Market Overview - The general equipment sector experienced a decline of 0.21% on November 26, with smart control leading the drop [1] - The Shanghai Composite Index closed at 3864.18, down 0.15%, while the Shenzhen Component Index closed at 12907.83, up 1.02% [1] Stock Performance - Notable gainers in the general equipment sector included: - Wald (688028) with a closing price of 74.90, up 12.72% and a trading volume of 141,800 shares, totaling 1.024 billion yuan [1] - Zhongshun Group (000039) closed at 9.35, up 10.00% with a trading volume of 1,947,400 shares, totaling 1.764 billion yuan [1] - Huashu High-Tech (688433) closed at 62.18, up 7.21% with a trading volume of 74,100 shares, totaling 447 million yuan [1] Decliners - Key decliners included: - Smart Control (002877) with a closing price of 9.45, down 9.91% and a trading volume of 681,500 shares, totaling 657 million yuan [2] - Rongyi Precision (920223) closed at 21.50, down 6.52% with a trading volume of 89,600 shares, totaling 195 million yuan [2] - Huafeng Co. (605100) closed at 43.91, down 5.39% with a trading volume of 84,600 shares, totaling 377 million yuan [2] Capital Flow - The general equipment sector saw a net outflow of 614 million yuan from institutional investors and a net outflow of 119 million yuan from retail investors, while retail investors had a net inflow of 733 million yuan [2] - Specific stock capital flows indicated: - Zhongshun Group (000039) had a net inflow of 47.416 million yuan from institutional investors, while retail investors experienced a net outflow of 18.000 million yuan [3] - Wald (688028) had a net inflow of 96.345 million yuan from institutional investors, with retail investors seeing a net outflow of 78.723 million yuan [3] - Sifangda (300179) had a net inflow of 81.558 million yuan from institutional investors, while retail investors faced a net outflow of 85.899 million yuan [3]

证券代码：600172 证券简称：黄河旋风 编号：临 2025-046 河南黄河旋风股份有限公司 关于续聘会计师事务所的公告 本公司董事会及全体董事保证本公告内容不存在虚假记载、误导性陈述或者 重大遗漏，并对其内容的真实性、准确性和完整性承担个别及连带责任。 成立日期：2013 年 12 月 13 日 组织形式：特殊普通合伙 注册地址：北京市西城区西直门外大街 112 号十层 1001 首席合伙人：胡柏和 重要内容提示： ● 拟聘任的会计师事务所名称：中勤万信会计师事务所（特殊普通合伙） （以下简称"中勤万信"） 一、拟聘任会计师事务所的基本情况 （一）机构信息 1、基本信息 会计师事务所名称：中勤万信会计师事务所（特殊普通合伙） 上年度末合伙人数量（2024 年 12 月 31 日）：76 人 上年度末注册会计师人数（2024 年 12 月 31 日）：393 人 上年度末签署过证券服务业务审计报告的注册会计师人数 （2024 年 12 月 31 日）：136 人 最近一年收入总额（经审计）（2024 年度）：47,668.50 万元 最近一年审计业务收入（经审计）（2024 年度）：40,751.23 万 ...

证券代码：600172 证券简称：黄河旋风 公告编号：临 2025-047 河南黄河旋风股份有限公司 关于召开2025年第四次临时股东会的通知 重要内容提示： 一、 召开会议的基本情况 (一)股东会类型和届次 2025年第四次临时股东会 (二)股东会召集人：董事会 (三)投票方式：本次股东会所采用的表决方式是现场投票和网络投票相结合的方 式 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、准确性和完整性承担法律责任。 (四)现场会议召开的日期、时间和地点 召开的日期时间：2025 年 12 月 8 日 15 点 00 分 召开地点：河南省长葛市人民路 200 号 (五)网络投票的系统、起止日期和投票时间。 股东会召开日期：2025年12月8日 本次股东会采用的网络投票系统：上海证券交易所股东会网络投票系统 网络投票系统：上海证券交易所股东会网络投票系统 网络投票起止时间：自2025 年 12 月 8 日 至2025 年 12 月 8 日 采用上海证券交易所网络投票系统，通过交易系统投票平台的投票时间为股 东会召开当日的交易时间段，即 9:15-9:25，9 ...

（一）关于续聘会计师事务所的议案 具体内容详见同日在上海证券报和上海证券交易所网站（www.sse.com.cn） 披露的相关公告，本议案尚需提交公司股东会审议。 证券代码：600172 证券简称：黄河旋风 编号：临 2025-045 河南黄河旋风股份有限公司 第九届董事会第二十五次会议决议公告 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、准确性和完整性承担法律责任。 河南黄河旋风股份有限公司（以下简称"公司"）第九届董事会第二十五次 会议通知于 2025 年 11 月 18 日以电子方式发出，于 2025 年 11 月 21 日上午 10:00 以通讯方式召开。会议应到董事 9 人，实到 9 人。本次会议符合《公司法》和《公 司章程》的规定，会议由董事长李戈先生主持，经与会董事审议，通过如下议案： 一、审议事项 表决结果：本议案以 9 票同意，0 票反对，0 票弃权获得通过。 （二）关于召开公司 2025 年第四次临时股东会的议案 具体内容详见同日在上海证券报和上海证券交易所网站（www.sse.com.cn） 披露的相关公告。 表决结果：本议案以 ...

