（文章来源：证券日报） 证券日报网讯 2月25日，青龙管业在互动平台回答投资者提问时表示，截至2026年2月13日，公司股东 户数为37381户。 ...

公告显示，上述中标项目的中标金额占青龙管业2024年度经审计营业总收入的5.19%，该项目的中标预 计将会对公司2026年至2027年业绩产生一定影响。 （文章来源：证券日报） 青龙管业专注于高品质输水管道及相关产品的研发、生产、销售，并提供输节水领域的整体解决方案。 公司是目前国内唯一混凝土管道、塑料管道和钢管全覆盖的规模化生产企业，能全方位满足客户对主流 供排水管道、燃气管道、供热管道及节水灌溉产品和节水灌溉整体方案提供的需求。 本报讯青龙管业集团股份有限公司（以下简称"青龙管业"）近日发布公告称，公司控股孙公司彭阳县青 龙管道科技有限公司收到彭阳县集中供热有限责任公司签发的《中标通知书》，公司被确认为彭阳县王 洼电厂余热至县城供热管网项目一标段的中标单位，中标金额1.46亿元。 ...

北京商报讯（记者 翟枫瑞）2月24日，装修建材板块增长，以18438.61点收盘，涨幅为2.02%。在板块 带动下，多只装修建材股股价实现增长。顶固集创以34.39元/股收盘，涨幅为19.99%，领涨装修建材 股。扬子新材以4.57元/股收盘，涨幅为19.99%，涨幅位列装修建材股第二。青龙管业以13.70元/股收 盘，涨幅为10.04%，涨幅位列装修建材股第三。除此之外，雅博股份以2.24元/股收盘，跌幅为5.08%， 领跌装修建材股。*ST松发以95.10元/股收盘，跌幅为5.00%，跌幅位列装修建材股第二。万里石以 44.85元/股收盘，跌幅为4.78%，跌幅位列装修建材股第三。 东吴证券在研报中表示，消费方面，二手房交易量自年初以来持续略超预期，显示出企稳迹象。上海等 地试点存量房收储，有利于中长期楼市企稳。短期26年上半年地产链业绩仍较为平淡，好的是大部分公 司毛利率、费用率、利润率均将有所改善。25年上半年过度竞争大部分产品达到行业性亏损之后，行业 出清，价格逐渐修复，此轮修复高度有望比合理利润率更高。 ...

Core Viewpoint - The company has appointed new partners and auditors for the 2025 financial year, ensuring a smooth transition without adverse effects on the audit process [1][5]. Group 1: Appointment of Auditors - The company has renewed its contract with Xinyong Zhonghe Accounting Firm for the 2025 audit [1]. - The new signing project partner is Ms. Qi Kexin, replacing Mr. Si Jianjun due to work adjustments [1][2]. - Ms. Zhu Yinling has been appointed as the signing registered accountant, taking over from Ms. Qi Kexin [1][2]. Group 2: Background of New Auditors - Ms. Qi Kexin has been a certified public accountant since 2012 and has been involved in auditing listed companies since 2011, providing services to the company since 2023 [2]. - Ms. Zhu Yinling has been a certified public accountant since 2015 and has been engaged in auditing listed companies since 2008, starting her service for the company in 2025 [2]. Group 3: Integrity and Independence - Both new auditors have no criminal penalties or administrative sanctions in the past three years [3]. - There are no violations of independence requirements as per the Code of Ethics for Chinese Certified Public Accountants [4]. Group 4: Impact on the Company - The transition process for the new auditors has been orderly, and it will not negatively impact the company's 2025 financial report audit and internal control audit [5].

