Oxetane Monomer from China
Oxetane is a four-membered heterocyclic ring with one oxygen hetero-atom, used in polymer synthesis. Distinct from three-membered epoxides excluded by notes. HTS 2932.99.90 classification.
Duty Rate — China → United States
16.2%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Ring strain data distinguishes from larger ring ethers
• Monomer purity >99%; polymer content disqualifies
• Photopolymer applications require end-use verification