CAS 7697-37-2 · K-REACH · Republic of Korea

Nitric acid under K-REACH

HNO3 · 硝酸

Status: Registered. Nitric acid is registered under K-REACH and listed as a Priority Existing Chemical (PEC). **Nitric acid IS on Korea TCCA Toxic Chemicals list**. **Korean Drug Management Act Cat II precursor scheduling**. NO active Korean AD/CVD case (verify against https://access.trade.gov/ and Korea Trade Commission before invoicing). Korea has substantial domestic nitric acid production (Hanwha Solutions Yeosu + Lotte Chemical Daesan + LG Chem Yeosu); verify the current Korean production-versus-consumption balance against KOSIS / KITA before relying on a structural-balance assertion. KCFTA preferential zero-duty applies for Chinese-origin imports.

K-REACH treats nitric acid with **dual-overhead: TCCA Toxic Chemicals + Korean Drug Management Act Cat II precursor compliance**. Korea has substantial domestic nitric acid production. NO active Korean AD/CVD case. **Nitric acid distinguishing pattern across all 5 regimes**: Ostwald process downstream of ammonia batch 37 + ammonium nitrate primary downstream (~75%) + closes ammonia batch 37 + DAP batch 11 + aniline batch 26 + caprolactam batch 14 chains + EU Drug Precursors Cat 3 (alongside acetone batch 15 + sulfuric acid batch 2) + EU Explosives Precursors Reg 2019/1148 + Acute Tox. 1 inhalation H330 + Skin Corr. 1A + Ox. Liq. 2 + China triple-permit chain (Hazardous + Highly Toxic + Easily-Made Drugs Cat 2; HEAVIEST IECSC compliance alongside sulfuric acid batch 2) + DHS CFATS + ATF explosives regulations + Australian Drug Control Act Cat II + Korean Drug Management Act Cat II.

Listing and threshold

Substance Nitric acid (CAS 7697-37-2), HNO3
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: full hazard profile matching REACH
  • Signal word: DANGER
  • **Listed in Korea TCCA Toxic Chemicals list**
  • **Korean Drug Management Act Cat II precursor list**
  • Korean Customs Service (KCS) HS code: 280800
  • Korea Occupational Safety and Health Act (KOSHA) workplace exposure standard: 2 ppm 8-hr TWA

Restrictions and conditions of use

  • **TCCA Toxic Chemicals Handling Permit at destination facility required**
  • **Korean Drug Management Act Cat II precursor compliance**
  • Chemical Accident Prevention Plan (CAPP) may be required
  • NO active Korean AD/CVD case
  • KCFTA preferential zero-duty applies

Importer obligations

The Korean importer of record must hold K-REACH registration. **Dual-overhead: TCCA Toxic Chemicals Handling Permit + Korean Drug Management Act Cat II precursor compliance**. Korea has substantial domestic nitric acid production (Hanwha Solutions Yeosu + Lotte Chemical Daesan + LG Chem Yeosu).

Required documents

  • K-REACH registration number on Korean side
  • Korean-language MSDS
  • Korean Customs Service (KCS) declaration with HS code 280800
  • **TCCA Toxic Chemicals Handling Permit** at destination facility
  • **Korean Drug Management Act Cat II precursor declaration**
  • 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.

  • **Dual-overhead: TCCA Toxic Chemicals Handling Permit + Korean Drug Management Act Cat II precursor compliance**
  • Korea has substantial domestic nitric acid production
  • NO active Korean AD/CVD case
  • KCFTA preferential zero-duty applies

Where to read next

For substance-level identifiers (formula, molecular weight, SMILES, InChIKey), GHS hazard profile, IMDG transport class, and full sourcing reference for nitric acid, see the CAS 7697-37-2 sourcing reference.

For grade-by-grade buying notes, freight maths, supplier-tier pricing, and a worked landed-cost example, the nitric acid 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.