截至2025年12月31日，公司未减持已回购股份。 二、相关风险提示 1、本次减持公司已回购股份计划实施存在不确定风险，公司将根据市场情况、 公司股价等具体情形决定继续实施对应股份减持计划，对应减持计划存在减持时间、 数量、价格的不确定性。 2、本次减持部分已回购股份事项符合《深圳证券交易所上市公司自律监管指引 第9号——回购股份》等相关规定。在按照减持计划减持股份期间，公司将持续关注 证券代码：002658 证券简称：雪迪龙 公告号：2026-001 北京雪迪龙科技股份有限公司 关于回购股份集中竞价减持进展的公告 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。 北京雪迪龙科技股份有限公司（以下简称"公司"）于2025年12月24日召开第 五届董事会第二十七次会议，审议通过了《关于回购股份集中竞价减持计划的议案》， 根据公司于2024年2月7日披露的《关于回购公司股份方案的公告》（公告号：2024-006） 和《回购报告书》（公告号：2024-007）中的回购股份用途约定，同意公司以集中 竞价交易方式减持剩余已回购股份，拟减持数量不超过4,885,645股，即 ...

Core Viewpoint - The company is focusing on domestic substitution opportunities in high-end scientific instruments, leveraging its core technologies in spectroscopy, chromatography, mass spectrometry, and sensor technology to expand its market presence [1]. Group 1: Domestic Substitution Opportunities - The company has developed various commercial products based on five core technology platforms, which are widely applied in environmental monitoring, industrial process analysis, and scientific instruments [1]. - There is significant potential for domestic substitution in high-end scientific instruments, as the current domestic production rate remains low, with over 75% of large scientific instruments valued over 500,000 yuan being imported as of the end of 2023 [1]. Group 2: Progress and Future Outlook - The company has accelerated its domestic production layout in the high-end scientific instrument sector, having officially launched a domestic production project for time-of-flight secondary ion mass spectrometry in September 2023, marking a critical phase in its domestic mass spectrometry instrument development [1].

Group 1 - The core viewpoint of the news is that Xuedilong's stock has experienced fluctuations, with a current price of 8.71 yuan per share and a market capitalization of 5.537 billion yuan, while the company has shown a year-to-date stock price increase of 41.53% [1] - As of September 30, the number of shareholders for Xuedilong increased by 39.39% to 49,500, while the average circulating shares per person decreased by 28.26% to 7,244 shares [2] - In the first nine months of 2025, Xuedilong achieved operating revenue of 888 million yuan, representing a year-on-year growth of 6.34%, and a net profit attributable to shareholders of 115 million yuan, reflecting a significant increase of 52.10% [2] Group 2 - Xuedilong's main business segments include ecological environment monitoring systems (78.96% of revenue), industrial process analysis systems (14.03%), and other services (7.01%) [1] - The company has cumulatively distributed dividends of 1.316 billion yuan since its A-share listing, with 589 million yuan distributed over the past three years [3] - Xuedilong operates within the environmental protection industry, specifically in sectors such as solid waste treatment, energy conservation and environmental protection, carbon neutrality, and hydrogen energy [2]

