Tetraethylthiuram Disulfide (TETD) from Canada
Tetraethylthiuram disulfide (TETD) is a thiuram tetrasulfide derivative used as a vulcanization accelerator in the tire and rubber industries. Classified under HTS 2930.30.60.00 as 'other' thiuram mono-, di-, or tetrasulfides, it qualifies as an organo-sulfur compound with sulfur directly bonded to carbon. It is typically imported as a technical-grade powder meeting chemical purity standards.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide analytical data showing sulfur-carbon bonding to confirm organo-sulfur status; check for TSCA registration as it's used in US manufacturing; label clearly to distinguish from pesticide formulations