Capacity Addition of Kuppam Unit of the Company

August 7, 2026 BSE Limited National Stock Exchange of India Limited Luxembourg Stock Exchange Scrip Code: 500440 Scrip Code: HINDALCO Scrip Code: US4330641022 Sub: Capacity Addition of Kuppam Unit of Hindalco Industries Limited ["Company"]. Ref: a. Regulation 30 of the Securities Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 [“Listing Regulations”]; b. SEBI Master Circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026 [“SEBI Circular”] and c. ISIN: INE038A01020. Pursuant to the above referred, please be informed that there is proposed capacity expansion being undertaken at Kuppam unit of the Company located in Chitoor, Andhra Pradesh. Brief details, in accordance with the SEBI Circular: Particulars Remarks a. Existing capacity : Upto 20 Kilo-Tonnes Per Annum b. Existing capacity utilization : Between 80% and 85% c. Proposed capacity addition : Upto 10 Kilo-Tonnes Per Annum d. Period within which the proposed capacity is : FY2029 to be added; e. Investment required (in ₹) : ₹768 crores (excluding Interest During Construction of ₹40 crores) f. Mode of financing : Internal accrual and debt g. Rationale : Growth & Expansion This is also made available on the website of the Company www.hindalco.com The above is for your information and dissemination. Sincerely, for Hindalco Industries Limited Geetika Anand Company Secretary & Compliance Officer 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