| | | 深圳瑞华泰薄膜科技股份有限公司 可转债转股结果暨股份变动公告 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。 累计转股情况：截至 2026 年 3 月 31 日，"瑞科转债"累计共有人民币 55,000 元已转换为公司股票，累计转股数量为 1,776 股，占"瑞科转债"转股前 公司已发行股份总额的 0.000987%。 未转股可转债情况：截至 2026 年 3 月 31 日，"瑞科转债"尚未转股的可 转债金额为人民币 429,945,000 元，占"瑞科转债"发行总量的 99.987209%。 一、可转债发行上市概况 经中国证券监督管理委员会《关于同意深圳瑞华泰薄膜科技股份有限公司向 不特定对象发行可转换公司债券注册的批复》（证监许可〔2022〕1546 号）同意 注册，公司于 2022 年 8 月 18 日向不特定对象共计发行 430 万张可转换公司债券 （以下简称"可转债"），每张面值为人民币 100 元，按面值发行，本次发行总额 1 为人民币 43,000.00 万元。可转债的期限为自发行之日起六年，即 ...

深圳瑞华泰薄膜科技股份有限公司 关于为全资子公司提供担保的公告 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： 担保对象及基本情况 | | 本次担保金额 | 实际为其提供的 | | 是否在前期预计 | 本次担保是否有 | | --- | --- | --- | --- | --- | --- | | | | 担保余额（不含本 次担保金额） | | 额度内 | 反担保 | | | 2,200.00 万元 | 70,085.93 | 万元 | 是 | 不适用 | | 被担保人名称 嘉兴瑞华泰薄膜技 术有限公司 | | | | | | 累计担保情况 | 对外担保逾期的累计金额（万元） | 0.00 | | --- | --- | | 截至本公告日上市公司及其控股 | 71,347.55 | | 子公司对外担保总额（万元） | | | 对外担保总额占上市公司最近一 期经审计净资产的比例（%） | 75.65 | | 特别风险提示（如有请勾选） | 担保金额（含本次）超过上市公司最近一 | | | 期经审计净资产 50 ...

股票代码：688323 股票简称：瑞华泰 转债代码：118018 转债简称：瑞科转债 2026 年第一次临时股东会会议资料 目录 | 2026 | 年第一次临时股东会会议须知…………………………………………..…… | 2 | | --- | --- | --- | | 2026 | 年第一次临时股东会会议议程………………………………………..……… | 4 | | | 议案一：关于董事会提议向下修正"瑞科转债"转股价格的议案…………… 6 | | 深圳瑞华泰薄膜科技股份有限公司 2026 年第一次临时股东会 会议资料 二〇二六年四月 深圳瑞华泰薄膜科技股份有限公司 2026 年第一次临时股东会会议资料 深圳瑞华泰薄膜科技股份有限公司 1 深圳瑞华泰薄膜科技股份有限公司 2026 年第一次临时股东会会议资料 2026 年第一次临时股东会会议须知 为了维护全体股东的合法权益，确保股东会的正常秩序和议事效率，保证大 会的顺利进行，根据《中华人民共和国公司法》《中华人民共和国证券法》《上市 公司股东会规则》以及《深圳瑞华泰薄膜科技股份有限公司章程》《深圳瑞华泰 薄膜科技股份有限公司股东会议事规则》等相关规定，深圳瑞 ...

