Michigan Compiled Laws, Chapter 445. Trade and Commerce § 445.611

(a) “Customer” means a person who causes a moldbuilder to fabricate, cast, or otherwise make a die, mold, or form for use in the manufacture, assembly, or fabrication of plastic parts, or a person who causes a molder to use a die, mold, or form to manufacture, assemble, or fabricate a plastic product.

(b) “Moldbuilder” means a person who fabricates, casts, or otherwise makes, repairs, or modifies a die, mold, or form for use in the manufacture, assembly, or fabrication of plastic parts.

(c) “Molder” means a person who uses a die, mold, or form to manufacture, assemble, or fabricate plastic parts.

(d) “Person” means an individual, firm, partnership, association, corporation, limited liability company, or other legal entity.