CAS 7722-84-1 · K-REACH · Republic of Korea

Hydrogen peroxide (H2O2) under K-REACH

H2O2 · 过氧化氢

Status: Registered. Hydrogen peroxide is registered under K-REACH and listed as a Priority Existing Chemical (PEC). NOT on Korea TCCA Toxic Chemicals list. NOT on Korean Drug Management Act precursor list. NO active Korean AD/CVD case. Korea has substantial domestic H2O2 production (OCI Group + SKC + Solvay-Evonik Korea); structurally balanced. KCFTA preferential zero-duty applies for Chinese-origin imports.

K-REACH treats H2O2 as a routine PEC-registered substance with no TCCA overlay. Korea has substantial domestic H2O2 production. **Hydrogen peroxide distinguishing pattern across all 5 regimes**: anthraquinone process (~99% globally) + pulp + paper bleaching primary downstream (~50%) + HPPO chain (PO batch 29 + caprolactam batch 14 in new plants) + Wanhua Chemical Yantai HPPO process PO units (Penglai Industrial Park ~600,000 t/yr POCHP per public sources; verify against company materials before relying on the "world-leading" framing, Solvay also operates large HPPO H2O2 mega-plants serving multiple PO sites) (closes PO batch 29 HPPO chain) + Skin Corr. 1A + Ox. Liq. 1 (>70%) + Acute Tox. 4 + EU Explosives Precursors Reg 2019/1148 (H2O2 >12% conc restricted) + Solvay-Evonik-licensed-process.

Listing and threshold

Substance Hydrogen peroxide (H2O2) (CAS 7722-84-1), H2O2
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. Liq. 1 + Skin Corr. 1A (>70% conc) + Acute Tox. 4 oral / inhalation + Eye Dam. 1
  • Korea Occupational Safety and Health Act (KOSHA) workplace exposure standard: 1 ppm 8-hr TWA
  • NOT on Korea TCCA Toxic Chemicals list
  • Korean Customs Service (KCS) HS code: 284700

Restrictions and conditions of use

  • No TCCA Toxic Chemicals Handling Permit required
  • Korea Industrial Safety and Health Act (KOSHA) MSDS in Korean required
  • NO active Korean AD/CVD case
  • KCFTA preferential zero-duty applies

Importer obligations

The Korean importer of record must hold K-REACH registration. Korea has substantial domestic H2O2 production. Korean downstream consumers: SKC (HPPO PO chain), Hyosung Chemicals, Korean pulp + paper sector.

Required documents

  • K-REACH registration number on Korean side
  • Korean-language MSDS
  • Korean Customs Service (KCS) declaration with HS code 284700
  • China-Korea FTA Form CO

Common compliance traps

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

  • Korea has substantial domestic H2O2 production (OCI Group + SKC + Solvay-Evonik Korea)
  • KCFTA preferential zero-duty applies
  • NO active Korean AD/CVD case
  • NOT on TCCA Toxic Chemicals list

Where to read next

For substance-level identifiers (formula, molecular weight, SMILES, InChIKey), GHS hazard profile, IMDG transport class, and full sourcing reference for hydrogen peroxide (h2o2), see the CAS 7722-84-1 sourcing reference.

For grade-by-grade buying notes, freight maths, supplier-tier pricing, and a worked landed-cost example, the hydrogen peroxide (h2o2) 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.

Free download

Free PDF: the same MSDS verification template the Sourzi team uses to cross-reference factory documents against TSCA, REACH, AICIS, and CDR before booking.