Dimethyl Phosphite in Aqueous Solution 50% from Mexico
50% dimethyl phosphite in water, prepared for safe transport, remains under HTS 2920.21.00.00 per chapter note (d) for products of note (a) dissolved in water. Used in corrosion inhibitors.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Confirm solution strength doesn't exceed 'normal' per note (d); pH-neutralize if needed; label as UN 3265 corrosive liquid