CAS 75-09-2 · K-REACH · Republic of Korea

Dichloromethane (methylene chloride, DCM) under K-REACH

CH2Cl2 · 二氯甲烷

Status: Registered. DCM is registered under K-REACH and listed as a Priority Existing Chemical (PEC). Korean GHS classification matches REACH (Carc 2 plus STOT SE 3). **DCM IS on Korea TCCA Toxic Chemicals list**: TCCA Toxic Chemicals Handling Permit at destination facility required (parallel layer to K-REACH chemical registration; mirror of Carc-2-plus-IARC-2A pattern). NOT on Korean Drug Management Act precursor list. NO active Korean AD/CVD case on Chinese-origin DCM. Korea has substantial domestic DCM production (LG Chem, Hanwha Solutions, Lotte Chemical chlor-alkali integrated capacity); structurally balanced. KCFTA preferential zero-duty applies for Chinese-origin imports.

K-REACH treats DCM as a routine PEC-registered substance but **TCCA Toxic Chemicals Handling Permit at destination facility is the dominant practitioner overhead**. Korea has substantial domestic DCM production at chlor-alkali integrated complexes. IARC Group 2A (since 2017 Monograph 110) drives long-term workplace surveillance. **DCM distinguishing pattern across all 5 regimes**: Carc 2 plus STOT SE 3 plus IARC Group 2A since 2017 Monograph 110 + EU Annex XVII Restriction 59 paint-stripper ban (Reg 276/2010) + US EPA TSCA Section 6 Final Risk Management Rule April 2024 paint-stripper ban + OSHA Methylene Chloride-specific 29 CFR 1910.1052 PEL 25 ppm + Cal Prop 65 carcinogen 1 April 1988 + chlor-alkali batch 45 plus methanol batch 3 hydrochlorination route (~95 percent globally) + Korea TCCA Toxic Chemicals + 0% China VAT export rebate.

Listing and threshold

Substance Dichloromethane (methylene chloride, DCM) (CAS 75-09-2), CH2Cl2
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: Carc. 2 (H351), STOT SE 3 (H335), Skin Irrit. 2 (H315), Eye Irrit. 2 (H319)
  • Signal word: WARNING. GHS pictograms: GHS07 plus GHS08
  • KOSHA workplace exposure standard: 50 ppm 8-hr TWA
  • **Listed in Korea TCCA Toxic Chemicals list**
  • NOT on Korean Drug Management Act precursor list
  • Korean Customs Service (KCS) HS code: 290312
  • **IARC: Group 2A (probably carcinogenic to humans) since 2017 IARC Monograph 110 (verify against https://monographs.iarc.who.int/ before relying)**

Restrictions and conditions of use

  • **TCCA Toxic Chemicals Handling Permit at destination facility required**
  • Chemical Accident Prevention Plan (CAPP) may be required at handling facilities
  • KOSHA MSDS in Korean required at workplace
  • NO active Korean AD/CVD case on Chinese DCM currently
  • KCFTA preferential zero-duty applies (HS 290312)

Importer obligations

Korean importer of record must hold K-REACH registration. **TCCA Toxic Chemicals Handling Permit at destination facility is the dominant practitioner-facing overhead**. Korea has substantial domestic DCM production (LG Chem, Hanwha Solutions, Lotte Chemical chlor-alkali integrated capacity).

Required documents

  • K-REACH registration number on Korean side
  • Korean MSDS reflecting H315 / H319 / H335 / H351
  • KCS declaration with HS 290312
  • **TCCA Toxic Chemicals Handling Permit** at destination facility
  • 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.

  • **TCCA Toxic Chemicals Handling Permit at destination facility is the dominant practitioner overhead**
  • IARC Group 2A drives long-term workplace surveillance
  • KCFTA preferential zero-duty applies
  • NO active Korean AD/CVD case on Chinese DCM
  • EU Annex XVII Restriction 59 + US TSCA Section 6 April 2024 paint-stripper bans set global trajectory

Where to read next

For substance-level identifiers (formula, molecular weight, SMILES, InChIKey), GHS hazard profile, IMDG transport class, and full sourcing reference for dichloromethane (methylene chloride, dcm), see the CAS 75-09-2 sourcing reference.

For grade-by-grade buying notes, freight maths, supplier-tier pricing, and a worked landed-cost example, the dichloromethane (methylene chloride, dcm) 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

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