Seroja Investments Limited is a Singapore-based investment holding company. The Company is engaged in the provision of domestic marine cargo and coal transportation services in Indonesia and China. It operates through two segments: freight charter and time charter. Its other services within Singapore include investment holding and the provision of management services. Its freight charters involve domestic routes in Indonesia from Kalimantan to various ports in Java and Sulawesi, and its time charters involve domestic routes around the Sumatra Island. Its tugboats and barges are used to transport thermal coal, sand and other quarry materials, transporting thermal coal from coal mines to thermal power stations and cement companies. It owns and operates a fleet of approximately 60 vessels consisting of tugboats and barges, which navigate waters around the Indonesian archipelago. It also owns Floating Storage and Offtake (FSO) vessel. It operates in Indonesia and Singapore.