7001.00.10.00/High-Purity Fused Silica Lump/Japan

High-Purity Fused Silica Lump from Japan

Irregular lumps of high-purity fused silica obtained directly from the melting furnace, used in refractory linings or remelting. HTS 7001.00.10.00 applies as glass in the mass specifically of fused quartz/silica, excluding waste or cullet.

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%

Calculate with your customs value Verify classification with AI

Import Tips

• Distinguish from cullet (7001.00.20); provide production records showing direct fusion, not recycling

• Declare OH content levels; low-hydroxyl lumps for specific optics may need additional testing

• Avoid bulk packaging pitfalls; use vermiculite for thermal protection during sea freight