Group 1: Industry Performance - The chemical raw materials index increased by 0.40%, and the chemical machinery index rose by 1.28%, while the remaining five indices in the petroleum and chemical sectors declined [1] - The chemical pharmaceutical index decreased by 2.36%, and the pesticide and fertilizer index fell by 1.63% [1] - The petroleum processing index dropped by 0.20%, the petroleum extraction index remained stable, and the petroleum trade index decreased by 1.32% [1] Group 2: Commodity Prices - International crude oil prices saw a significant increase, with West Texas Intermediate crude oil futures settling at $65.72 per barrel, up 4.85% from September 19, and Brent crude oil futures at $70.13 per barrel, up 5.17% [1] - The top five rising petrochemical products included liquid chlorine up by 37.07%, paraquat mother liquid up by 6.25%, lithium battery electrolyte up by 5.71%, hydrogen peroxide up by 4.64%, and fluorite 97 wet powder up by 4.09% [1] - The top five declining petrochemical products included vitamin E down by 7.07%, sulfuric acid down by 6.54%, vitamin B6 down by 5.83%, methyl acrylate down by 5.59%, and dichloromethane down by 3.83% [1] Group 3: Capital Market Performance - The top five rising listed chemical companies were Lanfeng Biochemical up by 61.16%, Shuangwei New Materials up by 44.81%, Huarsoft Technology up by 31.83%, United Chemical up by 27.93%, and Asia-Pacific Industry up by 27.66% [2] - The top five declining listed chemical companies were Jinpu Titanium down by 23.15%, Hanwei Technology down by 18.80%, Sanwei Co. down by 14.29%, Hongda Co. down by 13.56%, and Bingyang Technology down by 11.93% [2]

Core Viewpoint - Company announces a strategic investment in 卓光芮科技 (Zhuoguangrui) to enhance its competitiveness in the precision optics and semiconductor exposure machine industries [2] Group 1: Investment Details - Company plans to invest 12 million yuan in 卓光芮, acquiring 19.3548% of its increased registered capital [2] - The investment will be made using self-owned and raised funds [2] - Company has the right to invest an additional 12 million yuan within six months after the initial investment [2] Group 2: Valuation and Agreements - The additional investment will be priced based on 卓光芮's pre-investment overall valuation not exceeding 700 million yuan [2] - Company has signed an investment subscription agreement and a shareholder agreement with 卓光芮 and its existing shareholders [2] Group 3: Company Name Change - 卓光芮 has changed its company name and completed the necessary business registration procedures [2] - The new business license was issued by the Market Supervision Administration of the China (Shanghai) Pilot Free Trade Zone Lingang New Area [2]

公司及董事会全体成员保证信息披露内容的真实、准确和完整，没 有虚假记载、误导性陈述或者重大遗漏。 一、对外投资概述 龙口联合化学股份有限公司（以下简称"公司"或"联合化学"）基于公司长远 持续发展的战略规划、把握国内精密光学行业和半导体投影式曝光机行业的良好 发展机遇、丰富公司业务类型以及持续增强公司综合竞争力的需要，向卓光芮科 技（上海）有限责任公司（以下简称"卓光芮"）进行增资，以自有和自筹资金出 资 12,000 万元认购卓光芮 359.9991 万元的新增注册资本，占卓光芮增资后注册 资本的 19.3548%。同时，公司有权在本次增资认购款项到位后 6 个月内，以增 资方式继续向卓光芮投资不超过 12,000 万元，且该等投资按照卓光芮投资前整 体估值不超过 7 亿元进行定价。公司与卓光芮及其原有股东签署了《增资认购协 议》和《股东协议》，就公司向卓光芮本次增资事宜约定了各方的权利和义务。 证券代码：301209 证券简称：联合化学 公告编号：2025-042 龙口联合化学股份有限公司 关于参股公司变更名称暨完成工商变更登记的公告 名称：上海米莱芯程半导体有限公司 统一社会信用代码：91500110M ...

New Stock Issuance - New stock issuance for Daoshengtianhe (Code: 780026) priced at 5.98 RMB on September 29, 2025[1] - Offer period for the acquisition of Shangwei New Materials (Code: 688585) is from September 29, 2025, to October 28, 2025[1] Delisting and Trading Alerts - Zitian Tui (Code: 300280) is in the delisting preparation period with 4 trading days remaining until the last trading day[1] - Significant abnormal fluctuations reported for Kaipu Cloud (Code: 688228) on September 25, 2025[1] Recent Announcements - Multiple companies including Zhonghuan Hailu (Code: 301040) and Shenhuafa A (Code: 000020) have recent announcements regarding their stock activities[1] - A total of 30 companies have made announcements regarding stock fluctuations and trading activities in the past week[1]

Core Viewpoint - The company announced that its stock price experienced an abnormal fluctuation, with a cumulative increase of 30% over three consecutive trading days from September 23 to September 25, 2025 [1] Summary by Relevant Sections - **Stock Trading Activity** - The company's stock trading showed a cumulative price increase of 30% over three consecutive trading days [1] - This increase is classified as an abnormal fluctuation in stock trading [1] - **Company's Disclosure** - The company confirmed that there are no corrections or supplements needed for previously disclosed information [1] - No significant undisclosed information has been reported in public media that could impact the stock price [1] - **Operational Status** - The company's recent operational conditions are reported to be normal [1] - There have been no significant changes in the internal or external operating environment [1]

