According to an aspect of the present invention, there is provided a cartridge detachably mountable to a main assembly of an image forming apparatus, comprising an electric energy receiving member; a frame of resin material; an electrode member which is molded by injecting electroconductive resin material into the frame which provides an electroconductive path between the electric energy receiving member and a main assembly electrical contact provided in the main assembly when the cartridge is mounted to the main assembly, the electrode member having a projected portion projected from a surface of the frame for contacting the main assembly electrical contact, the projected portion being provided by changing a direction of flow of the injected electroconductive resin material by the metal mold or the frame.