CAS 1305-62-0 · IECSC · People's Republic of China

Calcium hydroxide (hydrated lime) under IECSC

Ca(OH)2 · 氢氧化钙

Status: Listed. Calcium hydroxide is on the IECSC public portion. **NOT on China's Catalog of Hazardous Chemicals at industrial-grade purity** (verify against the most recent MEE Catalog of Hazardous Chemicals before relying; lower hazard profile than chlor-alkali products). NOT on Highly Toxic Chemicals Catalog. NOT on Easily-Made Drugs Catalog. **China VAT export rebate** for calcium hydroxide (HS 252220) per current inorganic chemicals chapter rebate schedule (verify the rate against the most recent MOF / GACC rebate notice before invoicing). China dominates global lime capacity (verify percent-of-global share against ICIS or USGS Mineral Commodity Summaries before quoting; prior reports cited China at well above 50 percent of global ~430 Mt/yr lime capacity) led by Sinoma multi-site, Anhui Conch Cement Group lime sister capacity, Shandong Chongqi Lime, Hebei Yanshan Lime, multiple regional limestone-quarry operators.

Calcium hydroxide is comfortably IECSC-listed; typically NOT on Catalog of Hazardous Chemicals at industrial grade. NOT on Highly Toxic, NOT on Easily-Made Drugs. **China VAT export rebate** rate per current schedule (verify before invoicing). China dominates global lime capacity. Production: hydration of quicklime.

Listing and threshold

Substance Calcium hydroxide (hydrated lime) (CAS 1305-62-0), Ca(OH)2
Regime China Inventory of Existing Chemical Substances (IECSC), administered by the Ministry of Ecology and Environment (MEE)
Jurisdiction People's Republic of China
Status Listed
Tonnage threshold No new-substance threshold. Hazardous Chemicals Operation Permit not typically required

Classifications under this regime

  • NOT typically on Catalog of Hazardous Chemicals at industrial-grade purity (verify against the most recent MEE Catalog before relying)
  • NOT on Highly Toxic Chemicals Catalog
  • NOT on Easily-Made Drugs Catalog
  • GB / GB-T specification framework (verify the current calcium-hydroxide-specific GB / GB-T standard at https://www.codeofchina.com/ before relying)
  • GB/T 17519-2013 Chinese SDS standard
  • GACC HS code: 252220
  • GB 6944-2012 transport: NOT regulated

Restrictions and conditions of use

  • Hazardous Chemicals Operation Permit not typically required (verify against the most recent MEE Catalog before relying)
  • **China VAT export rebate** rate per current inorganic chemicals chapter schedule (verify against the most recent MOF / GACC rebate notice before invoicing)
  • GB/T 17519 Chinese SDS required

Importer obligations

For Chinese-origin calcium hydroxide exported abroad, no IECSC obligation falls on the foreign importer. Major Chinese producers: Sinoma multi-site, Anhui Conch Cement Group lime sister capacity, Shandong Chongqi Lime, Hebei Yanshan Lime, multiple regional limestone-quarry operators.

Required documents

  • GACC export declaration HS 252220
  • GHS Chinese SDS per GB/T 17519

Common compliance traps

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

  • Catalog of Hazardous Chemicals status (verify against the most recent MEE Catalog before relying)
  • **China VAT export rebate** rate (verify against the most recent MOF / GACC rebate notice before invoicing)
  • NOT on Highly Toxic, NOT on Easily-Made Drugs
  • Major Chinese producers: Sinoma multi-site, Anhui Conch Cement Group lime sister capacity, Shandong Chongqi Lime, Hebei Yanshan Lime
  • Production: hydration of quicklime (CaO + H2O); upstream limestone calcination
  • **FGD plus water-treatment plus construction plus steel-slag downstream chains** dominate Chinese consumption

Where to read next

For substance-level identifiers (formula, molecular weight, SMILES, InChIKey), GHS hazard profile, IMDG transport class, and full sourcing reference for calcium hydroxide (hydrated lime), see the CAS 1305-62-0 sourcing reference.

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

For the structure and history of IECSC, see the IECSC 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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