关 于 龙口联合化学股份有限公司 2026 年第一次临时股东会的 北京植德律师事务所 法律意见书 植德京（会）字[2026]0010 号 二〇二六年一月 北京市东城区东直门南大街 1 号来福士中心办公楼 12 层 邮编：100007 12th Floor, Raffles City Beijing Office Tower, No.1 Dongzhimen South Street, Dongcheng District, Beijing 100007 P.R.C 电话(Tel)：010-56500900 传真(Fax)：010-56500999 www.meritsandtree.com 1 北京植德律师事务所 关于龙口联合化学股份有限公司 2026年第一次临时股东会的 法律意见书 植德京（会）字[2026]0010号 致：龙口联合化学股份有限公司（贵公司） 北京植德律师事务所（下称"本所"）接受贵公司的委托，指派律师出席并 见证贵公司 2026 年第一次临时股东会（下称"本次会议"）。 本所律师参加本次会议进行见证，并根据《中华人民共和国公司法》（以下 简称《公司法》）、《中华人民共和国证券法》（以下简称 ...

| （二）内部控制 | | | --- | --- | | 现场检查手段： | | | （1）查阅内部审计部门资料，包括内部审计部门任职人员资料、内部审计制 | | | 度、内部审计部门出具的历次内部审计报告及专项审计报告； | | | （2）查阅审计委员会资料，包括审计委员会工作细则、人员构成、工作报告等； | | | （3）查阅公司对外投资管理制度。 | | | 1.是否按照相关规定建立内部审计制度并设立内部审计部 | 是 | | 门 | | | 2.是否在股票上市后6个月内建立内部审计制度并设立内部 | 是 | | 审计部门 | | | 3.内部审计部门和审计委员会的人员构成是否合规 | 是 | | 4.审计委员会是否至少每季度召开一次会议，审议内部审 | 是 | | 计部门提交的工作计划和报告等 | | | 5.审计委员会是否至少每季度向董事会报告一次内部审计 | 是 | | 工作进度、质量及发现的重大问题等 | | | 6.内部审计部门是否至少每季度向审计委员会报告一次内 部审计工作计划的执行情况以及内部审计工作中发现的问 | 是 | | 题等 | | | 7.内部审计部门是否至少每季度对募集资金的 ...

中德证券有限责任公司 关于龙口联合化学股份有限公司 2025年度持续督导培训情况报告 根据《深圳证券交易所创业板股票上市规则》《深圳证券交易所上市公司自 律监管指引第 2 号——创业板上市公司规范运作》《深圳证券交易所上市公司自 律监管指引第 13 号——保荐业务》等有关规定，中德证券有限责任公司（以下 简称"中德证券"或"保荐机构"）作为负责龙口联合化学股份有限公司（以下 简称"联合化学"或"公司"）持续督导工作的保荐机构，于 2026 年 1 月 9 日对 联合化学到场的董事、高级管理人员、中层以上管理人员及公司控股股东和实际 控制人进行了有针对性的专门培训，并对未到场的相关人员派发了培训资料，督 促其认真学习培训内容。本次培训的具体情况如下： 培训对象：公司董事、高级管理人员、中层以上管理人员及公司控股股东和 实际控制人等相关人员 二、培训内容 中德证券主要以《证券法》《上市公司募集资金监管规则》《上市公司信息披 露管理办法》《上市公司投资者关系管理工作指引》《深圳证券交易所创业板股票 上市规则》《深圳证券交易所上市公司自律监管指引第 2 号——创业板上市公司 规范运作》《深圳证券交易所自律监管措施和纪 ...

Economic Development - Longkou City aims to become a national pioneer in green, low-carbon, high-quality county development by 2035, with a goal to establish a modernized strong city [3] - In 2025, Longkou's GDP reached 1,344.88 billion yuan, with a year-on-year growth of 15%, leading the growth rate among districts in Yantai [5] - The secondary industry in Longkou saw a significant increase, with added value reaching 744.59 billion yuan, growing by 25.9% year-on-year, becoming the core engine of regional economic growth [5] Industrial Strength - Longkou has successfully cultivated two trillion-level industrial chains, with the high-end chemical new materials industry achieving a production value exceeding 100 billion yuan [5] - The city is focusing on a chain-circular system in the chemical industry, promoting a transition towards fine, high-end, and green chemical production [5] - The aluminum industry in Longkou is thriving, with over 130 upstream and downstream enterprises collaborating to form a complete aluminum industrial chain, projected to exceed 100 billion yuan in output value by 2024 [9] Private Economy - Longkou has nearly 120,000 market entities, indicating a high density of entrepreneurs, with one in every seven residents being a business owner [10] - Notable companies such as Nanshan Aluminum and Longi Machinery have consistently ranked among China's top 500 private enterprises, showcasing the robust vitality of Longkou's private economy [12][14] Innovation and Environment - Longkou has established a collaborative service mechanism centered on the "chain leader system" to enhance service levels for its seven leading industries [14][15] - The city has been recognized as a national innovative city for its business environment, reflecting its commitment to fostering a supportive atmosphere for entrepreneurs and innovation [15] Rural Revitalization - Longkou's rural revitalization strategy has led to significant investments, with 12 billion yuan allocated to activate over 10,000 acres of idle land, resulting in an annual income increase of approximately 50 million yuan for local residents [20][21] - The city has developed several rural revitalization demonstration areas, enhancing the integration of industry and agriculture, and promoting a model of shared prosperity [21][22]

