Sec. 1. (a) A person is a retail merchant making a retail transaction when the person engages in selling at retail.
(b) A person is engaged in selling at retail when, in the ordinary course of the person's regularly conducted trade or business, the person:
(1) acquires tangible personal property for the purpose of resale; and
(2) transfers that property to another person for consideration.
(c) For purposes of determining what constitutes selling at retail, it does not matter whether:
(1) the property is transferred in the same form as when it was acquired;
(2) the property is transferred alone or in conjunction with other property or services; or
(3) the property is transferred conditionally or otherwise.
(d) Notwithstanding any provision of this article, a person is not making a retail transaction when the person:
(1) acquires tangible personal property owned by another person;
(2) provides industrial processing or servicing, including enameling or plating, on the property; and
(3) transfers the property back to the owner to be sold by that owner either in the same form or as a part of other tangible personal property produced by that owner in the owner's business of manufacturing, assembling, constructing, refining, or processing.