8454.90.00/Silicon Ingot Mold Grinding Fixture/Japan

Silicon Ingot Mold Grinding Fixture from Japan

Fixture part for holding ingot molds during precision grinding in semiconductor metallurgy preparation. Ensures diameter accuracy for crystal boules used in wafer slicing. As a part of casting machine tooling, it's under 8454.90.00.

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

• Include photos/drawings of fixture-mold interface to prove specificity to 8454 equipment

• Declare tolerance specs (e.g

• ±0.1mm) to support foundry precision claim

• Avoid 'general tooling' description to prevent 8466 classification