1Q 2021 Financial Results

Milan, 13 May 2021 1Q 2021 Financial Appendix Highlights Results

2 1Q 2021: A Solid Start of the Year

SOLID START OF THE YEAR: +4.6% Organic Growth* PROJECTS: EXECUTION & INTAKE

Strong recovery of Telecom and Energy Business demand driven by construction and renewables Sofia offshore wind project award worth over 200 €M

RESILIENT MARGINS: 7.6% Adj EBITDA Margin Completion of Crete-Peloponnese Solid volume trend, cost efficiency and price management to balance raw interconnection materials cost inflation. The new vessel “Leonardo Da Negative forex impact (-14 €M). Vinci” to enter in operation in Q3, on time for Viking installation

SOUND FREE CASH FLOW GENERATION

553 €M of FCF LTM excluding antitrust cash-out

SALES ADJ. EBITDA FREE CASH FLOW

SALES ORGANIC GROWTH* ADJ. EBITDA ADJ. EBITDA MARGIN FCF LTM NET DEBT 2,810 €M +4.6% 213 €M 7.6% 553 €M 2,325 €M

SOLID ORGANIC GROWTH RESILIENT MARGINS FREE CASH FLOW +11.4% Telecom, with strong sequential Energy Business margins higher than pre- improvement Covid 19 level, despite raw material 553 €M of FCF LTM excluding antitrust increase +3.5% E&I, mainly driven by construction cash-out Sound volume in Telecom and strong +3.5% Industrial & NWC driven by OEM efficiency measures and renewables Negative forex impact (-14 €M)

Projects Energy Telecom TOTAL

347 314 -7.9% 1,888 2,114 +3.4% 352 382 +11.4% 2,587 2,810 +3.0%

E&I Industrial & NWC Sales Sales ( ) 1,239 1,400 +3.5% 598 648 +3.5% 14 forex 197

75 68 213 58 45 49 48 36 29

10.4% 9.3% 5.5% 5.3% 7.5% 7.6% 13.6% 15.2%

Adj. EbitdaAdj. Adj. EbitdaAdj. 1 Q 2 0 2 0 1 Q 2 0 2 1 1 Q 2 0 2 0 1 Q 2 0 2 1 1 Q 2 0 2 0 1 Q 2 0 2 1 1 Q 2 0 2 0 1 Q 2 0 2 1 7.6% 7.6%

1 Q 2 0 2 0 1 Q 2 0 2 1 HIGHLIGHTS HIGHLIGHTS HIGHLIGHTS HIGHLIGHTS

Phasing affecting results, with Solid organic growth in T&I Strong organic growth in Strong sequential improvement improvement expected in H2, and Overhead, partially Renewables & Network mainly driven by German Cost efficiency measures partly Q1 2021 organic growth offset by PD (normalizing in Components, positive Corridors North America as expected, offsetting price pressure and Elevators and Automotive other headwinds Submarine backlog further after 2020 strong growth) increased to 1.8 €Bn (total Positive carry-over from YOFC Projects: 3.8 €Bn backlog) 2020 actual results (4 €M)

ENERGY TELECOM

2021

2019 2019 2021 2020

2020

Monthly volume evolution baseline: Jan 2019 Optical cable business only in Telecom © Prysmian Group 2021 6 Energy Business: Higher than Pre-Covid levels EMEA NORTH AMERICA 2021 2021 2019 2019 2020 2020 APAC

2019 130 2021 2020 100

70 LATIN AMERICA

2021 130 2020

GROUP 2021 110 2019 2019 2020 90 Jan Feb Mar Monthly Volume Evolution baseline: Jan 2019 E&I + Industrial

