东亚前海证券有限责任公司 关于 长华化学科技股份有限公司 2025 年度以简易程序向特定对象发行股票 之 上市保荐书 保荐人（主承销商） （住所：深圳市前海深港合作区南山街道前湾一路 399 号前海嘉 里商务中心 T7 办公楼 801） 二〇二五年十二月 长华化学科技股份有限公司 上市保荐书 声明 东亚前海证券有限责任公司及所指派的两名保荐代表人均是根据《中华人民 共和国公司法》《中华人民共和国证券法》等法律法规和中国证券监督管理委员 会及深圳证券交易所的有关规定，诚实守信，勤勉尽责，严格按照依法制订的业 务规则和行业自律规范出具本上市保荐书，并保证所出具的文件真实、准确、完 整。 3-3-1 | 十、保荐人对本次股票上市的推荐结论 30 | | --- | 长华化学科技股份有限公司 上市保荐书 释义 本上市保荐书中，除非文义另有所指，下列简称和术语具有如下含义： | 发行人/公司/长华化学 | 指 | 长华化学科技股份有限公司 | | --- | --- | --- | | 东亚前海证券/保荐人/本保荐人 | 指 | 东亚前海证券有限责任公司 | | 上市保荐书/本上市保荐书 | 指 | 《东亚前海证券有限 ...

长华化学科技股份有限公司 （江苏省张家港市扬子江国际化工园北京路 20 号） 2025 年度以简易程序向特定对象发行股票 募集说明书 （申报稿） 保荐人（主承销商） （深圳市前海深港合作区南山街道前湾一路 399 号前海嘉里商务中 心 T7 办公楼 801） 二〇二五年十二月 股票简称：长华化学 股票代码：301518 长华化学科技股份有限公司 募集说明书（申报稿） 声明 本公司及全体董事、审计与合规管理委员会委员、高级管理人员保证本募集 说明书不存在虚假记载、误导性陈述或重大遗漏，并保证所披露信息的真实、准 确、完整。 公司负责人、主管会计工作负责人及会计机构负责人（会计主管人员）保证 募集说明书中财务会计报告真实、完整。 证券监督管理机构及其他政府部门对本次发行所作的任何决定，均不表明其 对发行人所发行证券的价值或者投资者的收益作出实质性判断或者保证。任何与 之相反的声明均属虚假不实陈述。 根据《证券法》的规定，证券依法发行后，发行人经营与收益的变化，由发 行人自行负责，由此变化引致的投资风险，由投资者自行负责。 请全体股东及其他公众投资者认真阅读有关本次交易的信息披露文件，若对 本募集说明书存在任何疑问 ...

格隆汇12月4日丨长华化学(301518.SZ)在投资者互动平台表示，公司目前不涉及电动自行车行业的直接 客户。 ...

格隆汇12月4日丨长华化学(301518.SZ)在投资者互动平台表示，公司目前不涉及电动自行车行业的直接 客户。 ...

Investment Rating - The report maintains an "Outperform" rating for the communication industry [1] Core Insights - The high-end optical chip market is experiencing a supply shortage, accelerating domestic substitution [1] - The demand for optical chips is driven by the rapid development of AI and the need for high-speed communication networks [4][45] - The Chinese government is actively supporting the optical chip industry through various policies and initiatives [42] Summary by Sections 1. Scaling Law and AI Impact - The Scaling Law demonstrates a positive correlation between model performance and the scale of models, data, and computational resources [10] - North American cloud providers are increasing capital expenditures significantly, with a 76.9% year-on-year growth in Q3 2025 [13] - Chinese cloud providers are also ramping up investments in AI infrastructure, with a 32.2% increase in capital expenditures [14] 2. Optical Chips as Core Components - Optical chips are critical for modern high-speed communication networks, directly influencing transmission efficiency [27][30] - The optical chip market is expected to grow at a CAGR of 17% from 2025 to 2030, with total sales projected to rise from approximately $3.5 billion in 2024 to over $11 billion by 2030 [46] - The demand for high-speed optical chips is increasing due to the transition from 800G to 1.6T modules, necessitating advanced chip technologies [4][41] 3. Domestic Market Dynamics - The domestic optical chip industry is transitioning from low-end to high-end production, supported by government policies [42] - The AI data center market is becoming a core growth driver for the optical chip industry, with significant investments in high-speed optical modules [45] - The telecommunications market is also evolving, with increasing demand for high-speed, integrated, and intelligent communication networks [51] 4. Investment Recommendations - The report suggests focusing on companies like Yuanjie Technology and Shijia Photon, which are well-positioned to benefit from the growing optical chip market [5]

Group 1 - Changhua Chemical's stock price dropped by 5.1% to 41.35 CNY per share, with a trading volume of 2.23 billion CNY and a turnover rate of 9.92%, resulting in a total market capitalization of 5.796 billion CNY [1] - The company, established on October 26, 2010, and listed on August 3, 2023, specializes in the research, production, and sales of polyether products, with revenue composition as follows: POP 65.34%, soft foam PPG 26.68%, CASE polyether and specialty polyether 6.80%, and others 1.18% [1] Group 2 - Penghua Fund has a significant holding in Changhua Chemical, with the Penghua Honghe Mixed A fund (001325) holding 99,500 shares, representing 4.98% of the fund's net value, making it the third-largest holding [2] - The fund has reported a floating loss of approximately 220,900 CNY today [2] - The Penghua Honghe Mixed A fund was established on May 25, 2015, with a latest scale of 13.9925 million CNY, achieving a year-to-date return of 51.03% and a one-year return of 47.38% [2] Group 3 - The fund manager of Penghua Honghe Mixed A is Liu Fangzheng, who has a tenure of 10 years and 264 days, with a total fund asset size of 811 million CNY and a best return of 128.22% during his tenure [3] - Co-manager Ji Changchun has a tenure of 9 days, managing assets of 75.1895 million CNY, with a best return of -1.26% during his brief tenure [3]

