Exhibit 21
SUBSIDIARIES OF THE REGISTRANT
As of December 31, 2023
Name of Organization (a) | State or Country | ||||
ALLETE, Inc. (d/b/a ALLETE; Minnesota Power; Minnesota Power, Inc.; | Minnesota | ||||
Minnesota Power & Light Company) | |||||
ALLETE Automotive Services, LLC | Minnesota | ||||
ALLETE Enterprises, Inc. | Minnesota | ||||
ALLETE Clean Energy, Inc. | Minnesota | ||||
ACE O&M, LLC | Delaware | ||||
ACE Solar LLC | Delaware | ||||
ACE Wind LLC | Delaware | ||||
ACE Mid-West Holdings, LLC | Delaware | ||||
ACE Gopher Holdings, LLC | Delaware | ||||
ACE Lincoln Heights Holdings, LLC | Delaware | ||||
Cisco Holdings, LLC | Delaware | ||||
MWW Holdings, LLC | Delaware | ||||
Lake Benton Power Associates LLC | Delaware | ||||
Lake Benton Holdings LLC | Delaware | ||||
Lake Benton Power Partners L.L.C. | Delaware | ||||
Storm Lake Power Partners I LLC | Delaware | ||||
Storm Lake II Power Associates LLC | Delaware | ||||
Storm Lake II Holdings LLC | Delaware | ||||
Storm Lake Power Partners II LLC | Delaware | ||||
Red Barn Energy, LLC | Minnesota | ||||
Whitetail Wind, LLC | Minnesota | ||||
ACE South Holdings, LLC | Delaware | ||||
ACE Caddo Class B LLC | Delaware | ||||
ACE-SRE Caddo Holdings, LLC | Delaware | ||||
Caddo Holding Company, LLC | Delaware | ||||
Caddo Wind, LLC | Delaware | ||||
Diamond Spring QOZB, LLC | Delaware | ||||
ACE DS Class B LLC | Delaware | ||||
Diamond Spring, LLC | Delaware | ||||
ACE West Holdings, LLC | Delaware | ||||
ACE GAWW Class B LLC | Delaware | ||||
Great American West Wind, LLC | Delaware | ||||
Glen Ullin Energy Center, LLC | Delaware | ||||
South Peak Wind LLC | Delaware | ||||
Condon Wind Power, LLC | Delaware | ||||
Ruso Wind Partners, LLC | Delaware | ||||
Armenia Holdings, LLC | Delaware | ||||
AMW I Holding, LLC | Delaware | ||||
Armenia Mountain Wind, LLC | Delaware | ||||
Armenia Mountain Wind II, LLC | Delaware | ||||
Thunder Spirit Wind, LLC | Delaware | ||||
ALLETE Enterprises QOF, LLC | Delaware | ||||
ALLETE Power Systems, Inc. | Minnesota | ||||
ALLETE Renewable Resources, Inc. | North Dakota | ||||
ALLETE Transmission Holdings, Inc. | Wisconsin | ||||
ALLETE Transmission Ventures, LLC | Delaware | ||||
ALLETE NPC Holdings, LLC | Delaware | ||||
ASW Partners, LLC | Delaware | ||||
ALLETE South Wind, LLC | Delaware | ||||
Nobles 2 Power Partners, LLC | Delaware | ||||
Exhibit 21
Name of Organization (a) | State or Country | ||||
BNI Energy, Inc. | North Dakota | ||||
BNI Coal, Ltd. | North Dakota | ||||
DLS Manager, LLC | Delaware | ||||
DLS Holdco, LLC | Delaware | ||||
MP Affiliate Resources, Inc. | Minnesota | ||||
New Energy Equity LLC | Delaware | ||||
Rainy River Energy Corporation | Minnesota | ||||
South Shore Energy, LLC | Wisconsin | ||||
Upper Minnesota Properties, Inc. | Minnesota | ||||
Upper Minnesota Properties - Development, Inc. | Minnesota | ||||
ALLETE Properties, LLC (d/b/a ALLETE Properties) | Minnesota | ||||
ALLETE Commercial, LLC | Florida | ||||
Lehigh Acquisition, LLC | Delaware | ||||
Florida Landmark Communities, LLC | Florida | ||||
Interlachen Lakes Estates, LLC | Florida | ||||
Palm Coast Land, LLC | Florida | ||||
ALLETE Water Services, Inc. | Minnesota | ||||
Energy Land, Incorporated | Wisconsin | ||||
MP Investments, Inc. | Delaware | ||||
RendField Land Company, Inc. | Minnesota | ||||
Superior Water, Light and Power Company | Wisconsin |
(a)Certain insignificant subsidiaries are omitted.