CNNC Installs Inner Steel Containment Dome on Unit 1 at Xudapu

China National Nuclear Corporation and its contractors installed the inner steel containment dome, described in project documents as the inner top head, for Unit 1 at the Xudapu nuclear power station in Liaoning province, northeast China. The lift and placement took place on February 23, 2026 when workers hoisted and positioned the inner top head for Unit 1.

The component installed at Xudapu is the internal steel dome that functions as the inner top head of the containment structure for Unit 1. Project references use several transcriptions of the plant name, Xudapu, Xudabao, and Xudabu, all identifying the same site in Liaoning province. The operation on February 23 completed the scheduled placement of that particular containment element for Unit 1.

CNNC led the installation with its on-site contractors and rigging crews; workers executed the hoisting and alignment activities during the lift on February 23, 2026. The work involved the coordinated placement of the inner steel dome into its designed position for Unit 1 at the Xudapu station, a task listed in the project timeline under containment assembly operations for the unit.

Having installed the inner top head for Unit 1, CNNC has recorded a physical assembly milestone at Xudapu in Liaoning. The action on February 23 represents a step in the construction sequence for Unit 1 at the Xudapu plant and will feed into subsequent containment and internal outfitting tasks identified for the unit within the broader project schedule.

The installation for Unit 1 at Xudapu on February 23, 2026, under CNNC and contractor supervision, closes the chapter on this particular containment lift and positions Unit 1 to move forward with the next planned phases of assembly at the Xudapu nuclear power station in northeast China.