Investor Presentation April 2022

Financial Performance USD million 1,800 1,600 1,400 1,200 1,000 800 600 400 200 EBITDA ה % 20% 15% 1,000 TIME 2017 2018 EBITDA 2019 2020 % EBITDA margin USD million Net cash position 1,200 1,000 800 ༔ ༔ ༔ ° 2021 25% USD million 1,500 Free cash flow % Sales 30% 25% 20% 15% 500 10% 10% 5% 0 5% 2017 2018 2019 2020 21 0% -5% -10% -1,000 -15% FCF Free cash flow margin (% sales) 0% -500 USD million 600 500 400 300 200 100 0 Dividend % yield 4.5% 4.0% 3.5% 3.0% 2.5% 2.0% 1.5% 1.0% 0.5% 0.0% 2020 2021 Proposed HM 2017 2018 2019 2017 2018 2019 2020 2021 Investor Presentation Tenaris I Dividend Yield (Dividend/Avg. Market Cap.) April 2022 12

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