Impregnated Activated Carbon with Potassium Iodide from Canada
Granular activated carbon impregnated with potassium iodide for H2S removal in biogas treatment. HTS 3802.10.0050 as base activated carbon; impregnation enhances chemisorption. Widely used in wastewater digesters.
Duty Rate — Canada → United States
14.8%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Declare impregnant composition <10% to maintain 3802 classification
• Provide performance data showing carbon as principal adsorbent
• EPA registration may be needed for odor control claims