Hindustan Zinc is an integrated zinc-lead-silver converter whose earnings are driven by mined volume, refined metal realisation, by-product credits and the cost of power and coal. The Q2 FY27 result is the clearest demonstration: revenue INR15,093 crore, EBITDA INR9,285 crore, PAT INR6,412 crore, a 62% EBITDA margin, and zinc cost of production of USD703 per ton. H1 revenue was INR28,840 crore, EBITDA INR17,359 crore and PAT INR11,881 crore. Silver contributed about 45% of H1 profitability, so the earnings base is not purely zinc. Management cut FY27 zinc cost guidance to USD825-850 per ton from USD975-1,000. That is guidance, not a permanent cost floor. The Q2 number benefited from by-product realisation, especially sulphuric acid, and management flagged roughly USD50 per ton of geopolitical cost escalation. The operating leverage case therefore rests on volume and mix, not just a lower cost print.
The business economics are built on ore grades, captive power, renewable share and by-product credits. Domestic coal was 32% of coal use in Q2 and renewable energy was 27% of power. Management intends 35% renewable in coming quarters; the prior 70% by FY28 commitment was not restated in the Q2 call. Every 2% renewable increase was previously quantified at about USD1.5 per ton of cost reduction, but that is a prior management estimate, not a Q2 result. The cost advantage is real but cyclical because silver and acid credits move with prices. The company's domestic position in primary zinc and lead remains the anchor: it sells most of its refined zinc in India, holds the dominant primary lead share, and is India's only integrated primary silver producer.
The earnings path has three separate tests. First, FY27 silver guidance of 680 tons was maintained; Q2 saleable silver was 173 tons and H1 was 340 tons, leaving 340 tons for H2. Second, the prior FY27 refined metal guidance of 1.1 million tons was not restated on the Q2 call, so delivery is an open test. Q2 mined metal rose 5% and refined metal 7% year on year, which is supportive but not proof. Third, the cost guide of USD825-850 assumes by-product credits and coal costs do not reverse. The 250 KTPA Debari project has engineering and procurement almost complete and mine development underway; prior completion is Q2 FY29. The 10 Mtpa tailings plant is progressing; Q1 guidance put output at 30-35 kt zinc with a 6-8 month ramp, below an earlier 100 kt disclosure. The 650 KT phase is not approved; the Q1 target was board approval in Q3 FY27, indicative capex of INR24,000-25,000 crore, and 36 months of construction. Fertiliser and hot acid leaching were guided for Q2 FY27 and Q1 FY28 but were not updated on the Q2 call.
Capital allocation is a genuine strength at this point. Net cash was INR11,268 crore at Q2 and H1 free cash flow before growth capex was INR6,389 crore. Management's April 2026 framing was INR45,000-50,000 crore of pre-growth free cash flow over five years against INR32,000-35,000 crore of capex. The earlier research figures of INR55,000-65,000 crore and INR40,000-50,000 crore are not supported by the supplied documents. The balance sheet gives headroom, but management has kept debt as an option for the larger 2x phases. The dividend policy of a minimum 30% of profit and 5% of reserves was unchanged in the prior call, and the Q1 interim dividend was INR11 per share. This is not a balance-sheet-constrained growth story today; the constraint is project delivery and commodity price.
Management delivery is stronger on cost and cash than on volumes and project dates. FY26 silver and refined metal guidance was cut mid-year and then missed. The phase-2 650 KT approval slipped from a 30-45 day announcement in June 2025 to a Q3 FY27 board target. The fertiliser plant moved from early Q2 FY27 to a phased start with full DAP/NPK in Q1 FY28. The 250 KTPA and tailings projects remain within their prior windows so far, but neither has delivered production. The Q2 call under CEO Amarendu Prakash did not disclose a strategic shift. We infer that execution credibility should be judged on the next two quarters of volume and on whether the 650 KT approval and the fertiliser/HAL commissioning are confirmed.
Falsifiers are specific. H2 refined output below the prior 1.1 million ton path would weaken the volume case. FY27 silver below 680 tons would hit the segment contributing about 45% of H1 profit. Zinc cost above USD825-850 without offsetting by-product credits would compress the record margin. A 250 KTPA slip beyond Q2 FY29 or a tailings slip beyond Q4 FY28 would defer the capacity additions. Failure to receive 650 KT board approval in Q3 FY27 would push the larger 2x phase further out. A silver price correction would hit earnings disproportionately because hedging covers only 10-20% of volumes. Mining lease renewals in 2030 remain a structural unknown. No price target is used.
companyname: Hindustan Zinc Limited ticker: HINDZINC sector: Mining & Metals / Base Metals Hindustan Zinc is the world's largest integrated zinc producer and India's only primary zinc-lead-silver producer. It mines sulfide ore in Rajasthan, smelts and refines it into zinc, lead, and silver, and sells the output mainly in India plus about 30% of refined zinc to more than 40 countries. The company is a subsidiary of Vedanta Limited, which holds 60.71%, with the Government of India holding 27.92% ...
Read the full report →capex, management upgrade
Explicit forward guidance in the Q2 FY27 call is limited to FY27 zinc cost of production of USD825-850 per ton and FY27 silver production of 680 tons. Management also said it intends renewable energy to reach 35% of power consumption in coming quarters. The call did not restate FY27 refined metal volume guidance or any FY28 production target.
Guidance maintainedoverdeliver
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