Zinc Dibutyldithiocarbamate (ZDBC) from China
ZDBC serves as an ultra-accelerator in rubber compounding, particularly effective in low-sulfur systems for tire manufacturing. Classified under HTS 2930.20.90.20 as a dithiocarbamate principally used in rubber processing per Chapter 29 heading 2930.20 structure. It offers non-blooming properties ideal for high-quality rubber products.
Duty Rate — China → United States
28.7%
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)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Submit manufacturer specifications showing rubber vulcanization as principal application to distinguish from agricultural fungicide uses
• Ensure COA (Certificate of Analysis) confirms chemical purity meeting Chapter 29 separate compound requirements
• Avoid bulk packaging that could suggest pesticide formulation, maintaining classification as pure organo-sulfur compound