At 15:09 on October 21, the world's first reactor of China Nuclear Power Fuqing Nuclear Power Unit 5 in Fuqing City, Fuzhou City, Fujian Province, reached a critical state for the first time, marking that the unit officially entered the state of operation with power and took an important step towards completion and operation.

Panorama of the "Hualong No.1" demonstration project site.
"Hualong No. 1" is the world's first reactor Fuqing nuclear power unit 5 main control room.
With the approval of the State Nuclear Safety Administration, the East China Nuclear and Radiation Safety Supervision Station verified the release, and Unit 5 began the critical operation of the reactor. By diluting the first-loop boron concentration and lifting the control rod operation, the reactor reached a critical state for the first time.
"Hualong No. 1" is the world's first loading pool.
In the critical process of the unit, Fuqing Nuclear Power adheres to the principle of "safety first, quality first", adheres to the core values of "responsibility, safety, innovation and collaboration", carries forward the strict and meticulous work style, operates in strict accordance with technical regulations, the whole process is smooth and orderly, and the system operating parameters are normal.
(Source: People's Daily client Fujian Channel)