Mich. Comp. Laws § 211.9k

Sec. 9k. For taxes levied after December 31, 2007, personal property classified under section 34c as industrial personal property or commercial personal property is exempt from the tax levied by a local school district for school operating purposes to the extent provided under section 1211 of the revised school code, 1976 PA 451, MCL 380.1211. For taxes levied after December 31, 2007, personal property classified under section 34c as industrial personal property is exempt from the tax levied under the state education tax act, 1993 PA 331, MCL 211.901 to 211.906, as provided in section 3 of the state education tax act, 1993 PA 331, MCL 211.903.