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2528.00.00.05/Calcined Tincal Borate Concentrate/Japan

Calcined Tincal Borate Concentrate from Japan

Heat-treated tincal (natural borax) concentrate for soldering fluxes and heat-resistant alloys. HTS 2528.00.0005 includes calcined forms of natural sodium borates from solid mineral deposits. Provides essential boron for metallurgical processes.

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

• Certify calcination to remove volatiles; comply with REACH for boron compounds

• Avoid container condensation with desiccants