Minn. Stat. § 336A.14

A Social Security number maintained by the secretary of state under this section is private data on individuals or nonpublic data, as defined in section 13.02 . Information obtained from the seller of a farm product relative to the Social Security number or tax identification number of the true owner of the farm product and all information obtained from the master or limited list may not be used for purposes that are not related to: (1) purchase of a farm product; (2) taking a security interest against a farm product; or (3) perfecting a farm product statutory lien.