1 | ECQX | Degussa Engineered Carbons LP | added 4/2003; 7/2005 | | NAKINA |
2 | ECQX | Engineered Carbons, Inc. | added 10/1995; 7/2000; eliminated 4/2003 | | NAKINA |
3 | ECQX | Engineered Carbons, Inc. | added 10/95; 7/2000 | | NRHS |
4 | ECQX | DEGUSSA ENGINEERED CARBONS INC. | | | PWRC |
5 | ECQX | Engineered Carbons | | | RSRV |
6 | ECQX | DEGUSSA ENGINEERED CARBONS LP | | | SCAC4 |