The pouring of the last layer of concrete used for capping the dome was finished on 10 April, CNNC said.
There are two plants under construction at the Kanupp site, also known as Karachi. They are the first of China’s indigenous Generation III HPR1000, or Hualong One, reactor design to be built overseas.
At Kanupp-2, reactor internals were installed in January 2019 and cold functional testing was completed in December 2019.
Earlier this month installation was completed of the reactor internals for Kanupp-3.
The units are scheduled for commercial operation in 2021 and 2022.