CAS 7440-66-6 · K-REACH · Republic of Korea

Zinc metal (Zn) under K-REACH

Zn · 锌

Status: Registered. Zinc metal is registered under K-REACH (massive metal exemption may apply). NOT on Korea TCCA Toxic Chemicals list at refined zinc level (verify against the current TCCA Toxic Chemicals list at https://www.nics.go.kr/ before relying). **Korea Zinc Co. (Onsan Ulsan smelter) is the world's largest single-site zinc smelter** (>650,000 tpa); Korea is structurally a net-exporter of refined SHG zinc. KCFTA preferential zero-duty applies for Chinese-origin imports. Korea Trade Commission has historic AD/CVD on Chinese-origin downstream zinc-coated steel products (verify per case + per producer against https://www.ktc.go.kr/ before invoicing).

K-REACH treats zinc metal as a routine registered substance with no TCCA overlay (massive metal exemption may apply). **Korea Zinc Co. (Onsan Ulsan smelter) is the world's largest single-site zinc smelter (>650,000 tpa); Korea is structurally a net-exporter of refined SHG zinc** with Chinese-origin downstream zinc-coated steel imports subject to Korea Trade Commission AD/CVD scope determination. **Zn distinguishing pattern across all 5 regimes**: LME Special High Grade Zinc (SHG, ≥99.995% Zn) + COMEX + SHFE benchmark contracts; primary mine production via zinc-lead sulphide ore (sphalerite ZnS) flotation + secondary scrap + galvaniser-EAF-dust recycling ~30%; pyrometallurgical Imperial Smelting Furnace (ISF) and dominant electrolytic refining (RLE roast-leach-electrowinning); ~50% galvanising (hot-dip + continuous-galvanising-line for automotive + construction steel) + ~17% die-cast (Zamak / ZA) + ~17% brass + bronze + ~16% battery (alkaline + Zn-air) + ~6% chemicals (ZnO + ZnSO4 + ZnCl2) downstream; **multiple US + EU + Australian + Korean + Canadian AD/CVD measures on Chinese-origin downstream zinc-coated steel PRODUCTS (corrosion-resistant + galvanised + galvalume + galvanneal) across multiple cases (verify per case + per producer at access.trade.gov + EUR-Lex + industry.gov.au/anti-dumping-commission + ktc.go.kr + Canada Border Services Agency)**; **Section 232 US steel tariffs (25%, March 2018, Proclamation 9705) apply to galvanised steel imports as steel derivatives**; NOT in CBAM Phase 1 scope (CBAM covers iron / steel + aluminium, NOT zinc); Aquatic Acute 1 + Chronic 1 in particulate / powder form + IARC not classified + UN 1383 Class 4.2 PG II for zinc powder / dust (massive metal NOT regulated); major non-Chinese producers Korea Zinc (Onsan Ulsan smelter, world's largest) + Nyrstar (Australia Hobart TAS + Port Pirie SA + USA Clarksville TN + Belgium Balen + Netherlands Budel) + Boliden (Sweden Ronnskar + Finland Kokkola + Ireland Tara Mines) + Hindustan Zinc (India) + Teck Resources (Canada Trail BC + Alaska Red Dog) + Glencore (integrated) + MMG (Australia Dugald River QLD + Peru Las Bambas); **China is the world's largest zinc refiner (~45% global share)** (Zhuzhou Smelter Group Hunan Zhuzhou + Yunnan Chihong Zinc Germanium Yunnan Qujing + Hechi Nanfang Nonferrous Guangxi + Liuzhou China Tin Guangxi + Shaanxi Dongling Zinc Industry Baoji + Bayannur Zijin Wuxin Inner Mongolia); **Australia is the world's largest zinc-concentrate producer** (MMG Dugald River QLD + Glencore Mount Isa QLD + South32 Cannington QLD).