March 22 Evening Major Announcements of Shanghai and Shenzhen Listed Companies (Latest Express)

Shanghai and Shenzhen listed companies released important announcements on the evening of March 22. Here is a summary of key notices.

【Major Events】

SMIC Semiconductor plans to invest 160 million yuan to increase capital in Zhuhai Boya and acquire a 20% stake

SMIC Semiconductor (688380) announced on March 22 that it intends to use 160 million yuan of its own funds to increase capital in Zhuhai Boya. After the transaction, the company will hold a 20% stake in Zhuhai Boya. Zhuhai Boya is a chip design company founded with the participation of overseas returnee PhDs, established in 2014. It focuses on R&D and design of storage chips such as NOR Flash. It is a national high-tech enterprise, a “Little Giant” specialized and innovative enterprise, Guangdong Province PhD workstation, Guangdong Engineering Center, and Guangdong Industrial Design Center. Both companies are chip design firms operating in a fabless model, relying on foundries; if they coordinate capacity plans, they can increase overall wafer consumption and deepen cooperation with foundries.

ST Busen: Yanfeng Digital and Aofei Data have no direct relationship or business connection

ST Busen (002569) announced on March 22 that the company previously disclosed a “Prompt Notice on the Share Transfer Agreement Signed by Controlling Shareholder and the Proposed Change of Control,” stating that controlling shareholder Weitongchuang signed a share transfer agreement with Yanfeng Digital. After the transaction, Yanfeng Digital will become the company’s controlling shareholder. Following the announcement, some online forums and chat groups discussed “Aofei Data” and related content. The company verified with Yanfeng Digital that Guangzhou Haomeng Computer Technology Co., Ltd. holds an 11.87% stake in Yanfeng Digital through its wholly owned subsidiary, participating as a limited partner in the Guangzhou Fupu Changyue Equity Investment Fund Partnership. Guangzhou Haomeng is a minority shareholder in Yanfeng Digital. Public information shows that Guangzhou Haomeng has many external investments, and Yanfeng Digital is just one of its indirect holdings with a low stake. There is no direct relationship or business connection between Yanfeng Digital and Aofei Data.

Tengya Precision plans to raise no more than 120 million yuan via private placement for projects including Vietnam power tools manufacturing

Tengya Precision (301125) announced on March 22 that it plans to raise up to 120 million yuan (including issuance costs) through a simplified private placement to specific investors. The funds will be used for the Vietnam power tools manufacturing project, Anhui garden tools manufacturing project, and to supplement working capital.

Zhejiang Huaye plans to invest 1.094 billion yuan to build the second phase of the Mu’ao production base

Zhejiang Huaye (301616) announced on March 22 that, according to its strategic development plan, it intends to invest in the Mu’ao production base project. The total investment is 1.492 billion yuan, divided into the approved first phase and the planned second phase. The second phase will invest 1.094 billion yuan to build a digital screw machine factory, establish efficient and flexible production lines, and enhance the capacity for screws, barrels, and collets, breaking through capacity bottlenecks.

Dongfang Xinneng states that recent operations are normal and is advancing major asset purchase

Dongfang Xinneng announced on March 22 that its stock trading prices have deviated by more than 20% over two consecutive trading days (March 19 and 20, 2026). According to the Shenzhen Stock Exchange trading rules, this qualifies as abnormal trading fluctuation. The company’s recent operations are normal, and it is progressing with a major asset purchase under the relevant procedures. No significant changes have occurred in the internal or external business environment.

Minde Bio may face delisting risk warning

Minde Bio (002932) announced on March 22 that its audited 2025 annual profit, net profit, and net profit after deducting non-recurring gains and losses are expected to be negative, and its operating revenue after deductions is below 300 million yuan. According to regulations, the company’s stock may be subject to delisting risk warning after the 2025 annual report is disclosed.

San’an Optoelectronics’ actual controller is detained

San’an Optoelectronics (600703) announced on March 22 that it received notice from Fujian San’an Group that its actual controller, Lin Xiucheng, has been detained and is under investigation by the National Supervisory Commission. Since July 10, 2017, Lin Xiucheng has not held any position in the company. The company’s operations are currently normal.

Hande Information: Collaboration with NVIDIA is still in the sample accumulation stage

Hande Information stated during an investor relations event that their collaboration with NVIDIA is still in the stage of accumulating business model samples. The development path is clear, and they will continue to replicate successful international cases to more clients, acting as a “fusion partner” of capabilities.

Shantui Co. continues to develop mining products and is preparing larger excavators

Shantui Co. said during its earnings presentation that after completing its excavator product line in 2024, it continues to develop mining products: 100-ton and 125-ton models are mature and sold in the market; 200-ton models are undergoing market validation with thousands of working hours; 300-ton models are in trial production, expected to be completed and introduced to the market within the year. The company is also actively preparing for larger-tonnage excavators.

