Hamburg owner Aug. Bolten is joining MPC Capital's bulker technical management joint venture Ahrenkiel Vogemann Bulk (AVB).
MPC said the merger will be completed shortly to expand AVB's market position "significantly".
The managed fleet will grow to 17 bulkers from 12, with an average age of six years.
"With the accession of Aug Bolten, the company is renamed as AVB Ahrenkiel Vogemann Bolten," MPC said.