Queen Alexandra II is a self-propelled hopper barge built in 2006 by Shun Xiang Shipyard, China, and registered in Jakarta. With a length of 57.44 meters and a hopper capacity of 1,500 m³, it is powered by twin 339 kW engines and reaches speeds of up to 10 knots.

It has supported key dredging projects at PLTU Waai Ambon, Tanjung Perak Port, and Tanjung Priok Port. Renowned for its efficiency and reliability, Queen Alexandra II plays a vital role in Indonesia’s maritime and port development.