有研粉末新材料股份有限公司 2025年第四次临时股东大会决议公告 本公司董事会及全体董事保证公告内容不存在任何虚假记载、误导性陈述或 者重大遗漏，并对其内容的真实性、准确性和完整性依法承担法律责任。 重要内容提示： 本次会议是否有被否决议案：无 证券代码：688456 证券简称：有研粉材 公告编号：2025-044 一、 会议召开和出席情况 （三） 出席会议的普通股股东、特别表决权股东、恢复表决权的优先股股东及 其持有表决权数量的情况： | 1、出席会议的股东和代理人人数 | 51 | | --- | --- | | 普通股股东人数 | 51 | | 2、出席会议的股东所持有的表决权数量 | 50,049,205 | | 普通股股东所持有表决权数量 | 50,049,205 | | 3、出席会议的股东所持有表决权数量占公司表决权数量的比 | 48.2821 | | 例（%） | | | 普通股股东所持有表决权数量占公司表决权数量的比例（%） | 48.2821 | （四） 表决方式是否符合《公司法》及公司章程的规定，大会主持情况等。 （一） 股东大会召开的时间：2025 年 12 月 26 日 （二） 股东大 ...

北京市金杜律师事务所 关于有研粉末新材料股份有限公司 2025 年第四次临时股东会的法律意见书 致：有研粉末新材料股份有限公司 北京市金杜律师事务所（以下简称本所）接受有研粉末新材料股份有限公司 （以下简称公司）委托，根据《中华人民共和国证券法》（以下简称《证券法》）、 《中华人民共和国公司法》（以下简称《公司法》）、中国证券监督管理委员会《上 市公司股东会规则》（以下简称《股东会规则》）等中华人民共和国境内（以下简 称中国境内，为本法律意见书之目的，不包括中国香港特别行政区、中国澳门特 别行政区和中国台湾省）现行有效的法律、行政法规、规章和规范性文件和现行 有效的《有研粉末新材料股份有限公司章程》（以下简称《公司章程》）有关规定， 指派律师出席了公司于 2025 年 12 月 26 日召开的 2025 年第四次临时股东会（以 下简称本次股东会），并就本次股东会相关事项出具本法律意见书。 为出具本法律意见书，本所律师审查了公司提供的以下文件，包括但不限于： 1. 公司 2023 年年度股东大会审议通过的《公司章程》； 2. 公司董事会于 2025 年 12 月 10 日作出的《有研粉末新材料股份有限公司 第三 ...

Market Overview - On December 26, the metal new materials sector rose by 0.03% compared to the previous trading day, with Shenzhen Xinxing leading the gains [1] - The Shanghai Composite Index closed at 3963.68, up 0.1%, while the Shenzhen Component Index closed at 13603.89, up 0.54% [1] Stock Performance - Shenzhen Xinxing (603978) closed at 31.71, with a significant increase of 9.99% and a trading volume of 297,800 shares [1] - Youyan Powder Materials (688456) saw a rise of 5.36%, closing at 75.49 with a trading volume of 126,400 shares [1] - Other notable performers include: - Shangda Co., Ltd. (301522) up 3.43% at 39.80 [1] - Antai Technology (000969) up 1.33% at 20.64 [1] - Zhengke Materials (600255) up 0.75% at 4.01 [1] Fund Flow Analysis - The metal new materials sector experienced a net outflow of 446 million yuan from institutional investors, while retail investors saw a net inflow of 537 million yuan [2] - The overall fund flow indicates a mixed sentiment, with institutional investors withdrawing capital while retail investors are actively buying [2] Individual Stock Fund Flow - Shenzhen Xinxing (603978) had a net inflow of 213 million yuan from institutional investors, but a net outflow of 89.12 million yuan from retail investors [3] - Antai Technology (000969) reported a net inflow of 56.89 million yuan from institutional investors, while retail investors had a net outflow of 89.80 million yuan [3] - Other stocks like Longmag Technology (300835) and Dadi Bear (688077) also showed varied fund flows, indicating differing investor sentiments across the sector [3]

有研粉末新材料股份有限公司 股票交易异常波动公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述 或者重大遗漏，并对其内容的真实性、准确性和完整性依法承担法律责任。 重要内容提示： 证券代码：688456 证券简称：有研粉材 公告编号：2025-043 有研粉末新材料股份有限公司（以下简称有研粉材或公司）股票（证券 简称有研粉材，证券代码 688456）交易于 2025 年 12 月 23 日、2025 年 12 月 24 日、2025 年 12 月 25 日连续 3 个交易日内日收盘价格涨幅偏离值累计达到 30%， 根据《上海证券交易所交易规则》的有关规定，属于股票交易异常波动情形。 经公司自查并向实际控制人函证核实，截至本公告披露日，不存在应披 露而未披露的重大事项。 三、董事会声明及相关方承诺 本公司董事会确认，本公司没有任何根据《上海证券交易所科创板股票上市 规则》（以下简称《科创板上市规则》）等有关规定应披露而未披露的事项或与该 等事项有关的筹划和意向，董事会也未获悉根据《科创板上市规则》等有关规定 应披露而未披露的、对本公司股票及其衍生品种交易价格可能产生较大影响的信 息。 四 ...

