Mo. Rev. Stat. § 274.240

Any association heretofore or hereafter organized under generally similar laws of another state shall be allowed to carry on any proper activities, operations and functions in this state upon compliance with the general regulations applicable to foreign corporations desiring to do business in this state and all contracts which could be made by any association incorporated hereunder, made by or with such associations shall be legal and valid and enforceable in this state with all of the remedies set forth in this chapter.