</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
3810.90.20.00/Zinc Chloride Soldering Flux Paste/Japan

Zinc Chloride Soldering Flux Paste from Japan

Water-based paste of zinc chloride and ammonium chloride for soldering galvanized steel. Acts as inorganic flux to clean surfaces during electrical connections, under 3810.90.2000. Residue must be washed post-use.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Calculate with your customs valueVerify classification with AI

Import Tips

• Confirm no organic activators; ammonium counts as inorganic

• Corrosive labeling (UN 2331); provide neutralization procedure