Group 1 - Hengbang Co., Ltd. plans to establish a joint venture with Huasheng Development with a registered capital of 10 million yuan, where Hengbang will contribute 8 million yuan (80%) and Huasheng will contribute 2 million yuan (20%) [1] - Hunan Gold's subsidiary Anhua Zhazi Creek Smelting Plant will undergo temporary maintenance starting from the end of June 2025, expected to last no more than 30 days [2] - Defu Technology's subsidiary signed supply agreements for lithium battery copper foil products with two leading global companies, with contract durations of 3 years and 5 years respectively [3] Group 2 - Binjiang Group won the rights to two residential land parcels for a total price of 4.368 billion yuan [5] - Zhong'an Technology announced the resignation of its executive vice president and board secretary due to personal reasons [7] - Changqing Technology's project for special polymer materials and electronic materials has officially commenced production, adding a capacity of 120,500 tons per year [10] Group 3 - Gansu Energy received approval from the China Securities Regulatory Commission to publicly issue bonds totaling up to 2 billion yuan [10] - Shuoshi Biology obtained a medical device registration certificate for an in vitro diagnostic reagent, valid until June 2030 [12] - Yawen Co., Ltd. plans to issue shares to specific investors, with the application accepted by the Shenzhen Stock Exchange [13] Group 4 - Guoyao Modern's subsidiary received approval for the listing of a raw material drug, which is a selective anticholinergic agent [16] - Inner Mongolia First Machinery's subsidiary signed a railway freight car procurement contract worth 130 million yuan [18] - Xining Special Steel plans to raise up to 1 billion yuan through a private placement to its controlling shareholder [39] Group 5 - Huadong Medicine's subsidiary received approval for a clinical trial of a new injectable drug targeting advanced solid tumors [29] - Warner Pharmaceutical's compound potassium hydrogen phosphate injection passed the consistency evaluation for generic drugs [30] - North Special Technology plans to raise up to 300 million yuan through a private placement for a production base project in Thailand [30] Group 6 - Xiangyang Technology is the first candidate for a 533 million yuan Airbus project [45] - Haishun New Materials intends to acquire 100% of Guangdong Zhengyi Packaging [46] - Jida Zhengyuan's shareholder plans to reduce their stake by up to 0.73% due to personal financial needs [47]

Group 1 - Lingnan Holdings plans to publicly transfer 3.92% equity of Guangzhou World Wonder at a base price of 23.6576 million yuan, focusing on core business development [1] - Guangkang Biochemical's chlorantraniliprole product has a designed capacity of 10 tons/year but has not yet been produced, with expected minor contribution to overall performance [1] - Palin Bio's controlling shareholder intends to transfer 21.03% of shares to China National Biological, changing the controlling shareholder and actual controller [1][2] Group 2 - Haimer Technology is planning a change of control, leading to a temporary stock suspension for up to two trading days [1] - *ST Zhongdi's stock will be suspended for one day and will resume trading with a change in risk warning status [1] - Jiahua Intelligent's shareholder plans to reduce holdings by up to 1% of total shares due to personal funding needs [5] Group 3 - Bosi Software's director plans to reduce holdings by up to 0.22% of total shares for personal funding needs [6] - Hanjia Design's director intends to reduce holdings by up to 35.6 million shares, representing 0.1577% of total shares [7] - Nanfang Energy plans to invest approximately 51.9788 million yuan in distributed photovoltaic power stations, expecting related transaction amounts to reach 99.3685 million yuan over 25 years [8] Group 4 - Tian Tie Technology's subsidiary temporarily halted production due to steam supply issues, expected to last about one month [9] - Haiguang Information plans a share swap to absorb and merge with Zhongke Shuguang, with stock resuming trading [11] - Tianyima is planning to acquire controlling interest in Xingyun Kaiwu, leading to a stock suspension for up to 10 trading days [12] Group 5 - Xinhua Group's chairman resigned, and Wang Gengyu was elected as the new chairman [13] - Zongyi Co. plans to invest 220 million yuan in Jilai Microelectronics, aiming for a controlling stake post-investment [14] - Zhongying Electronics' controlling shareholder will change to Zhinen Industrial Electronics, with stock resuming trading [16] Group 6 - Huayang Lianzhong plans to jointly invest in a new company with its controlling shareholder, with a registered capital of 402 million yuan [19] - Gaomeng New Materials' chairman and executives plan to reduce holdings by a total of 0.41% of total shares [20] - Beifang Changlong intends to acquire 51% of Henan Zhongsheng for approximately 102 million yuan, expanding its business scope [21]

