CSSC delivers record-breaking self-discharger to mining giant Rio Tinto

The ship underwent a 12-day sea trial in the East China Sea from late June to early July.

CSSC said in a statement that the ship's delivery marks a critical leap for China from a follower to a global leader in the high-end self-unloading transshipment vessel sector.

A self-discharger, or self-unloader, is a ship that is able to discharge its cargo using its own onboard machinery, without relying on shore-based cranes, grabbers, or conveyor infrastructure.

Zhang Xinlong, general manager of CSSC Chengxi Shipyard, said that Rio Tinto has ordered five such self-dischargers, with Wontanara being the first unit.

"The first ship's construction kicked off in May last year, and the 14-month delivery cycle has testified to Chengxi's robust research and manufacturing strength in this field," Zhang said.