1 | SBPX | Koppers Co. | 7/1937-1/1941 | | NAKINA |
2 | SBPX | Spiffman, LLC | 7/2005 | | NAKINA |
3 | SBPX | Koppers Coal Co. (The Koppers Co.) | 7/1932-7/1935 | | NAKINA |
4 | SBPX | Seaboard By-Product Coke Co. (The Koppers Co.) | 7/1930 | | NAKINA |
5 | SBPX | Koppers Co. | Apr-38 | | NRHS |
6 | SBPX | *KOPPERS CO. [SEABOARD BY-PRODUCT COKE CO.] | | | PWRC |
7 | SBPX | +SPIFFMAN, LLC | | | PWRC |
8 | SBPX | Spiffman | | | RSRV |
9 | SBPX | SPIFFMAN LLC | | | SCAC4 |