Thallium-Contaminated Gold Cyanidation Ash
This ash is generated during gold cyanidation leaching and contains thallium impurities, making it suitable for thallium and precious metal recovery. It is classified under tariff item 2620.60.00 as a chemical process residue containing thallium, of a kind used for the extraction of thallium or for the manufacture of its chemical compounds, per Chapter 26 note 3.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the ash is primarily a precious metal ore rather than a residue
Precious metal ores and concentrates are classified in heading 26.16, not as residues.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Document that the ash is intended for thallium or precious metal recovery to meet the 'of a kind used' criterion
• The statistical unit of measure is kilograms of metal content, so declare the thallium and gold content accurately
• Consult the CBSA for any restrictions on importing residues with hazardous properties
Related Products under Tariff item 2620.60.00
Arsenic-Antimony Flotation Tailings
Arsenic-antimony flotation tailings are tailings from antimony ore flotation containing arsenic, used in joint extraction plants for both metals. This material is a residue containing arsenic, of a kind used for the extraction of arsenic or the manufacture of its chemical compounds, fitting tariff item 2620.60.00. It is not from iron or steel manufacture and is destined for industrial metal recovery.
Arsenic-Bearing Copper Smelter Slag
Arsenic-bearing copper smelter slag is a residue from copper smelting that contains significant arsenic content. It is primarily used in the extraction of arsenic through specialized hydrometallurgical methods, making it a material of a kind used for the extraction of arsenic or the manufacture of its chemical compounds. This slag falls under tariff item 2620.60.00 as it contains arsenic and is destined for industrial metal recovery.
Arsenic-Mercury Mixed Smelter Dust
Arsenic-mercury mixed smelter dust is fine dust collected from non-ferrous smelters containing both arsenic and mercury mixtures, destined for selective metal recovery. This dust is a residue containing arsenic and mercury, of a kind used for the extraction of those metals or the manufacture of their chemical compounds, fitting tariff item 2620.60.00. It is not from iron or steel manufacture and is used for industrial extraction.
Arsenic Recovery Catalyst Residue
Arsenic recovery catalyst residue is spent catalyst residue containing arsenic from industrial processes, reclaimed for arsenic compounds. This residue is of a kind used for the extraction of arsenic or the manufacture of its chemical compounds, fitting tariff item 2620.60.00. It is an industrial residue containing arsenic, not from iron or steel manufacture.
Arsenic-Rich Tin Smelter Slag
Arsenic-rich tin smelter slag is a slag byproduct from tin smelting with high arsenic content, processed for arsenic recovery and tin metal reclamation. This slag is a residue containing arsenic, of a kind used for the extraction of arsenic or the manufacture of its chemical compounds, fitting tariff item 2620.60.00. It is not from iron or steel manufacture and is used for industrial extraction.
Arsenic-Rich Zinc Roast Clinker
Arsenic-rich zinc roast clinker is a residue from zinc roasting operations with high arsenic content, destined exclusively for arsenic recovery plants producing arsine gas or compounds. This clinker is used only for the extraction of arsenic or the manufacture of its chemical compounds, meeting the criteria of tariff item 2620.60.00. It is a metallurgical residue containing arsenic, not from iron or steel manufacture.