RheinCargo GmbH & Co. KG RheinCargo GmbH & Co. KG operates freight transport in Germany and is also the operator of one of the largest inland port operations in Europe. It was founded in 2012 as a joint venture between Häfen und Güterverkehr Köln AG (HGK) and Neuss-Düsseldorfer Häfen GmbH & Co. KG (NDH). Before RheinCargo was founded, all vehicles were owned by HGK.