Investor Presentation

Global Leader in Steel Pipes for the Energy Industry Manufacturing facilities in 18 countries Annual manufacturing capacity of 8.7 million tons of steel pipes 5 Electric steel shops, the least CO2 intensive steel production route 2019 Sales by Region (US$7.3 Bn) Middle East & Africa, 19% Asia Pacific, 5% • R&D centers in 5 countries • Service and distribution network in more than 30 countries • 24,000 employees (Feb.2020) ⚫ Revenue: US$ 7.3 billion (2019) • • Stock exchange listings: New York, Italy and Mexico Europe, 10% South America, 19% North America, 47% Investor Presentation Tenaris March 2020 3

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