CR07565-2026

The Exchange does not warrant and holds no responsibility for the veracity of the facts and representations contained in all corporate disclosures, including financial reports. All data contained herein are prepared and submitted by the disclosing party to the Exchange, and are disseminated solely for purposes of information. Any questions on the data contained herein should be addressed directly to the Corporate Information Officer of the disclosing party.

Manila Electric CompanyMER

PSE Disclosure Form 17-18 - Other SEC Forms/Reports/Requirements

Form/Report Type Attendance of Officers in the ASEAN Corporate Governance Summit
Report Period/Report Date Oct 20, 2026
Description of the Disclosure

Report on the participation of Ms. Melanie T. Oteyza and Ms. Paola Marguerite A. Verayo, officers of Manila Electric Company in the 2026 ASEAN Corporate Governance Summit held on October 20, 2026, from 1:00 p.m. to 5:00 p.m. at the Foro de Intramuros, Intramuros, Manila.

Please refer to the attached disclosure letter.

Filed on behalf by:
Name Jocelyn Villar-Altamira
Designation Vice President and Head, Corporate Governance and Compliance