8481.90.90.40/Wafer Lapping Machine Slurry Valve/Japan

Wafer Lapping Machine Slurry Valve from Japan

Specialized valve for metering abrasive slurry in wafer lappers and polishers that achieve flatness tolerances for semiconductor fabrication. It qualifies under HTS 8481.90.9040 as a part of 8481.20 valves in wafer preparation equipment.

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

• Provide slurry compatibility test data to prove semiconductor-specific design

• Label with exact tolerances (e.g

• <1 micron flow control) for customs review

• Watch for undervaluation pitfalls when importing high-tech prototypes