Zinc Phosphide Rodent/Herbicide Granules from China

Zinc phosphide (Zn3P2) granules for gopher control with secondary weed desiccation effect, in retail bait stations. Inorganic substance qualifies under HTS 3808.93.20.00 for herbicide use. Phosphine gas released kills on ingestion.

Duty Rate — China → United States

40%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

Import Tips

Requires APHIS permit and fumigation certificates due to phosphine hazard

Bittering agents mandatory in formulation per EPA child safety rules

Temperature-controlled shipping (<30°C) prevents spontaneous phosphine generation