Construction of unit 3 was delayed by the 2011 Fukushima nuclear disaster in Japan, but finally began on 27 December 2012. Construction of unit 4 would follow up about a year later, on 27 September 2013. Unit 3 finished construction and went critical in late December 2017 and started commercial operation a few months later in early 2018,while Unit 4 went critical in late September 2018 and finished construction a month later in October. It started commercial operation in late December 2018. Initially, units 3 and 4 are owned by ASE, but on 20 January 2020, ASE transferred control of unit 3 to Jiangsu Nuclear Power Corporation.