Ferbam Technical Grade from Canada
Ferbam, or iron bis(dimethylthiocarbamoyl)disulfide, is a dithiocarbamate fungicide active ingredient used in crop protection. Classified under HTS 2930.20.90.50 as an 'other' thiocarbamate/dithiocarbamate organo-sulfur compound meeting Chapter 29's chemically defined criteria. Technical grade excludes formulated end-use products.
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 structural formula verification; customs may test for sulfur-carbon linkage per Chapter 29 organo-sulfur definition
• Declare CAS number (14484-64-1) accurately to prevent confusion with iron salts
• Avoid packaging over 25kg drums if claiming pure compound status to dodge bulk chemical prep classification