TGS ASA

Major Shareholding Notification • Jul 9, 2025

Annex: Disclose the information pursuant to the Security Regulation of 29 June 2017 no 876 section 4-1 ("Regulation")

A) the name of the issuer of the shares: TGS ASA. Isin: NO0003078800

B) The date on which the proportion of shares held reached, exceeded or fell below the thresholds set in section 4-3 subsection (1) of the Securities Trading Act,

08 Jul 2025

C) The name of the entity subject to the mandatory disclosure obligation, including the name of the shareholder, Azvalor Asset Management S.G.I.I.C. S.A.

D) the number of shares encompassed by the notification, 10.169.753

E) the subsequent situation with regard to voting rights, including the percentage of the votes and shares of the company held by the entity concerned Number of voting rights 10.169.753 % of voting rights: 5.18%

F) what percentage of the votes and shares of the company the entity concerned holds in the form of rights to shares,

Number of voting rights 10.169.753 % of voting rights: 5.18%

G) the circumstance that triggered the mandatory disclosure obligation and whether such circumstance applied to the entity concerned itself or to any related party as mentioned in section 2-5 of the Securities Trading Act,

The reason for the notification is an increase of voting rights

H) the chain of controlled undertakings through which the shares or rights are owned Azvalor Asset Management SGIIC SA, managed the following investment funds that hold investment in TGS ASA.

Name	% of voting rights if it equals or is higher than the notifiable threshold	% of voting rights through financial instruments if it equals or is higher than the notifiable threshold	Total of both if it equals or is higher than the notifiable threshold
AZVALOR IBERIA FI	0,02%		0,02%
AZVALOR LUX SICAV-AZVALOR INTERNATIONAL	0,54%		0,54%
AZVALOR VALUE SELECTION, SICAV, S.A	0,06%		0,06%
AZVALOR CAPITAL FI	0,01%		0,01%
AZVALOR BLUE CHIPS FI	0,06%		0,06%
MIMOSA CAPITAL SIF SICAV S.A.-AZVALOR ULTRA SUB-FUND	0,09%		0,09%
AZVALOR LUX SICAV-ALTUM FAITH-CONSISTENT EQUITY	0,08%		0,08%
AZVALOR INTERNACIONAL	4,33%		4,33%

I) where the notification concerns rights to shares as mentioned in section 4-3 subsection (4) of the Securities Trading Act the notification shall also contain a description of the rights, including information on the date and time that the rights will or can be exercised and the date and time of their expiry.