Fumaric Acid for Paper Sizing from Mexico
Fumaric acid used in alkyl ketene dimer production for paper sizing agents. Pure form qualifies under HTS 2917.19.1700 as other acyclic polycarboxylic acid per Chapter 29 chemical compound provisions.
Duty Rate — Mexico → United States
14.2%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Specify paper industry end-use in commercial invoice
• Monitor TSCA inventory status for US chemical import
• Ensure moisture content <0.5% for sizing grade specs