Rickmers Holding has hired Mark-Ken Erdmann as deputy chief financial officer effective July 2012, the Hamburg-based carrier said. Edrmann is joining Rickmers, which operates several different cargo vessel divisons, from Bertelmann, a German multinational media company. For Rickmers, he will be responsible for accounting and controlling, tax, IT, human resources, legal affairs, and mergers and acquisitions. “We are making good progress in identifying institutio...