Computer and Scientific

Owner

IMASCO ENTERPRISES, INC.

Aug 3, 1999

Chemicals

Owner

IMASCO ENTERPRISES INC.

May 19, 1992

Nonmetallic Building Materials

Owner

IMASCO ENTERPRISES INC.

Jul 27, 1993

Chemicals and 3 others

Owner

IMASCO ENTERPRISES, INC.

May 29, 1984