| Business | Phone |
| Icec Canada 510 5 St Sw #520, Calgary T2P 3S2 | (403) 264-8954 |
| Intcan Economic Dev & Finance 1301 8 St Sw #105, Calgary T2R 1B7 | (403) 244-5166 |
| Petrosul International 505 3 St Sw #860, Calgary T2P 3E6 | (403) 262-8774 |
| Prism Sulphur Corp 300 5 Ave Sw #3060, Calgary T2P 3C4 | (403) 262-8766 |
| Sulphur Corporation Of Canada 300 5 Ave Sw #620, Calgary T2P 3C4 | (403) 234-7700 |
| Sultran Limited 205 5 Ave Sw #2840, Calgary T2P 2V7 | (403) 265-1486 |
| Supersul Canada Ltd 520 5 Ave Sw #2100, Calgary T2P 3R7 | (403) 531-1455 |
| Transammonia Canada Ltd 5720 4 St Se #200, Calgary T2H 1K7 | (403) 297-0414 |
| Western Sulfur Remelters Ltd 4510 80 Ave Se, Calgary T2C 4H9 | (403) 279-2440 |
| Enersul Limited Partnership 7210 Blackfoot Trail Se, Calgary T2H 1M5 | (403) 253-5969 |