Glencore, Korea Zinc, Nyrstar, Boliden, and Hindustan Zinc remain the five most-cited primary zinc ingot suppliers in 2026 buyer shortlists, alongside Trafigura and Votorantim as merchant smelters and a long tail of Indian and Chinese producers in the secondary tier.
Pure zinc ingot 99.99% / 99.995% grade is listed on Made-in-China.com at US$2,000-3,000 per tonne with 1-tonne MOQ as of 2026-07-10 [S4]; SHG (Special High Grade, 99.995% Zn min) remains the LME deliverable benchmark and the default spec for galvanizing, die-casting alloy feedstock, and brass-mill billet.
Purity grades and what each is actually used for
Galvanized-steel producers consume roughly 60% of primary zinc output and overwhelmingly specify SHG, because Fe and Pb tramp above 0.003% each will blister the coating bath; brass mills running Cu-Zn alloy accept High Grade or Intermediate, while [die-casting machine](https://sourcebyspec.com/encyclopedia/zinc-die-casting-machine.html) alloy shops feeding Zamak 3/5/7 require SHG to keep Fe under 0.03% and avoid cold-shut defects [S4].
Battery-grade zinc (99.998%+) carries a 15-25% premium over SHG and is a small but rising niche; primary producers typically divert a dedicated cell rather than post-process SHG, which is why the supplier pool for that grade is narrower.
The five primary producers buyers should know
Glencore runs integrated Zn-Pb mining and smelting across Kazakhstan (Kazzinc), Australia (Mount Isa), Peru (Iscaycruz), and Spain, with nameplate zinc output above 1 million tonnes per year and a smelter network that delivers LME-grade SHG plus by-product sulphuric acid. [S3]
Korea Zinc operates the Onsan refinery (≈430 kt/yr zinc) and supplies ultra-high-purity grades for the Korean battery and electronics chains, with the recently commissioned Youngpoong smelter capacity additions keeping the group among the top three non-Chinese primary suppliers.
Nyrstar (Trafigura-controlled since 2024) operates smelters in Belgium, the Netherlands, France, Spain, and the US Clarksville/Valcartier plants, focusing on SHG and continuous-galvanizing grades; Clarksville in Tennessee is the only major primary zinc smelter in the US, making it a strategic source for domestic [pressure transmitter](https://sourcebyspec.com/encyclopedia/pressure-transmitter.html) and galvanizing-line buyers needing non-import SHG.
Boliden runs the Kokkola (Finland) and Odda (Norway) zinc smelters, both on hydro power, producing low-carbon SHG that European OEMs increasingly specify for CBAM-driven carbon-content accounting.
Hindustan Zinc (Vedanta group) is India's only integrated primary producer, with mine output at Rampura Agucha, Sindesar Khurd, and Zawar feeding the Chanderiya, Dariba, and Debari smelters, totalling more than 800 kt/yr zinc metal capacity, and it is the dominant source for South Asian galvanizers and brass mills.
Secondary tier: merchants, recyclers, and regional mills
Trafigura, Votorantim, and Dowa Holdings appear consistently in merchant and recycled-zinc slugs, with Trafigura's Myra Falls and port-side zinc concentrate flows plus Votorantim's Tres Marias and Juiz de Fora smelters in Brazil serving Latin American galvanizers.
India's secondary market is fragmented: ScrapMonster's Rajkot directory shows Ashirwad Engicast as one regional dealer-cum-mist-nozzle manufacturer, sourcing zinc ingot and scrap since October 2017 and casting components locally [S3]; the broader India zinc category on that platform lists 156 companies, with Gujarat and Rajkot acting as secondary-alloy feedstock hubs.
China's pure-zinc ingot supplier pool on Made-in-China.com publishes direct-from-mill pricing at US$2,000-3,000/tonne for 99.99-99.995% grades with 1-tonne MOQ, indicating active small-lot export competition against the integrated majors [S4]; buyers running just-in-time [flow meter](https://sourcebyspec.com/encyclopedia/flow-meter.html) or instrument plants can quote these for spot tonnage, though container consolidation and LME-brand certification remain the gating items.
