tert-Butyl Peroxybenzoate from China
An aromatic ether peroxide used as a curing agent in polyester resins and rubber vulcanization. Classified under HTS 2909.60.20.00 due to its aromatic structure with ether-peroxide functionality. Meets Chapter 29 requirements for chemically defined organic peroxide derivatives.
Duty Rate — China → United States
43%
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
• Classify based on predominant aromatic peroxide structure; provide NMR/GC certificates confirming chemical identity
• Use temperature-controlled shipping containers as peroxides decompose above 30°C; declare self-accelerating decomposition temperature (SADT)
• Check for anti-dusting agents; additions per Chapter 29 note (g) allowed only if not rendering product for specific use