Please refer the enclosed file

HZL/2026-27/SECY/64 July 24, 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 the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 - Investor Presentation In continuation of our Letter No. HZL/2026-27/SECY/60 dated July 24, 2026, regarding the declaration of the Unaudited Standalone and Consolidated Financial Results of the Company for the first quarter ended June 30, 2026 (“Financial Results”), please find enclosed herewith a copy of the Investor Presentation issued in relation to the Financial Results. The same is also available on the website of the Company at www.hzlindia.com. This is for your information and records. Thanking You. Yours faithfully, For Hindustan Zinc Limited Aashhima V Khanna Company Secretary & Compliance Officer Encl: as above Hindustan Zinc Limited World’s Largest Integrated Zinc Producer Earnings Presentation Q1FY27 Cautionary Statement and Disclaimer The views expressed here may contain information derived from publicly available sources that have not been independently verified. No representation or warranty is made as to the accuracy, completeness, reasonableness, or reliability of this information. Any forward-looking information in this presentation including, without limitation, any tables, charts and/or graphs, has been prepared on the basis of a number of assumptions which may prove to be incorrect. This presentation should not be relied upon as a recommendation or forecast by Hindustan Zinc Limited. Past performance of Hindustan Zinc cannot be relied upon as a guide to future performance. This presentation contains 'forward-looking statements’ - that is, statements related to future, not past, events. In this context, forward-looking statements often address our expected future business and financial performance, and often contain words such as 'expects’, 'anticipates’, 'intends’, 'plans’, 'believes’, 'seeks’, or 'will’. Forward-looking statements by their nature address matters that are, to different degrees, uncertain. For us, uncertainties arise from the behaviour of financial and metals markets including the London Metal Exchange, fluctuations in interest and or exchange rates and metal prices; from future integration of acquired businesses; and from numerous other matters of national, regional and global scale, including those of environmental, climatic, natural, political, economic, business, competitive or regulatory nature. These uncertainties may cause our actual future results to be materially different that those expressed in our forward-looking statements. We do not undertake to update our forward-looking statements. We caution you that reliance on any forward-looking statement involves risk and uncertainties, and that, although we believe that the assumption on which our forward-looking statements are based are reasonable, any of those assumptions could prove to be inaccurate and, as a result, the forward-looking statement based on those assumptions could be materially incorrect. This presentation is not intended, and does not, constitute or form part of any offer, invitation or the solicitation of an offer to purchase, otherwise acquire, subscribe for, sell or otherwise dispose of, any securities in Hindustan Zinc or undertakings or any other invitation or inducement to engage in investment activities, nor shall this presentation (or any part of it) nor the fact of its distribution form the basis of, or be relied on in connection with, any contract or investment decision. HINDUSTAN ZINC LIMITED – 1Q FY27 INVESTOR PRESENTATION Sensitivity: Internal (C3) Index of Contents Key Highlights and Unique Positioning 04 Sustainability Update 09 Market Update and Operational Review 14 Project Update 20 Financial Review 25 Appendix 29 HINDUSTAN ZINC LIMITED – 1Q FY27 INVESTOR PRESENTATION Sensitivity: Internal (C3) Strong 1QFY27 Performance Builds Momentum for the Year Ahead Operational & Strategic FFiinnaanncciiaall 268 KT Highest-ever first-quarter mined Best-ever Revenue from metal production operations 260 KT ₹ 13,747 crore, up 77% YoY Refined metal production, up 4% YoY Highest-ever EBITDA 149 MT ₹ 8,074 crore, up 109% YoY Silver production, contributing c.46% towards overall profitability Record Net Profit ₹ 5,469 crore, up 145% YoY $ 851 per tonne Lowest zinc cost of production* Strong Free Cash Flow^ Secured mining lease ₹ 5,253 crore for REE & Yttrium block in ₹ 11 per share dividend Gundlupet, Karnataka 550% of face value Dividend payout of ₹ 4,648 crore *excluding royalty and lowest since underground transition ^free cash flow pre growth capex HINDUSTAN ZINC LIMITED – 1Q FY27 INVESTOR PRESENTATION REE: Rare Earth Elements Sensitivity: Internal (C3) Unique Positioning in Metals & Mining and Energy Transition Space Globally World’s Largest Integrated Zinc Producer World’s 2nd Largest Zinc & Lead Metal Reserves & Resources with 25+ years of mine life Hindustan Zinc Ranked 1st in Metals & Mining sector in S&P Peer 2 Global CSA 2025 for the 3rd consecutive year Peer 3 Asia’s first low carbon ‘green’ zinc producer Peer 4 1st Indian Company to join the prestigious International Council of Mining & Metals (ICMM) Peer 5 Among lowest cost World’s Largest Zinc Mine Among Top 10 Silver Zinc producers at Rampura Agucha producing mines globally Rampura Agucha Mine 1 Mine 2 Mine 2 Mine 3 Mine 3 Mine 4 Mine 4 Mine 5 Mine 5 Sindesar Khurd Source: Woodmac and World Silver Survey 2025 HINDUSTAN ZINC LIMITED – 1Q FY27 INVESTOR PRESENTATION CSA: Corporate Sustainability Assessment Sensitivity: Internal (C3) Our Unique Leadership Positioning In India Well-Positioned to Capitalize on the Country’s Strong Growth Trajectory c.74% domestic India’s only Consistently India’s only India’s only primary zinc integrated primary Zinc integrated rated AAA by market share with and listed Silver CRISIL Ratings producer of Zinc Alloy a consistent company Limited and Lead producer c.54% EBITDA margin Contribution to National Exchequer in 1QFY27 of c.₹ 6,450 crores Contribution to Rajasthan Exchequer in 1QFY27 of c.₹ 1,700 crores (including mining royalties) Positioning is based on FY26 Contribution to National Exchequer and Rajasthan Exchequer numbers are unaudited HINDUSTAN ZINC LIMITED – 1Q FY27 INVESTOR PRESENTATION Sensitivity: Internal (C3) Invested in Metals Of Future | Enabling the Energy Transition needs Accelerating clean energy adoption is set to drive unprecedented demand for critical minerals Zinc: building a greener future Silver: A Critical Metal for the Net-Zero Economy Silver serves as both an industrial metal and a Zinc plays a critical role in solar and wind financial asset. Its unique properties make infrastructure by protecting steel against corrosion. substitution difficult across many applications. Zinc's sustainability benefits support diverse sectors Silver is used in nearly every electronic system— including automotive, consumer products, energy, from telecommunications and infrastructure to agriculture and infrastructure. electric vehicles. Zinc batteries are emerging as an attractive energy Silver's unmatched conductivity and reflectivity make storage solution it indispensable for solar photovoltaics and other low- o Capable of long cycle life and long duration storage carbon technologies, driving growing demand across o Wide operating temperature range with minimal the clean energy transition. maintenance o Low cost per kilowatt hour (kwh) o Non-toxic and environmentally friendly o Highly recyclable and sustainable HINDUSTAN ZINC LIMITED – 1Q FY27 INVESTOR PRESENTATION Sensitivity: Internal (C3) Buildi [Showing first 8,000 characters — download PDF for full document]