A delegation composed of South Korean experts and others inspected the first nuclear power plant on the 23rd, focusing on the treatment water discharge into the sea plan of TEPCO Fukushima Daiichi Nuclear Power Plant. The inspection plan lasts until the 24th. The inspection team confirmed the multi nuclide removal equipment (ALPS) for purifying water contaminated with radioactive substances, the equipment for measuring tritium activity in treated water, and the equipment for discharging into the sea.

After his inspection on the 23rd, the Chairman of the South Korean Atomic Energy Safety Commission, Liu Guoxi, who served as the head of the delegation, gave an interview to the media and said, We have seen all the equipment we want to see. It is said that the inspection team focused on the structure of measuring the activity of radioactive substances before discharging the treated water into the sea.

The delegation to Japan was agreed up at the Japan-South Korea summit meeting on the 7th. The delegation consisted of 21 experts in the fields of nuclear power and radiation, and stated that "the safety will be evaluated based on scientific evidence." On the 25th, it is planned to hold a summary meeting in view of the contents of the field trip.