Tetramethylammonium Hydroxide (TMAH) 25% Solution from Mexico
Tetramethylammonium hydroxide (TMAH) 25% solution is a quaternary ammonium hydroxide used in semiconductor manufacturing. The aqueous solution is covered by Chapter 29 note 1(d).
Duty Rate — Mexico → Canada
0%
Import Tips
• Confirm the concentration is exactly as declared and the solution is aqueous
• Provide the chemical purity and safety data sheet to CBSA