Diammonium Potassium Persulfate from China
Diammonium potassium persulfate is a double salt combining potassium persulfate with ammonium, used in etching and polymerization. However, Chapter 28 Note 5 directs double or complex salts to heading 28.42, so this product may not fall under tariff item 2833.40.00.
Duty Rate — China → Canada
0%
Import Tips
• Determine if the product is a double salt, as this affects classification
• If a double salt, use tariff item 2842.90.00 instead of 2833.40.00
• Consult a customs broker for accurate classification