Analysts/Institutional Investor Meet/Con. Call Updates

HZL/2026-27/SECY/70 August 07, 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: Disclosure under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, as amended (“SEBI Listing Regulations”) Pursuant to Regulation 30 of SEBI Listing Regulations, please find below the Schedule of Analyst/ Institutional Investor Meet: Date Name of the Conference Type of Meeting Mode Venue August 13, Equirus Annual India Group Physical Mumbai 2026 Conference’26 August 13, Emkay Confluence 2026 – Group/One-on-One Physical Mumbai 2026 India: Full Throttle Ahead Please note the above schedule may undergo changes due to exigencies on the part of the analyst/investors/Company. Please refer to the investor presentation, which is uploaded on our website on the below link: https://www.hzlindia.com/investors/investor-presentations We request you to please take the above on record. Thanking You Yours faithfully, For Hindustan Zinc Limited Aashhima V Khanna Company Secretary & Compliance Officer Sensitivity: Public (C4)