| 1 | KGCX | INDSPEC Chemical Corp. | added 10/1989; 1/1994; eliminated 1/1998; 7/2000-7/2005 | | NAKINA |
| 2 | KGCX | Koppers Co., Inc. | added 4/1955; 10/1957-1/1980; eliminated 10/1989 | | NAKINA |
| 3 | KGCX | Koppers Co., Inc. | added 4/55; 10/57-1/80; eliminated 10/89 | | NRHS |
| 4 | KGCX | INDSPEC Chemical Corp. | added 10/89; 1/94; eliminated 1/98; 7/2000 | | NRHS |
| 5 | KGCX | INDSPEC CHEMICAL CORPORATION [KOPPERS CO.] | | | PWRC |
| 6 | KGCX | Koppers (INDSPEC Chemical Corporation) | | | RSRV |
| 7 | KGCX | INDSPEC CHEMICAL CORPORATION | | | SCAC4 |
