PGS ASA

Major Shareholding Notification • Jun 18, 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,17th 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 5% of the voting rights and of the share capital in the issuer PGS ASA (NO0010199151) and is now applying trading book exemption. 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: 14 th June 2024 Event triggering the notification: Disposal of equity shares Total new holding: 1,823,793 representing 0.19% of the 955,310,440 voting rights and of the share capital. The shares 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 issuer.

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