<PAGE>
Exhibit 4
[GRAPHIC MATERIAL
OMITTED - MINNESOTA SECRETARY OF STATE AN-240576
THE GREAT STATE OF MINNESOTA
SEAL OF THE AMENDMENT TO CERTIFICATE OF ASSUMED NAME FILED
STATE OF Minnesota Statutes Chapter 333 AUG 29 2000
MINNESOTA - 1858] /s/ Mary Kiffmeyer
Secretary of State
Read the directions on reverse side before completing. Filing Fee: $25.00
The filing of an assumed name does not provide a user with exclusive rights to
that name. The filing is required for consumer protection in order to enable
consumers to be able to identify the true owner of a business.
PLEASE TYPE OR PRINT LEGIBLY IN BLACK INK FOR RECORDING PURPOSES.
1. State the exact assumed name under which the business is or will be
conducted: one business name per application
ALLETE
--------------------------------------------------------------------------------
2. State the address of the principal place of business.
30 West Superior Street Duluth MN 55802
--------------------------------------------------------------------------------
Street City State Zip code
(A complete street address or rural route and rural route box number is
required; the address cannot be a P.O. Box.)
3. List the name and complete street address of all persons conducting business
under the above Assumed Name. Attach additional sheet(s) if necessary. If the
business owner is a corporation or other business entity, list the legal
name and registered office address.
Name (please print) Street City State Zip
Minnesota Power, Inc. 30 West Superior Street Duluth MN 55802
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
4. This certificate is an amendment of Certificate of Assumed name number
0240576 originally filed on August 8, 2000 under the name
--------------- --------------------------
Allete
------------------------------------------------------------
(List the previous name only if you are amending that name.)
5. I certify that I am authorized to sign this certificate and I further certify
that I understand that by signing this certificate, I am subject to
the penalties of perjury as set forth in Minnesota Statutes section 609.48
as if I had signed this certificate under oath.
/S/ Philip R. Halverson
------------------------------------------------------------
Signature(ONLY one person listed in #3 is required to sign.)
8/28/00 Philip R. Halverson, Vice President, Secretary and
----------------- ------------------------------------------------------------
Date Print Name and Title General Counsel
Ingrid Kane-Johnson 218-720-2534
------------------------------------------------------------
Contact Person Daytime Phone Number
05920882 Rev. 11/98
835662
