Common Contracts

BOND DELIVERY AGREEMENT BETWEEN NORTHWESTERN CORPORATION AND As TRUSTEE Dated as of June 1, 2023 City of Forsyth, Rosebud County, Montana, Pollution Control Revenue Refunding Bonds (Northwestern Corporation Colstrip Project) Series 2023

Bond Delivery Agreement • July 6th, 2023 • Northwestern Corp • Electric & other services combined • Montana

• Contract Type
  Bond Delivery Agreement
• Filed
  July 6th, 2023
• Company
  Northwestern Corp
• Industry
  Electric & other services combined
• Jurisdiction
  Montana

THIS AGREEMENT, made and entered into as of June 29, 2023 (the “Agreement”), by and between NorthWestern Corporation, a corporation organized and existing under the laws of the State of Delaware (the “Company”), and U.S. Bank Trust Company, National Association, a national banking association, as trustee (the “Trustee”) under the Indenture of Trust, dated as of June 1, 2023 (the “Indenture”), from the City of Forsyth, Rosebud County, Montana, a municipal corporation and political subdivision organized and existing under the constitution and laws of the State of Montana (the “Issuer”), to the Trustee, under which the Issuer’s Pollution Control Revenue Refunding Bonds (Northwestern Corporation Colstrip Project) Series 2023 (the “Bonds”) are authorized for issuance;

BOND DELIVERY AGREEMENT BETWEEN NORTHWESTERN CORPORATION AND As TRUSTEE Dated as of August 1, 2016 City of Forsyth, Rosebud County, Montana, Pollution Control Revenue Refunding Bonds (Northwestern Corporation Colstrip Project) Series 2016

Bond Delivery Agreement • August 16th, 2016 • Northwestern Corp • Electric & other services combined • Montana

• Contract Type
  Bond Delivery Agreement
• Filed
  August 16th, 2016
• Company
  Northwestern Corp
• Industry
  Electric & other services combined
• Jurisdiction
  Montana

THIS AGREEMENT, made and entered into as of August 1, 2016 (the “Agreement”), by and between NorthWestern Corporation, a corporation organized and existing under the laws of the State of Delaware (the “Company”), and U.S. Bank National Association, a national banking association, as trustee (the “Trustee”) under the Indenture of Trust, dated as of August 1, 2016 (the “Indenture”), from the City of Forsyth, Rosebud County, Montana, a municipal corporation and political subdivision organized and existing under the constitution and laws of the State of Montana (the “Issuer”), to the Trustee, under which the Issuer’s Pollution Control Revenue Refunding Bonds (Northwestern Corporation Colstrip Project) Series 2016 (the “Bonds”) are authorized for issuance;