Management and sale of surplus material, through a bidding process in auction mode for several Military Organizations of the Brazilian Navy and also public and private companies. Among the materials available are naval means, obsolete special vehicles, waste oils and various scraps, such as office supplies, computers, among others. The auctioning process takes place in the online and face-to-face modalities simultaneously, so that the face-to-face auction allows the previously registered buyers to participate in the process.