Investment Rating - The report indicates a positive investment outlook for the space photovoltaic industry, highlighting significant growth potential driven by technological advancements and market demand [3]. Core Insights - The commercial space sector is entering a large-scale, industrialized phase, with the market expected to reach trillion-yuan levels, particularly in space photovoltaics, which are anticipated to see explosive demand growth [3][30]. - The technology landscape for space photovoltaics is evolving through a tiered approach: GaAs technology dominates high-value applications, while P-type HJT and perovskite technologies are emerging as key players for future applications [3][11]. - The demand for low Earth orbit (LEO) satellites and space computing is creating a substantial market opportunity, with projections estimating the space photovoltaic market could grow from hundreds of billions to trillions of yuan by 2030 [3][30]. Summary by Sections 1. Technology Evolution of Space Photovoltaics - The development path of space photovoltaics shows a clear evolution from silicon to GaAs and then to multi-junction and perovskite technologies, focusing on efficiency, cost, and radiation resistance [5][11]. - Current leading technology is the multi-junction GaAs solar cells, which are highly efficient but face cost and production capacity limitations for broader applications [11][21]. 2. Market Demand and Growth Potential - The low Earth orbit satellite market is projected to reach approximately 29 billion yuan by 2030, with optimistic scenarios for space computing potentially pushing the overall market towards trillion-yuan levels [3][30]. - The rapid increase in satellite launches, particularly by major players like SpaceX and China's satellite constellations, is driving demand for space photovoltaics [30][31]. 3. Investment Opportunities - The report suggests prioritizing investments in photovoltaic equipment manufacturers that possess space photovoltaic technology, as well as companies involved in advanced materials for space applications [3][50]. - Key companies identified for investment include Maiwei, Jiejia Weichuang, and others that are leading in equipment and technology for space photovoltaics [50][55]. 4. Key Companies and Their Developments - Maiwei is highlighted as a leading company in HJT technology with significant orders from SpaceX, indicating strong market positioning [50]. - Other notable companies include Jiejia Weichuang and Laoplas, which are advancing in TOPCon and perovskite technologies, respectively [50][55]. - Companies like Kaisheng Technology and Lens Technology are also making strides in developing materials suitable for space photovoltaic applications [50][55].

| 证券代码：688323 | 证券简称：瑞华泰 | 公告编号：2026-011 | | --- | --- | --- | | 转债代码：118018 | 转债简称：瑞科转债 | | 深圳瑞华泰薄膜科技股份有限公司关于 董事会提议向下修正"瑞科转债"转股价格的公告 经公司第三届董事会第八次会议审议，公司董事会提议向下修正"瑞科 转债"转股价格，该事项尚需提交公司股东会审议。 一、可转换公司债券基本情况 经中国证券监督管理委员会《关于同意深圳瑞华泰薄膜科技股份有限公司向 不特定对象发行可转换公司债券注册的批复》（证监许可〔2022〕1546 号）同意 注册，公司于 2022 年 8 月 18 日向不特定对象共计发行 430 万张可转换公司债券 （以下简称"可转债"），每张面值为人民币 100 元，按面值发行，本次发行总 额为人民币 43,000.00 万元，并于 2022 年 9 月 14 日起在上海证券交易所挂牌交 易，债券简称"瑞科转债"，债券代码"118018"。 根据相关规定及《深圳瑞华泰薄膜科技股份有限公司 2022 年度向不特定对 象发行可转换公司债券募集说明书》（以下简称"《募集说明书》"）的约 ...

转债代码：118018 转债简称：瑞科转债 深圳瑞华泰薄膜科技股份有限公司 关于召开2026年第一次临时股东会的通知 证券代码：688323 证券简称：瑞华泰 公告编号：2026-012 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： 一、 召开会议的基本情况 （一） 股东会类型和届次 2026年第一次临时股东会 （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 （四） 现场会议召开的日期、时间和地点 召开日期时间：2026 年 4 月 10 日 14 点 30 分 召开地点：深圳市宝安区松岗街道办华美工业园深圳瑞华泰薄膜科技股份有 限公司会议室 （五） 网络投票的系统、起止日期和投票时间。 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2026 年 4 月 10 日 至2026 年 4 月 10 日 1 股东会召开日期：2026年4月10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 采用上海证券交易所网络 ...