E&I Industrial & NWC Total Energy

-3.4%* +3.5%* -0.3%* +3.5%* -2.4%* +3.4%* * Organic growth

1,310 1,400 1,239 648 2,114

599 598 1,967 1,888 Sales

1Q 1Q 1Q 1Q 1Q 1Q 1Q 1Q 1Q 2019 2020 2021 2019 2020 2021 2019 2020 2021

75 69 68 126 112 113 41 45 49

5.2% 5.5% 5.3% 6.9% 7.5% 7.6% 5.7% 6.0% 6.0% Adj. EbitdaAdj. 1Q 1Q 1Q 1Q 1Q 1Q 1Q 1Q 1Q 2019 2020 2021 2019 2020 2021 2019 2020 2021

EMEA* NORTH AMERICA* LATIN AMERICA* ASIA PACIFIC* TOTAL GROUP

1,070 1,192 +3.9% 840 868 -0.9% 172 226 +27.9% 158 210 +14.1% 2,587 2,810 +4.6%*

Sales Sales 213 95 87 197 29 Projects 58 36 52 21 13 18

1 Regions Ebitda Ebitda 6 184 161

4.9% 4.9% 11.3% 10.0% 8.0% 9.6% 0.4% 8.5% Adj. Adj.

Adj. Adj. 1 1 Q 2 0 2 0 1 Q 2 0 2 1 1 Q 2 0 2 0 1 Q 2 0 2 1 1 Q 2 0 2 0 1 Q 2 0 2 1 1 Q 2 0 2 0 1 Q 2 0 2 1 7.2% 7.4%

1 Q 2 0 2 0 1 Q 2 0 2 1 HIGHLIGHTS HIGHLIGHTS HIGHLIGHTS HIGHLIGHTS

Recovery led by Energy Stable results in local currency Sound performance mainly Solid results led by full (construction and renewables) recovery of Covid-19 impact Sound trend in O&M, driven by construction and 1Q 2021 Organic growth and volume in Telecom Renewables and Optical Cable Telecom excluding Projects segment PD normalizing as expected, Share of net income after 2020 onshore wind (14) €M total Group forex impact subsidies spurring growth

ENERGY TELECOM PROJECTS

Keep protecting Leveraging on volume Solid market outlook: profitability: coping with rebound and cost focus on tendering activity A CABLE SOLUTIONS and smooth execution cost inflation and raw actions to balance price PROVIDER material availability pressure WITH A

2021 OUTLOOK: INCREASED CONFIDENCE IN THE GUIDANCE Complete and balanced business portfolio

2021 ADJ. EBITDA 870 Wide geographical presence TARGET (€M) 940

Wide and integrated customer base 2021 FCF FCF before acquisition ± TARGET (€M) & disposals ~ 300 20%

1Q 2021 1Q 2020 Adj. EBITDA Bridge

SALES 2,810 2,587 Q1 YoY total growth 8.6% YoY organic growth 3.0% ADJ. EBITDA 2020 197 Adj.EBITDA 213 197 Projects (7) % on sales 7.6% 7.6% Energy 13 of which share of net income 6 1 Telecom (ex-share of net income) 5 Adjustments (14) (14) share of net income 5 EBITDA 199 183 ADJ. EBITDA 2021 213 % on sales 7.1% 7.1% of which Forex effect (14) Adj.EBIT 135 117 % on sales 4.8% 4.5% Adjustments (14) (14) Financial Charges Special items 2 (45) EBIT 123 58 % on sales 4.4% 2.2% 1Q 2021 1Q 2020 Financial charges (13) (27) Net interest expenses (23) (23) (5) (2) EBT 110 31 of which non-cash conv.bond interest exp. % on sales 3.9% 1.2% Financial costs IFRS 16 (1) (1) Taxes (32) (11) Bank fees amortization (1) (1) % on EBT 29.1% 35.5% Gain/(loss) on exchange rates and derivatives (3) (1) NET INCOME 78 20 Non recurring and other effects 15 (1) % on sales 2.8% 0.8% Net financial charges (13) (27) Minorities 2 (3) GROUP NET INCOME 76 23 % on sales 2.7% 0.9%

