Press Release

HZL/2026-27/SECY/63 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 - Press Release 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 a copy of the press release 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, the World's Largest Integrated Zinc Producer, announces Results for the First Quarter ended June 30, 2026 Record Quarterly Net Profit of ₹ 5,469 crore, up 145% YoY Highest-ever Quarterly EBITDA of ₹ 8,074 crore, up 109% YoY Key Highlights: ▪ Highest-ever first-quarter mined metal production of 268 KT for the fifth consecutive year ▪ Refined metal production stood at 260 KT, up 4% YoY ▪ Lowest quarterly zinc cost of production of $ 851 per tonne, better 16% YoY ▪ Silver production of 149 tonnes, flat YoY, co ntributing c.46% towards overall profitability ▪ Best-ever revenue from operations of ₹ 13,747 crore, up 77% YoY ▪ Industry-leading EBITDA margin of c.59% ▪ Strong free cash flow pre growth capex of ₹ 5,253 crore ▪ Renewable power consumption increased to 22% of the overall power consumption ▪ Secured mining lease for Gundlupet rare earth elements (REE) & Yttrium Block in Karnataka ▪ 1st Interim dividend of ₹ 11 per share, 550% of the face value equivalent to ₹ 4,648 crore ▪ Contributed c.₹ 6,450 crore to the national exchequer (including royalties) Leadership update: Mr. Amarendu Prakash appointed as the Chief Executive Officer and Whole-time Director The Board of Directors has appointed Mr. Amarendu Prakash as the Chief Executive Officer and Whole-time Director of Hindustan Zinc Limited, effective August 01, 2026. A distinguished leader with over three decades of experience in India's steel sector, he previously served as the Chairman & Managing Director of SAIL from 2023 to 2026. During his tenure, he led transformative initiatives spanning operational excellence, capacity expansion, digital transformation, and organisational performance across one of India's largest steel producers. Mr. Amit Gupta appointed as the Chief Financial Officer Mr. Amit Gupta assumed the role of Chief Financial Officer of Hindustan Zinc Limited with effect from June 01, 2026. A qualified Chartered Accountant with over two decades of experience, he brings deep expertise in strategic finance, capital allocation, business transformation, cost optimization, and corporate governance across Vedanta Group companies. ESG highlights: Our ESG initiatives reinforce operational resilience, risk mitigation, and long-term value creation while strengthening Hindustan Zinc’s sustainability leadership. ▪ Following Chanderiya, Rampura Agucha Mine became India’s first mine to receive the Zinc Mark certification ▪ Included in the Dow Jones Best-in-Class (DJBIC) Index (Emerging markets) for the first time (formerly known as Down Jones Sustainability Index) ▪ Deployed India’s first 250 metric tonne capacity electric crane at Zinc Smelter Debari ▪ Flagged off Rajasthan’s first and largest fleet of 41 electric buses for workforce transportation at Zinc Smelter Debari in partnership with Enviiro Wheels Mobility Private Ltd ▪ Featured in the TIME’s World’s Most Sustainable Companies 2026 List ▪ Signed MoU with Advantek Associates LLP & Aero Eagle Automobiles Private Ltd to explore Hydrogen fuel and other clean energy solutions ▪ Signed an MoU with The Energy and Resources Institute (TERI) to develop a 250-hectare ecological restoration project at the Chanderiya Lead Zinc Smelter Commenting on Hindustan Zinc’s performance, Arun Misra, Chief Executive Officer, said: "We have started the year on a strong note with our highest-ever first quarter mined metal production of 268 KT for the fifth consecutive year, reflecting the strength of our world-class assets and our relentless focus on operational excellence. Our debottlenecking initiatives continue to enhance refined metal production and reinforce our position as one of the world's lowest-cost zinc producers. As demand for zinc continues to be driven by infrastructure and the energy transition, we remain committed to delivering responsible growth and long-term value for our stakeholders." Amit Gupta, Chief Financial Officer, said: "Hindustan Zinc delivered a strong quarter, with net profit surging 145% YoY to a record ₹ 5,469 crore, driven by the highest-ever quarterly EBITDA of ₹ 8,074 crore, up 109% YoY. This performance reflects our unwavering focus on operational excellence, cost competitiveness and disciplined financial management. Backed by a strong balance sheet and prudent capital allocation, we remain well- positioned to deliver consistent growth while continuing to generate sustainable long-term value for our stakeholders." Financial Summary (In ₹ crore or as stated) 1Q 4Q Particulars FY2027 FY2026 Change FY2026 Change Sales1 Zinc 7,304 4,935 48% 6,997 4% Lead 1,086 872 25% 1,153 (6%) Silver 3,839 1,427 169% 4,032 (5%) Others 1,518 537 183% 1,362 11% Total 13,747 7,771 77% 13,544 1% EBITDA 8,074 3,860 109% 7,747 4% EBITDA Margin 59% 50% - 57% - Net Profit (after exceptional items) 5,469 2,234 145% 5,033 9% Earnings per Share2 12.9 5.3 145% 11.9 9% Mined Metal Production 268 265 1% 315 (15%) (‘000 MT) Refined Metal Production (‘000 MT) Total Refined Metal (Zinc & Lead) 260 250 4% 282 (8%) Zinc 213 202 6% 227 (6%) Lead 47 48 (2%) 55 (14%) Silver3 (in MT) 149 149 - 176 (16%) Sales (‘000 MT) Lead Concentrate 4, 5 10 - - 12 - Total Refined Metal 258 249 3% 282 (9%) (Zinc & Lead) Zinc 211 201 5% 228 (7%) Lead 47 48 (2%) 55 (14%) Silver (in MT) 149 145 2% 176 (16%) Wind Power (in million units) 133 134 (1%) 56 138% Zinc CoP ($/MT) 6 851 1,010 (16%) 903 (6%) Zinc LME ($/MT) 3,466 2,641 31% 3,241 7% Lead LME ($/MT) 1,954 1,947 0.4% 1,931 1% Silver LBMA ($/oz.) 73.2 33.7 117% 84.3 (13%) USD-INR (average) 94.58 85.57 11% 91.50 3% Note: all numbers reported are consolidated numbers unless otherwise mentioned 1. Including other operating income 2. ₹, not annualised 3. Silver occurs in Lead & Zinc ore and is recovered in the smelting and silver-refining processes 4. Includes silver equivalent of 9 MT in 1QFY27 and 16 MT in 4QFY26 5. Includes refined lead equivalent of 6 KT in 1QFY27 and 6 KT in 4QFY26 6. Cost of production (CoP) wherever referred is excluding royalty Financial Performance Revenue: ▪ Revenue from operations stood at ₹ 13,747 crore during the quarter, up 77% YoY, driven by higher metal prices, increased metal production, lead concentrate sale, higher by-product realisation, and a stronger dollar. EBITDA: ▪ EBITDA stood at ₹ 8,074 crore during the quarter, up 109% YoY, driven by increased metal production, higher metal prices, lower cost of production, lead concentrate sale, and a stronger dollar. ▪ The Company continues to maintain an attractive industry leading EBITDA margin of c.59% during the quarter, up c.900 bps YoY. Net Profit: ▪ During the quarter, net profit stood at ₹ 5,469 crore, up 145% YoY in line with record EBITDA. The effective tax rate for the quarter was 25.23%. Zinc Cost of Production (COP): ▪ Zinc COP excluding royalty stood at $ 851 per tonne during the quarter, [Showing first 8,000 characters — download PDF for full document]