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Unsaturated Polyester Resin (Non-specific) Flakes from Mexico

UPR flakes for composites beyond standard aromatic types, with maleic anhydride and diols. 3907.99.50 as other polyesters not fitting 3907.99.10 criteria.

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

Distinguish from 3907.99.10 via acid type certificate; styrene-free declaration if applicable; acid value testing required