2810.00.00.00/Boron Sesquioxide Fused Lump/Mexico

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

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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Import Tips

• Declare fusion temperature history to prove oxide integrity