OSLO, NORWAY Norway (30 October 2023) - Reference is made to the joint announcement on 25 October 2023 made by TGS ASA ("TGS" or the "Company," OSE: TGS) and PGS ASA ("PGS", OSE: PGS) regarding the approval and decision by their respective board of directors upon a definitive merger agreement. An extraordinary general meeting of TGS (the "EGM") will be held on 1 December 2023 to approve the merger with PGS. The EGM will be held as a virtual meeting through the facilities of Lumi at 16:00 hours (Oslo time).

The notice for the EGM is attached hereto (English and Norwegian), together with relevant appendices. The notice will be sent to all registered shareholders on 30 October 2023.

To register your attendance, grant proxy, or cast votes electronically in advance through VPS Investor Services, please copy and paste this link into your browser: https://www.tgs.com/investor-center/corporate-governance/general-meetings

The pin code and reference number, sent out with the notice, will be needed. Shareholders who have received the notice electronically will find information by logging in through VPS Investor Services, available at https://www.euronextvps.no, or through their own account keeper (bank/broker).

For more information, visit TGS.com, email generalmeeting@tgs.com, or contact:

Sven Børre Larsen
Tel: +47 909 43 673
Email: investor@tgs.com


3755 TGS - Notice of EGM