联合化学9月25日发布公告，公司股票交易连续三个交易日内日收盘价涨幅偏离值累计达到30%，属于 股票交易异常波动的情形。经核实，公司前期所披露的信息不存在需要更正、补充之处，未发现近期公 共媒体报道了可能或者已经对本公司股票交易价格产生较大影响的未公开重大信息，近期经营情况正 常，内外部经营环境未发生重大变化，控股股东、实际控制人及一致行动人在股票交易异常波动期间不 存在买卖公司股票的情形，不存在违反公平信息披露的情形。公司董事会确认，目前没有任何根据相关 规定应予以披露而未披露的事项或与该事项有关的筹划、商谈、意向、协议等。 ...

南财智讯9月25日电，联合化学公告，公司股票交易连续三个交易日内（2025年9月23日、2025年9月24 日、2025年9月25日）日收盘价涨幅偏离值累计达到30%，根据《深圳证券交易所交易规则》的有关规 定，属于股票交易异常波动的情形。公司已进行相关核查，确认无应披露而未披露的重大信息，经营状 况正常，内外部环境无重大变化，控股股东及实际控制人在此期间未买卖公司股票。公司提醒投资者关 注官方信息披露渠道，并注意投资风险。 ...

证券代码：301209 证券简称：联合化学 公告编号：2025-041 龙口联合化学股份有限公司 股票交易异常波动公告 4、 经核查，公司控股股东、实际控制人及一致行动人在股票交易异常波动 期间不存在买卖公司股票的情形； 5、 公司不存在违反公平信息披露的情形。 三、 关于不存在应披露而未披露信息的说明 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。 一、 股票交易异常波动的具体情况 龙口联合化学股份有限公司（以下简称"公司"）股票交易连续三个交易日内 （2025年9月23日、2025年9月24日、2025年9月25日）日收盘价涨幅偏离值累计达 到30%，根据《深圳证券交易所交易规则》的有关规定，属于股票交易异常波动的 情形。 二、 对重要问题的关注、核实情况说明 针对公司股票交易异常波动，公司董事会对公司、控股股东及实际控制人就 有关事项进行了核查，相关情况说明如下： 1、 公司前期所披露的信息，不存在需要更正、补充之处； 2、 公司未发现近期公共媒体报道了可能或者已经对本公司股票交易价格产 生较大影响的未公开重大信息； 3、 公司近期经营情况正常，内外部经 ...

证券时报·数据宝统计显示，联合化学所属的基础化工行业，目前整体涨幅为0.55%，行业内，目前股价 上涨的有231只，涨停的有上纬新材、华软科技等3只。股价下跌的有178只，跌幅居前的有瑞丰新材、 阳谷华泰、博苑股份等，跌幅分别为4.37%、2.69%、2.52%。 两融数据显示，该股最新（9月24日）两融余额为4.74亿元，其中，融资余额为4.74亿元，近10日减少 979.84万元，环比下降2.02%。 公司9月22日在交易所互动平台披露，截至最新（9月20日）股东户数为5863户，较上期（9月10日）减 少303户，环比下降4.91%。 公司发布的半年报数据显示，上半年公司共实现营业收入2.69亿元，同比增长4.15%，实现净利润 3375.70万元，同比增长21.62%，基本每股收益为0.3014元，加权平均净资产收益率4.52%。（数据宝） 联合化学股价创出历史新高，截至9:42，该股上涨7.65%，股价报112.39元，成交量223.52万股，成交金 额2.48亿元，换手率2.34%，该股最新A股总市值达125.88亿元，该股A股流通市值107.54亿元。 注：本文系新闻报道，不构成投资建议，股市有 ...

| 买/卖 | 会员营业部名称 | 买入金额（万元） | 卖出金额（万元） | | --- | --- | --- | --- | | 买一 | 开源证券股份有限公司西安西大街证券营业部 | 2528.57 | 3.97 | | 买二 | 机构专用 | 2060.37 | 500.48 | | 买三 | 机构专用 | 1304.44 | 625.64 | | 买四 | 华鑫证券有限责任公司上海宛平南路证券营业部 | 1195.38 | 0.00 | | 买五 | 申万宏源证券有限公司广州汉溪大道东证券营业部 | 1186.85 | 796.30 | | 卖一 | 平安证券股份有限公司佛山季华六路证券营业部 | 0.00 | 1079.45 | | 卖二 | 申万宏源证券有限公司广州汉溪大道东证券营业部 | 1186.85 | 796.30 | | 卖三 | 机构专用 | 881.54 | 795.46 | | 卖四 | 东北证券股份有限公司北京三里河东路证券营业部 | 0.00 | 785.09 | | 卖五 | 机构专用 | 690.56 | 646.26 | （文章来源：证券时报网） 联合化学今日涨停，全 ...