Phthalic anhydride under K-REACH
C8H4O3 · 邻苯二甲酸酐
Status: Registered. Phthalic anhydride 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 on Chinese-origin phthalic anhydride (verify against the Korea Trade Commission portal before invoicing). Korea has domestic phthalic anhydride production (Aekyung Petrochemical Ulsan and OCI Group; verify each company-site pair against the producer's public website before quoting nameplate or share). KCFTA preferential zero-duty applies for Chinese-origin imports.
K-REACH treats phthalic anhydride as a routine PEC-registered substance with no TCCA overlay. Korea has substantial domestic phthalic anhydride production. NO active Korean AD/CVD case. KCFTA preferential zero-duty supports Chinese-origin supplemental supply. **Phthalic anhydride distinguishing pattern across all 5 regimes**: closes ortho-xylene batch 21 OX isomer chain via OX oxidation route + Resp. Sens. 1 (H334) sensitiser pattern (similar to MDI batch 30 + TDI batch 31) + downstream phthalate-plasticizer cascade (DOP / DEHP + DBP + BBP + DIBP all on REACH SVHC + Annex XIV) + UPR + alkyd resin chains + Aoxing Yangzhou + Sinopec + Tianjin Petrochem leadership; phthalate plasticizer transition to non-phthalate alternatives (DOTP, DINCH, DPHP) post-EU SVHC + Annex XIV listings.
Listing and threshold
| Substance | Phthalic anhydride (CAS 85-44-9), C8H4O3 |
|---|---|
| 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: Acute Tox. 4 oral / inhalation + Eye Dam. 1 + Skin Sens. 1 + Resp. Sens. 1 + STOT SE 3
- Signal word: DANGER
- Korea Occupational Safety and Health Act (KOSHA) workplace exposure standard: 1 ppm 8-hr TWA
- NOT on Korea TCCA Toxic Chemicals list
- NOT on Korean Drug Management Act precursor list
- Korean Customs Service (KCS) HS code: 291735
Restrictions and conditions of use
- No TCCA Toxic Chemicals Handling Permit required
- No Chemical Accident Prevention Plan (CAPP) required
- Korea Industrial Safety and Health Act (KOSHA) MSDS in Korean required at workplace
- NO active Korean AD/CVD case on Chinese-origin phthalic anhydride currently
- KCFTA preferential zero-duty applies to Chinese-origin phthalic anhydride (HS 291735)
Importer obligations
The Korean importer of record must hold K-REACH registration. Korea has substantial domestic phthalic anhydride production (Aekyung Petrochemical Ulsan, OCI Group); supplemental imports flow during plant outages.
Required documents
- K-REACH registration number on Korean side (registrant or OR-appointed)
- Korean-language MSDS compliant with Korean GHS
- Korean Customs Service (KCS) declaration with HS code 291735
- China-Korea FTA Form CO certificate of origin for preferential treatment
Common compliance traps
The pitfalls that have bitten importers on this lane in the past. None of these is theoretical.
- Korea has substantial domestic phthalic anhydride production (Aekyung Petrochemical Ulsan, OCI Group)
- KCFTA preferential zero-duty applies; verify producer-specific eligibility
- No active Korean AD/CVD case on Chinese phthalic anhydride currently
- 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 phthalic anhydride, see the CAS 85-44-9 sourcing reference.
For grade-by-grade buying notes, freight maths, supplier-tier pricing, and a worked landed-cost example, the phthalic anhydride 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
Regulatory
Phthalic anhydride under REACH
European Union listing status, classifications, importer obligations.
Regulatory
Phthalic anhydride under TSCA
United States of America listing status, classifications, importer obligations.
Regulatory
Phthalic anhydride under IECSC
People's Republic of China listing status, classifications, importer obligations.
Regulatory
Phthalic anhydride under AICIS
Australia listing status, classifications, importer obligations.
Glossary
K-REACH, K-REACH
South Korean Act on the Registration and Evaluation of Chemicals, the Korean equivalent of EU REACH. Requires registration of substances manufactured in or imported into Korea above 1 tonne per year. Administered by the Ministry of Environment through NIER. Includes phase-in registration tiers, joint submission requirements, and a designated 'Only Representative' mechanism for non-Korean manufacturers.
Referenced in
4 pages across the Sourzi moat
This term shows up in 4 regulatory pages. Sample backlinks per content type below.
Regulatory (4)
Phthalic anhydride under REACH
European Union compliance profile for Phthalic anhydride.
Phthalic anhydride under TSCA
United States of America compliance profile for Phthalic anhydride.
Phthalic anhydride under IECSC
People's Republic of China compliance profile for Phthalic anhydride.
Plus 1 more regulatory pages.
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.