Ammonium Pentaborate Solution from Mexico
Ammonium pentaborate solution (20-40% concentration) serves as a fire retardant and boron supplement in agriculture. Under HTS 2840.20.00.00 as other borates, it qualifies as chemically defined per Chapter 28/29 notes despite solution form. Used in wood treatment and fertilizers.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Declare exact concentration; solutions over 50% may face different chemical regs
• Obtain TSCA certification for US chemical import notification
• Use DOT-approved containers for liquid hazardous shipments