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Phthalic Anhydride with 0.02% Inhibitor from Mexico

Phthalic anhydride stabilized with minimal hydroquinone inhibitor (0.02%) to prevent premature polymerization during storage/transport, allowable under Chapter 29 note (f). Specifically classified HTS 2917.35.00.00 as the primary product remains the pure anhydride.

Duty Rate — Mexico → United States

16.5%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Specify inhibitor type/concentration in commercial invoice and SDS to validate note (f) stabilizer exception

Maintain stabilizer levels via sealed packaging - degradation changes product identity

Avoid excess stabilizer declarations which trigger 3824 chemical mixture classification

Phthalic Anhydride with 0.02% Inhibitor from Mexico — Import Duty Rate | HTS 2917.35.00.00