Investor Presentation April 2022

Global OCTG Demand [Mill Tn] 17.7 4.8 15.4 15.4 13.9 14.1 11.8 5.5 11.7 5.9 11.0 5.1 5.0 ■ CHINA & RUSSIAN AREA 3.8 9.6 ■ INTERNATIONAL 4.4 1.1 LATIN AMERICA 5.4 3.3 5.4 3.9 2.5 3.3 2.8 2.6 0.5 0.6 0.7 0.8 2.3 0.8 2.4 2.7 8.0 0.5 5.8 5.9 0.6 5.5 5.5 4.0 3.5 2.3 2.8 2014 2015 2016 2017 2018 2019 2020 2021 2022F Investor Presentation Tenaris ■ USA & CANADA April 2022 7

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