Investment Rating - The report does not explicitly state an investment rating for the chemical industry, but it provides various investment suggestions based on the analysis of different segments within the industry [6]. Core Insights - The petrochemical industry is a pillar of the national economy, with a significant economic volume, long industrial chain, and wide product variety, impacting supply chain security, green development, and public welfare [8]. - The report identifies four major directions related to the chemical industry based on the "14th Five-Year Plan": security assurance in key areas, comprehensive rectification of "involution" competition, domestic substitution of new materials, and green low-carbon economy [8]. Summary by Sections 1. National Economic Pillar Industry - The petrochemical industry is crucial for economic stability, with projected revenues of 15.7 trillion yuan in 2025, a 3% decrease year-on-year, and total profits of 702.09 billion yuan, down 9.6% [8]. 2. Strengthening Strategic Material Supply - The "14th Five-Year Plan" aims for a grain production capacity of 1.45 trillion jin and energy production capacity of 5.8 billion tons of standard coal, emphasizing the importance of fertilizer supply stability and energy resource security [9]. - Key companies to watch include Hualu Hengsheng, Yuntianhua, and China Petroleum, focusing on fertilizer supply and oil and gas production [9][11]. 3. Comprehensive Rectification of "Involution" Competition - The report suggests that the PTA industry is expected to see an upward correction in demand due to improved supply and demand conditions, with a projected capacity of 90.35 million tons and production of 73.42 million tons by 2025 [43][44]. - The polyester filament industry is becoming more concentrated, which may lead to a more orderly market supply, with a production capacity of 53.16 million tons by 2025 [48][49]. 4. Empowering Emerging Industries and Accelerating Domestic Substitution of New Materials - The report highlights the potential for new materials such as PEEK and electronic-grade PPO to drive growth in emerging industries, with significant investment opportunities in companies like Zhongyan Co., Guo'en Co., and Watte Co. [10]. 5. Accelerating Green Low-Carbon Transition - The "14th Five-Year Plan" emphasizes achieving carbon peak targets, with a focus on clean energy systems and reducing carbon emissions by 17% per unit of GDP by 2025 [10]. - Companies like Satellite Chemical and Wanhua Chemical are noted for their competitive advantages in green low-carbon production [10].

| | | 深圳瑞华泰薄膜科技股份有限公司 关于"瑞科转债"预计满足转股价格修正条件 的提示性公告 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。 一、可转债发行上市概况 经中国证券监督管理委员会（以下简称"中国证监会"）《关于同意深圳瑞华 泰薄膜科技股份有限公司向不特定对象发行可转换公司债券注册的批复》（证监 许可〔2022〕1546 号）同意注册，深圳瑞华泰薄膜科技股份有限公司（以下简 称"公司"）于 2022 年 8 月 18 日向不特定对象共计发行 430 万张可转换公司债 券（以下简称"可转债"），每张面值为人民币 100 元，按面值发行，本次发行总 额为人民币 43,000.00 万元，可转债期限为自发行之日起六年。 经上海证券交易所（以下简称"上交所"）自律监管决定书[2022]251 号文 同意，公司 43,000.00 万元可转债于 2022 年 9 月 14 日起在上交所挂牌交易，债 券简称"瑞科转债"，债券代码"118018"。 根据相关规定及《深圳瑞华泰薄膜科技股份有限公司 2022 年度向不特定对 ...

