On the afternoon of June 30, Environment Minister Han Wha-jin delivered a congratulatory speech at the 2023 Seoul Climate Energy Conference. The conference was held at the Korea Chamber of Commerce & Industry in Jung-gu, Seoul. 

On the afternoon of June 30, Environment Minister Han Wha-jin attended the 2023 Seoul Climate Energy Conference alongside Seoul Mayor Oh Se-hoon, Dr. Yoo Young Sook, Chairperson of the Climate Change, and other participants. A group commemorative photo was taken. The conference was held at the Korea Chamber of Commerce & Industry in Jung-gu, Seoul.