Miss. Code Ann. § 27-65-20: Miss. Code Ann. § 27-65-20

Upon every person engaging or continuing within this state in the business of selling machinery, machine parts and/or equipment to an operator or lessee of any structures, facilities and lands acquired and operated or leased pursuant to any of the provisions of Chapter 9, Title 59, Mississippi Code of 1972 , which machinery, machine parts and/or equipment is to be located on and used exclusively and directly in the operation of such structures, facilities and lands, there is hereby levied, assessed and shall be collected a tax equal to one and one-half percent (1- 1 / 2 %) of the gross proceeds of such retail sales of the business.