Mississippi Code Title 75. Regulation of Trade, Commerce and Investments § 75-9-313

(a) Goods are “fixtures” when they become so related to particular real estate that an interest in them arises under real estate law;

(b) A “fixture filing” is the filing in the office where a mortgage on the real estate would be filed or recorded of a financing statement covering goods which are or are to become fixtures and conforming to the requirements of subsection (5), Section 9-402 (75-9-402);

(c) A mortgage is a “construction mortgage” to the extent that it secures an obligation incurred for the construction of an improvement on land including the acquisition cost of the land, if the recorded writing so indicates.

(a) The security interest is a purchase money security interest, the interest of the encumbrancer or owner arises before the goods become fixtures, the security interest is perfected by a fixture filing before the goods become fixtures or within twenty (20) days thereafter, and the debtor has an interest of record in the real estate or is in possession of the real estate; or

(b) The security interest is perfected by a fixture filing before the interest of the encumbrancer or owner is of record, the security interest has priority over any conflicting interest of a predecessor in title of the encumbrancer or owner, and the debtor has an interest of record in the real estate or is in possession of the real estate; or

(c) The fixtures are readily removable factory or office machines or readily removable replacements of domestic appliances which are consumer goods, and before the goods become fixtures the security interest is perfected by any method permitted by this chapter; or

(d) The conflicting interest is a lien on the real estate obtained by legal or equitable proceedings after the security interest was perfected by any method permitted by this chapter.

(a) The encumbrancer or owner has consented in writing to the security interest or has disclaimed an interest in the goods as fixtures; or

(b) The debtor has a right to remove the goods as against the encumbrancer or owner. If the debtor's right terminates, the priority of the security interest continues for a reasonable time.

(9)(a) Subject to provisions in subsections (4) and (5) of this section, but notwithstanding any contrary provision of the law of this state, a security interest in fixtures or goods that become fixtures shall not have priority over the conflicting interest of an encumbrancer or owner of real estate whose interest has been perfected under real estate law prior to the perfection of a security interest in fixtures against the real estate.

(b) For the purposes of this section, a security interest in fixtures is perfected against the real estate only when the filing or recording of an instrument, with respect to such security interests, constitutes constructive notice of such interest under the laws of this state, other than this chapter, which are applicable to the filing or recording of real estate mortgages and deeds of trust; provided, however, that no provision of this chapter nor of any other law of this state shall be construed to require that an instrument filed to perfect a security interest in fixtures shall have the signatures of the parties acknowledged or proved as required by Section 89-3-1, Mississippi Code of 1972.

(c) Subject to the contrary provisions in subsections (4) and (5) of this section, but notwithstanding any contrary provision of the law of this state, no party having a security interest in fixtures which is subordinate to the interest of an encumbrancer or owner of real estate who is not the debtor, may remove his collateral from the real estate without the written permission of such encumbrancer or owner of the real estate.