OSLO, Norway (8 July 2025) – TGS ASA (“TGS”), a leading global provider of energy data and intelligence, routinely publishes a quarterly operational update six working days after quarter-end. For Q2 2025, it also includes a financial update. The table below shows TGS’ normalized Ocean Bottom Node (OBN) crew count¹: Q2 2025Q2 2024Normalized crew count Contract1 1.72.7Normalized crew count Multi-client11.10.0 1) The table shows the average number of crews in operation when assuming a normalized crew size. ...

Group 1 - TGS, a leading global provider of energy data and intelligence, will release its Q2 2025 results on July 17, 2025, at 07:00 a.m. CEST [1] - The presentation of the results will be conducted by CEO Kristian Johansen and CFO Sven Børre Larsen at 09:00 a.m. CEST, and it will be webcasted live [1] - The Q2 2025 earnings release and presentation will be accessible on TGS's official websites [1] Group 2 - TGS provides advanced data and intelligence to companies in the energy sector, utilizing leading-edge technology and solutions across the entire energy value chain [2] - The company offers a comprehensive range of insights to assist clients in making informed decisions, supported by a diverse energy data library [2] - TGS is recognized as a trusted partner in the exploration and production of energy resources globally [2]

Core Points - TGS has distributed restricted shares to its Directors as part of their compensation, with the Chair receiving 4,000 shares and other Directors receiving 2,400 shares each [1] - After the issuance of restricted shares, TGS holds 141,117 shares as treasury shares [1] - TGS provides advanced data and intelligence to the energy sector, supporting exploration and production of energy resources worldwide [2] Company Overview - TGS utilizes leading-edge technology and solutions across the entire energy value chain, offering a comprehensive range of insights for better decision-making [2] - The company boasts a global, extensive, and diverse energy data library, establishing itself as a trusted partner in the energy industry [2]