OC Aggnes was built by Yantai CIMC Raffles Offshore Limited based on offshore standards. Theoretical weight is 30,000t. It features a world class hydraulic self-unloading system at 3,000mt ( 2,500 m3) per hour for transporting cargo, such as coal, stone and grain etc. OC Aggnes is the first self-unloading bulk carrier in China. OC Aggnes was delivered in January 2010. Currently, it is managed by Ocean Challenger and under operation in Northern Europe.