Key Points - The article summarizes important announcements from various listed companies in the Shanghai and Shenzhen stock markets on September 12, providing insights for investors [3] Group 1: Major Events - Tianpu Co., Ltd. will hold a control transfer briefing on September 16, 2025, to discuss the transfer of control with investors [4] - *ST Dongtong may face mandatory delisting due to significant violations, as the China Securities Regulatory Commission has issued a notice regarding false disclosures in financial reports from 2019 to 2022 [5][6] - Zhongchao Holdings signed a strategic cooperation agreement with Hefei Intelligent Robot Research Institute for technology collaboration in intelligent robotics and aerospace [7] Group 2: Share Transfers - Huading Co., Ltd. shareholders plan to transfer a total of 9.26% of the company's shares through a public solicitation, with a minimum transfer price of 5.36 yuan per share [8] Group 3: Equity Transfers - Shanghai Mechanical and Electrical Co., Ltd. plans to publicly transfer 67% of its subsidiary, Simik Welding Materials, with an estimated value of 291 million yuan [9] Group 4: Share Buybacks - Chuangyuan Co., Ltd. intends to repurchase between 2.8 million and 3.7 million shares at a price not exceeding 41.5 yuan per share [12] - Yishitong plans to repurchase shares worth between 30 million and 55 million yuan, with a maximum price of 40.69 yuan per share [13] Group 5: Financing - Tuojing Technology plans to raise up to 4.6 billion yuan through a private placement to fund high-end semiconductor equipment and technology development projects [14]