Rompetrol Well Services S.A.

Report Publication Announcement • Oct 14, 2025

Nr. 2290/14.10.2025

To: BUCHAREST STOCK EXCHANGE FINANCIAL SUPERVISORY AUTHORITY

Current report according to ASF Regulation no. 5/2018

Report date: 14.10.2025

ROMPETROL WELL SERVICES S.A. PLOIESTI

Registered headquarters: Ploiesti, 2bis Clopotei Street,

Prahova County

Phone/fax no.: 0244.544.101/ 0244.522.913

Sole Registration Code: RO 1346607

Registration number with the Trade Registry: J1991000110297

Subscribed and paid up share capital: 27,819,090 lei

Regulated market on which the securities issued by the company are traded: Bucharest Stock

Exchange (symbol PTR)

Significant event to report: Change financial calendar 2025

The subscribed, Rompetrol Well Services S.A. (hereinafter referred to as "Company"), informs investors and stakeholders about the change in the financial communication calendar for the year 2025 of the Presentation of the results recorded during the Third Quarter of 2025 and between January – September 2025 from 17.11.2025 to 27.11.2025

Thus, the financial calendar is modified according to the following:

Event	Date
Presentation of the results recorded during the Third	November 27, 2025
Quarter of 2025 and between January – September 2025	Thursday
Phone conferences and / or meetings with investors and	at request
financial analytics, as the case may be

The updated Financial Calendar is also located on the Company's webpage https://www.rompetrolwellservices.com, in section "Investors Relations".

General Manager Mr. Georgian Stefan Florea