31 Mar 2021 31 Mar 2020 31 Dec 2020

Net fixed assets 5,110 5,258 4,971 of which: goodwill 1,607 1,612 1,508

Net working capital 1,071 1,122 523 of which: derivatives assets/(liabilities) 171 (61) 91 of which: Operative Net working capital 900 1,183 432

Provisions & deferred taxes (597) (737) (579)

Net Capital Employed 5,584 5,643 4,915

Employee provisions 511 487 506 Shareholders' equity 2,748 2,550 2,423 of which: attributable to minority interest 171 180 164

Net financial debt 2,325 2,606 1,986

Total Financing and Equity 5,584 5,643 4,915

©© Prysmian Group Group 2021 2021 1313 Cash Flow Euro Millions

NET DEBT EVOLUTION

+441 €M Free Cash Flow

( 813 )

78 ( 36 ) 84 ( 36 ) 137 ( 9 ) 70 221 90 ( 255 ) 112 76

2,606 2,325

31-mar-20 Cash flow WC Restruct, non Antitrust Net Operative Financial Paid income Dividend Dividend Acquisitions Proceed & IFRS 16 Other 31-mar-21 operations changes operating & Capex Charges taxes received paid Reimbursment (before WC other of Convertible changes) adjustments bonds

©© Prysmian Group Group 2021 2021 1414 1Q 2021 Financial Appendix Highlights Results

15 Energy and Telecom: a recovery path to pre-pandemic levels

ENERGY E&I

1.7% 1.8% 3.4% 3.4% 2.8% 3.5% -1.1% 1.0% -2.7%-2.4% -4.5%-3.4% -4.2%-4.9% -4.4%-4.0% GROUP -16.1% -17.0% 3.1% 4.6% Q 1 Q 2 Q 3 Q 4 Q 1 Q 2 Q 3 Q 4 Q 1 2.4% Q 1 Q 2 Q 3 Q 4 Q 1 Q 2 Q 3 Q 4 Q 1 19 19 19 19 20 20 20 20 21 19 19 19 19 20 20 20 20 21 -1.7% -3.9% -5.4% -5.2% -4.8% INDUSTRIAL & NWC TELECOM -17.0% 9.8% 11.4% 3.5% Q 1 Q 2 Q 3 Q 4 Q 1 Q 2 Q 3 Q 4 Q 1 0.7% 19 19 19 19 20 20 20 20 21 6.0% -0.4% -1.6% -5.2% -0.3% -4.1% -7.2% -4.5% -3.8% -9.7% -10.0% -15.9% -19.0% -21.1% Q 1 Q 2 Q 3 Q 4 Q 1 Q 2 Q 3 Q 4 Q 1 19 19 19 19 20 20 20 20 21 Q 1 Q 2 Q 3 Q 4 Q 1 Q 2 Q 3 Q 4 Q 1 19 19 19 19 20 20 20 20 21 © Prysmian Group 2021 Organic growth y-o-y; excluding Projects segment 16 A global recovery EMEA

3.9% 2.0% 1.8% NORTH AMERICA

4.7% -4.4% -4.2% 3.8% 3.3% -4.7%-4.9% -7.4% 0.0% -1.0% -0.9% -6.2% -18.1% -7.9% Q 1 Q 2 Q 3 Q 4 Q 1 Q 2 Q 3 Q 4 Q 1 19 19 19 19 20 20 20 20 21 ASIA PACIFIC -14.6% 14.1% Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 19 19 19 19 20 20 20 20 21 1.6% 1.0%

