Technical Grade P4S3 Flakes from United States
Technical grade phosphorus sesquisulfide (P4S3) in flake form serves as a key intermediate in pesticide and lubricant additive production. It is classified under tariff item 2813.90.00 as an 'other' sulfide of a non-metal, specifically commercial phosphorus trisulfide.
Duty Rate — United States → Canada
0%
Import Tips
• Verify the flake form is consistent with commercial phosphorus trisulfide, as other forms may be classified elsewhere
• Ensure the product is not mixed with other substances that could change its classification
• Check if the product is subject to pesticide or chemical regulations, which may require additional permits