The vessel’s fully revolving crane can lift 2,200 tonnes while anchored, and the barge was delivered on 9 July 2026 at Jiangmen, Guangdong Province. Built by Jiangmen Hengtong Shipbuilding, the 110 m non-self-propelled Sihang Yongsheng can also submerge to transport structures of up to 10,000 tonnes on its 4,800 m² deck. State media report that the unit will be deployed for offshore wind farm, cross-sea bridge, port, and deep-sea resource construction.