Oxetane Monomer from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Ring strain data distinguishes from larger ring ethers
• Monomer purity >99%; polymer content disqualifies
• Photopolymer applications require end-use verification