As used in this section and §§ 26-51-1212 — 26-51-1214:
(1) “Invested” includes expenditures made from the proceeds of bonds including interim notes or other evidence of indebtedness issued by a municipality, county, or an agency or instrumentality of a municipality, county, or the State of Arkansas, if the obligation to repay the bonds, including interest thereon, is a legal, binding obligation, directly or indirectly, of the taxpayer;
(2) “Production and processing equipment” includes machinery and equipment essential for the receiving, storing, processing, and testing of raw materials and the production, storage, testing, and shipping of finished products, including facilities for the production of steam, electricity, chemicals, and such other materials that are essential to the manufacturing process, but which are consumed in the manufacturing process and do not become essential components of the finished product; and
(3) A taxpayer is a “qualified manufacturer of steel” if:
(A) The taxpayer is a natural person, company, or corporation engaged in the manufacture, refinement, or processing of steel; and
(B) More than fifty percent (50%) of the electricity or natural gas consumed in the manufacture, refinement, or processing of steel by the taxpayer is used either:
(i) To power an electric arc furnace or furnaces, continuous casting equipment, or rolling mill equipment in connection with melting, continuous casting, or rolling of steel; or
(ii) In the preheating of steel for processing through a rolling mill.