GROUP -0.5% -1.8% 4.6% -9.3% -9.2% 3.1% 2.4% -9.7% LATIN AMERICA -20.5% -1.7% 27.9% -3.9% -5.4% -4.8% Q 1 Q 2 Q 3 Q 4 Q 1 Q 2 Q 3 Q 4 Q 1 -5.2% 19 19 19 19 20 20 20 20 21 7.3% 5.6% 1.4% -0.1% -17.0% -5.0% -0.9% -13.4% Q 1 Q 2 Q 3 Q 4 Q 1 Q 2 Q 3 Q 4 Q 1 19 19 19 19 20 20 20 20 21 -27.3% Q 1 Q 2 Q 3 Q 4 Q 1 Q 2 Q 3 Q 4 Q 1 19 19 19 19 20 20 20 20 21 © Prysmian Group 2021 Organic growth y-o-y; excluding Projects segment 17 1Q 2021 Financial highlights Euro Millions, % on Sales

SALES ADJUSTED EBITDA (1)

+3.0%*

( 14 ) 2,587 2,810 197 forex

213

7.6% 7.6%

1Q 2020 1Q 2021 1Q 2020 1Q 2021

REPORTED OPERATIVE NET WORKING CAPITAL (2) REPORTED NET FINANCIAL DEBT

2,606 1,183 1,986 2,325 900 432

4.3% 11.4% 8.0%

DEC-20 MAR-20 MAR-21 DEC-20 MAR-20 MAR-21

1Q 2021 1Q 2020 SALES 2,810 2,587 YoY total growth 8.6% YoY organic growth 3.0% Adj.EBITDA 213 197 % on sales 7.6% 7.6% of which share of net income 6 1 Adjustments (14) (14) Adjustments and Special Items on EBIT EBITDA 199 183 % on sales 7.1% 7.1% 1Q 2021 1Q 2020 Adj.EBIT 135 117 % on sales 4.8% 4.5% Non-recurring Items (2) - Adjustments (14) (14) Restructuring (5) (6) Special items 2 (45) EBIT 123 58 Other Non-operating Income / (Expenses) (7) (8) % on sales 4.4% 2.2% EBITDA adjustments (14) (14) Financial charges (13) (27) Special items 2 (45) EBT 110 31 Gain/(loss) on metal derivatives 10 (36) % on sales 3.9% 1.2% Share-based compensation (8) (9) Taxes (32) (11) EBIT adjustments (12) (59) % on EBT 29.1% 35.5% NET INCOME 78 20 % on sales 2.8% 0.8% Minorities 2 (3) GROUP NET INCOME 76 23 % on sales 2.7% 0.9%

WELL POSITION TO CAPTURE MARKET OPPORTUNITIES: 7.2 €BN ORDERS/YEAR EXPECTED

Robust market growth The highest installation capabilities Driving Innovation 7.2 3 Vessels Industry first to qualify both 525kV XLPE and P Laser solutions Interconnectors The highest production capacity 2.4 1st high depth submarine cable with Offshore Wind 4 dedicated plants for submarine synthetic armor Avg. market Avg. market 20152015-2019 20202016-2030

BACKLOG AT THE HIGHEST LEVEL: € 3.8 BILLION OFFSHORE WIND: FROM GW INSTALLED TO €M CABLE VALUE

Underground HV Submarine Total Group Transmission & Turbine 1 GW of offshore wind requires: 4 inter-array cabling 30-40% ▪ Submarine Transmission cable (AC or DC) 20-30% ▪ Land Transmission Cable (AC or DC) 3 ▪ Interarray cables (MV 33 or 66kV) ▪ Installation for all Installation 2 15-20% Foundation 1 20-25% Prysmian Market Approx. value for all these items on average 300 € million Indicative shares of capital cost by component 0 per Gigawatt Split based on historical figures and projecting the cost per GW dic-13 dic-14 dic-15 dic-16 dic-17 dic-18 dic-19 dic-20 mar-21

SALES HIGHLIGHTS

-7.9%* SUBMARINE / Unfavorable projects mix and undersaturation of extruded capacity affecting Submarine trend / Tendering activity ongoing, with a solid pipeline of projects (interconnections and off-shore wind farms) / Sofia offshore wind project award worth over 200 €M / Submarine backlog further increased to 1.8 €Bn 347 314

UNDERGROUND HIGH VOLTAGE 1 Q 2 0 2 0 1 Q 2 0 2 1 / Stable results in Q1, with improvement expected in H2 mainly driven by German Corridors

* Org. Growth.