Group 1 - Guangqi Technology's controlling shareholder proposed a share buyback of 50 million to 100 million yuan for employee stock ownership plans or equity incentives [1] - Xingyuan Zhuomai received a supplier designation from a domestic electric vehicle manufacturer to develop and supply reducer shell components, with expected sales of approximately 575 million yuan over four years from 2027 to 2030 [2] - Weigao Bio's application for clinical trials of subcutaneous human immunoglobulin has been accepted by the National Medical Products Administration, targeting primary immunodeficiency diseases [3] Group 2 - Hongda Electronics disclosed uncertainty regarding the IPO progress of its associate Jiangsu Zhanxin, in which it holds a 13.79% stake [4] - Kangchen Pharmaceutical received FDA approval to conduct clinical trials for its KC1086 project, aimed at treating advanced recurrent or metastatic solid tumors [5] - Kweichow Moutai adjusted its share buyback price ceiling to 1863.67 yuan per share, effective from December 19, 2025 [6] Group 3 - Mousse Co. announced that its controlling shareholder and actual controllers committed not to reduce their holdings within one year [7] - Tongxingbao's subsidiary signed a business contract worth 43.166 million yuan for a cloud expansion project [8] - Kaifa Electric announced plans for three shareholders to collectively reduce their holdings by 0.6999% [9] Group 4 - Longpan Technology plans to increase the production capacity of lithium iron phosphate cathode materials from 62,500 tons per year to 100,000 tons per year [10] - Zhuhai Guanyu announced plans for two shareholders to reduce their holdings by up to 3% [11] - Jiaheng Home Textiles is planning a change in control, leading to a temporary suspension of its stock [12] Group 5 - Kehua Bio's subsidiary received a medical device registration certificate for a gene polymorphism detection kit [13] - Saitex New Materials' actual controller plans to reduce holdings by up to 3% [14] - Sanhui Electric announced a shareholder's plan to reduce holdings by up to 2% [15] Group 6 - Binhua Co. plans to establish a venture capital fund with a total scale of 400 million yuan, focusing on strategic emerging industries [16] - Jindun Co. announced plans for two shareholders to reduce their holdings by up to 4% [17] - Hengdian East Magnetic's controlling shareholder plans to reduce holdings by up to 1% [18][19] Group 7 - Luxin Investment's controlling shareholder plans to reduce holdings by up to 1% [20] - Huakang Clean announced a joint bid for a hospital procurement project worth 157 million yuan [21] - Xuedilong plans to reduce its repurchased shares by up to 488,560 shares [22] Group 8 - Enhua Pharmaceutical's subsidiary signed an exclusive commercial cooperation agreement for three long-acting antipsychotic products [23] - Aier Eye Hospital plans to acquire partial equity in 39 institutions for a total of 963 million yuan [24] - Gaozheng Mining plans to acquire 100% equity of Overseas Explosives for 510 million yuan [25] Group 9 - Donghong Co. plans to repurchase shares worth 30 million to 60 million yuan for employee stock ownership plans [26] - Bear Electric's controlling shareholder plans to reduce holdings by up to 0.64% [27] - *ST Zhengping announced the initiation of pre-restructuring by the Xining Intermediate Court [28][29] Group 10 - Caesar Travel's shareholder plans to reduce holdings by up to 3% [30] - Lianchuang Electronics announced a change in controlling shareholder to Jiangxi State-owned Assets Supervision and Administration Commission [31] - Beixin Road and Bridge plans to transfer 5.33% equity in Henan Yuhang for 243 million yuan [32] Group 11 - Fenglong Co. is planning a change in control, with stock resuming trading [33]

Summary of Key Points Core Viewpoint - On December 24, several A-share listed companies disclosed their shareholding changes, with notable increases in holdings from companies like Guizhou Moutai and others, while 18 companies reported reductions in their shareholdings [1][3]. Group 1: Shareholding Increases - **Biological Shares**: Major shareholder obtained a commitment letter for a special loan to increase holdings [2]. - **Marter Shares**: The controlling shareholder and chairman Liu Aisen plans to increase holdings by no less than 100 million yuan [2]. - **Guizhou Moutai**: Plans to repurchase shares through centralized bidding [2]. - **Donghong Shares**: Plans to repurchase shares worth between 30 million to 60 million yuan [2]. Group 2: Shareholding Reductions - **Kaifa Electric**: Shareholders Zhao Le, Wen Guowang, and Zhang Xiaoyi plan to reduce holdings by no more than 0.70% [2]. - **Zhuhai Guanyu**: Shareholders Ningbo Huijin and Zhuhai Lengquan plan to reduce holdings by no more than 3% [2]. - **Lite New Materials**: Controlling shareholder Wang Kunming plans to reduce holdings by no more than 3% [2]. - **Sanhui Electric**: Shareholder Wu Baofu plans to reduce holdings by no more than 2% [2]. - **Xuedilong**: Plans to reduce no more than 4.8856 million shares of repurchased stock [2]. - **Jindun Shares**: Shareholder Gaoxin Investment plans to reduce holdings by no more than 1%, and Founder Securities plans to reduce by no more than 3% [2]. - **Tianhai Defense**: China Great Wall Asset reduced holdings by 3.0278 million shares from December 22 to December 23 [2]. - **Zhangyuan Tungsten**: Controlling shareholder's reduction plan has been completed [2]. - **Chaojie Shares**: Controlling shareholder reduced 974,400 shares from December 8 to December 24 [2]. - **Hengdian East Magnetic**: Controlling shareholder plans to reduce holdings by no more than 1% [2]. - **Luxin Investment**: Controlling shareholder Luxin Group plans to reduce holdings by no more than 1% [2]. - **Sunglow Power**: Four shareholders collectively reduced 423,700 shares [2]. - **He富中国**: Controlling shareholder He富 Hong Kong reduced 9,000 shares on December 24 [2]. - **Tuojing Technology**: The largest shareholder, the National Fund, reduced 1.83 million shares from December 17 to December 24 [2]. - **Little Bear Electric**: Shareholder Long Shaohong plans to reduce holdings by no more than 0.64% [2]. - **Chao Xun Communication**: Shanghai Jiuyi Investment Management reduced holdings to 4.99% [2]. - **Caesar Travel**: The third largest shareholder, Jingu Trust, plans to reduce holdings by no more than 3% [2].

