Bis(cyclopentadienyl)zirconium Dichloride from China
Zirconocene dichloride (Cp2ZrCl2) is a metallocene polymerization catalyst with Zr-C bonds, classified 2931.90.90 as other organo-inorganic compounds. Chapter note III(A) confirms classification with organic component in latest numerical heading.
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
• Air/moisture-sensitive; requires Schlenk flask packaging with desiccant documentation
• Commonly misclassified as 2827 zirconium chlorides—insist on metallocene organometallic status
• Olefin catalyst end-use letter supports correct 2931 classification