Group 1 - Nanda Optoelectronics is a core enterprise in the semiconductor materials field, focusing on the R&D and mass production of ArF photoresists, having achieved breakthroughs that disrupt the monopoly of Japanese and American companies in the mid-to-high-end photoresist market [1][38][39] - The company has established deep cooperation with foundries in the Yangtze River Delta and has successfully validated its ArF photoresist for 28nm processes, leading to significant order growth and capacity expansion following the introduction of U.S. semiconductor tariffs in 2026 [1][39] - The National Big Fund has provided financial support for its photoresist projects, enhancing its first-mover advantage in the domestic photoresist market [1][39] Group 2 - Tongcheng New Materials, based in Shanghai, is a leading domestic rubber additive company that has entered the photoresist market through the acquisition of Beixu Electronics, focusing on the R&D and production of KrF photoresists [2][40] - The company has established stable partnerships with major domestic foundries, achieving large-scale production of KrF photoresists widely used in memory chips and power devices [2][40] - Plans for an H-share listing in 2026 aim to raise funds for high-end photoresist R&D and capacity expansion, further enhancing its competitive edge in the domestic market [2][40] Group 3 - Dinglong Co., headquartered in Wuhan, is a leader in printing and copying consumables, diversifying into semiconductor materials with a focus on polishing pads and supporting materials for photoresists [3][41] - The company has established close cooperation with major foundries like SMIC, achieving import substitution for its CMP polishing pads, which supports its photoresist business [3][41] - Following the U.S. semiconductor tariffs, there has been a surge in demand for localized supporting materials, leading to increased orders for its photoresist and related products [3][41] Group 4 - Yake Technology, located in Jiangsu, has entered the semiconductor photoresist market through the acquisition of South Korea's UP Chemical, focusing on KrF and ArF photoresists [4][42] - The company has integrated the technical advantages of the Korean team with domestic market resources, positioning itself as a core supplier of mid-to-high-end photoresists in the global semiconductor supply chain [4][42] - The electronic specialty gas business complements its photoresist offerings, providing a one-stop material solution for foundries [4][42] Group 5 - Dongcai Technology, based in Sichuan, specializes in high polymer resin materials for photoresists, leveraging its chemical industry foundation in the Southwest [5][43] - The company has achieved batch supply of resin products for various photoresist models, including G/I line and KrF, validated by multiple domestic photoresist manufacturers [5][43] - The demand for localized raw materials has surged following the U.S. semiconductor tariffs, leading to increased production capacity and a focus on high-end resin materials for ArF photoresists [5][43] Group 6 - Lianhong New Materials, located in Shandong, produces core raw materials such as monomers and solvents for photoresists, achieving low-cost production with quality meeting import standards [6][44] - The company has established long-term partnerships with downstream photoresist manufacturers, enhancing product adaptability and market share [6][44] - The acceleration of domestic substitution due to U.S. tariffs has led to a significant increase in orders for its photoresist raw materials [6][44] Group 7 - Shengquan Group, based in Shandong, focuses on developing phenolic and epoxy resins for photoresists, achieving breakthroughs in green and high-performance materials [7][45] - The company has become a core supplier for downstream photoresist manufacturers, benefiting from the growing demand for upstream resin materials following the U.S. semiconductor tariffs [7][45] - Increased R&D investment aims to develop high-end resin materials for KrF photoresists, further extending its position in the semiconductor materials industry [7][45] Group 8 - Shanghai Xinyang, a leader in semiconductor cleaning liquids, has diversified into the photoresist market, focusing on G/I line and electroplating photoresists [8][46] - The company has achieved large-scale production of G/I line photoresists, becoming a major supplier for domestic packaging applications [8][46] - The introduction of U.S. tariffs has accelerated the domestic adoption of photoresist materials, significantly increasing order volumes for its products [8][46] Group 9 - Jingrui Electric Materials, located in Jiangsu, is a leader in microelectronic materials, with its photoresist business covering multiple models including G/I line and KrF [9][48] - The company has accumulated extensive experience in photoresist R&D and production, with KrF photoresists entering the customer validation phase [9][48] - The U.S. semiconductor tariffs have led to a significant increase in domestic procurement of photoresists, resulting in notable revenue growth for the company [9][48] Group 10 - Huamao Technology, based in Fujian, has entered the photoresist market through the acquisition of XuZhou Bokan, focusing on ArF photoresist R&D [10][49] - The company aims to leverage its technical reserves to achieve breakthroughs in the production of mid-to-high-end photoresists, particularly in automotive semiconductor applications [10][49] - The acceleration of domestic substitution due to U.S. tariffs positions the company favorably in the ArF photoresist market [10][49] Group 11 - Jingfang Technology, headquartered in Jiangsu, specializes in semiconductor packaging and testing, relying on photoresists as a core consumable in its processes [11][50] - The company is enhancing cooperation with domestic photoresist manufacturers to optimize supply chain costs amid the push for domestic substitution [11][50] - The growth in demand from automotive electronics and AIoT sectors is driving the expansion of its packaging business, indirectly benefiting from the photoresist market [11][50] Group 12 - Xinlai Yingcai, based in Jiangsu, is a leader in ultra-pure fluid equipment, providing clean production equipment for photoresist manufacturing [12][51] - The company is expanding its product offerings to include ultra-clean equipment suitable for ArF and EUV photoresist production [12][51] - The demand for clean equipment has surged following the U.S. semiconductor tariffs, leading to significant order growth [12][51] Group 13 - Hubei Yihua, located in Hubei, is a leader in basic chemicals, producing raw materials for photoresists such as chlorobenzene and phosphorus trichloride [13][53] - The company has achieved large-scale production of photoresist raw materials, benefiting from the growing demand for localized supply following U.S. tariffs [13][53] - Its integrated chemical industry advantages help reduce production costs, enhancing its competitiveness in the photoresist supply chain [13][53]

