Abstract: A system for maritime transportation and distribution of bulk raw materials includes a series of containers, a carrier vessel, a container unloading dock for unloading material from each container, and a loading dock for loading material into each container, each container having openings in the stern and bow walls for loading and unloading materials, provided with watertight covers and/or valves, and having no hatches on deck so that the containers can be stacked one on the other, the vessel having a hold provided with a port for the flotation loading and unloading of the containers into and out of the hold, the hold comprising retention devices to lock each container to the structure of the carrier vessel, in the stowage position the containers being stacked one on the other in a multilayer arrangement, the unloading dock being a sloping bed graving dock which includes a tunnel located underneath the same in communication with the floor of the dock through openings provided with watertight covers, and a con