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2826.19.10.00/Ammonium Difluoride/Mexico

Ammonium Difluoride from Mexico

Ammonium difluoride (NH4HF2 variant) used in beaker cleaning and synthetic fluoride production. HTS 2826.19.1000 classifies it as ammonium fluoride. Chemically defined simple fluoride salt.

Duty Rate — Mexico → United States

13.1%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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Import Tips

• Distinguish from bifluoride via molar ratio in COA

• Retail lab packs risk 3824 classification