Mich. Comp. Laws § 458.407
Any corporation organized under the provisions of this act whose corporate existence is about to expire by limitation may extend its corporate existence for a term not exceeding 30 years, by filing with the corporation and securities bureau of the department of commerce duly attested copies of a resolution adopted by such corporation at a meeting called in accordance with the provisions of its bylaws expressing a desire to so extend its corporate existence, and upon the filing of such resolution as above specified, the corporate existence of such body shall be extended in accordance with the terms of such resolution for a term of not exceeding 30 years from the date of the expiration of its former term, and all rights of property and of contract shall remain unimpaired and the corporate identity of such body shall remain unchanged.
MCL 458.407