Anhydrous Soda Ash (Disodium Carbonate) from Mexico
Anhydrous soda ash is a pure form of disodium carbonate (Na2CO3) used primarily in the glass manufacturing industry as a flux to lower melting temperatures. It falls under HTS 2836.20.00.00 as it is explicitly classified as disodium carbonate, a key inorganic compound in Chapter 28 for carbonates of inorganic bases.
Duty Rate — Mexico → United States
11.2%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify purity levels exceed 99% to confirm classification as disodium carbonate; provide chemical analysis certificates to avoid misclassification as sodium bicarbonate
• Ensure bulk packaging complies with DOT hazardous material regs if hydrated