Please refer the enclosed file

HZL/2026-27/SECY/78 September 03, 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers Exchange Plaza, 5th Floor Plot No., C/l, G Block Dalal Street, Fort Bandra-Kurla Complex, Bandra (East), Mumbai – 400 001 Mumbai – 400 051 Kind Attn: General Manager – Department Kind Attn: Head Listing & Corporate of Corporate Services Communication Scrip Code: 500188 Trading Symbol: “HINDZINC” Sub: Issuance of Letter of Intent in favor of the Preferred Bidder Dear Sir/Ma’am, We wish to inform you that the Government of Karnataka has issued a Letter of Intent (LoI), pursuant to Rule 10(2) of the Mineral Auction Rules 2015, in favour of Hindustan Zinc Limited, the preferred bidder for grant of a mining lease for the Gundlupet REE and Yttrium Block over an extent of 314.21 Hectares situated in Mallayanapur village, Gundlupet Taluka, Chamrajnagar District, Karnataka. We request you to kindly take the above information on record. Thanking You. Yours faithfully, For Hindustan Zinc Limited Aashhima V Khanna Company Secretary & Compliance Officer Sensitivity: Public (C4)