TGS and PGS - Last Day of Trading in PGS Shares

01 Jul 2024 08:00 CEST

OSLO, Norway (1 July 2024) - Reference is made to the joint stock exchange
announcement on 20 June 2024 relating to key dates for completion of the merger
between TGS ASA ("TGS") and PGS ASA ("PGS").

The last day of trading in and listing of the PGS shares will be 1 July 2024.

For further details on the timeline for completion of the merger, see
announcement on 20 June 2024.

For further information on the Merger and the complete terms and conditions for
the Merger, please see the merger plan for the Merger available on www.tgs.com
and www.pgs.com.

For more information, contact:

TGS: Sven Børre Larsen
Chief Financial Officer
Email: investor@tgs.com (mailto:investor@tgs.com)

Gottfred Langseth
Chief Financial Officer
Email: ir@pgs.com (mailto:ir@pgs.com)

Disclosure:

This information is subject of the disclosure requirements pursuant to section
5-12 of the Norwegian Securities Trading Act.

About TGS:

TGS provides scientific data and intelligence to companies active in the energy
sector. In addition to a global, extensive and diverse energy data library, TGS
offers specialized services such as advanced processing and analytics alongside
cloud-based data applications and solutions.

***

The information included herein contains certain forward-looking statements that
address activities, events or developments that the Company expects, projects,
believes or anticipates will or may occur in the future. These statements are
based on various assumptions made by the Company, which are beyond its control
and are subject to certain additional risks and uncertainties. The Company is
subject to a large number of risk factors including but not limited to the
demand for seismic services, the demand for data from our multi-client data
library, the attractiveness of our technology, unpredictable changes in
governmental regulations affecting our markets and extreme weather conditions.
For a further description of other relevant risk factors we refer to our Annual
Report for 2023. As a result of these and other risk factors, actual events and
our actual results may differ materially from those indicated in or implied by
such forward-looking statements. The reservation is also made that inaccuracies
or mistakes may occur in the information given above about current status of the
Company or its business. Any reliance on the information above is at the risk of
the reader, and PGS disclaims any and all liability in this respect.

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