Group 1: Key Highlights - Zhangyue Technology (掌阅科技) expects AI short drama business revenue to not exceed 1% of its main business revenue in 2025 [1][2] - Actual controller of Jialinjie (嘉麟杰), Li Zhaoting, has been subjected to compulsory measures [1][2] - Jindan Technology (金丹科技) increases investment in a project for an annual production of 75,000 tons of polylactic acid biodegradable materials [1][2] Group 2: Contract Awards - Qinglong Pipe Industry (青龙管业) wins the bid for the first section of the heat supply pipeline project from Pengyang County Wangwa Power Plant to the county [1][2] - Gaode Infrared (高德红外) signs a contract for a complete equipment system [1][2] - ST Xintong (ST信通) signs a server procurement contract worth approximately 400 million yuan [1][2] Group 3: Financial Performance - Hanzhong Precision Machinery (汉钟精机) reports a net profit of 470 million yuan for 2025, a decrease of 45.54% year-on-year [1][2] - Fudan Microelectronics (复旦微电) anticipates a net profit of approximately 232 million yuan for 2025, down about 59.42% year-on-year [1][2] - Ruilian New Materials (瑞联新材) expects a net profit of 311 million yuan for 2025, an increase of 23.48% year-on-year [1][2] Group 4: Equity Transactions - Gongjin Co. (共进股份) plans to transfer 21.8340% equity of Chip Material Technology to Xinchang Technology [1][2] - Shengquan Group (圣泉集团) intends to acquire 13.50% equity of Shangbo Pharmaceutical for 4.29 million USD [1][2] - Changjiang Communication (长江通信) plans to exit 4.66% equity of Hangzhou Chenxiao through a targeted capital reduction [1][2] Group 5: Share Buybacks - Hualing Steel (华菱钢铁) has repurchased 0.8109% of its shares [1][2] - SanNuo Bio (三诺生物) has completed a share buyback plan, repurchasing 2.81% of its shares [1][2] Group 6: Shareholding Changes - Chunqiu Electronics (春秋电子) plans to reduce holdings by no more than 2% [1][2] - Guanghuan New Network (光环新网) intends to reduce holdings by no more than 3% [1][2] - ST Yigou (ST易购) plans to reduce holdings by no more than 2.5% [1][2] - Changjiang Communication (长江通信) plans to sell no more than 1 million shares of Changfei Optical Fiber [1][2] Group 7: Other News - Yingjixin (英集芯) is under investigation by the China Securities Regulatory Commission for suspected information disclosure violations [1][2] - Tianfeng Securities (天风证券) has received a notice of investigation from the China Securities Regulatory Commission [1][2] - Chuangshi Technology (创识科技) reports that its controlling shareholder has received a criminal judgment [1][2]

Group 1 - RuiLian New Materials reported a total operating revenue of 1.677 billion yuan for 2025, an increase of 14.95% year-on-year, with a net profit of 311 million yuan, up 23.48% year-on-year [1] - China Shenhua's subsidiary, Guoneng Qingyuan Power, successfully put its fourth generator unit into commercial operation, expected to provide approximately 20 billion kWh of clean energy annually [2] - Qijiang Airlines announced a 6.04% year-on-year decline in passenger turnover for January 2026, with a passenger load factor of 84.03%, up 1.61% year-on-year [3] Group 2 - QiZheng Tibetan Medicine reported a total operating revenue of 2.416 billion yuan for 2025, a year-on-year increase of 3.34%, with a net profit of 646 million yuan, up 10.98% year-on-year [5] - QiaoYin Co. announced the termination of its artificial intelligence industry headquarters project due to changes in investment cooperation conditions [6] - New Point Software plans to use 90.81 million yuan of surplus raised funds for new projects, including AI-driven software development [7] Group 3 - High Measurement Co. announced plans for major shareholders and executives to reduce their holdings by up to 3.19% of the company's shares [8] - SAIC Group's subsidiary plans to establish a private equity fund with an initial scale of 2.5 billion yuan, focusing on solid-state batteries and chip localization [9] - Tianqi Lithium announced the resignation of its deputy general manager due to personal career planning [10] Group 4 - ZhongKong Technology reported a total operating revenue of 8.051 billion yuan for 2025, a decrease of 11.90%, with a net profit of 450 million yuan, down 59.70% year-on-year [11] - Spring Airlines reported a 6.28% year-on-year increase in total passenger volume for January 2026, with a total available ton-kilometers of 57,008.37 [12] - Qifan Cable's controlling shareholder reduced its stake by 3% through various trading methods [13] Group 5 - China Chemical signed contracts worth a total of 36.925 billion yuan in January 2026, with significant contracts exceeding 5 billion yuan totaling 11.371 billion yuan [19] - SaiTuo Bio received a CEP certificate for its raw material drug Betamethasone, which is used to treat allergies and autoimmune inflammation [20] - Giant Star Agriculture reported a sales revenue of 649 million yuan from commodity fat pigs in January 2026, with a sales volume of 404,400 pigs [23] Group 6 - Qinglong Pipe Industry's subsidiary won a 146 million yuan pipeline project [24] - Changshan Pharmaceutical announced that some of its products are expected to be selected for national centralized procurement [26] - Yangdian Technology completed the transfer of 12.96% of its shares through an agreement [27] Group 7 - Deepin Technology's investment fund introduced new limited partners and adjusted the capital contributions of some partners [28] - Qingyun Technology plans to pledge 25% of its shares for a loan application of up to 30 million yuan [29] - LaiMei Pharmaceutical reported a 57.20% year-on-year decline in net profit for 2025 [30] Group 8 - YouLiDe reported a 16.88% year-on-year decline in net profit for 2025, with total operating revenue of 1.221 billion yuan, up 7.99% [31] - Warner Pharmaceutical reported a net profit of 241 million yuan for 2025, an increase of 46.95% year-on-year [32] - LianRui New Materials reported a net profit of 293 million yuan for 2025, an increase of 16.42% year-on-year [33] Group 9 - HuaQin Technology expects a 24.28% year-on-year decrease in net profit for 2025, with projected revenue of 1.251 billion yuan, up 9.83% [34] - QiPai Technology's shareholder subscribed for 6.3 million shares, accounting for 5.49% of the total share capital [35] - Qilin Security's shareholders completed their planned share reductions without exceeding the original plan [36] Group 10 - Dameng Data announced the lifting of the detention of its senior vice president, allowing him to resume his duties [37] - Haiyou Engineering won a contract for the "NFPS COMP5" project worth approximately 4 billion USD, with the company's share exceeding 800 million USD [38] - Yatai Group plans to sell 20.81% of its shares in Northeast Securities, pending confirmation of financial statements [39]

