Sulfite Chemical Woodpulp, Dissolving Grades from Canada
Sulfite process chemical woodpulp with ≥88% insoluble fraction and ash ≤0.15%, used in high-purity applications like cellulose derivatives. HTS 4702.00.00 covers this due to strict chapter note criteria for dissolving grades. Commonly sourced from beech or spruce for acetate film production.
Duty Rate — Canada → United States
60%
Rate breakdown
9903.03.1450%Articles the product of Canada as provided in subdivision (b)(3) of U.S. note 51 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
• Mandatory ash content certification ≤0.15% for sulfite pulp; test both solubility and ash to meet dual criteria
• Declare production process explicitly on commercial invoice to distinguish from soda/sulfate variants