Oldendorff Carriers has sold its stake in the CSL International Pool and its three vessels trading in the system to Algoma Central.
The German shipowner has also confirmed the sale of two other self-unloaders to a Chinese firm.
Algoma is paying $100m for the 59,700-dwt Alice Oldendorff, the 70,000-dwt Sophie Oldendorff (both built 2000) and the 66,000-dwt Harmen Oldendorff (built 2006).