Please refer the enclosed file.

HZL/2026-27/SECY/73 August 12, 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”) In terms of 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 18, Motilal Oswal’s 22nd Annual Group/One-on-One Physical Mumbai 2026 Global Investor Conference 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 available on the Company's website at the following 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)