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

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2819.90.00.00Higher: 38.7% vs 35%

If chromium oxides for pigments

Coloring applications supersede polymerization function

3815.12.00Same rate: 35%

If chromia on alumina support

Different carrier material changes statistical reporting

3901.10.10.00Higher: 41.5% vs 35%

If pre-polymerized with olefin

Polymer-coated catalysts classified as plastics

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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