Copy of Newspaper Publication

HZL/2026-27/SECY/66 July 25, 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 - Unaudited Financial Results for the First Quarter ended June 30, 2026 Pursuant to Regulation 47 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, as amended from time to time, read with relevant circulars issued in this regard, please find enclosed the copies of newspaper advertisements relating to the Unaudited Financial Results for the First Quarter ended June 30, 2026, published today i.e. July 25, 2026, in the following newspapers: • Economic Times (English) • Rajasthan Patrika (Hindi) • Dainik Bhaskar (Hindi) The aforesaid copies have also been made available on the website of the Company at www.hzlindia.com 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)