ANNOUNCEMENT

EXTRAORDINARY GENERAL MEETING OF SHAREHOLDERS

PT OBM DRILCHEM TBK

The Board of Directors of PT OBM Drilchem Tbk (the “Company”) hereby announces that the Company will hold an Extraordinary General Meeting of Shareholders (the “Meeting”) on Tuesday, 29 September 2026, at 10:00 WIB. The Meeting will be conducted electronically via the eASY.KSEI system provided by KSEI, with the physical venue located at Dipo Tower 7th Floor, Suite 7E, Jl. Gatot Subroto kav. 51, Petamburan, Tanah Abang, Central Jakarta.

Meeting Agenda: Approval of the reappointment of the members of the Board of Directors and the Board of Commissioners.

In accordance with the Financial Services Authority Regulation No. 15/POJK.04/2020 on the Plan and Holding of General Meetings of Shareholders of Public Companies (“POJK 15/2020”), the Convocation will be published on 07 September 2026 via the following websites:

• Indonesia Stock Exchange: www.idx.co.id
• PT Kustodian Sentral Efek Indonesia: https://akses.ksei.co.id
• The Company: www.drilchem.com

Shareholders entitled to attend or be represented at the Meeting are those whose names are registered in the Company's Register of Shareholders and/or sub-securities account owners at PT Kustodian Sentral Efek Indonesia as of the market close on 04 September 2026, at 16:00 WIB.

Electronic Proxy (e-Proxy) Shareholders may delegate attendance and voting authority electronically via the e-Proxy facility on KSEI's Electronic General Meeting System (eASY.KSEI) at https://akses.ksei.co.id/. The e-Proxy facility is accessible to eligible shareholders from the date of the Notice of Meeting until 1 (one) day prior to the Meeting date.

Agenda Proposals by Shareholders One or more shareholders representing at least 1/20 (one-twentieth) of the total shares with voting rights may propose agenda items for the Meeting. Such proposals must be submitted in writing to the Board of Directors in compliance with POJK 15/2020 no later than 7 (seven) days prior to the issuance of the Notice of Meeting

 

Jakarta, 21 August 2026

Board of Directors

PT OBM Drilchem Tbk