Key corporate announcements from the A-share market today include a major semiconductor investment plan from a leading photovoltaic company and a high-profile executive detention.
Tcl Zhonghuan Renewable Energy Technology Co.,Ltd. (SHE: 002129) announced that its subsidiary, Zhonghuan Leading, plans to invest approximately 11.96 billion yuan to construct an integrated circuit semiconductor silicon wafer project in Shenzhen. The project, to be undertaken by Shenzhen Zhonghuan Leading, aims for a monthly production capacity of 700,000 12-inch polished wafers, epitaxial wafers, and test wafers, with a construction period of 60 months. Funding will come from the company's own funds, equity financing, and syndicated loans. This investment is intended to bring the company closer to downstream markets, enhance its full-product capabilities, and significantly increase its 12-inch wafer production capacity and its share in the logic and memory semiconductor silicon wafer product segments.
Separately, Huichen Co., Ltd. disclosed that its actual controller, Chairman, and General Manager Zhao Long has been placed under criminal detention by the Haidian Branch of the Beijing Municipal Public Security Bureau on suspicion of the crime of illegally disclosing or failing to disclose important information. The company stated that it has made proper arrangements for related work and that its daily operations and all business activities remain normal and orderly.
Jiuzhou Yigui Co., Ltd. announced plans to acquire a stake in a semiconductor equipment firm. The company intends to invest 69,989,600 yuan of its own or self-raised funds to subscribe for 9.83 million yuan in new registered capital of Jiangsu General Semiconductor Co., Ltd. Upon completion of the capital increase, Jiuzhou Yigui is expected to hold approximately 6.4709% of General Semiconductor. The target company focuses on the R&D and manufacturing of high-end semiconductor industrial equipment and materials, specializing in laser stealth cutting technology and is a leader in the import substitution process. This investment aims to advance the company's "Acoustic Print Digital Monitoring System Technology Upgrade" strategy, optimize its industrial layout in the field of industrial artificial intelligence, and deepen its involvement in high-end semiconductor manufacturing to capitalize on the industry's explosive growth opportunities.
ST Wenfeng announced that both the company and its controlling shareholder, Wenfeng Group, received a formal investigation notice from the China Securities Regulatory Commission (CSRC) on July 17, 2026. The CSRC has decided to investigate the parties for suspected violations of information disclosure regulations. The company stated that its current operational activities are normal and the investigation is not expected to have a significant impact on production and operations. During the investigation period, the company will fully cooperate with the CSRC and fulfill its information disclosure obligations.
Key Financial Performance Updates
CSSC Special Gas Co., Ltd. reported a first-half net profit of 348 million yuan, representing a year-on-year increase of 95.63%.
Deco (Wuxi) Co., Ltd. expects its first-half net profit to be between 89 million yuan and 106 million yuan, marking a significant year-on-year growth of 216.80% to 277.31%.
Risk Warnings from Volatile Stocks
Meig Smart Technology Co.,Ltd. clarified that while edge-side AI and robotics are important application directions for its products, there is uncertainty regarding whether expected benefits can be achieved.
Daoming Optics & Chemical Co., Ltd., which saw its stock price rise by the daily limit for two consecutive trading sessions, stated it currently has no business related to AI smartphones.
Changshan Pharmaceutical Co., Ltd. indicated that there remains uncertainty regarding whether and when its drug, Aibennatai, will ultimately receive approval for market launch.
Gansu Engineering Consulting Group Co., Ltd. noted that Goldman Sachs International holds a relatively low proportion of the company's shares.
Share Buyback and Shareholding Changes
Lingyi iTech (Guangdong) Company plans to increase the total amount of funds for its share repurchase program to between 400 million yuan and 800 million yuan.
Sowin Electric Co., Ltd. announced that its Chairman has proposed a share buyback plan involving 30 million yuan to 60 million yuan.
Sanan Optoelectronics Co., Ltd. reported that Chairman Lin Zhiqiang has completed his share increase plan, accumulating purchases worth 39.88 million yuan between June 12 and July 17.
Major Contract Awards
Shaanxi Construction Engineering Group Co., Ltd. has won bids for two major construction projects with a combined value of 3.613 billion yuan.
Hong Sheng Hua Yuan Steel Tower Co., Ltd. is the preliminary winning bidder for State Grid projects with a total estimated value of approximately 745 million yuan.
Tongguang Cable Co., Ltd. is the preliminary winning bidder for State Grid projects with a total estimated value of approximately 229 million yuan.
Tianyi Comheart Telecom Co.,Ltd is the preliminary winning bidder in a China Mobile centralized procurement project for smart home gateway products.
Other Announcements
Topgen Biopharma disclosed that its actual controller, Luo Weiguo, has received a prior administrative penalty notice from the CSRC.
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