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Butyl Rubber Latex Dispersion from China

A liquid dispersion of butyl rubber (IIR) in water, used for dipping and coating applications in manufacturing gloves and balloons. Classified under HTS 4002.39.00.00 as synthetic rubber in primary form (latex), meeting Chapter 40 note definitions for prevulcanized latex without prohibited compounding agents.

Duty Rate — China → United States

37.5%

Rate breakdown

9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China

Import Tips

Verify no vulcanizing agents or fillers added beyond permitted emulsifiers to retain primary form status per Chapter Note 5

Provide chemical composition certificates confirming IIR content and dispersion form for CBP review

Avoid common pitfall of classifying prevulcanized latex as compounded if it exceeds note allowances