Compliance Certificate under Regulation 74(5) of the SEBI (Depositories and Participants) Regulations, 2018 for the quarter ended September 30, 2026.

October 7, 2026 BSE Limited National Stock Exchange of India Limited Luxembourg Stock Exchange Scrip Code: 500440 Scrip Code: HINDALCO Scrip Code: US4330641022 Sub : Compliance Certificate under Regulation 74(5) of the Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018 for the quarter ended September 30, 2026. Ref : ISIN: INE038A01020 With reference to the above captioned subject, please find enclosed herewith copy of the Certificate received from MUFG Intime India Private Limited, Registrar and Share Transfer Agent of the Company for the quarter ended September 30, 2026. This will also be available on the website of the Company i.e. www.hindalco.com This is for your information and records. Sincerely, for Hindalco Industries Limited Geetika Anand Company Secretary & Compliance Officer Encl: a/a Hindalco Industries Limited Registered Office: 21st Floor, One Unity Center, Senapati Bapat Marg, Prabhadevi, Mumbai – 400013, India |T: +91 22 69477000 / 69477150 I F: +91 2269477001/69477090 W: www.hindalco.com |E: hilinvestors@adityabirla.com | Corporate ID No.: L27020MH1958PLC011238