(1) In connection with the operation of an airport or air navigation facility owned or controlled by an authority, the authority may enter into contracts, leases and other arrangements for terms not to exceed fifty (50) years with any persons:

(a) Granting the privilege of using or improving the airport or air navigation facility or any portion or facility thereof or space therein for commercial purposes;

(b) Conferring the privilege of supplying goods, commodities, things, services or facilities at the airport or air navigation facility; and

(c) Making available services to be furnished by the authority or its agents at the airport or air navigation facility.

(2) Except as may be limited by the terms and conditions of any grant, loan or agreement authorized by Section 61-3-25, Mississippi Code of 1972, an authority may, by contract, lease or other arrangements, upon a consideration fixed by it, grant to any qualified person for a term not to exceed fifty (50) years, the privilege of operating, as agent of the authority or otherwise, any airport owned or controlled by the authority. However, no person shall be granted any authority to operate an airport other than as a public airport or to enter into any contracts, leases or other arrangements in connection with the operation of the airport which the authority might not have undertaken under subsection (1) of this section.

(3) All airport-related contracts, leases and other arrangements entered into pursuant to this section are deemed to serve a public and governmental purpose as a matter of public necessity; therefore, all airport-related contracts, leases, and other arrangements and all structures, improvements and other facilities erected, installed, constructed or located in connection therewith on an airport or air navigation facility owned or controlled by an authority, or any portion of facility thereof or space therein, shall be free and exempt from all state, county and municipal ad valorem taxes on real property and personal property for so long as may otherwise be lawful, and the charges, rentals and fees received by an authority in connection with airport-related contracts, leases and other arrangements shall be deemed to be in lieu of said taxes.