Long Guang Chen Core Port IPO prospectus is invalid.

According to the disclosure of the Hong Kong Stock Exchange, the Hong Kong IPO prospectus submitted by Changchun Changguang Chenxin Microelectronics Co., Ltd. on June 19, 2025 will be valid for 6 months and will expire on December 19, 2025. At the time of submission, CITIC Securities and Guotai Junan International served as joint sponsors.