Triammonium Phosphate Lab Grade from Mexico
High-purity triammonium phosphate for laboratory reagents and analytical chemistry, meeting ACS specifications. Classified under HTS 2835.29.20.00 as a chemically defined phosphate of triammonium per Chapter 28 notes. Excludes organic derivatives or fertilizer blends.
Duty Rate — Mexico → United States
11.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include lab-grade certification and purity assay (>99%) in import docs to justify chemical classification over fertilizer headings
• Package in sealed, moisture-proof containers; hygroscopic nature can cause clumping and quality disputes at entry
• Avoid bulk packaging over 25kg which may trigger additional hazmat fees – check IMDG for phosphate salts