Calcined Soda Ash for Glass Production from Japan
Calcined soda ash is thermally processed disodium carbonate optimized for flat glass and container glass fluxing. It is imported under HTS 2836.20.00.00 as chemically defined Na2CO3, excluding organic-stabilized variants.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify calcination temp (e.g
• >400°C) in docs for purity verification; use anti-caking agents sparingly to stay chemically defined
• Coordinate with CBP for bulk vessel manifests