| 1 | CGBX | Dow Chemical Canada, Inc. | added 4/1997; 7/2000-7/2005 | | NAKINA |
| 2 | CGBX | Procor Ltd. | added 7/1982; 1/1994 | | NAKINA |
| 3 | CGBX | CGTX, Inc. | added 1/1981; eliminated 7/1982 | | NAKINA |
| 4 | CGBX | Canadian General Transit Co., Ltd. | added 4/1957; 10/1957-1/1980; eliminated 1/1981 | | NAKINA |
| 5 | CGBX | Canadian General Transit Co., Ltd. | added 4/57; 10/57-1/80; eliminated 1/81 | | NRHS |
| 6 | CGBX | CGTX, Inc. | added 1/81; eliminated 7/82 | | NRHS |
| 7 | CGBX | Procor Ltd. | added 7/82; 1/94 | | NRHS |
| 8 | CGBX | Dow Chemical Canada, Inc. | added 4/97; 7/2000 | | NRHS |
| 9 | CGBX | *CGTX, INC. [CANADIAN GENERAL TRANSIT CO., LTD.] | | | PWRC |
| 10 | CGBX | *CONSOLIDATED GRAIN & BARGE CO. | | | PWRC |
| 11 | CGBX | +DOW CHEMICAL CANADA [(PROX) PROCOR LIMITED] | | | PWRC |
| 12 | CGBX | Consolidated Grain & Barge (Dow Chemical Canada) | | | RSRV |
