Technical Grade Dibutyltin Oxide from China
Technical grade dibutyltin oxide (95-98% purity) for industrial silicone curing applications. HTS 2931.90.90.21 classification applies to this organo-inorganic tin compound despite minor impurities, as it remains a separate chemically defined compound under Chapter 29 note (a).
Duty Rate — China → United States
28.7%
Rate breakdown
9903.88.0425%Except as provided in headings 9903.88.33, 9903.88.34, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(g) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(g)
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
• Document impurity profile; levels must not render it a mixture under Chapter 29 exclusion notes
• Obtain end-user statements if transshipping to confirm non-consumer direct use (TSCA requirements)
• Use anti-caking stabilized packaging only if necessary for transport per Chapter 29 note (f)