CAS 7775-09-9 · K-REACH · Republic of Korea

Sodium chlorate (NaClO3) under K-REACH

NaClO3 · 氯酸钠

Status: Registered. Sodium chlorate is registered under K-REACH. **Korea TCCA Toxic Chemicals list scheduling-potential** (verify against the current TCCA Toxic Chemicals list at https://www.nics.go.kr/ https://www.nics.go.kr/ before relying). NO active Korean AD/CVD case on Chinese-origin sodium chlorate currently. KCFTA preferential zero-duty applies for Chinese-origin imports. Korea is a significant sodium chlorate consumer market (Korean pulp + paper sector + minor herbicide / defoliant) with significant Chinese-origin import dependency.

K-REACH treats sodium chlorate as a registered substance with **TCCA Toxic Chemicals Handling Permit overlay-potential (verify against NICS)**. Korea structurally net-importer with significant Chinese-origin import dependency. NO active Korean AD/CVD case. KCFTA preferential zero-duty. **NaClO3 distinguishing pattern across all 5 regimes**: Production by electrolysis of brine (chlor-alkali co-product chain alongside chlorine + NaOH); pulp + paper ClO2 ECF bleaching ~85% of global consumption + uranium ore leaching + agricultural defoliant (where still permitted) + emergency oxygen-supply chemical-oxygen-generators (submarine + aircraft "oxygen candles") + leather + textile bleaching + match heads downstream chains; **EU Annex XVII Restriction Entry 65 BANS consumer weed-killer placement + EU Plant Protection Products Regulation non-renewal Reg (EC) 1039/2008 effective 10 May 2010** (no longer authorised as PPP active in EU); **EPA FIFRA herbicide / defoliant active in US (soya + cotton harvest desiccation) + APVMA herbicide / defoliant in Australia + Australian Security-Sensitive oxidiser controls (ASIO / Department of Home Affairs) + China Hazardous Chemicals Catalogue 2015 + State Council Decree 591 + Korean TCCA scheduling-potential**; UN 1495 Class 5.1 PG II oxidizer across all transport regimes (ADR + DOT 49 CFR + GB 12268 + ADG + Korean DOT-equivalent); Ox. Sol. 1 + Acute Tox. 4 oral + Eye Irrit. 2 + Aquatic Chronic 2 across all jurisdictions; IARC not classified; major global producers Erco Worldwide (Canada Saskatoon SK + North Vancouver BC + Magog QC) + Akzo Nobel / Nouryon (Sweden Alby + Finland Joutseno) + Kemira (Finland Joutseno) + Ercros (Spain Sabinanigo) + Westlake Chemicals (USA) + Shandong Lubei Enterprise (Wudi Shandong) + Hebei Yuanli + Inner Mongolia Junzheng + Sichuan Yibin Tianyuan.

Listing and threshold

Substance Sodium chlorate (NaClO3) (CAS 7775-09-9), NaClO3
Regime Korea Act on the Registration and Evaluation of Chemicals (Act No. 11789, "K-REACH" amended 2018)
Jurisdiction Republic of Korea
Status Registered
Tonnage threshold K-REACH registration required for existing chemicals manufactured or imported >1 tonne/year (verified per Korean Ministry of Environment / NIER guidance, https://chemical.chemlinked.com/chempedia/k-reach; threshold for new substances was reduced from 0.1 t/y to 1 t/y effective 1 January 2025 per K-REACH 2025 amendment)

Classifications under this regime

  • Korean GHS classification: Ox. Sol. 1 + Acute Tox. 4 oral + Eye Irrit. 2 + Aquatic Chronic 2 (verify against current MoE / NIER GHS before relying)
  • TCCA Toxic Chemicals scheduling-potential (verify against https://www.nics.go.kr/ before relying)
  • Korean Customs Service (KCS) HS code: 282911
  • Korean Industrial Safety + Health Act OEL: not specifically established for sodium chlorate (chlorate dust may fall under PNOR-equivalent default; verify against current MoEL OEL list before relying)
  • IARC: Not classified

Restrictions and conditions of use

  • TCCA Toxic Chemicals Handling Permit may be required (verify against https://www.nics.go.kr/ before invoicing)
  • KOSHA MSDS in Korean required at workplace (oxidizer + acute oral toxicity + aquatic toxicity)
  • NO active Korean AD/CVD case on Chinese-origin sodium chlorate
  • KCFTA preferential zero-duty applies (HS 282911)
  • Korean DOT-equivalent UN 1495 Class 5.1 PG II oxidizer transport requirements

Importer obligations

Korean importer of record must hold K-REACH registration + **TCCA Toxic Chemicals Handling Permit at destination (verify against NICS database)**. Korea structurally a net-importer with significant Chinese-origin import dependency for pulp + paper sector.

Required documents

  • K-REACH registration number on Korean side
  • TCCA Handling Permit at destination (where in scope)
  • Korean MSDS (Ox. Sol. 1 + Acute Tox. 4 oral + Eye Irrit. 2 + Aquatic Chronic 2)
  • KCS declaration with HS 282911
  • China-Korea FTA Form CO
  • Korean DOT-equivalent UN 1495 Class 5.1 PG II oxidizer transport documentation

Common compliance traps

The pitfalls that have bitten importers on this lane in the past. None of these is theoretical.

  • TCCA Toxic Chemicals Handling Permit may be required at destination (verify against https://www.nics.go.kr/)
  • KCFTA preferential zero-duty applies
  • NO active Korean AD/CVD case
  • **Korean pulp + paper sector + minor herbicide / defoliant downstream chains**
  • Korea structurally net-importer with significant Chinese-origin import dependency
  • Korean DOT-equivalent UN 1495 Class 5.1 PG II oxidizer

Where to read next

For substance-level identifiers (formula, molecular weight, SMILES, InChIKey), GHS hazard profile, IMDG transport class, and full sourcing reference for sodium chlorate (naclo3), see the CAS 7775-09-9 sourcing reference.

For grade-by-grade buying notes, freight maths, supplier-tier pricing, and a worked landed-cost example, the sodium chlorate (naclo3) cornerstone hub covers the full sourcing chain.

For the structure and history of K-REACH, see the K-REACH glossary entry.

Need cross-jurisdiction compliance support on this substance? Run it through the REACH / TSCA / IECSC / AICIS / K-REACH checker, or send us the substance and the destination and we will quote FOB China and CIF / DDP landed including the regulatory work on the destination side.

Read next

Cross-jurisdiction profile and sourcing references

Referenced in

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