Methadone Phosphate from Mexico
Methadone phosphate provides a buffered salt form for oral solutions in opioid maintenance programs. Under HTS 2922.31.00.00, classified with the methadone base per salt rules in chapter notes, as an oxygen-function amino-ketone. Pure form without multi-oxygen functions.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Ensure pH stability certification; comply with narcotic manifest filing; avoid delays from missing end-user statements