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Boron Sesquioxide Fused Lump from Mexico

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 — Mexico → United States

11.5%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Declare fusion temperature history to prove oxide integrity

Boron Sesquioxide Fused Lump from Mexico — Import Duty Rate | HTS 2810.00.00.00