Adj. EBITDA / % of Sales(1) ORDERS BACKLOG EVOLUTION (€M)

36 DEC ’13 DEC ’14 DEC ’15 DEC ’16 DEC ’17 DEC ’18 DEC ’19 DEC ’20 MAR ’21 29

Underground HV ~450 ~450 ~600 ~350 ~400 ~435 ~310 ~1,980 ~1,980

10.4% 9.3% Submarine ~2,050 ~2,350 ~2,600 ~2,050 ~2,050 ~1,465 ~1,730 ~1,510 ~1,790

1 Q 2 0 2 0 1 Q 2 0 2 1 Group ~2,500 ~2,800 ~3,200 ~2,400 ~2,450 ~1,900 ~2,040 ~3,490 ~3,770

SALES HIGHLIGHTS

3.5%* TRADE & INSTALLERS / Strong organic growth driven by EMEA (mainly Southern Europe, CEE and North Europe), APAC and LATAM / Margins improvement driven by volume and costs efficiency offsetting raw material costs increase

1,400 POWER DISTRIBUTION 1,239 / PD normalizing as expected, after 2020 onshore wind subsidies spurring growth

OVERHEAD 1 Q 2 0 2 0 1 Q 2 0 2 1 / Sound organic growth in North America. * Org. Growth

Adj. EBITDA / % of Sales(1) ADJ.EBITDA AND % SALES

Adj.Ebitda Adj.Ebitda margin ±X.X% = YoY Sales Organic growth

68 75 +2.7% +3.0% -3.1% -0.2% +2.1% +0.7% -7.5% +3.5% 5.8% 5.8% 5.8% 4.6% 5.1% 4.1% 4.0% 3.8% 5.5% 5.3% 308 275 282 207 1 Q 2 0 2 0 1 Q 2 0 2 1 108 128 154 130

2014 2015 2016 2017 2018 2019 2020 1Q 2021 LTM

SALES HIGHLIGHTS

3.5%* SPECIALTIES, OEM & RENEWABLES Overall positive performance and resilience to Covid-19. Solid performances of Railways, Infrastructure Wind and Solar, partially offset by Rolling Stock del Cranes e del Nuclear.

ELEVATOR Completed the acquisition of EHC Global, leading manufacturer of strategic components and integrated solutions for the vertical transportation industry. 598 648 AUTOMOTIVE Positive trend confirmed in Q1 after the material drop in Q2 2020, with volume recovery mainly driven by EMEA 1 Q 2 0 2 0 1 Q 2 0 2 1 * Org. Growth OIL & GAS Declining volume driven by EMEA and North America, partially offset by APAC e LATAM

NETWORK COMPONENTS Improving results mainly driven by HV and EHV in Southern Europe. Stable MV.

Adj. EBITDA / % of Sales(1) ADJ.EBITDA AND % SALES

Adj.Ebitda Adj.Ebitda margin ±X.X% = YoY Sales Organic growth 45 49 -0.3% -0.8% -4.6% +3.5% +3.3% -1.7% -7.0% +3.5% 9.5% 8.0% 8.1% 7.9% 6.8% 7.9% 7.4% 7.4% 7.5% 7.6%

1 Q 2 0 2 0 1 Q 2 0 2 1 115 122 127 115 172 196 166 170

2014 2015 2016 2017 2018 2019 2020 1Q 2021 LTM © Prysmian Group 2021 23 Telecom Euro Millions, % on Sales

SALES HIGHLIGHTS

11.4%* OPTICAL CABLE & FIBRE / Strong sequential improvement in all regions / Cost efficiency measures partly offsetting price pressure and other headwinds / Positive carry-over from YOFC 2020 actual results (4 €M) 352 382 MMS / Sequential improvement, with positive organic growth in Q1 1 Q 2 0 2 0 1 Q 2 0 2 1

* Org. Growth.