New Stock Issuance - Cash option declaration period for Hangzhou Steam Turbine (200771) is from November 19 to November 25, 2025[1] - Acquisition request period for Hailianxun (300277) is from November 12 to November 18, 2025[1] Trading Alerts - Severe abnormal fluctuation reported for Haike Xinyuan (301292) on November 11, 2025[1] - Abnormal fluctuation noted for ST Yuancheng (603388) on November 11, 2025[1] Company Announcements - Announcement for Tianji Co., Ltd. (002759) on November 13, 2025[1] - Announcement for Huatong Technology (688109) on November 13, 2025[1] Other Notable Events - ST Meigu (000615) reported on November 13, 2025[1] - ST Zhongdi (000609) reported on November 13, 2025[1]

New Stock Issuance - The stock code 300277 (Hai Lian Xun) has a subscription period for acquisition rights from November 12 to November 18, 2025[1] - Stock code 688353 (Hua Sheng Lithium) reported severe abnormal fluctuations on November 11, 2025[1] - Stock code 603122 (He Fu China) has an announcement dated November 8, 2025[1] Trading Alerts - Stock code 601888 (China Zhong Mian) has an announcement dated November 12, 2025[1] - Stock code 600537 (Yi Jing Guang Dian) has an announcement dated November 12, 2025[1] - Stock code 688028 (Wo Er De) has an announcement dated November 12, 2025[1] Abnormal Fluctuations - Stock code 600815 (Xia Gong Co.) reported abnormal fluctuations on November 6, 2025[2] - Stock code 603557 (ST Qi Bu) reported abnormal fluctuations on November 7, 2025[3] - Stock code 002478 (Chang Bao Co.) reported abnormal fluctuations on November 7, 2025[3]

Group 1 - The cultivated diamond sector experienced a decline of 4.21%, ranking among the top losers in the concept sector, with *ST Yazhen hitting the daily limit down [1][2] - Major stocks within the cultivated diamond sector that saw significant declines include Jing Sheng Electric (-7.23%), Huanghe Xuanfeng (-5.38%), and Sifangda (-6.02%) [2][3] - Conversely, stocks that gained in this sector include Guoli Electronics (+3.39%), Chaohongji (+2.24%), and Yuyuan Shares (+1.43%) [1][3] Group 2 - The cultivated diamond sector faced a net outflow of 9.45 billion yuan in principal funds, with 12 stocks experiencing net outflows, and 6 stocks seeing outflows exceeding 1 billion yuan [2] - The stock with the highest net outflow was Jing Sheng Electric, with a net outflow of 1.75 billion yuan, followed by Huanghe Xuanfeng and Sifangda with net outflows of 1.63 billion yuan and 1.44 billion yuan, respectively [2] - Stocks with the highest net inflows included Hengsheng Energy, World, and Chaohongji, with net inflows of 12.56 million yuan, 10.98 million yuan, and 10.39 million yuan, respectively [2][3]

证券代码：600172 证券简称：黄河旋风 公告编号：临 2025-044 河南黄河旋风股份有限公司 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、准确性和完整性承担法律责任。 重要内容提示： 河南黄河旋风股份有限公司（以下简称"公司"）股票于 2025 年 11 月 7 日、11 月 10 日、11 月 11 日连续三个交易日内收盘价格涨幅偏离值累计超过 20%。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。 经公司自查，并向公司控股股东、实际控制人发函询问得知：公司、公司控 股股东及实际控制人均不存在应披露而未披露的影响公司股价异常波动的重大 信息，包括但不限于重大资产重组、股份发行、收购、债务重组、业务重组、资 产剥离、资产注入、股份回购、股权激励、破产重整、重大业务合作、引进战略 投资等对公司股票交易价格产生较大影响的重大事项。 （三）媒体报道、市场传闻、热点概念情况 经公司自查，未发现对公司股票交易价格可能产生重大影响的媒体报道或市 场传闻；公司未发现其他可能对公司股价产生较大影响的重大事件。 （四）其他 ...

Core Viewpoint - The company announced that its stock experienced an abnormal fluctuation, with a cumulative closing price increase exceeding 20% over three consecutive trading days in November 2025 [1] Group 1 - The company confirmed that its production and operations are normal, with no significant changes in daily operations [1] - The company, its controlling shareholders, and actual controllers have no undisclosed significant information that could impact the stock price [1] - No major media reports or market rumors that could significantly affect the stock price were identified [1] Group 2 - The company has issued a reminder to investors to be cautious of trading risks and to make rational decisions [1]

Group 1 - The cultivated diamond concept has seen a significant increase of 6.08%, ranking first among concept sectors, with 16 stocks rising, including Sifangda which hit the daily limit of 20% [1] - Notable stocks in the cultivated diamond sector include Huanghai Xuanfeng, which rose by 17.95%, Huifeng Diamond by 16.16%, and Liliang Diamond by 10.30% [1] - The sector attracted a net inflow of 899 million yuan from main funds, with 10 stocks receiving net inflows, and 5 stocks exceeding 50 million yuan in net inflow [2] Group 2 - The top three stocks by net inflow are Huanghai Xuanfeng with 315 million yuan, Sifangda with 301 million yuan, and Guojijinggong with 113 million yuan [2] - The net inflow ratios for Huanghai Xuanfeng, Sifangda, and Guojijinggong are 21.94%, 20.28%, and 10.91% respectively [3] - The trading volume and turnover rates for key stocks in the cultivated diamond sector indicate strong investor interest, with Sifangda showing a turnover rate of 22.42% [3][4]