证券代码：002457 证券简称：青龙管业 公告编号：2026-007 青龙管业集团股份有限公司 关于变更签字项目合伙人及签字注册会计师的公告 本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有虚假记载、误 导性陈述或重大遗漏。 青龙管业集团股份有限公司（以下简称"公司"）于 2025 年 4 月 22 日召开的第六届 董事会第十七次会议和第六届监事会第十一次会议、2025 年 5 月 14 日召开的 2024 年年度 股东会，审议通过了《关于拟续聘会计师事务所的议案》，同意续聘信永中和会计师事务 所（特殊普通合伙）（以下简称"信永中和"）为公司 2025 年度审计机构。具体详见 2025 年 4 月 24 日刊登于巨潮资讯网（www.cninfo.com.cn)、证券时报、证券日报、中国证券 报及上海证券报的《关于拟续聘会计师事务所的公告》（公告编号：2025-022）、2025 年 5 月 15 日披露的《2024 年年度股东会决议公告》（公告编号：2025-031）。 近日，公司收到信永中和出具的《关于变更青龙管业集团股份有限公司签字项目合伙 人及签字注册会计师的函》，现将有关情况公告如下： ...

Core Viewpoint - Qinglong Pipe Industry (002457.SZ) has been awarded a contract for a heating pipeline project, which is expected to contribute significantly to its revenue in 2024 [1] Group 1: Company Announcement - The company’s subsidiary, Pengyang Qinglong Pipeline Technology Co., Ltd., has received a "Notice of Winning Bid" from Pengyang Central Heating Co., Ltd. [1] - The project involves the supply of heating pipelines from Wangwa Power Plant to the county town, with a bid amount of 146 million yuan [1] - This contract represents 5.19% of the company's audited operating revenue for the fiscal year 2024 [1]

Core Viewpoint - Qinglong Pipe Industry (002457.SZ) has been awarded a contract for a heating pipeline project, which is expected to contribute significantly to its revenue in 2024 [1] Group 1: Company Announcement - The company’s subsidiary, Pengyang Qinglong Pipeline Technology Co., Ltd., has received a "Notice of Winning Bid" from Pengyang Central Heating Co., Ltd. [1] - The company has been confirmed as the winning bidder for the first section of the heating pipeline project from Wangwa Power Plant to the county [1] Group 2: Financial Impact - The total bid amount for the project is 146 million yuan, which represents 5.19% of the company's audited operating revenue for the year 2024 [1]

Core Viewpoint - Qinglong Pipe Industry (002457.SZ) has been awarded a contract for a heating pipeline project, which is expected to contribute significantly to its revenue in 2024 [1] Group 1: Company Announcement - The company’s subsidiary, Pengyang Qinglong Pipeline Technology Co., Ltd., has received a "Notice of Winning Bid" from Pengyang Central Heating Co., Ltd. [1] - The project involves the supply of heat from the Wangwa Power Plant to the county's heating network, specifically for the first segment of the project [1] Group 2: Financial Impact - The total bid amount for the project is 146 million yuan, which represents 5.19% of the company's audited operating revenue for the year 2024 [1]