Group 1 - The core point of the article is that as of January 9, 2026, the number of shareholders of United Chemical, including both ordinary accounts and margin trading accounts, is 6,153 [2]

Group 1 - The company, United Chemical (301209), announced that it will hold its first extraordinary general meeting of shareholders on January 26, 2026, at 14:30 [1]

变更部分募集资金用途并用于永久补充流动资金的 核查意见 中德证券有限责任公司（以下简称"中德证券"或"保荐机构"）作为龙口 联合化学股份有限公司（以下简称"联合化学"或"公司"）首次公开发行股票 并在创业板上市的保荐机构，根据《证券发行上市保荐业务管理办法》《深圳证 券交易所创业板股票上市规则》《深圳证券交易所上市公司自律监管指引第 2 号 ——创业板上市公司规范运作》等有关规定，就联合化学变更部分募集资金用途 并用于永久补充流动资金的事项进行审慎核查，核查情况及具体核查意见如下： 一、募集资金及募投项目的基本情况 经中国证券监督管理委员会《关于同意龙口联合化学股份有限公司首次公开 发行股票注册的批复》（证监许可〔2022〕1176 号）同意注册，并经深圳证券交 易所同意，公司首次公开发行人民币普通股（A 股）2,000 万股，每股发行价为 人民币 14.95 元，募集资金总额 29,900.00 万元，扣除相关发行费用 4,068.02 万 元后，募集资金净额为 25,831.98 万元。和信会计师事务所（特殊普通合伙）已 对上述募集资金到位情况进行了审验，并出具了"和信验字(2022)第 000040 号 ...

证券代码：301209 证券简称：联合化学 公告编号：2026-003 关于变更部分募集资金用途并用于永久补充流 动资金的公告 本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、误导性陈述或重大遗漏。 一、募集资金及募投项目的基本情况 （一）募集资金基本情况 经中国证券监督管理委员会《关于同意龙口联合化学股份有限公司首次公开发 行股票注册的批复》（证监许可〔2022〕1176号）同意注册，并经深圳证券交易所 同意，龙口联合化学股份有限公司（下称"公司"或"联合化学"）首次公开发行 人民币普通股（A股）2,000万股，每股发行价为人民币14.95元，募集资金总额 29,900.00万元，扣除相关发行费用4,068.02万元后，募集资金净额为25,831.98万元。 和信会计师事务所（特殊普通合伙）已对上述募集资金到位情况进行了审验，并出 具了"和信验字(2022)第000040号"《验资报告》。募集资金到账后，公司对募集资金 进行了专户存储。 公司已将募集资金存放于为本次发行开立的募集资金专户，并同中德证券有限 责任公司（下称"中德证券"或"保荐机构"）分别与华夏银行股份有限公司烟台 龙 ...

证券代码：301209 证券简称：联合化学 公告编号：2026-002 龙口联合化学股份有限公司 关于召开 2026 年第一次临时股东会的通知 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。 龙口联合化学股份有限公司（以下简称"公司"）于 2026 年 1 月 9 日召开的第 二届董事会第十二次会议审议通过了《关于召开公司 2026 年第一次临时股东会的 议案》，定于 2026 年 1 月 26 日（星期一）下午 14:30 召开公司 2026 年第一次临 时股东会（以下简称"本次会议"或"会议"）。现将本次会议有关事宜通知如下： 一、 会议召开基本情况 （一）股东大会届次：2026年第一次临时股东会 （二）召集人：董事会 （三）会议召开的合法、合规性：本次股东会的召开符合有关法律、行政法规、 部门规章、规范性文件、《公司章程》等规定。 （四）会议召开日期和时间： 1、现场会议召开时间：2026年1月26日（星期一）下午14:30。 2、网络投票起止时间：通过深圳证券交易所交易系统进行网络投票的具体时 间：2026年1月26日上午9:15-9:25、9:30- ...