> EAST TENNESSEE MATERIALS AND ENERGY CORPORATION Tennessee Since: 1997 EAST TENNESSEE MATERIALS AND ENERGY CORPORATION
> NAVARRO RESEARCH AND ENGINEERING, INC. Tennessee Since: 1993 NAVARRO RESEARCH AND ENGINEERING, INC.
> MATERIALS FABRICATION AND TESTING SERVICES, INC. Tennessee Since: 1999 MATERIALS FABRICATION AND TESTING SERVICES, INC.
> MATERIALS ENGINEERING AND TESTING CORPORATION Tennessee Since: 1978 MATERIALS ENGINEERING AND TESTING CORPORATION
> MATERIALS AND CHEMISTRY LABORATORY, INC. Tennessee Since: 1998 MATERIALS AND CHEMISTRY LABORATORY, INC.
