Please refer the enclosed file

HZL/2026-27/SECY/101 October 30, 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” Dear Sir/Ma’am, Sub: Newspaper Advertisements – Special Window for transfer and dematerialisation of physical securities In accordance with the SEBI Circular No. HO/38/13/11(2)2026-MIRSD-POD/I/3750/2026 dated January 30, 2026, please find enclosed copies of the newspaper advertisements published today i.e., October 30, 2026, in the following newspapers: • Financial Express (English) • Dainik Navjyoti (Hindi) 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 Enclosed: As above Sensitivity: Public (C4)