Thallium Gallium Arsenide Etch Residue from China
This etch residue comes from semiconductor GaAs wafer processing and contains thallium dopants, recovered for metal recovery. It falls under tariff item 2620.60.00 as an industrial residue containing thallium, of a kind used for the extraction of thallium or for the manufacture of its chemical compounds, consistent with Chapter 26 note 3.
Duty Rate — China → Canada
0%
Import Tips
• Verify the residue is not a waste of precious metal (excluded by Chapter 26 note 1(f)); if it contains gold or silver, heading 71.12 may apply
• Provide a detailed composition breakdown to the CBSA to support classification
• Ensure the recovery process is documented for customs verification