Adj. EBITDA / % of Sales(1) ADJ.EBITDA AND % SALES

Adj.Ebitda Adj.Ebitda margin ±X.X% = YoY Sales Organic growth

58 +4.0% +9.9% +8.5% +5.3% +6.4% +0.4% -14.1% +11.4% 48 18.0% 17.0% 16.6% 16.0% 14.0% 15.6% 11.7% 12.1%

13.6% 15.2% 295 214 274 214 224 1 Q 2 0 2 0 1 Q 2 0 2 1 116 134 163

2014 2015 2016 2017 2018 2019 2020 1Q 2021 LTM

2021 ADJ. EBITDA TARGET (€M) 2021 FCF TARGET (€M)

870 940 FCF before acquisition & disposals ~ 300 ±20%

20-25 forex forex 32

870 - 940 840

2020 Projects Energy Telecom Forex 2021 Adj. Ebitda Adj. Ebitda

Assuming no relevant Covid disruption on current trend; Assumed no cash-out related to Antitrust rulings and related claims; Negative impact from Forex: ASSUMPTIONS cumulated effect 2020A-2021E approx. 55 €M

OUR NET ZERO CLIMATE AMBITION Prysmian Group has set carbon reduction targets aligned with the Science Based Targets initiative and Net Zero ambition

Net Zero between 2035 and 2040 for our Scope 1&2 emissions, -46% 2030 Scope 1&2 interim target and by 2050 for our Scope 3 emissions -14% 2030 Scope 3 interim target 100 Interim 2030 science-based targets, against a 2019 baseline Net Zero Signed the Business Ambition for 1.5C Commitment Letter(1)

Already working for an earlier delivery on carbon reduction targets

Decarbonise 80% of our reduction (%) reduction Approx 100 €M of Capex Carbon emissions emissions Carbon 1 Scope 1&2 carbon footprint 2

▪ phasing out SF6 emissions ▪ Over the next ten years 0 ▪ 100% renewable energy for ▪ Across our global operations 2019 2030 2040 2050 electricity of over 130 sites Baseline year Scope 1&2 Net Zero Scope 3 Net Zero by 2040 or earlier by 2050

©© PrysmianPrysmian GroupGroup 20212021 (1) The Business Ambition for 1.5°C is a campaign led by the Science Based Targets initiative in partnership with the UN Global Compact and the We Mean Business coalition. 2626 Telecom Business Secular growth drivers

MARKET OPPORTUNITIES & CUSTOMER NEEDS OUR APPROACH & SOLUTIONS

FIBER DENSITY World record / More fiber per mm2 in DENSITY / Ubiquity by optimizing the AND MINIATURIZATION roll-out Capex

RELIABILITY / FUTUREPROOFNESS Best in class / Easy-to-install products for BEND for all rights of way INSENSITIVITY / No compromise on quality

SUSTAINABILITY At the forefront regarding / Optical networks consume less energy SUSTAINABILITY / Less invasive products / Product miniaturization / Less plastic material in miniaturized cables / Local presence and shorter supply chains / Use of recycled materials / Development of specifically sustainable / Shorter supply chains for lighter products solutions

The acceleration of digitalization requests sustainable, reliable and ubiquitous fiber networks, to support the 5G and all the new technologies to come

Supply Main Application Metal Influence on Cable Price Metal Fluctuation Management Contract

Impact Impact

Projects (Energy Technology and design content are Pricing locked-in at order intake Predetermined transmission) the main elements of the “solution” delivery date offered Profitability protection through systematic hedging (long Cables for industrial order- to-delivery cycle) applications (eg. OGP) Pricing little affected by metals