Core Perspective - The article discusses how companies can transform ESG investments from a compliance cost into a core capital that attracts investment, drives innovation, and builds competitive advantages, ultimately reshaping corporate value [1]. Value Transformation - Companies need to establish a quantifiable ESG assessment system to clearly present the relationship between input and output, avoiding the mindset of only calculating costs without considering value [2]. - ESG investments should be viewed as both costs and benefits, with potential for cost reduction and efficiency gains, such as installing solar panels, and attracting new investors through green financing [2]. - Long-term institutional investors are likely to increase as ESG practices improve, optimizing shareholder structure [2]. - ESG can drive business and product innovation, creating new growth points, especially for products with a lower carbon footprint [2]. Active Practice - The chemical industry is undergoing a green transformation, with companies like Changhua Chemical innovating through catalyst technology to utilize CO2 as a raw material, achieving significant production milestones [3]. - Yabao Chemical has invested over 10 million in sustainable development, responding to industry compliance and enhancing operational efficiency, becoming one of the early adopters of ESG reporting among private enterprises [3][4]. - Ctrip is addressing carbon emission challenges in the travel industry by integrating carbon data from airlines and establishing low-carbon standards for hotels, aligning with the preferences of environmentally conscious consumers [4]. Digital Empowerment - The integration of AI and ESG is becoming a key driver for sustainable development, with companies like Longxin Group leveraging technology to facilitate industry-wide transitions [5][6]. - Longxin Group has developed a distributed photovoltaic management platform covering 50GW of resources and a charging platform with 26 million registered users, significantly enhancing operational efficiency and reducing costs for businesses [6].

Core Insights - The chemical products sector experienced a slight increase of 0.05% on November 24, with Qiaoyuan Co. leading the gains [1] - The Shanghai Composite Index closed at 3836.77, up 0.05%, while the Shenzhen Component Index closed at 12585.08, up 0.37% [1] Stock Performance - Qiaoyuan Co. (301286) saw a significant rise of 11.97%, closing at 36.30 with a trading volume of 96,900 shares and a transaction value of 346 million [1] - Letong Co. (002319) increased by 9.98%, closing at 12.78 with a trading volume of 82,400 shares and a transaction value of 102 million [1] - Changhua Chemical (301518) rose by 9.83%, closing at 41.79 with a trading volume of 96,300 shares and a transaction value of 391 million [1] - Other notable gainers include Kangda New Materials (002669) up 5.43% and Xinxun Technology (001335) up 5.30% [1] Declining Stocks - Chenguang New Materials (6635399) fell by 10.02%, closing at 15.35 with a trading volume of 87,300 shares and a transaction value of 134 million [2] - Yahua Group (002497) decreased by 5.99%, closing at 21.35 with a trading volume of 1,155,700 shares and a transaction value of 2.436 billion [2] - Yongtai Technology (002326) dropped by 5.36%, closing at 23.83 with a trading volume of 1,041,600 shares and a transaction value of 2.503 billion [2] Capital Flow - The chemical products sector saw a net outflow of 1.318 billion from institutional investors, while retail investors contributed a net inflow of 1.303 billion [2][3] - Notable net inflows from retail investors were observed in stocks like Kangda New Materials (002669) and Wanhua Chemical (600309) [3] - Institutional investors showed significant interest in stocks such as Kangda New Materials and Wanhua Chemical, with net inflows of 80.76 million and 74.46 million respectively [3]

11月21日，长华化学大宗交易成交6.42万股，成交额202.68万元，占当日总成交额的0.78%，成交价 31.57元，较市场收盘价38.05元折价17.03%。 | 交易日期 | 证券代码 | 证券简称 | 成交价格 | 成交量 | 成交金额 (万元) | 买方营业部 | 卖方营业部 | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | (元) | (万股/万份) | | | | | 2025-11-21 | 301518 | 长华化学 | 31.57 | 6.42 | | 202.68 方正证券股份有限 | 国泰海通证券股份 | | | | | | | | 公司上海杨高南路 | 有限公司上海临港 | | | | | | | | 证券营业部 | 新片区分公司 | ...

Core Insights - Longhua Chemical's stock increased by 4.72% on November 20, with a trading volume of 344 million yuan [1] - The company reported a net financing outflow of 604.73 million yuan on the same day, with a total financing and securities balance of 1.20 billion yuan [1][2] - Longhua Chemical's revenue for the first nine months of 2025 was 1.991 billion yuan, a year-on-year decrease of 9.31%, while net profit attributable to shareholders increased by 127.81% to 76.067 million yuan [2] Financing and Trading Activity - On November 20, Longhua Chemical had a financing buy-in of 30.576 million yuan, with a current financing balance of 1.20 billion yuan, representing 5.71% of its market capitalization [1] - The financing balance is above the 90th percentile of the past year, indicating a high level of activity [1] - There were no short sales or repayments on the same day, with the short selling balance also at zero, reflecting a high position compared to the past year [1] Company Overview - Longhua Chemical, established on October 26, 2010, is located in Jiangsu and specializes in the research, production, and sales of polyether products [1] - The company's revenue composition includes 65.34% from POP, 26.68% from soft foam PPG, 6.80% from CASE polyethers and specialty polyethers, and 1.18% from other sources [1] Shareholder Information - As of October 31, Longhua Chemical had 12,100 shareholders, a decrease of 13.73% from the previous period, while the average number of circulating shares per shareholder increased by 15.91% to 4,411 shares [2] Dividend Information - Longhua Chemical has distributed a total of 93.3252 million yuan in dividends since its A-share listing [3]