Metaboric Acid Powder from Germany
Metaboric acid (HBO2), a dehydrated form of boric acid, used in flame retardants and catalysts. Included under HTS 2810.00.00.00 as a boric acid isomer, chemically defined. Less stable than orthoboric acid, requiring dry storage.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Specify polymorphic form (alpha/beta/gamma) in documentation
• Monitor for reconversion to orthoboric acid during storage