（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。 ...

Core Viewpoint - Qinglong Pipeline Group Co., Ltd. has been awarded a contract worth 146 million yuan for a heating pipeline project, which is expected to impact the company's performance in 2026-2027 [2]. Group 1: Company Overview - Qinglong Pipeline focuses on the research, production, and sales of high-quality water supply pipes and related products, providing comprehensive solutions in the water-saving field [2]. - The company is the only large-scale manufacturer in China that covers concrete pipes, plastic pipes, and steel pipes, meeting diverse customer needs for mainstream supply and drainage pipes, gas pipes, heating pipes, and water-saving irrigation products [2]. Group 2: Project Details - The contract awarded to Qinglong Pipeline's subsidiary, Pengyang Qinglong Pipeline Technology Co., Ltd., is for the first section of the heating pipeline project from Wangwa Power Plant to the county town [2]. - The project amount represents 5.19% of Qinglong Pipeline's audited total revenue for the fiscal year 2024, indicating a significant contribution to the company's financials [2].

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]