While set-schedule vessels cater to common trade manufacturers, the clients of non-scheduled bulk carriers are large companies or organizations such as Taiwan Power and the China Steel Corporation.
定期船的服務對象是為數眾多的貿易商，不定期散裝船的客戶則是少數幾個大貨主。以國內佔大宗物資進口量最多的煤炭而言，貨主是台電、中鋼等大機構，小麥、玉米穀物的貨主則是各穀物進口商公會。