Intimation of 60th AGM Date for the FY 2025-26 on 24.08.2026 (Monday) at 11:00 am (IST) through OAVM

CS:01:100/26-27 31st July, 2026 BSE Ltd. National Stock Exchange of India Limited Phiroze Jeejeeboy Towers Exchange Plaza, 5th Floor 25th Floor, Dalal Street Plot No.C/1, G-Block Mumbai – 400 001 Bandra Kurla Complex, Bandra (E) Mumbai – 400 051 BSE Scrip Code: 500110 NSE Trading Symbol: CHENNPETRO ISIN: INE178A01016 Dear Sir, SUB: 60th ANNUAL GENERAL MEETING OF THE COMPANY FOR THE YEAR 2025-26 This is to inform that the 60th Annual General Meeting (AGM) of the Company for the year 2025-26 will be held on Monday, the 24th August 2026 at 11:00 am (IST) through Video Conferencing (“VC”) / Other Audio-Visual Means (“OAVM”), in compliance with the relevant circulars issued by the Ministry of Corporate Affairs and Securities and Exchange Board of India. The Integrated Annual Report for the year 2025-26 comprising of the Notice of the AGM, Financial Statements (Standalone & Consolidated) along with Director’s Report, Auditor’s Report and other documents required to be attached thereto, will be sent through email to those members of the Company whose email address is registered with the Company / Depository Participant(s). Further details about the manner of attending the AGM and casting of votes by members are set out in the Notice of the AGM. The Company is providing remote e-voting facility to all its members to cast their votes on all resolutions as set out in the Notice of AGM. Remote e-voting period would commence on 9:00 am (IST) on Thursday, the 20thAugust 2026 and shall end at 5.00 pm (IST) on Sunday, the 23rd August 2026. During this period only those members of the Company, holding shares either in physical form or in dematerialized form, on the cut-off date i.e. Monday, the 17th August 2026. shall be entitled to vote. As intimated earlier vide letter dated 19th July, 2026, the Company has fixed Friday, the 07th August, 2026 as the “Record Date” for the purpose of determining the eligibility of the members to receive equity dividend of Rs. 54.00 per share (i.e.@ 540% on the paid-up equity share capital) for the year 2025-26. The dividend, if approved by the members at the AGM, will be paid within the stipulated period of 30 days of its approval. The above is for your information and record please. Thanking you, Yours faithfully, for Chennai Petroleum Corporation Limited Lalit Kumar Mohanty Company Secretary