Butylene Oxide with Stabilizer from China
Stabilized butylene oxide contains added preservatives necessary for transport while maintaining its identity as a chemically defined three-membered ring epoxide under HTS 2910.90.10.00 per chapter note (f). Used in polymer initiator production.
Duty Rate — China → United States
42.1%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Document stabilizer as 'necessary for preservation/transport' per note (f) with <1% concentration to maintain pure compound status
• Conduct stability testing if challenged by customs on whether additions render it suitable for specific use
• Use stainless steel drums compatible with epoxide reactivity to prevent polymerization during transit