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EX-21 6 a2023ex21.htm KNIFE RIVER CORPORATION LIST OF SUBSIDIARIES Knife River Corp - List of Subsidiaries of Knife River Corporation.

Knife River Corporation
List of Subsidiaries
(effective December 31, 2023)


Subsidiaries
Jurisdiction of Formation
Alaska Basic Industries, Inc.Alaska
Ames Sand & Gravel, Inc.North Dakota
Anchorage Sand and Gravel Company, Inc.Alaska
ARC Fabricators, L.L.C.South Dakota
Baldwin Contracting Company, Inc.California
Central Oregon Redi-Mix, LLCOregon
Concrete, Inc.California
Connolly-Pacific Co.California
D S S CompanyCalifornia
E & ER CompanySouth Dakota
Ellis & Eastern CompanySouth Dakota
Fairbanks Materials, Inc.Alaska
Granite City Ready Mix, Inc.Minnesota
Hawaiian CementHawaii
Jebro IncorporatedIowa
JTL Group, Inc. (Montana Corporation)Montana
JTL Group, Inc. (Wyoming Corporation)Wyoming
Kent's Oil ServiceCalifornia
Knife River BenefitCo, LLCDelaware
Knife River Corporation - Mountain WestDelaware
Knife River Corporation - North CentralMinnesota
Knife River Corporation - NorthwestOregon
Knife River Corporation - SouthTexas
Knife River Dakota, Inc.Delaware
Knife River Hawaii, Inc.Delaware
Knife River Marine, Inc.Delaware
Knife River Midwest, LLCDelaware
KRC Holdings, Inc.Delaware
KRC Materials, Inc.Delaware
LTM, IncorporatedOregon
Northstar Materials, Inc.Minnesota
Rail to Road, Inc.South Dakota
Spring Creek Insurance CompanyUtah
Sweetman Const. Co.South Dakota
WHC, Ltd.Hawaii