Core Viewpoint - The company Snowdelong (002658) announced on December 24 that it plans to reduce its holdings by selling shares through a centralized bidding trading method, with a maximum reduction of 4.8856 million shares, accounting for no more than 0.77% of the company's total share capital [1] Group 1 - The company intends to utilize a centralized bidding trading method for the share reduction [1] - The maximum number of shares to be reduced is 4.8856 million [1] - The reduction represents up to 0.77% of the company's total share capital [1]

格隆汇12月24日丨雪迪龙(002658.SZ)公布，根据公司于2024年2月7日披露的《关于回购公司股份方案 的公告》（公告号：2024-006）和《回购报告书》（公告号：2024-007）中的回购股份用途约定，同意 公司以集中竞价交易方式减持剩余已回购股份，拟减持数量不超过4,885,645股，即不超过公司总股本 0.77%，减持期间为自本公告发布之日起15个交易日之后三个月内（即2026年1月20日至2026年4月20 日，根据中国证监会及深圳证券交易所相关规定禁止减持的期间除外，下同），减持价格根据减持时的 二级市场价格确定。 ...

一、董事会会议召开情况 证券代码：002658 证券简称：雪迪龙 公告号：2025-059 北京雪迪龙科技股份有限公司 第五届董事会第二十七次决议公告 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。 三、备查文件 经与会董事签字并加盖董事会印章的董事会决议。 1 北京雪迪龙科技股份有限公司（以下简称"公司"）于2025年12月24日（星期 三）下午15:00，以通讯会议方式召开第五届董事会第二十七次会议，本次会议由公 司董事长敖小强先生主持。召开本次会议的通知于2025年12月24日以通讯方式送达 全体董事。本次董事会会议应到董事7名，实到董事7名。公司有关高级管理人员列 席了会议。会议的召集及召开程序符合《中华人民共和国公司法》及《公司章程》 的规定。 二、董事会会议审议情况 与会董事经过认真讨论，审议并通过以下议案： （一）审议通过《关于回购股份集中竞价减持计划的议案》； 根据公司于2024年2月7日披露的《关于回购公司股份方案的公告》（公告号： 2024-006）和《回购报告书》（公告号：2024-007）中的回购股份用途约定，同意 公司以集中竞价交易方 ...

证券代码：002658 证券简称：雪迪龙 公告号：2025-060 公司于2025年8月4日召开第五届董事会第二十次会议，审议通过了《关于回购 股份集中竞价减持计划的议案》，根据公司于2024年2月7日披露的《关于回购公司 股份方案的公告》（公告号：2024-006）和《回购报告书》（公告号：2024-007） 中的回购股份用途约定，同意公司以集中竞价交易方式减持部分已回购股份，拟减 持数量不超过6,357,609股，即不超过公司总股本1%，减持期间为自减持计划公告发 布之日起15个交易日之后三个月内（即2025年8月27日至2025年11月27日，根据中国 证监会及深圳证券交易所相关规定禁止减持的期间除外），减持价格根据减持时的 二级市场价格确定。 北京雪迪龙科技股份有限公司 关于回购股份集中竞价减持计划的公告 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。 北京雪迪龙科技股份有限公司（以下简称"公司"）于2025年12月24日召开第 五届董事会第二十七次会议，审议通过了《关于回购股份集中竞价减持计划的议案》， 根据公司于2024年2月7日披露的《关于回购公 ...

证券日报网讯 12月23日晚间，雪迪龙发布公告称，因北京德皓国际会计师事务所内部项目安排调整， 原签字注册会计师周志变更为王芳，变更后公司2025年度财务报告审计和内部控制审计项目合伙人为刘 晶静，签字注册会计师为刘晶静、王芳，质量控制复核人为殷宪锋。 （编辑 袁冠琳） ...