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8414.90.91.40/Ion Pump Magnet Assembly/Japan

Ion Pump Magnet Assembly from Japan

Permanent magnet arrays for sputter ion pumps in ultra-clean vacuum for semiconductor wafer polishers. Under HTS 8414.90.91.40 as parts of vacuum pumps processing semiconductor wafers to flatness tolerances. Provides ionizing magnetic field without hydrocarbons.

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

• Specify rare-earth magnet grades (e.g

• NdFeB) and field strength

• Magnetic shielding certs prevent hazmat declarations