Core Viewpoint - The company, Youyan Powder Materials, announced that its stock experienced an abnormal fluctuation, with a cumulative price increase of 30% over three consecutive trading days from December 23 to 25, 2025 [1] Group 1: Stock Performance - The stock price deviation was identified as significant, indicating unusual market activity [1] - The company confirmed that there were no major events affecting the stock price and that its daily operations remain normal as of the announcement date [1] Group 2: Insider Trading - There were no stock transactions by the company's directors, senior management, or controlling shareholders during the recent trading days [1] Group 3: Business Fundamentals - The company reassured that its main business and fundamentals have not changed, urging investors to be cautious about trading risks [1]

Group 1 - The metal new materials sector increased by 2.23% on December 25, with Youyan Powder Materials leading the gains [1] - The Shanghai Composite Index closed at 3959.62, up 0.47%, while the Shenzhen Component Index closed at 13531.41, up 0.33% [1] - Key stocks in the metal new materials sector showed significant price increases, with Youyan Powder Materials rising by 11.71% to a closing price of 71.65 [1] Group 2 - The sector saw a net inflow of 3.23 billion yuan from institutional investors, while retail investors experienced a net outflow of 3.43 billion yuan [2] - Major stocks like Zhongke Sanhuan and Sry New Materials had varying levels of net inflow and outflow, indicating mixed investor sentiment [3] - The trading volume for Youyan Powder Materials reached 174,800 hands, with a transaction value of 1.196 billion yuan [1]

Core Viewpoint - On December 24, 2023, Youyan Powder Materials (688456) closed at 64.14 yuan, reaching the daily limit with a trading volume of 5.71 billion yuan and a turnover rate of 9.00% [1] Group 1: Stock Performance - The stock's closing price increased by 15%, leading to its listing on the trading board [1] - The stock experienced a price fluctuation of 19.96% throughout the day [1] Group 2: Trading Activity - The top five trading departments accounted for a total transaction amount of 227 million yuan, with a net selling of 31.14 million yuan [1] - The largest buying department was Guotai Junan Securities Headquarters, with a purchase amount of 33.97 million yuan [2] - The largest selling department was Zhongshan Securities Southwest Branch, with a selling amount of 66.34 million yuan [2] Group 3: Capital Flow - The stock saw a net inflow of 24.89 million yuan from main capital throughout the day [2]

Group 1 - The BC battery concept rose by 2.99%, ranking 10th among concept sectors, with 43 stocks increasing, including Youyan Powder Materials which hit a 20% limit up, and JunDa Co., Ltd. and *ST Yunwang also reached their limit up [1] - The leading gainers in the BC battery sector included Aotwei, Dongcai Technology, and Juhe Materials, which rose by 14.79%, 9.01%, and 7.34% respectively [1] - The sector experienced a net outflow of 0.21 billion yuan in main funds, with 22 stocks seeing net inflows, and 5 stocks receiving over 50 million yuan in net inflows, led by JunDa Co., Ltd. with a net inflow of 2.15 billion yuan [2] Group 2 - The main fund inflow ratios were highest for *ST Yunwang, Saiwu Technology, and JunDa Co., Ltd., with net inflow rates of 27.64%, 13.82%, and 12.69% respectively [3] - JunDa Co., Ltd. had a daily increase of 10.01% with a turnover rate of 16.47%, while Saiwu Technology increased by 7.14% with a turnover rate of 14.87% [3] - Stocks like Aotwei and Dongcai Technology also showed significant movements, with Aotwei increasing by 14.79% and Dongcai Technology by 9.01% [5]

（文章来源：21世纪经济报道） 消息面上，2025第三届商业航天发展大会暨第四届中关村商业航天大会于12月24日在北京召开。大会聚 焦三大核心：一是解读国家商业航天最新政策导向，二是研讨关键技术联合攻关与产业生态建设路径， 三是搭建"政产学研用"协同对接平台。 开源证券认为，对标猎鹰9号火箭的发射价格及发射频次，2030年中国有望实现年发射100次、单次成本 约1亿元水平，火箭发射及卫星制造年产值有望达到850亿元，看好在商业火箭、卫星载荷和下游应用三 方面的标的。 12月24日，A股三大指数今日集体上涨。板块上，商业航天掀起涨停潮，截至收盘共有29股涨停。其 中，新劲刚、有研粉材、新雷能、超捷股份、瑞华泰、谱尼测试6股20cm涨停，神剑股份5天5板。 ...

| 代码 | 名称 | 收盘价 | 涨跌幅 | 成交量(手) | 成交额(元) | | | --- | --- | --- | --- | --- | --- | --- | | 688456 | 有研粉材 | 64.14 | 20.00% | 9.33万 | | 5.71亿 | | 688102 | 斯瑞新材 | 36.10 | 9.49% | 65.57万 | | 22.90亿 | | 688231 | 隆达股份 | 26.93 | 6.02% | 7.54万 | | 2666T | | 301522 | 上大股份 | 35.81 | 5.32% | 1 25.89万 | | 2616 | | 688190 | 云路股份 | 101.65 | 3.65% | 8531.46 | | 8604.75万 | | 920576 | 天力复合 | 79.60 | 3.47% | 10.87万 | | 8.55亿 | | 300811 | 铂科新材 | 75.48 | 3.31% | 9.03万 | | 6.77亿 | | 603978 | 深圳新星 | 29.11 | 2.97% | 30.57万 | | 8.8 ...