Oslo, Norway (13 March 2025) – In February 2019, TGS implemented an Employee Share Purchase Plan (ESPP) pursuant to which eligible employees can purchase TGS common shares at a discount through payroll deductions. The ESPP operates in six-month periods, and at the end of each period, employees in eligible jurisdictions (United States, United Kingdom and Canada) have the option to purchase stock at a 15% discount to the market price at the time of purchase. The plan sets a maximum purchase of shares per employee per six-month period and ESPP dividends are reinvested in shares.

The following primary insiders received shares from the ESPP purchase on March 7, 2025, as participants in the ESPP. The schedule attached reflects the holdings of the primary insiders following the ESPP purchase. 

---- Kristian Johansen – 100 shares

---- Tana Pool – 100 shares

---- Whitney Eaton – 100 shares

About TGS
TGS provides advanced data and intelligence to companies active in the energy sector. With leading-edge technology and solutions spanning the entire energy value chain, TGS offers a comprehensive range of insights to help clients make better decisions. Our broad range of products and advanced data technologies, coupled with a global, extensive and diverse energy data library, make TGS a trusted partner in supporting the exploration and production of energy resources worldwide. For further information, please visit www.tgs.com.