Sodium Silicofluoride Powder from China
Sodium silicofluoride (Na2SiF6) is a white crystalline powder used primarily as a fluoridating agent in water treatment to prevent tooth decay. It falls under HTS 2826.90.1000 as it is a chemically defined fluorosilicate of sodium, specifically classified among complex fluorine salts in Chapter 28. This inorganic compound meets the criteria for subheading 2852.10 but is explicitly placed here.
Duty Rate — China → United States
41.6%
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
• Verify purity and chemical composition via lab analysis for accurate HTS classification; obtain EPA approvals for water treatment uses; ensure packaging prevents moisture absorption during transit