Investor Presentation April 2022

Differentiated Products Full range of high quality products (seamless and welded pipes, premium connections, large OD OCTG and connectors, line pipe, mechanical pipe, accessories, sucker rods and coiled tubing) for use in all types of oil and gas drilling, well completion and transportation activities. Select industrial applications: airbags, cranes, hydraulic cylinders. Product portfolio for the energy transition: hydrogen storage and transportation, carbon capture, use and storage (CCUS) and geothermal energy. Blue® Series BlueDockⓇ Connector Dopeless® technology Airbag inflators Hydrogen storage systems Wedge Series Connections Connections Investor Presentation Tenaris April 2022 8

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