Ammonium Fluoborate from China
Ammonium fluoborate (NH4BF4) is utilized in electroplating baths, explosives, and synthetic resins. Falls under HTS 2826.19.1000 as an ammonium fluoride complex. Chemically defined per Chapter 28/29 notes, distinct from organo-inorganics.
Duty Rate — China → United States
40.6%
Rate breakdown
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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Certify boron content <5% to avoid overlap with borates in 2840; focus on fluorine classification
• Hazard class 6.1 (toxic); include toxicology data and UN 1812 shipping papers