Pricing defined as hollow, thus Price adjusted through formulas linked to metal publicly Frame Cables for energy mechanical price adjustment through available quotation (average last month, …) contracts utilities (e.g. power formulas linked to metal publicly Profitability protection through systematic hedging (short distribution cables) available quotation order-to-delivery cycle)

Pricing managed through price lists, thus leading to some delay Spot Cables for construction Standard products, high copper orders and civil engineering content, limited value added Competitive pressure may impact on delay of price adjustment Hedging based on forecasted volumes rather than orders

High

Low Metal price fluctuations are normally offset through systematic application of hedging strategies

Energy Projects Industrial & Network Telecom Energy & Infrastructure Components High Voltage Trade & Installers Core Oil & Gas products Telecom solutions Specialties, OEM & Submarine Energy Power Distribution Optical Fibre Renewables Overhead Transmissions Submarine Telecom Automotive Multimedia Solution Line Offshore Specialties Elevator

Network Component

PROJECTS BUSINESS ENERGY BUSINESS TELECOM BUSINESS Comprising high-tech and high value-added Comprising high and medium voltage cable systems to connect Comprising businesses devoted to making businesses focused on the design, industrial and residential buildings to primary distribution grids the cabling systems and connectivity production and customisation of HV and and low voltage ones used within residential and commercial products used in TLC networks.The Group is EHV cabling systems for terrestrial and buildings. also among the leaders in the production of submarine applications. Specialties, OEM & Renewables include cable systems for optical fibre - the essential component of all types of optical cables. Prysmian Group also offers advanced many specific industrial applications such as Cranes, Mining, services for terrestrial and submarine Railways, Rolling Stock, Marine and Renewables - cables for In both cables and connectivity, the Group interconnections between various countries the solar energy industry and for the operation of wind turbines). focuses on the design of products that and between offshore wind farms and the The product range is completed with accessories and provided greater density in a smaller mainland, used for both the generation and components for connecting cables and other elements diameter, with ease of use and optimal fibre distribution of electricity. contained in networks. management.

Sales Adj.EBITDA

1Q 2021 1Q 2020 1Q 2021 1Q 2020 organic Adj.EBITDA Adj.EBITDA €M €M €M €M growth Margin Margin PROJECTS 314 -7.9% 347 29 9.3% 36 10.4%

Energy & Infrastructure 1,400 3.5% 1,239 75 5.3% 68 5.5%

Industrial & Network Components 648 3.5% 598 49 7.6% 45 7.5%

Other 66 0.0% 51 2 3.1% - -

ENERGY 2,114 3.4% 1,888 126 6.0% 113 6.0%

TELECOM 382 11.4% 352 58 15.2% 48 13.6%

Total Group 2,810 3.0% 2,587 213 7.6% 197 7.6%

© Prysmian Group 2021 30 12 Months Cash Flow Statement 31 Mar 2021 31 Mar 2020 (from 1/4/2020 to Euro Millions 31/3/2021) Adj.EBITDA 213 197 856 Adjustments (14) (14) (59) EBITDA 199 183 797 Net Change in provisions & others (10) (44) (149) Share of income from investments in op.activities (6) (1) (23) Cash flow from operations (before WC changes) 183 138 625 Working Capital changes (477) (473) 255 Dividends received 3 2 9 Paid Income Taxes (10) (15) (137) Cash flow from operations (301) (348) 752 Acquisitions/Disposals (73) - (78) Net Operative CAPEX (29) (52) (221) Free Cash Flow (unlevered) (403) (400) 453 Financial charges (13) (9) (90) Free Cash Flow (levered) (416) (409) 363 Free Cash Flow (levered) excl. Acquisitions & Disposals (343) (409) 441 Dividends - - (70) Capital increase, Shares buy-back & other equity movements - - 1 Net Cash Flow (416) (409) 294

Net Financial Debt beginning of the period (1,986) (2,140) (2,606)

