Ind. Code § 6-2.5-4-1
(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:
(c) For purposes of determining what constitutes selling at retail, it does not matter whether:
(d) Notwithstanding any provision of this article, a person is not making a retail transaction when the person:
(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.
As added by Acts 1980, P.L.52, SEC.1. Amended by P.L.2-1987, SEC.14; P.L.6-1987, SEC.5; P.L.277-1993(ss), SEC.40; P.L.257-2003, SEC.19; P.L.81-2004, SEC.5; P.L.227-2013, SEC.2; P.L.146-2020, SEC.12; P.L.137-2022, SEC.17.