Mo. Rev. Stat. § 355.176
2. If a corporation has no registered agent, or the agent cannot with reasonable diligence be served, the corporation may be served by registered or certified mail, return receipt requested, addressed to the secretary of the corporation at its principal office shown in the most recent corporate registration report filed under section 355.856. Service is perfected under this subsection on the earliest of:
(L. 1994 H.B. 1095, A.L. 1996 S.B. 768, A.L. 2005 H.B. 393, A.L. 2009 H.B. 481)
CROSS REFERENCE:
Applicability of statute changes to cases filed after August 28, 2005, 538.305