APPROVED SOURCES

CUTBACK & EMULSIFIED ASPHALT

The following sources are approved to furnish Cutback Asphalt based on certification:

SUPPLIER ADDRESS

Bituminous Materials & Supply Company                                                      Des Moines, IA

Bituminous Materials & Supply Company                                                      Tama, IA

Coastal Refining & Marketing, Inc.                                                                 Eldorado, KS

Illinois Road Contractors Inc.                                                                          Meredosia, IL

Jebro, Inc.                                                                                                       Sioux City, IA

Jebro, Inc.                                                                                                       Sioux Falls, SD

Flint Hills Resources                                                                                       Algona, IA

Flint Hills Resources                                                                                       Dubuque, IA

Flint Hills Resources                                                                                       Marshall, MN

Flint Hills Resources                                                                                       Omaha, NE

Flint Hills Resources                                                                                       St. Paul, MN

L.L. Pelling Company, Inc.                                                                             Coralville, IA

Midwest Industrial Fuel Company                                                                  La Crosse, WI

The following sources are approved to furnish Emulsified Asphalt based on certification:

Asphalt Systems Inc.                                                                                      Salt Lake City, UT

Bituminous Materials & Supply Company                                                      Des Moines, IA

Bituminous Materials & Supply Company                                                      Tama, IA

H.G. Meigs                                                                                                      Portage, WI

Illinois Road Contractors Inc.                                                                          Meredosia, IL

Jebro, Inc.                                                                                                       Sioux City, IA

Flint Hills Resources                                                                                       Algona, IA

Flint Hills Resources                                                                                       Dubuque, IA

Flint Hills Resources                                                                                       Marshall, MN

Flint Hills Resources                                                                                       Omaha, NE

Flint Hills Resources                                                                                       St. Paul, MN

Monarch Terminal                                                                                          Omaha, NE

Tri-State Asphalt                                                                                             Morris, IL

Vance Brothers, Inc.                                                                                       Kansas City, MO