Antifoam Additive Based on Polyglycol Methylphosphonate from China
> An industrial antifoam agent composed of polyglycol esters of methylphosphonic acid, used to control foam in chemical manufacturing and wastewater treatment processes. It falls under tariff item 3824.92.00 because it is a chemical preparation based on the specific ester named in the item, and it is not elsewhere specified or included.
Duty Rate — China → Canada
0%
Import Tips
• > Ensure the product's composition is clearly documented as polyglycol esters of methylphosphonic acid on the commercial invoice to support classification
• If the antifoam is diluted with water or other carriers, verify whether it still meets the description of the tariff item
• Keep a safety data sheet (SDS) available for CBSA inspection, as chemical products may require additional documentation