<SEC-DOCUMENT>0001466593-25-000047-index.html : 20250303
<SEC-HEADER>0001466593-25-000047.hdr.sgml : 20250303
<ACCEPTANCE-DATETIME>20250303092141
ACCESSION NUMBER:		0001466593-25-000047
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20250303
DATE AS OF CHANGE:		20250303

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Otter Tail Corp
		CENTRAL INDEX KEY:			0001466593
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
		ORGANIZATION NAME:           	01 Energy & Transportation
		IRS NUMBER:				270383995
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-53713
		FILM NUMBER:		25694501

	BUSINESS ADDRESS:	
		STREET 1:		215 S CASCADE ST
		STREET 2:		PO BOX 496
		CITY:			FERGUS FALLS
		STATE:			MN
		ZIP:			56538-0496
		BUSINESS PHONE:		866-410-8780

	MAIL ADDRESS:	
		STREET 1:		215 S CASCADE ST
		STREET 2:		PO BOX 496
		CITY:			FERGUS FALLS
		STATE:			MN
		ZIP:			56538-0496

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Otter Tail Holding Co
		DATE OF NAME CHANGE:	20090618
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>a2025proxy-noticeofavailab.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: a2025proxy-noticeofavailab.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>ottertailcorporation_vxnaxb.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: ottertailcorporation_vxnaxb.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>ottertailcorporation_vxnaxc.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: ottertailcorporation_vxnaxc.jpg

</DOCUMENT>
</SEC-DOCUMENT>