Kieselguhr Catalyst Support Brick from Germany
Ceramic brick from kieselguhr used as inert support for chemical catalysts in reactors. Falls under HTS 6901.00.00.00 for ceramic goods of siliceous fossil meals.
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
• Provide chemical inertness certificates for catalyst bed applications
• Declare industrial end-use to avoid consumer article shifts
• Test for >95% silica content from fossil sources