2810.00.00.00/Boron Sesquioxide Fused Lump/Japan

Boron Sesquioxide Fused Lump from Japan

Fused boric oxide lumps from thermal dehydration, used in specialty glass melting. Pure B2O3 classified under HTS 2810.00.00.00 as boron oxide. Irregular shapes from fusion process.

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

• Declare fusion temperature history to prove oxide integrity