Spent Tungsten Catalyst Residue from Canada
Residue from deactivated petroleum catalysts containing primarily tungsten oxides. HTS 2620.99.20.00 applies to such ash used for tungsten recovery industrially. Excludes incinerated waste.
Duty Rate — Canada → United States
13.8%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Catalyst deactivation certificates verify industrial slag status
• Report full metal assay to avoid undervaluation penalties
• Ensure separation from spent catalysts under 3815