FAIRMOUNT MINERALS WEDRON SILICA WEDRON, IL 60557 MR. JOHN EDNEY P.E. PLANT MANAGER                                        815-433-2449   THE BELT RAILWAY OF CHICAGO 6900 S. CENTRAL AVE. BEDFORD PARK, IL MR. JEFFREY GINGRICH MAINTENANCE ENGINEER 708-372-8953   U.S. SILICA 701 BOYCE MEMORIAL DR OTTAWA, IL 61350 MR. BRUCE BOSMENY PLANT ENGINEER 815-434-0188   JOHN J. PEMPEK, INC.                                                                                      11745 SOUTHWEST HIGHWAY                                                                          PALOS HEIGHTS, IL 60463 MR. JOHN PEMPEK PRESIDENT 708-361-1265   MAPEI 530 INDUSTRIAL DRIVE WEST CHICAGO, IL 60185 MR. AL GUAZZELLI PLANT ENGINEER 630-293-5800   NORTHWEST BANK OF ROCKFORD 3106 NORTH ROCKTON ROAD ROCKFORD, IL 61103 MS. MARION FREDRICKSON 815-987-4550