Construction sites. A retaining frame has been installed in the reactor building of Akkuyu Unit 4. It is a key structural element of the reactor pit, designed to securely fasten the reactor pressure vessel. The installation operation lasted several hours. The retaining frame was manufactured at Tyazhmash JSC (Russia) and delivered to the Akkuyu NPP site by sea. “The installation of the retaining frame is a key construction milestone on the path to building the fourth power unit. Installing large-size components requires meticulous preparation: it is important to consider all weather factors and ensure that the supporting metal structures, machinery, and qualified personnel are ready. The installation teams successfully accomplished the task,” said Akkuyu Nuclear CEO Sergey Butskikh. Following the installation of the retaining frame, the reactor pit will be filled with a special concrete mix.