Ammonium Terephthalate from United States
Ammonium terephthalate is the ammonium salt of terephthalic acid, an aromatic polycarboxylic acid. It is used as a blowing agent in plastics and as a chemical intermediate. Under Chapter 29, inorganic salts of organic acids are classified with the parent organic compound, which is terephthalic acid.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the product is clearly identified as ammonium terephthalate on commercial invoices
• Verify that it is not mixed with other compounds that could change its classification
• Consult the CBSA's tariff classification advice service for binding rulings if uncertain