Mo. Rev. Stat. § 411.268

Before a license to conduct a warehouse is granted under this chapter, the warehouseman shall file with the director a copy of his schedule of charges for storage and other services. If the warehouseman desires to make any change in the schedule of charges during the license period, he shall file, with the director, a statement in writing showing the proposed charge. Each warehouseman shall keep conspicuously posted the filed schedule of charges for storage and other services rendered in each operational office and these charges must be strictly adhered to.