【Performance Highlights】

Huacan Optoelectronics expects a net loss of 438 million yuan in 2025, with reduced losses year-over-year

Huacan Optoelectronics (300323) released its annual report on March 22, reporting revenue of 5.408 billion yuan in 2025, up 31.07% year-over-year; net loss of 438 million yuan, compared to a loss of 611 million yuan in the previous year. The main business involves R&D, production, and sales of LED substrates, epitaxial wafers, and chips. It is a leading supplier in the LED epitaxial and chip industry, maintaining a leading position in domestic sapphire substrates. Micro LED MPD products and GaN power electronic devices have passed reliability tests and are undergoing rapid technological iteration and upgrades to enhance competitiveness.

Xinruye’s 2025 net profit grows 35.98%, plans to pay 3.8 yuan dividend per 10 shares

Xinruye (002946) announced its 2025 annual report on March 22, with revenue of 11.233 billion yuan, up 5.33%; net profit of 731 million yuan, up 35.98%; basic earnings per share of 0.85 yuan. The company plans to pay a cash dividend of 3.8 yuan per 10 shares (tax included).

DianTuo Hydropower reports a 34.07% decline in net profit in 2025

DianTuo Hydropower (600292) announced a quick report on March 22, with total revenue of 12.152 billion yuan in 2025, down 15.9%; net profit of 532 million yuan, down 34.07%; basic earnings per share of 0.12 yuan. The main reason for the decline is the impact of asset restructuring, including the divestment of non-renewable energy assets outside Hunan Province, reduced water inflow in the Yuan River basin, increased intermediary service costs, and losses in environmental engineering projects.

Sinopec’s 2025 net profit drops 36.8%, plans to pay 0.2 yuan per share dividend

Sinopec (600028) announced its annual report on March 22, with revenue of 2.78 trillion yuan, down 9.5%; net profit of 31.809 billion yuan, down 36.8%; basic earnings per share of 0.262 yuan. The 9th Board of Directors proposed a final cash dividend of 0.112 yuan per share (tax included), plus 0.088 yuan per share already paid in mid-2025, totaling 0.2 yuan per share for the year.

【Shareholding Changes】

Xuefeng Technology’s controlling shareholder plans to increase holdings by 150 million to 300 million yuan

Xuefeng Technology (603227) announced on March 22 that its controlling shareholder, Guangdong Hongda, plans to increase its holdings of A-shares by at least 150 million yuan and up to 300 million yuan within 12 months, using funds through the Shanghai Stock Exchange system. The purchase price will not exceed 9.6 yuan per share.

Disen Co. one of the actual controllers plans to reduce holdings by no more than 1%

Disen Co. (300335) announced on March 22 that controlling shareholder and one of the actual controllers, Ma Ge, holding 5.88%, plans to reduce its holdings by no more than 4.7701 million shares (1% of total shares) via centralized bidding.

Haixin Food’s controlling shareholder plans to reduce holdings by no more than 1%

Haixin Food (002702) announced on March 22 that its controlling shareholder and actual controller, Teng Yongxiong, and his concerted action partner Teng Yongyan (also a director and general manager), plan to reduce holdings by no more than 5.4824 million shares (1% of the total shares after excluding shares in the company’s repurchase account) due to personal funds needs.

Montai High-tech’s specific shareholders plan to reduce holdings by no more than 3%

Montai High-tech (300876) announced on March 22 that specific shareholders Guo Hongjiang and Guo Lina (holding 14.29%) plan to reduce holdings by no more than 3.2461 million shares (3% of the total shares after excluding shares in the company’s repurchase account) via centralized bidding or block trades.

Nenghui Technology shareholders plan to reduce holdings by no more than 1.56%

Nenghui Technology (301046) announced on March 22 that shareholder and director Wen Pengfei, holding 5.22%, plans to reduce no more than 1.6862 million shares (1% of total shares) via centralized bidding or block trades. Shareholder and director Zhang Jianding, holding 2.23%, plans to reduce no more than 941,600 shares (0.56%). The total planned reduction does not exceed 1.56% of the company’s total shares.

Dali Kaipu’s deputy general manager plans to reduce holdings by no more than 0.31%

Dali Kaipu (301566) announced on March 22 that deputy general manager Qi Yongyi plans to reduce no more than 1,244,500 shares (0.31% of total shares) via centralized bidding.

Jinming Precision Machinery’s shareholders plan to reduce holdings by no more than 3%

Jinming Precision Machinery (300281) announced on March 22 that shareholder Ma Zhenxin, holding 16.85%, and his concerted action partners Ma Jiazhen (director and general manager, holding 4.4%) and Yu Suqin (holding 2.43%) plan to reduce no more than 12.5676 million shares, representing up to 3% of the company’s total shares.