Missouri Code of State Regulations
Title 12 - DEPARTMENT OF REVENUE
Division 10 - Director of Revenue
Chapter 110 - Sales/Use Tax-Exemptions
Section 12 CSR 10-110.200 - Ingredient or Component Part Exemption, as Defined in Section 144.030, RSMo

(A) Component part-a constituent element of a manufactured or fabricated product.

(B) Ingredient-an element in a mixture or compound.

(C) Interacting-means that the materials and component parts or ingredients act upon each other in manufacturing a steel product.

(D) Reacting-means that the materials cause a chemical change in the component parts or ingredients in manufacturing a steel product.

(E) Steel product-the product made entirely of steel resulting from:

(A) Materials, manufactured goods, machinery, and parts that become a component part or ingredient of new personal property to be sold ultimately for final use or consumption are not subject to tax. Purchases of ingredients or component parts are exempt from tax if they are intended to and do become a part of the finished product. The exemption does not apply to materials that are totally consumed and are not intended to and do not become a part of the final product. In order to qualify for this exemption, the material in question must be intended to remain in the finished product in at least trace amounts for a specific purpose.

(B) Materials, including without limitation, slagging materials and firebrick, which are consumed in the manufacturing process by blending, reacting or interacting with or by becoming, in whole or in part, component parts or ingredients of steel products to be sold ultimately for final use or consumption are exempt from tax.

(C) If any portion of purchased material qualifies as an exempt ingredient or component part, the entire purchase is exempt from tax. The material is exempt even if a significant portion is consumed in the manufacturing process.

(D) Materials purchased to be used as an ingredient or component part to repair existing property does not qualify for these exemptions because the property produced from the repair work does not constitute "new personal property."

(A) A toy manufacturer purchases wood, glue, and paint to use in the manufacturing of wooden rocking horses. The purchases of wood, glue and paint are exempt from tax.

(B) A restaurant purchases apple wood to use in the smoking of foods. The restaurant burns the wood in a closed chamber, called a smoker, in which it places the food. The burning wood releases compounds, and small but measurable quantities of the compounds enter and permeate the food. Because a part of the wood, in the form of smoke particles, blends with and remains as part of the finished product, the apple wood may be purchased tax exempt as an ingredient or component part.

(C) An automobile manufacturer purchases wax to wax all automobiles as they leave the manufacturing plant. The wax qualifies as a component part because it is intended to remain with the product.

(D) A steel mill purchases firebrick and various gases to be used in the production of steel. These purchases are exempt.

(E) A steel fabricator purchases welding rods for use in fabricating a product out of steel plates. The welding rods are exempt because they become a component part of new personal property.