Gypsum-Based Concrete Retarder from China
> A powdered inorganic blend primarily of calcined gypsum and phosphates used to extend working time of concrete in hot weather conditions. This product is a prepared additive for cements, mortars, or concretes, classified under tariff item 3824.40.00.
Duty Rate — China → Canada
0%
Import Tips
• > Ensure the product is labeled as a concrete retarder and provide a certificate of analysis to the CBSA
• Verify the inorganic composition is accurately declared
• Check if any Canadian regulations apply to gypsum-based products