PGS ASA

Declaration of Voting Results & Voting Rights Announcements • May 11, 2023

Oslo BØrs Box 460 Sentrum 0105 Oslo Norway

10th May 2023

Dear Sir / Madam,

Disclosure of Voting Rights in Shares

M&G Plc controls voting rights in 45,889,338 shares of PGS, which estimates to a 5.04% holding, 2,596,402 shares out on loan (right of recall), which estimates to 0.29%, and therefore total interest in 48,485,740 shares, which estimates to a 5.33% holding as of 09th May 2023 based on the total number of shares/voting rights of 909,549,714.

The trigger for this notification is due to M&G Luxembourg S.A. having 914,369 shares going out on loan on 09th May 2023, leading to our holding in normal shares moving below 5%. The table below shows the split between lent and normal shares.

All shares attributed to M&G Plc are managed by M&G Investment Management Limited.

Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held:

Shareholders	Number of Normal Shares/ Voting Rights	Percentage of Normal Shares/Voting Rights	Number of Lent Shares/Voting Rights	Percentage of Lent Shares/Voting Rights	Total Number of Shares	Total Percentage of Shares/Voting Rights
M&G Plc (Ultimate parent)	45,889,338	5.04%	2,596,402	0.29%	48,485,740	5.33%
M&G Group Regulated Entity Holding Company Limited (wholly owned subsidiary of M&G Plc)	45,889,338	5.04%	2,596,402	0.29%	48,485,740	5.33%
M&G Group Limited (wholly owned subsidiary of M&G Group Regulated Entity Holding Company Limited)	45,889,338	5.04%	2,596,402	0.29%	48,485,740	5.33%
M&G FA Limited (wholly owned subsidiary of M&G Group Limited)	45,889,338	5.04%	2,596,402	0.29%	48,485,740	5.33%
M&G Investment Management Limited (wholly owned subsidiary of M&G FA Limited)	45,889,338	5.04%	2,596,402	0.29%	48,485,740	5.33%
M&G Luxembourg S.A. (wholly owned subsidiary of M&G FA Limited)	44,655,416	4.91%	2,596,402	0.29%	47,251,818	5.20%
The Prudential Assurance Company Limited (wholly owned subsidiary of M&G Group Regulated Entity Holding Company Limited)	33,312,864	3.66%	2,596,402	0.29%	35,909,266	3.95%

If you have any queries please contact me on the telephone number or email shown below.

Yours faithfully,

Owen Smith for and on behalf M&G Investment Management Limited Email - M&GRegional.ShareholderDisclosures@mandg.co.uk