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