Magnesium Phosphide Fumigant Herbicide from Mexico
Tablets of magnesium phosphide (Mg3P2) generating phosphine gas for soil fumigation against weed seeds and nematodes. Retail packs for orchard use fit HTS 3808.93.20.00. Inorganic substance provides contact/systemic weed kill.
Duty Rate — Mexico → United States
15%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• UN 2014 hazmat declaration mandatory for phosphide imports
• Moisture indicators required on packaging for safety verification
• PPE requirements must be listed for certified applicator compliance