The final weld of the main pipeline for Unit 8 at the Tianwan nuclear power station in Jiangsu province, eastern China, has been completed, paving the way for further commissioning work.
The China Nuclear Energy Association (CNEA) said the last weld in the transition section of the main pipeline passed non-destructive testing on 10 August 2025, marking completion of all pipeline welding for the unit.
Tianwan-8 is a Russia-designed VVER-1200 pressurised water reactor unit. Construction began in February 2022.