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2508.40.01/Bentonite Clay Lumps/Japan

Bentonite Clay Lumps from Japan

Natural bentonite clay in lump form, valued for its swelling properties in drilling muds, cat litter, and sealants. Falls under HTS 2508.40.01 as 'other clays,' encompassing natural bentonite not expanded or processed into articles.

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 swell index test results and CEC (cation exchange capacity) data to substantiate bentonite classification under other clays

• Ensure shipments are free of synthetic additives; pure natural clays only qualify here—mixtures may go to Chapter 38