S.N.G.N. Romgaz S.A.

Prospectus • Sep 22, 2025

CURRENT REPORT

S.N.G.N. ROMGAZ S.A. MEDIAS 1 9. SEP. 2025 NR 34 15396

In compliance with Law no. 24/2017 regarding Issuers of Financial Instruments and Market Operations and A.S.F. Regulation no. 5/2018

Report date: September 19, 2025 Company name: Societatea Națională de Gaze Naturale ROMGAZ S.A. Address: Medias, 4 Constantin 1. Motas Square, Sibiu County - Romania, 551130 Phone/fax no: 004-0374-401020 / 004-0269-846901 Fiscal Code: RO14056826 LEI Code: 2549009R7KJ38D9RW354 Trade Register registration number: J2001000392326 Subscribed and paid in share capital: RON 3,854,224,000 Regulated market where the issued securities are traded: Bucharest Stock Exchange (BVB)

Significant event to be reported:

· Approval of the updated Base Prospectus related to the Euro Medium Term Notes Programme

In the implementation of the provisions of Articles 1 · 5 of S.N.G.N. ROMGAZ S.A. Extraordinary General Meeting of Shareholders' Decision no. 10 of July 1, 2024, the Board of Directors of S.N.G.N. ROMGAZ S.A. approved, on September 18, 2025:

• the update of the Base Prospectus related to the Euro Medium Term Notes Programme of S.N.G.N. ROMGAZ S.A. ("EMTN Programme") and
• submission of the updated Base Prospectus of the EMTN Programme for approval with the Commission de Surveillance du Secteur Financier of Luxembourg ("CSSF") as competent authority according to Regulation (EU) 2017/1129 of the European Parliament and of the Council of 14 June 2017 on the prospectus to be published when securities are offered to the public or admitted to trading on a regulated market, and repealing Directive 2003/71/EC.

The updated Base Prospectus of the EMTN Programme was approved by the CSSF on September 19, 2025.

The updated Base Prospectus of the EMTN Programme is available for consultation on the Company's website, link: https://www.romgaz.ro/en/debt-ratings .

Jonala De Chief Executive Officer, ROMGAZ S.A. Răzvan POPESCU MEDIAS 2001000392326 Deputy Chief Executive Off Aristotel Marius JODE Chief Financial Officer, Gabriela TRÄNBIŢAŞ ical

1:004-0374 - 401020 F: 004 0269-846901 E: secretarial@romgaz.ro

55130, Medias Piața C.L. Motaș, nr.4 Jud. Sibu - România Capital social: 3.854.224.000 lei CIF: RO 14056826 Nr.ord.reg.com: J2001000392326