Market Overview - A total of 145 stocks hit the daily limit up in the A-share market, with 100 stocks remaining after excluding 45 ST stocks, resulting in a limit-up rate of 84.3% [1] Limit-Up Stocks - The highest limit-up order volume was recorded by Zhongchao Holdings with 678,600 hands, followed by Yanshan Technology, Quanzhu Co., and Huasheng Tiancai with 556,400 hands, 494,900 hands, and 296,600 hands respectively [2] - Notable stocks with consecutive limit-ups include Yuzhong Sanxia A with 5 consecutive days, and several others like Quanzhu Co. and Jingjin Electric-UW with 3 consecutive days [2] Key Concepts Huawei HarmonyOS - Stocks benefiting from the Huawei HarmonyOS concept include Jiulian Technology, Dahua Intelligent, Tianyuan Dike, and Nantian Information [3] - Jiulian Technology has diversified its business in the HarmonyOS field across various sectors such as healthcare, agriculture, smart cities, and finance [3] - Dahua Intelligent has adapted its applications for domestic operating systems and has a strong collaboration with Huawei in ICT and cloud services [3] - Tianyuan Dike has developed applications compatible with HarmonyOS for Huawei's video services [3] Computing Power - Stocks related to computing power include Huasheng Tiancai, Dawi Technology, Hainan Huatie, and Changshan Beiming [4] - Huasheng Tiancai offers solutions in the digital new infrastructure sector, including a new generation of AI computing power centers [4] - Dawi Technology focuses on data center construction and operations in North China, providing services such as cabinet leasing and cloud services [4] - Hainan Huatie is investing in intelligent computing services and aims to integrate data, models, and computing power to embrace the AI industry chain [4] Rare Earth Permanent Magnet - Stocks in the rare earth permanent magnet sector include Shenghe Resources, Guangsheng Nonferrous, and Tianhe Magnetic Materials [5] - Shenghe Resources focuses on rare earth and zirconium-titanium resources, establishing a comprehensive industrial chain [6] - Guangsheng Nonferrous has a mid-heavy rare earth mining target of 2,700 tons for 2024, achieving over 70% completion [7] - Tianhe Magnetic Materials is a leading provider of high-performance rare earth permanent magnet materials, applicable in various industries including new energy vehicles and aerospace [7] Institutional Activity - Qingdao Jinwang saw a net institutional buy of over 150 million yuan, with stocks like Changshan Beiming and Hongbo Co. also appearing on the leaderboard [8] - The top three net buying stocks by institutions included Yanshan Technology, Tianyuan Dike, and Nanshan Zhishang, with net purchases of 214 million yuan, 170 million yuan, and 157 million yuan respectively [9]

登录新浪财经APP 搜索【信披】查看更多考评等级 证券代码：002053 证券简称：云南能投 公告编号：2025-065 关于全资子公司取得专利证书的公告 本公司及董事会全体成员保证信息披露内容的真实、准确、完整，没有虚假记载、误导性陈述或重大遗 漏。 云南能源投资股份有限公司 云南能源投资股份有限公司（以下简称"公司"）全资子公司会泽云能投新能源开发有限公司、红河云能 投新能源开发有限公司及云南省盐业有限公司近日取得国家知识产权局颁发的4项《实用新型专利证 书》和2项《外观设计专利证书》，具体情况如下： ■ 上述专利的获得不会对公司本年度财务状况、经营成果等产生重大影响，但有利于公司进一步完善知识 产权保护体系，发挥自主知识产权优势，促进技术创新，增强公司综合竞争力。敬请广大投资者谨慎决 策，注意投资风险。 特此公告。 关于向参股公司所提供的委托贷款逾期的进展公告 云南能源投资股份有限公司董事会 本公司及董事会全体成员保证信息披露内容的真实、准确、完整，没有虚假记载、误导性陈述或重大遗 漏。 2025年4月30日 重要提示： 证券代码：002053证券简称：云南能投公告编号：2025-066 云南能源投资股 ...