Mo. Rev. Stat. § 379.030
The persons mentioned in section 379.010 shall be designated as "incorporators", and any such incorporators desiring to form a company for the purpose of transacting the business mentioned in said section, upon either of the plans named in section 379.025, shall file in the office of the director of the department of commerce and insurance a declaration, signed by each of such incorporators, setting forth their intention to form a corporation for the purpose of transacting the business aforesaid, which declaration shall comprise a copy of the articles of incorporation or association proposed to be adopted by them; and they shall publish a notice of such intention once in each week, or oftener, for at least four weeks, in a newspaper of general circulation, published in the county where such corporation is proposed to be located.
§ 379.030, RSMo