Ammonium Tetrachloroplatinate from Mexico
Ammonium tetrachloroplatinate ((NH4)2[PtCl4]) is a coordination compound used in platinum recovery and catalysis, under 2827.39.90 as other chlorides. Qualifies as ammonium salt per heading notes.
Duty Rate — Mexico → United States
3.7%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Precious metal content declaration for potential drawback
• Complex salt; provide structural formula confirmation
• Not pure platinum (Section 71 exclusion)