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]