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Nanofabrication Sulfonium Chloride Solution from Japan

High-purity aqueous solution of the named sulfonium chlorides for extreme ultraviolet (EUV) lithography in nanofabrication. Classified in HTS 3824.99.2500 due to matching the subheading's specific chemical mixture definition.

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%

Import Tips

Use NRTL-certified lab testing to confirm composition meets exact subheading requirements

Include end-user statements proving semiconductor manufacturing use to avoid broader chemical classifications

Watch for reclassification if concentration falls below 5% aromatic threshold