Miss. Code § 27-31-103
County boards of supervisors and municipal authorities in counties bordering on the Gulf of Mexico are hereby authorized and empowered, in their discretion, to grant exemption from ad valorem taxation in addition to those enumerated in Section 27-31-101, except state ad valorem taxation, on all tangible property, excepting motor vehicles, used in or necessary to the operation of new enterprises completed after May 6, 1958, which enterprises are commonly or are usually designated as hotels, motels, or both.
In the case of the county board of supervisors, the exemption shall not exceed five (5) years and in the case of the municipal authorities, the exemption shall not exceed ten (10) years. Said exemption may be granted in the case of domestic corporations, without regard to the date of its charter, and in the case of foreign corporations, without regard to the date on which it qualified to do business, and is authorized to do business, and in the case of an individual enterprise, said exemption shall be granted from the date said work is commenced.
No new exemption from ad valorem taxes levied for school district purposes shall be granted pursuant to this section from and after July 1, 1990.
Miss. Code § 27-31-103