Aromatic Guar Gum Derivative for Paper from Mexico
Hydroxypropyl guar modified with aromatic quaternary groups (>5%) used as dry strength additive and drainage aid in fine paper production. HTS 3809.92.10.00 for paper finishing with aromatic threshold met.
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
• Degree of substitution (DS) values document aromatic modification level
• Paper machine trial data proves finishing agent functionality
• Avoid food additive classification by specifying industrial paper use