BLOMMER CHOCOLATE CO. · CHICAGO, ILActiveOSCAR MAYER FOODS CORP CHICAGO PLANT · CHICAGO, ILActiveSTIFFEL CO · CHICAGO, ILActiveUNITY MANUFACTURING CO · CHICAGO, ILActiveWESLEY-JESSEN CORP · CHICAGO, ILActive
Source: U.S. EPA Toxic Release Inventory. Registration does not by itself indicate a health hazard.