Chromium Oxide Polymer Catalyst
Phillips catalyst (CrO3 on silica) precursor for HDPE production. Wholly inorganic composition under HTS 3815.90.3000.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If chromium oxides for pigments
Coloring applications supersede polymerization function
If chromia on alumina support
Different carrier material changes statistical reporting
If pre-polymerized with olefin
Polymer-coated catalysts classified as plastics
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Cr loading (1-5wt%) and activation procedure documentation essential
• Hexavalent Cr-free declaration prevents REACH restrictions
• Silica support ratio affects whether classified as chromium or silica product
Related Products under HTS 3815.90.30.00
Zinc Stearate Powder
Zinc stearate is a fine white powder used as a lubricant and release agent in plastics and rubber manufacturing. It qualifies under HTS 3815.90.3000 as a catalytic preparation consisting wholly of inorganic substances, specifically zinc compounds that facilitate polymerization reactions.
Aluminum Chlorohydrate Catalyst
Catalytic-grade aluminum chlorohydrate used in polymerization processes for water treatment resins. Classified under 3815.90.3000 as it consists entirely of inorganic aluminum compounds acting as reaction accelerators.
Sodium Perborate Accelerator
Anhydrous sodium perborate used as oxygen bleach catalyst in epoxy resin curing. Falls under HTS 3815.90.3000 as a wholly inorganic reaction accelerator for industrial coatings.
Magnesium Oxide Polymerization Catalyst
High-purity MgO powder serving as catalyst in polypropylene production. Classified in 3815.90.3000 for its wholly inorganic composition and role as reaction initiator.
Titanium Dioxide Accelerator
Nano-grade TiO2 used as photoinitiator in UV-curable coatings. HTS 3815.90.3000 covers this wholly inorganic catalytic preparation for radical polymerization.
Cerium Oxide Polishing Catalyst
Ceria nanoparticles catalyzing chemical mechanical planarization in semiconductor manufacturing. Classified under 3815.90.3000 as inorganic reaction accelerator.