WISCONSIN PUBLIC SERVICE CORPORATION SENIOR NOTES, 5.55% SERIES DUE DECEMBER 1, 2036 UNDERWRITING AGREEMENTWisconsin Public Service Corp • November 30th, 2006 • Electric & other services combined • New York
Wisconsin Public Service Corporation, a corporation organized under the laws of Wisconsin (the “Company”), proposes to sell to the several underwriters named in Schedule II hereto (the “Underwriters”), for whom you (the “Representatives”) are acting as representatives, the principal amount of its senior debt securities identified in Schedule I hereto (the “Senior Notes”), to be issued under an Indenture dated as of December 1, 1998, between the Company and U.S. Bank National Association (as successor to Firstar Bank Milwaukee, N.A.), as trustee (the “Senior Trustee”), as amended and supplemented to the date hereof (the “Original Senior Indenture”) and to be further supplemented by the Fifth Supplemental Indenture dated as of December 1, 2006, creating the series in which the Senior Notes are to be issued (the “Supplemental Indenture to the Senior Indenture”). The term “Senior Indenture,” as used herein, means the Original Senior Indenture as supplemented by the Supplemental Indenture t
