Microelectronics Sodium Sulfate from United States
Ultra-high purity sodium sulfate (Na2SO4) for wafer cleaning solutions in semiconductor fabs. This chemically defined inorganic compound is not doped for electronics use, so it remains in Chapter 28. It falls under tariff item 2833.11.00 as disodium sulphate.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm the product is not doped; doped forms for electronics are excluded from Chapter 28
• Provide purity certificates and impurity profiles
• Consider whether the semiconductor application requires any special customs documentation