The largest existing ships in operation for ocean transport are dry bulkers owned and operated by the Brazilian iron-ore conglomerate vale,call"vale-max". In april 2013,the latets vessel of this series,the vale korea,enter into service, with a capacity of 402,303 dwt. While initally built to call in chinese ports, vale is now developing trans-shipment hubs in malaysia and the philippines as the shios are not allow to enter ports in china fully load. Due to regulatory limitations in china, vale-max ships that enter chinese ports in early 2013 were registered as just under 300,000 dwt.