Net cash flow (416) (409) 294 Equity component of Convertible Bond 2021 49 - 65 Partial Redemption of the 2017 Convertible Bond (13) - (13) Consolidation of EHC Net Financial Debt 9 - 9 NFD increase due to IFRS16 (5) - (84) Other variations 37 (57) 10 Net Financial Debt end of the period (2,325) (2,606) (2,325)

COMFORTABLE LIQUIDITY POSITION: / Average debt maturity increased to 3.5 years after 750 €M Equity Linked Bonds issued on 2nd February 2021 / 1,0 €Bn of committed Revolving Credit Facility fully unutilized

CURRENT FINANCIAL DEBT MATURITY PROFILE(*)

UNICREDIT TL 200 RCF 2019 2017 CONVERTIBLE BOND 1,000 ZERO–COUPON 250

ACQ. TERM LOAN 2021 CONVERTIBLE BOND ZERO–COUPON EUROBOND 2.5% 1,000 CDP 2019 100 750 750 INTESA TL 150

MEDIOBANCA TL 100 CDP 2021 75 EIB 2017 110 2021 2022 2023 2024 2025 2026

(*) excluding debt held by local affiliates and debt coming from IFRS 16 (126 €M and 180 €M respectively) at 31.03.2021

PROJECTS ENERGY & INFRASTRUCTURE

( 27 ) 2 ( 8 ) 201 ( 83 ) 43

347 Org.growth Org.growth -7.9% 314 3.5% 1,400 1,239 TOTAL CONSOLIDATED

1Q 2020 Organic Metal Exchange 1Q 2021 1Q 2020 Organic Metal Exchange 1Q 2021 ( ) 287 158 Growth Effect Rate Growth Effect Rate 77 17

INDUSTRIAL & NETWORK COMP. TELECOM Org.growth 3.0% 2,810 2,587 56 ( 44 ) ( 18 ) 21 17 40 8

1Q 2020 Organic Metal Exchange Perimeter 1Q 2021 Growth Effect Rate Effect Org.growth 648 Org.growth 598 3.5% 352 11.4% 382

1Q 2020 Organic Metal Exchange Perimeter 1Q 2021 1Q 2020 Organic Metal Exchange 1Q 2021 Growth Effect Rate Effect Growth Effect Rate

1) Adjusted excluding restructuring, non-operating income/expenses and non-recurring income / expenses; 2) Defined as NWC excluding derivatives; % on annualized last quarter sales;

▪ The managers responsible for preparing the company's financial reports, A.Brunetti and S.Invernici, declare, pursuant to paragraph 2 of Article 154-bis of the Consolidated Financial Act, that the accounting information contained in this presentation corresponds to the results documented in the books, accounting and other records of the company.

▪ Certain information included in this document is forward looking and is subject to important risks and uncertainties that could cause actual results to differ materially. The Company's businesses include its Projects, Energy and Telecom Operating Segments, and its outlook is predominantly based on its interpretation of what it considers to be the key economic factors affecting these businesses.

▪ Any estimates or forward-looking statements contained in this document are referred to the current date and, therefore, any of the assumptions underlying this document or any of the circumstances or data mentioned in this document may change. Prysmian S.p.A. expressly disclaims and does not assume any liability in connection with any inaccuracies in any of these estimates or forward-looking statements or in connection with any use by any third party of such estimates or forward-looking statements. This document does not represent investment advice or a recommendation for the purchase or sale of financial products and/or of any kind of financial services. Finally, this document does not represent an investment solicitation in Italy, pursuant to Section 1, letter (t) of Legislative Decree no. 58 of February 24, 1998, or in any other country or state.

▪ In addition to the standard financial reporting formats and indicators required under IFRS, this document contains a number of reclassified tables and alternative performance indicators. The purpose is to help users better evaluate the Group's economic and financial performance. However, these tables and indicators should not be treated as a substitute for the standard ones required by IFRS.