Michigan Compiled Laws, Chapter 450. Corporations § 450.1711

Sec. 711. (1) A domestic corporation owning not less than 90% of the outstanding shares of each class of another domestic corporation or corporations may merge the other corporation or corporations into itself, or may merge itself, or itself and any such subsidiary corporation or corporations, into any such subsidiary corporation, without approval of the shareholders of any of the corporations, except as provided in section 713.  1 The board of the parent corporation shall approve a plan of merger setting forth those matters required to be set forth in a plan of merger under section 701.  2 Approval by the board of any such subsidiary corporation is not required.

(2) If the parent corporation owns less than 100% of the outstanding shares of any constituent subsidiary corporation, the parent corporation shall mail promptly after the filing of the certificate of merger to each minority shareholder of record of each such subsidiary corporation, unless waived in writing, a copy or summary of the plan of merger and shall comply with the provisions of this chapter respecting dissenters' rights.

(3) The grant of power to merge under this section does not preclude the effectuation of a merger as elsewhere provided in this act.