Tetrahydrofuran (THF) from Mexico
Tetrahydrofuran is a saturated heterocyclic compound containing a five-membered furan ring with one oxygen hetero-atom, used as a solvent in chemical reactions and polymer manufacturing. It falls under HTS 2932.19.51.00 as a hydrogenated furan ring compound with oxygen hetero-atom only. This classification covers unfused furan ring structures per Chapter 29 notes.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Provide Certificate of Analysis confirming purity >99% and absence of impurities to verify chemical identity under Chapter 29 note (a)
• Ensure proper UN 2924 hazardous material labeling and shipping papers for flammable liquid Class 3
• Avoid misclassification as mixtures; pure THF qualifies, but solvent blends may shift to Chapter 38