hydro One ............................................................ 20 Cybersecurity .......................................................................................................................................... 20 Exemptive Relief .................................................................................................................................... 21 RATE-REGULATED UTILITIES ......................................................................................................... 22 Rate Applications in Ontario................................................................................................................... 22 CORPORATE STRUCTURE ................................................................................................................. 22 Incorporation and Office ......................................................................................................................... 22 Corporate Structure and Subsidiaries ...................................................................................................... 24 GENERAL DEVELOPMENT OF THE BUSINESS ............................................................................ 25 Chronological Development of the Business .......................................................................................... 25 General Development of the Business .................................................................................................... 34 BUSINESS OF HYDRO ONE ................................................................................................................. 35 Segments ................................................................................................................................................. 35 Transmission Business Segment ............................................................................................................. 36 Distribution Business Segment ............................................................................................................... 43 Other Segment ........................................................................................................................................ 49 Indigenous Communities ........................................................................................................................ 50 Outsourced Services ................................................................................................................................ 51 Employees ............................................................................................................................................... 51 Health, Safety and Environmental Management .................................................................................... 52 Environmental Regulation ...................................................................................................................... 53 Insurance ................................................................................................................................................. 54 Ombudsman ............................................................................................................................................ 54 i RISK FACTORS ....................................................................................................................................... 55 DIVIDENDS .............................................................................................................................................. 55 Dividend Policy ...................................................................................................................................... 56 Dividend Reinvestment Plan ................................................................................................................... 56 DESCRIPTION OF CAPITAL STRUCTURE ...................................................................................... 56 General Description of Capital Structure ................................................................................................ 56 Common Shares ...................................................................................................................................... 56 Preferred Shares ...................................................................................................................................... 57 CREDIT RATINGS .................................................................................................................................. 59 MARKET FOR SECURITIES ................................................................................................................ 60 Prior Sales ............................................................................................................................................... 60 Trading Price and Volume ...................................................................................................................... 60 DIRECTORS AND OFFICERS .............................................................................................................. 61 Directors and Executive Officers ............................................................................................................ 61 Information Regarding Certain Directors and Executive Officers .......................................................... 70 Corporate Cease Trade Orders and Bankruptcies ................................................................................... 70 Penalties or Sanctions ............................................................................................................................. 71 Conflicts of Interest ................................................................................................................................. 71 Indebtedness of Directors and Executive Officers .................................................................................. 71 AUDIT COMMITTEE ............................................................................................................................. 72 Relevant Education and Experience ....................................................................................................... 72 Pre-Approval Policies and Procedures .................................................................................................... 72 Auditors’ Fees ......................................................................................................................................... 73 AGREEMENTS WITH PRINCIPAL SHAREHOLDER ..................................................................... 73 Governance Agreement........................................................................................................................... 74 Registration Rights Agreement ............................................................................................................... 79 Letter Agreement .................................................................................................................................... 80 INTEREST OF MANAGEMENT AND OTHERS IN MATERIAL TRANSACTIONS .................. 81 Relationships with the Province and Other Parties ................................................................................. 81 MATERIAL CONTRACTS .................................................................................................................... 83 LEGAL PROCEEDINGS AND REGULATORY ACTIONS .............................................................. 84 INTEREST OF EXPERTS .....................................................................................................................