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10-K - FORM 10-K - Otter Tail Corpc56502e10vk.htm
EX-32.2 - EX-32.2 - Otter Tail Corpc56502exv32w2.htm
EX-31.2 - EX-31.2 - Otter Tail Corpc56502exv31w2.htm
EX-31.1 - EX-31.1 - Otter Tail Corpc56502exv31w1.htm
EX-32.1 - EX-32.1 - Otter Tail Corpc56502exv32w1.htm
EX-12.1 - EX-12.1 - Otter Tail Corpc56502exv12w1.htm
EX-24.A - EX-24.A - Otter Tail Corpc56502exv24wa.htm
EX-23.A - EX-23.A - Otter Tail Corpc56502exv23wa.htm
Exhibit 21-A
OTTER TAIL CORPORATION
Subsidiaries of the Registrant
February 26, 2010
     
Company State of Organization
Otter Tail Power Company
  Minnesota
Otter Tail Energy Services Company, Inc.
  Minnesota
Overland Mechanical Services, Inc.
  Minnesota
Green Hills Energy, LLC
  Minnesota
Sheridan Ridge I, LLC
  Minnesota
Sheridan Ridge II, LLC
  Minnesota
Otter Tail Assurance Limited
  Cayman Islands
Varistar Corporation
  Minnesota
Northern Pipe Products, Inc.
  North Dakota
Vinyltech Corporation
  Arizona
T.O. Plastics, Inc.
  Minnesota
DMI Industries, Inc.
  North Dakota
DMI Canada, Inc.
  Ontario, Canada
DMI Equipment, LLC
  Delaware
BTD Manufacturing, Inc.
  Minnesota
Miller Welding & Iron Works, Inc.
  Minnesota
ShoreMaster, Inc.
  Minnesota
Galva Foam Marine Industries, Inc.
  Missouri
Shoreline Industries, Inc.
  Minnesota
Aviva Sports, Inc.
  Minnesota
ShoreMaster Costa Rica, Limitada
  Costa Rica
DMS Health Technologies, Inc.
  North Dakota
DMS Imaging, Inc.
  North Dakota
DMS Health Technologies – Canada, Inc.
  North Dakota
DMS Leasing Corporation*
  North Dakota
Aevenia, Inc.
  Minnesota
Moorhead Electric, Inc.
  Minnesota
Foley Company
  Missouri
E. W. Wylie Corporation
  North Dakota
Idaho Pacific Holdings, Inc.
  Delaware
Idaho-Pacific Corporation
  Idaho
Idaho-Pacific Colorado Corporation
  Delaware
AWI Acquisition Company Limited
  Prince Edward Island, Canada
AgraWest Investments Limited
  Prince Edward Island, Canada
 
*     Inactive