Indian Oil Corporation Ltdhas informed BSE that the meeting of the Board of Directors of the Company is scheduled on 30/10/2026 ,inter alia, to consider and approve unaudited financial result for the quarter and half year ended 30th September 2026.

No. Secl/Listing 13th October 2026 National Stock Exchange of India Limited BSE Ltd. Exchange Plaza, 5th Floor, 25th Floor, Bandra –Kurla Complex, P J Tower, Bandra (E), Dalal Street, Mumbai - 400051 Mumbai – 400001 Scrip Symbol: IOC Scrip Code: 530965 Dear Sir, Sub: Board Meeting – Unaudited Financial Results for the quarter and half year ended 30th September 2026 Pursuant to regulation 29(1) & (2) and 50(1) of the SEBI (Listing Obligations & Disclosure Requirements), Regulations 2015, it is hereby informed that a Board Meeting of the Company is scheduled on Friday, 30th October 2026, inter alia, to consider and approve the Unaudited Financial Results of the Company for the quarter and half year ended 30th September 2026. Further to our earlier letter dated 25th September 2026 with regard to closure of Trading Window, it is hereby informed that the Trading Window for dealing in securities of lndianOil shall remain closed till 1st November 2026 for all 'Insiders' as per the Insider Trading Code of the Company. The above is for your information and record please. Thanking you, Yours faithfully, For Indian Oil Corporation Limited (Kamal Kumar Gwalani) Company Secretary