Michigan Compiled Laws, Chapter 570. Liens § 570.194

Sec. 44. Every person who shall furnish or perform any labor for any corporation, organized for the purpose of mining, smelting or manufacturing iron, copper, silver, or other ores or minerals, in the upper peninsula of this state, and every bona fide holder of any draft or order for the payment of money due for any such labor, issued or drawn by any officer, clerk or agent of any such corporation, shall have a lien for the amount due thereon or therefor, upon all the real and personal property of such corporation, lying and being in the said upper peninsula, which said lien shall take precedence of all other debts, judgments or decrees, liens or mortgages, against such corporation, except liens accruing to this state for taxes, fines or penalties: and every such lien may be proceeded on, enforced and collected out of such real and personal property, or either of the same, in the same manner and under the same regulations, limitations and conditions, as near as may be, as are herein provided for the enforcement and collection of other liens on real or personal property, as the case may be: Provided, That in the enforcement of any lien provided for in this section, it shall not be necessary to file, prove or produce any written contract relative to the labor on which such lien is based.