This guide provides a summary of significant corporate announcements and trading notifications for June 30, 2026, to assist investors in navigating the market.
Trading Halts and Resumptions
Several companies have announced changes to their trading status. Trading in the shares of *ST AiAi (603580), *ST Dasheng (600892), and *ST Yazhen (603389) has been suspended.
Conversely, trading is set to resume for *ST Dongzhi (002175), ST Quanyin (300087), and ST Rongke (300290).
Major Corporate Developments
Rike Chemical (300214) has announced a trading halt effective June 29, 2026, as it plans to acquire a controlling stake in Shandong Genyuan New Materials Co., Ltd. through a combination of share issuance and cash payment, alongside a fund-raising effort. The final plan remains under discussion.
Zhongmin Energy (600163) disclosed plans to invest approximately 7.335 billion yuan in the Changle Offshore Concentrated Grid Connection Project. The project, which has received regulatory approval, will be executed by a subsidiary.
Raycus Laser (300747) stated its board has approved a subsidiary's investment of 53.16 million yuan in a second-phase project to build a digital production line for high-power doped specialty optical fiber, aiming to enhance R&D capabilities.
Nanya New Material (688519) plans to invest 790 million yuan in a project to develop and industrialize high-end copper-clad laminates, with an annual capacity target of 14 million square meters, to be implemented by a wholly-owned subsidiary.
Wufang Photoelectric (002962) clarified that its TGV (Through Glass Via) technology, used in optical imaging, has not generated any bulk orders and the company has not provided samples or supplies to CPO (Co-Packaged Optics) or optical module manufacturers. This announcement follows significant stock price volatility.
Haichuan Intelligence (300720) plans to acquire a 15.30% stake in Nanjing Jiyi Semiconductor Technology Co., Ltd. for 130 million yuan, as part of its strategic expansion into the semiconductor industry.
Fibocom (300638) intends to acquire a 37.16% stake in Hangsheng Electronics for 1.428 billion yuan in cash. Post-transaction, it will control 51.40% of the target company, aiming to vertically integrate its communication module business with automotive electronics.
Hongwei Technology (688711) issued a risk warning, noting that its business ventures in emerging areas like AIDC, humanoid robots, and nuclear fusion are still in early-stage development or pilot phases, contributing minimally to current revenue and profits.
Maxscend (300782) has signed an equipment procurement contract worth approximately 890 million yuan (including tax) for computing power servers, with deliveries scheduled to be completed by the end of September 2026. The company noted associated risks as formal leasing agreements are not yet in place.
Youyan Silicon (688432), whose shares have risen sharply for two consecutive days, reminded investors of the cyclical nature of the semiconductor industry and advised caution against market rumors.
Fenghua Advanced Technology (000636), following severe stock price fluctuations, clarified that Nvidia has not conducted any product certification for the company. Its high-end projects are still under construction and will not significantly impact this year's performance.
Vontron Technology (000920) stated that revenue from semiconductor and liquid cooling-related businesses accounted for no more than 1% of its total revenue from the beginning of 2026 to the date of the announcement, following notable stock price movements.
ST Suning (002024) announced that a Nanjing court has ordered Dalian Wanda Group to pay 1.747 billion yuan in remaining funds plus interest for delayed payment.
Xingye Shares (603928) noted that during its recent period of stock price volatility, its third-largest shareholder, Wang Wenhao, reduced his holdings in accordance with a previously disclosed plan.
Wepig (603956), after significant share price gains, clarified it has no involvement in the liquid cooling sector, with no related projects, orders, or revenue. Its water management platform uses AI development technology common in the industry.
Financial Performance Updates
Shengda Resources (000603) forecast a significant increase in its first-half 2026 net profit, expecting it to be between 350 million and 400 million yuan, representing year-on-year growth of 399.31% to 470.64%. This growth is attributed to increased production and sales from a subsidiary and rising precious metal prices.
Share Buyback Plans
Zhaowei机电 (003021) announced its board approved a plan to repurchase H-shares with a total value not exceeding 120 million Hong Kong dollars to safeguard shareholder interests and boost investor confidence.
Weigang Technology (001256) plans to repurchase its own shares with a total value between 15 million and 30 million yuan, at a price not exceeding 36 yuan per share, for future employee incentive plans.
Shareholding Changes
Tongyu Heavy Industry (300185) disclosed that its controlling shareholder, Shandong Guohui Capital Co., Ltd., plans to increase its holdings in the company by 150 million to 300 million yuan over the next six months.
Zhuhai CosMX Battery (688772) announced that shareholder Ningbo Huijincheng plans to reduce its stake by up to 2% of the company's total shares.
Novogene (688105) stated that shareholder Guoshou Chengda plans to reduce its holdings by up to 3% of the company's total shares.
Pinming Technology (688109) announced that several senior executives plan to collectively reduce their holdings by up to 1.09% of the company's total shares.
Major Contract Awards
China State Construction Engineering (601668) announced it has recently secured major projects with a combined value of 19.09 billion yuan, representing 0.9% of its audited 2025 revenue. The projects span building construction and infrastructure development.
Beixin Road & Bridge (002307) reported it, as part of a consortium, has won a bid for a highway project (S611 line) valued at 278 million yuan. The project duration is 730 days, and the contract value represents 2.47% of its 2025 audited operating revenue.
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