Group 1 - Northern Long Dragon is planning to acquire the controlling stake of Henan Zhongsheng and raise matching funds, leading to a stock suspension [1] - The company specializes in the research, design, production, and sales of non-metal composite materials for military vehicle equipment [1] - Koyuan Pharmaceutical's major shareholder plans to reduce their stake by up to 3%, amounting to 324.87 million shares [2] Group 2 - Jiaste Technology's shareholder intends to reduce their stake by up to 3%, totaling 1,428.75 million shares [2] - Chengdi Xiangjiang's subsidiary has won a bid for a data center project with China Mobile, valued at 492 million yuan [3] - Zhongchao Holdings' actual controller sold 223 million shares during a period of stock price fluctuation, representing 0.16% of total shares [4] Group 3 - ST Yushun's stock will resume trading after confirming no significant changes in its operational environment [6] - Xing Shuai Er's shareholder plans to reduce their stake by up to 0.37%, equating to 130 million shares [7] - Weiguang Co. intends to reduce its stake by up to 1.32%, totaling 300 million shares [8] Group 4 - Zhongsheng Pharmaceutical's subsidiary has received ethical approval for two Phase III clinical trials for its innovative peptide drug RAY1225 [9][10] - Nongxin Technology's major shareholder plans to reduce their stake by up to 1.35%, amounting to 135 million shares [12] - Mintai Aluminum has signed a strategic cooperation agreement with Penghui Energy for collaboration in battery technology [14] Group 5 - Youyan Powder's controlling shareholder plans to reduce their stake by up to 1%, totaling 103 million shares [16] - Runjian Co. has been shortlisted for a procurement project with China Mobile, valued at 374 million yuan [17] - Bangyan Technology has terminated its plan to issue shares and raise funds for asset acquisition [18] Group 6 - Xianggang Technology's controlling shareholder intends to reduce their stake by up to 3%, equating to 648.42 million shares [19] - Zhongke Shuguang is undergoing a stock suspension due to a planned share swap merger with Haiguang Information [20]

Group 1 - China State Construction signed new contracts totaling 1.52 trillion yuan from January to April, representing a year-on-year increase of 2.8% [1] - Yongpu Medical's subsidiary obtained a medical device business license valid until May 7, 2030, allowing it to engage in medical device retail and wholesale [1] - Ningbo Maritime received a government subsidy of 4.42 million yuan, which will impact its net profit for the fiscal year 2025 [1] Group 2 - Mingpu Optoelectronics obtained a patent for a magnetic powder core and its preparation method, enhancing its capabilities in magnetic materials technology [1] - Digital Zhitong plans to establish a wholly-owned subsidiary in Beijing with a registered capital of 5 million yuan [1] - Zhongmin Energy's shareholder plans to reduce its stake by up to 0.28% of the company's total shares [1][6] Group 3 - Tunnel Holdings' controlling shareholder intends to increase its stake in the company by investing between 250 million to 500 million yuan [1] - China Telecom appointed Liu Guiqing as the new President and COO [1] - Datang Power completed the issuance of 3 billion yuan in medium-term notes, with proceeds aimed at repaying debt and supplementing working capital [1] Group 4 - *ST Weihai won a bid for a flood control project worth 182 million yuan, accounting for 7.35% of its audited revenue for 2024 [1] - Huijin Tong announced a cash dividend of 0.0868 yuan per share, totaling 29.44 million yuan [1] - Xinkai Energy's shareholders plan to reduce their holdings by a combined total of 4% of the company's shares [1][39] Group 5 - Xinhuan Group's subsidiary won a 1.02 billion yuan nuclear power project contract [1] - Southern Airlines reported a 12.14% year-on-year increase in passenger turnover for April [1] - Xinjiang Torch plans to acquire 100% equity of Yushan Litai for 125 million yuan [1]

Group 1 - Yilida plans to repurchase shares worth 30 to 50 million yuan for employee stock ownership plans, with a maximum price of 6.5 yuan per share [1] - Yinglian shares two major shareholders plan to reduce their holdings by up to 5% [1][2] - Zhongbing Hongjian reports a net loss of 327 million yuan for 2024, with a revenue decline of 25.29% [2][3] Group 2 - Zhongke Electric reports a net profit increase of 626.56% for 2024, with a revenue growth of 13.72% [3][4] - Yong'an Futures reports a net profit decline of 21.07% for 2024, with a revenue decrease of 8.76% [5][6] - Yongjie New Materials reports a net profit increase of 34.28% for 2024, with a revenue growth of 24.71% [7][8] Group 3 - Xibu Securities reports a net profit increase of 20.38% for 2024, despite a revenue decline of 2.64% [9][10] - Jinying Heavy Industry reports a net profit decline of 35.54% for 2024, with a slight revenue increase of 1.13% [10][11] - Haineng Industry reports a net profit decline of 40.45% for 2024, despite a revenue growth of 16.26% [12][13] Group 4 - Penghui Energy reports a net loss of 252 million yuan for 2024, with a revenue increase of 14.83% [14][15] - Weiming Pharmaceutical reports a net loss of 137 million yuan for 2024, with a revenue decline of 16.14% [16][17] - Huachang Technology reports a net profit increase of 184.26% for 2024, with a revenue growth of 6.74% [18][19] Group 5 - Ancar Detection reports a net loss of 213 million yuan for 2024, with a revenue decline of 3.05% [20][21] - Saiwei Intelligent reports a net loss of 507 million yuan for 2024, with a significant revenue decline of 68.03% [22][23] - Qinglong Pipe Industry reports a net profit increase of 976.43% for 2024, with a revenue growth of 36.71% [24][25] Group 6 - Huayin Electric reports a net loss of 113 million yuan for 2024, with a revenue decline of 16.00% [26][27] - Zhongqi New Materials reports a net profit decline of 61.59% for 2024, with a revenue decrease of 22.88% [28][29] - Guangzheng Eye Hospital reports a net loss of 175 million yuan for 2024, with a revenue decline of 16.94% [30][31] Group 7 - Zhenlan Instrument reports a net profit increase of 2.16% for 2024, with a revenue growth of 11.63% [32][33] - Zaiseng Technology reports a net profit increase of 137.99% for 2024, despite a revenue decline of 10.87% [34][35] - Haitai High-tech reports a net profit increase of 51.34% for 2024, with a revenue growth of 25.26% [36][37] Group 8 - Runze Technology reports a net profit increase of 1.62% for 2024, with a revenue growth of 0.32% [38][39]