Investment Rating - The report maintains a "Recommended" rating for the chemical industry [1][28]. Core Insights - The global chemical industry is entering a significant upward cycle driven by anti-involution and AI demand, with China's leading companies benefiting from solid cost and efficiency advantages. The industry is expected to see a substantial increase in free cash flow as capacity expansion slows, transforming companies from cash-consuming entities to cash-generating ones. The upcoming peak season for chemicals is anticipated to enhance profitability, making it crucial to focus on demand, value, and supply dynamics for investment opportunities [3][28]. Summary by Sections Recent Trends - As of March 5, 2026, the Guohai Chemical Prosperity Index stands at 99.35, reflecting a 5.16 increase from February 26, 2026 [1]. Performance Metrics - The basic chemical sector has shown a performance increase of 7.4% over the past month, 23.6% over the past three months, and 50.8% over the past year [4]. Investment Opportunities 1. **Value-Driven Opportunities**: Potential for increased dividend yields in sectors such as coal chemicals (e.g., Hualu Hengsheng, Luxi Chemical), oil refining (e.g., Hengli Petrochemical, Sinopec), pesticides (e.g., Yangnong Chemical), and potassium fertilizers (e.g., Salt Lake Industry) [3]. 2. **Supply-Driven Opportunities**: Focus on domestic anti-involution policies and European capacity exits, with key players including PTA/Polyester (e.g., Xinfengming, Tongkun), glyphosate and organosilicon (e.g., Xingfa Group), and industrial silicon (e.g., Hoshine Silicon) [6]. 3. **Demand-Driven Opportunities**: Highlighting sectors benefiting from large-scale opportunities, including gas turbines (e.g., Zhenhua Group), refrigerants (e.g., Juhua), and energy storage (e.g., Chuanheng) [6]. Key Companies and Earnings Forecasts - The report tracks several key companies with their respective earnings per share (EPS) forecasts for 2024 to 2026, indicating a positive outlook for many, including Dongfang Shenghong, Hubei Yihua, and Wanhua Chemical [29]. Market Observations - The report notes that geopolitical tensions, particularly in the Middle East, are likely to drive oil prices higher, benefiting companies like China National Petroleum and CNOOC, while also increasing costs for petrochemical products [9][13]. Price Trends - Recent price increases have been observed in various chemical products, including MDI and TDI, with significant upward movements in raw material costs due to geopolitical events [14][18]. Conclusion - The chemical industry is positioned for a favorable outlook, driven by structural changes in supply and demand dynamics, with a focus on companies that can leverage these trends for growth and profitability [28].

Investment Rating - The report maintains a "Recommended" rating for the chemical industry [1] Core Insights - The report highlights the solid cost and efficiency advantages of leading Chinese chemical companies, which are entering a long-term upward performance phase. The recovery in demand is expected to sustain the improvement in the performance of supply-constrained sectors. The carbon emission control measures are likely to lead to a re-evaluation of the Chinese chemical industry, with capacity expansion slowing down significantly. This is expected to enhance free cash flow and potential dividend yields for companies, transforming them from cash-consuming entities to cash-generating ones. The report emphasizes the importance of demand, value, and supply in identifying investment opportunities [2][29] Summary by Sections Recent Trends - As of February 26, 2026, the Guohai Chemical Prosperity Index stands at 94.19, reflecting a slight increase of 0.22 from February 19, 2026 [1] Performance Analysis - The basic chemical sector has shown a performance increase of 6.0% over the past month, 26.1% over the past three months, and 52.2% over the past year, significantly outperforming the CSI 300 index [4] Investment Opportunities - **Value-Driven Opportunities**: Companies such as Hualu Hengsheng, Luxi Chemical, and Baofeng Energy are highlighted for their potential dividend rate increases [2] - **Supply-Driven Opportunities**: Companies like Xin Fengming and Tongkun Co. are noted for benefiting from domestic supply constraints and European capacity exits [6] - **Demand-Driven Opportunities**: The report identifies companies in sectors such as gas turbines, refrigerants, and energy storage as key beneficiaries of growing demand [6][7] Key Companies and Earnings Forecast - The report provides a detailed earnings forecast for various companies, indicating a positive outlook for firms like Dongfang Shenghong, Hubei Yihua, and Baofeng Energy, with expected earnings per share (EPS) growth in the coming years [30] Market Dynamics - The report discusses the impact of geopolitical tensions on oil prices, which are expected to rise, benefiting companies like China Petroleum and China National Offshore Oil Corporation. It also notes potential supply shortages in methanol and urea due to disruptions in Iranian production [10][11] Price Trends - Recent price movements include a significant increase in battery-grade lithium carbonate prices, which rose by 19.18% week-on-week, driven by supply constraints and demand recovery [14] Conclusion - The report concludes that the chemical industry is entering a favorable cycle, driven by supply-side constraints and increasing demand, making it an attractive investment area [29]