HFC-143a Electronic Grade Gas from China
Ultra-high purity 1,1,1-trifluoroethane (HFC-143a) for semiconductor cleaning is a separate chemically defined compound under Chapter 29 Note 1(a). It is specifically named in tariff item 2903.44.00, and its high purity does not affect classification.
Duty Rate — China → Canada
0%
Import Tips
• Provide a certificate of analysis showing purity (e.g
• 99.999%) to support classification
• Ensure the product is not put up for retail sale, which could trigger other headings
• Check if the product is subject to export controls or permits