TGS ASA

Notice of Extraordinary General Meeting

OSLO, NORWAY (4 July 2024) - Following the completion of the PGS merger on 1

July 2024, an extraordinary general meeting of TGS ASA (the "EGM") will be held

on 25 July 2024 at 16:00 hours (Oslo time) for the purpose of appointing members

to the Board of Directors and the Nomination Committee and approving their

remuneration, as well as other matters as further set out in the notice.

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). The notice

will be sent to all registered shareholders on 4 July 2024.

To register your attendance, grant proxy or cast votes electronically in advance

through VPS Investor Services, please use the following link:

https://www.tgs.com/investor-center.

The pin code and reference number, which are sent out with the notice, will be

needed. Shareholders that have received the notice electronically will find

information by logging in through VPS Investor services; available at

euronextvps.no or through own account keeper (bank/broker).

For more information, visit TGS.com (http://www.tgs.com), email

Sven Børre Larsen

Chief Financial Officer

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.

Forward Looking Statement

All statements in this press release other than statements of historical fact

are forward-looking statements, which are subject to a number of risks,

uncertainties and assumptions that are difficult to predict and are based upon

assumptions as to future events that may not prove accurate. These factors

include volatile market conditions, investment opportunities in new and existing

markets, demand for licensing of data within the energy industry, operational

challenges, and reliance on a cyclical industry and principal customers. Actual

results may differ materially from those expected or projected in the forward-

looking statements. TGS undertakes no responsibility or obligation to update or

alter forward-looking statements for any reason.

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