Selection criteria: what actually separates a usable supplier
Four decision criteria separate a true SHG primary from a marginal secondary source: LME brand registration, certified assay to ASTM B6 or ISO 752, traceable chain-of-custody for recycled-content claims, and a Pb/Cd tramp test report per heat. [S1]
LME brand registration matters because non-registered ingot cannot be delivered against LME zinc warrants, forcing buyers to take physical premium risk; Korea Zinc, Nyrstar (Clarksville, Auby, Balen), Boliden (Kokkoda, Odda), and Hindustan Zinc (Chanderiya) all hold active LME-listed brands as of the 2026 reference list.
ASTM B6 grade designation must appear on the mill cert: SHG is Zn 99.995% min with Pb ≤0.003%, Cd ≤0.003%, Fe ≤0.002%, Sn ≤0.001%, and total impurities ≤0.005%; Prime Western at 98.5% allows up to 1.5% total impurities and is unsuitable for continuous galvanizing.
Recycled-content and carbon footprint are now a procurement gate: Boliden's hydro-powered smelters publish EPD figures below 2.0 tCO2e/t zinc, well under the Asian coal-powered average near 4.5 tCO2e/t, and CBAM-exposed EU buyers should request mill-level declarations rather than rely on country averages.
Comparison of supplier types against four buying criteria
On purity and LME-brand depth, integrated majors (Glencore, Korea Zinc, Nyrstar, Boliden, Hindustan Zinc) score highest; merchant smelters and Chinese mill-direct exporters are strong on price and lead-time but require manual brand verification. [S3]
On carbon footprint, European hydro-powered smelters (Boliden Kokkola/Odda) lead; on cost-per-tonne at spot, Chinese mill-direct 99.995% at US$2,000-3,000/tonne is the most aggressive published band [S4]; on regional logistics and short rail/road haul, Hindustan Zinc for South Asia, Nyrstar Clarksville for North America, and the Korean Zinc Onsan complex for North-East Asia set the benchmark.
Limits, failure modes, and contract pitfalls
Three failure modes hit zinc ingot buyers most often: tramp-element drift on cheaper 99.99% lots that fail ASTM B6 SHG limits, moisture-driven white-rust corrosion during monsoon shipping, and 1-tonne MOQ premiums on small-lot mill-direct orders that erase the headline price advantage [S4].
White rust is preventable with VCI-film wrap and desiccant in the container plus max 60% RH storage at the receiving bay; this is a logistics specification, not a material property, and a competent freight forwarder will quote it.
Mill-direct Chinese 99.995% at the published US$2,000-3,000/tonne band typically prices EXW or FOB Chinese port with 1-tonne MOQ, meaning freight, insurance, customs duty, and LME-brand premium still apply on the buyer side; a true landed-cost comparison against, say, Boliden Kokkola FOB North Sea must include all four.
Standards, sourcing signals, and what to track next
Primary reference standards for zinc ingot procurement in 2026 remain ASTM B6 (US), ISO 752 (international), and LME Special High Grade rules; LME zinc deliverable shape is 25 kg nominal ingot or jumbo 2000 kg block, both must be marked with producer, brand, and grade. [S4]
For broader non-ferrous sourcing context across base-metal value chains, the zinc ingot market spec band and end-use map lays out the same SHG/Prime Western split against galvanizing, die-casting, and brass demand; the aluminum ingot capacity and price-stack map is a useful cross-check on the parallel P1020A and A7.0 alloy supply chain; for manganese-ore buyers in the same base-metals procurement stack, the manganese ore supply chain and grade map is the matching reference.
Trackable next-node signals: (1) LME zinc cash-3M spread moves that signal physical tightness; (2) Clarksville (Nyrstar) restart reliability updates, since the US domestic SHG pool hinges on that single plant; (3) Made-in-China.com 99.995% ingot band drift below US$2,200/tonne, which historically pulls spot Asia-Pacific pricing.
Component reference pages worth checking: zinc die casting machine, pressure transmitter, and flow meter.