| Business | Phone |
| Trace Science Intl 40 Vogell Rd #42, Richmond Hill L4B 3N6 | (905) 770-1100 |
| Silchem Inc 200 Granton Dr, Richmond Hill L4B 1H7 | (905) 709-5867 |
| Clean Chem 22 Coldstream Cres, Richmond Hill L4S 1E6 | (905) 416-0026 |
| G P Chemicals Specialty Ltd 55 West Beaver Creek Rd #10, Richmond Hill L4B 1K5 | (416) 229-9717 |