Group 1 - The core point of the news is that Sanmenxia Investment Group Co., Ltd. has received approval from the Shanghai Stock Exchange for a private placement of short-term corporate bonds aimed at professional investors, with a proposed issuance size of 3 billion yuan [1][2]. - The bonds are set to be issued on June 26, 2025, and the issuer has received a credit rating of AA+ from China Chengxin International, with a stable outlook [1][2]. - The underwriter and manager for this bond issuance is Ping An Securities Co., Ltd. [1][2].