Bis(cyclopentadienyl)zirconium Dichloride from Germany
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 — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
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