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3824.99.39.90/Cryolite-Sodium Fluosilicate Flux Powder/Japan

Cryolite-Sodium Fluosilicate Flux Powder from Japan

Synthetic cryolite (sodium aluminum fluoride) blended with sodium fluosilicate for aluminum foundry fluxes to reduce metal oxidation. HTS 3824.99.39.90 for multi-fluoride inorganic mixtures in non-ferrous casting. Lowers melting point and improves metal fluidity.

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%
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Import Tips

• Include melting point depression specifications; certify fluoride evolution control measures; comply with aluminum smelter emission standards documentation

Cryolite-Sodium Fluosilicate Flux Powder from Japan — Import Duty Rate | HTS 3824.99.39.90