PGS ASA

Major Shareholding Notification • Jun 6, 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

June, 6th 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 the 10% reportable threshold in equity shares of the voting rights and share capital 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: 5th June 2024 Event triggering the notification: Disposal of equity shares

Total new holding: 90,155,503 representing 9.44% of the 955,310,440 voting rights and of the share capital out of which 31,895,825 are held in shares equivalent to 3.34% and 58,259,678 equivalent to 6.10% 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.

This notification has also been sent to the Oslo Børs.

If you have any questions regarding this disclosure, please contact Sjoerd Sluimer on +41-44-235 11 50 in Zurich.

Yours faithfully,

UBS Group AG

Iwona Konwinska Sjoerd Sluimer

Associate Director Authorized Officer