| 1 | SCLX | Standard Chemical Co., Ltd. | 7/1930-1/1950 | | NAKINA |
| 2 | SCLX | Standard Chemical, Ltd. | added 7/1955; 10/1957-1/1975; eliminated 10/1975 | | NAKINA |
| 3 | SCLX | Stanchem Division, PPG Industries Canada Ltd. | added 10/1975; 1/1980; eliminated 7/1984 | | NAKINA |
| 4 | SCLX | PPG Canada, Inc. | added 7/1984; eliminated 10/1984 | | NAKINA |
| 5 | SCLX | PPG Canada, Inc., Industrial Chemicals | added 10/1984; 1/1994; eliminated 1/1997 | | NAKINA |
| 6 | SCLX | CanadianOxy Industrial Chemicals Limited Partnership | added 1/1997; 7/2000; eliminated 4/2002 | | NAKINA |
| 7 | SCLX | Nexen Chemical Canada Limited Partnership | added 4/2002; 7/2005; eliminated 1/2010 | | NAKINA |
| 8 | SCLX | Canexus Chemicals Canada Limited Partnership | added 1/2010 | | NAKINA |
| 9 | SCLX | Samuet Cabot, Inc. | Apr-38 | | NRHS |
| 10 | SCLX | Standard Chemical Co., Ltd. | Apr-38 | | NRHS |
| 11 | SCLX | Standard Chemical, Ltd. | added 7/55; 10/57-1/75 | | NRHS |
| 12 | SCLX | Stanchem Division, PPG Industries Canada Ltd. | 1/80; eliminated 7/84 | | NRHS |
| 13 | SCLX | PPG Canada, Inc. | added 7/84; eliminated 10/84 | | NRHS |
| 14 | SCLX | PPG Canada, Inc., Industrial Chemicals | added 10/84; 1/94; eliminated 1/97 | | NRHS |
| 15 | SCLX | CanadianOxy Industrial Chemicals Limited Partnership | added 1/97; 7/2000 | | NRHS |
| 16 | SCLX | NEXEN CHEMICAL CANADA LP [CANADIANOXY INDUSTRIAL CHEMICALS LP; PPG INDUSTRIES CANADA, LTD., STANCHEM DIV.; STANDARD CHEMICAL, LTD.] | | | PWRC |
| 17 | SCLX | PPG Industries Canada Stanchem Division | | | RSRV |
| 18 | SCLX | CANEXUS CHEMICALS CANADA LIMITED PA | | | SCAC4 |
