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2825.90.00/Tungsten Blue Oxide (W20O58)/Mexico

Tungsten Blue Oxide (W20O58) from Mexico

Tungsten blue oxide (W20O58) is a mixed-valence tungsten oxide used as an intermediate in the production of ammonium paratungstate (APT) and tungsten carbide. It is a chemically defined inorganic oxide of tungsten, falling under tariff item 2825.90.00 as 'Other' metal oxides. The product is not excluded by Chapter 28 notes, as it is a separate chemically defined compound of an inorganic base.

Duty Rate — Mexico → Canada

0%
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Import Tips

• Ensure the product is clearly labelled as tungsten blue oxide (W20O58) with a certificate of analysis confirming its chemical composition

• Verify the applicable duty rate for tariff item 2825.90.00 with the CBSA, as rates may vary based on origin (e.g

• Most-Favoured-Nation or free trade agreements)

• Keep records of the import transaction for at least six years for CBSA audit purposes

Tungsten Blue Oxide (W20O58) from Mexico — Import Duty Rate | Tariff item 2825.90.00