Triammonium Phosphate Anhydrous Powder from China
Anhydrous (NH4)3PO4 fine powder for pharmaceutical buffering and nutrient media preparation. HTS 2835.29.20.00 applies to this chemically defined triammonium phosphate salt. Excludes hydrated forms if separately specified, but generally covered.
Duty Rate — China → United States
36.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Provide GMP certification for pharma-grade imports; FDA registration may be required alongside CBP entry
• Hygroscopic – use anti-caking declarations to prevent weight disputes from moisture absorption
• Ensure no heavy metal contaminants per USP standards to avoid toxic substance scrutiny