PGS ASA

Major Shareholding Notification • Feb 15, 2024

UBS Group AG Postfach 8098 Zürich Tel. +41-44-438 11 11

Global Shareholder Reporting Group Compliance, Regulatory & Governance

Nemanja Pantic Max-Högger-Strasse 80, 8048 Zurich Tel. +41-44-239 62 08 nemanja-n.pantic@ubs.com

www.ubs.com

Registered Strictly confidential

Oslo Børs Box 460 Sentrum 0105 Oslo Norway

February, 14 th 2024

PGS ASA - Disclosure of large shareholdings under the Securities Trading Act

Dear Sir or Madam,

We would like to inform you that UBS Group AG has crossed below 10% of the total share capital and total voting rights in the issuer PGS ASA (NO0010199151). Please let this serve you as our disclosure as set forth below:

Name of the person obliged to notify:	UBS Group AG
Residing at:	Bahnhofstrasse 45 CH-8001 Zurich
Date of event:	13 th February 2024
Event triggering the notification:	Disposal of Shares.
Total new holding:	92'004'410 representing 9.63% of the 955'310'440 total share capital and total voting rights out of which 16'598'920 are held in shares equivalent to 1.74% and 75'405'490 equivalent to 7.89% held as financial instruments. The shares

share capital and total voting rights out of which 16'598'920 are held in shares equivalent to 1.74% and 75'405'490 equivalent to 7.89% held as financial instruments. The shares and financial instruments are held indirectly by UBS Group AG and directly by its subsidiaries: UBS AG, UBS Switzerland AG, UBS Asset Management (UK) Limited, UBS Fund Management (Switzerland) AG, & Credit Suisse Funds AG.

This notification has also been sent to the issuer.

If you have any questions regarding this disclosure, please contact Konstantina Georgaki on +41-44- 239 40 71 in Zurich.

Yours faithfully,

UBS Group AG

Konstantina Georgaki Sjoerd Sluimer Director Authorized Officer