证券代码：600584 证券简称：长电科技 公告编号：临 2025-031 江苏长电科技股份有限公司 关于召开 2025 年半年度业绩说明会的公告 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。 （一）会议召开时间：2025 年 8 月 21 日下午 14:30-16:00 （二）会议召开地点： 重要内容提示： 会议召开时间：2025 年 8 月 21 日（星期四）下午 14:30-16:00 会议召开地点：上证路演中心（网址：https://roadshow.sseinfo.com/）、 进门财经（网址：https://s.comein.cn/yu3j8949） 会议召开方式：进门财经电话会议、上证路演中心转播及网络文字互动 投资者可于 2025 年 8 月 19 日（星期二）16:00 前登录上证路演中心网站 首页点击"预征集问答"栏目或将需要了解的情况和关注的问题发送至公司邮箱 IR@jcetglobal.com 进行提问。公司将在说明会上对投资者普遍关注的问题进行回 答。 江苏长电科技股份有限公司（以下简称"公司"）将 ...

Group 1 - The semiconductor leading ETF (159665) opened with a slight increase of 0.07%, priced at 1.336 yuan [1] - Key holdings in the ETF include: - SMIC down 0.58% - Haiguang Information up 0.86% - Cambrian down 2.22% - Northern Huachuang up 0.28% - OmniVision up 0.24% - Lattice Semiconductor up 0.64% - Zhongwei Company up 0.56% - Zhaoyi Innovation up 0.02% - Changdian Technology up 0.06% - Unisoc up 0.27% [1] - The ETF's performance benchmark is the National Securities Semiconductor Chip Index return, managed by ICBC Credit Suisse Asset Management Company, with a return of 33.66% since its establishment on December 22, 2022, and a return of 7.25% over the past month [1]

Core Viewpoint - The visit by Wang Xiangming, Chairman of China Resources Group, to Changdian Technology's Shengdie Semiconductor factory highlights the company's focus on integrating emerging technologies like artificial intelligence into semiconductor manufacturing [1] Company Summary - Shengdie Semiconductor, a subsidiary of Changdian Technology, specializes in the research, packaging, and testing of advanced flash memory products [1] - The factory tour included inspections of the virtual factory, innovation studio, smart production lines, and employee activity center, indicating a comprehensive approach to modernizing operations [1] Industry Summary - The discussion on how artificial intelligence can empower the future development of semiconductor manufacturing reflects the industry's trend towards adopting advanced technologies to enhance production efficiency and innovation [1]

Group 1 - The core viewpoint of the articles highlights the transformation of traditional manufacturing into high-end intelligent manufacturing through the adoption of advanced technologies and smart systems [1][2] - Runyuan Machinery has significantly improved production efficiency by 20%-30% and increased product quality by 5% through its intelligent production system [1] - The company has been recognized as an advanced intelligent factory in Jiangsu Province, showcasing its successful implementation of smart manufacturing practices [1] Group 2 - Jiangyin High-tech Zone is actively promoting the integration of AI, IoT, and cloud computing into traditional manufacturing, driving the digital transformation of enterprises [2] - Leading companies are investing heavily in smart equipment, with Long Green New Energy investing 40 million yuan and achieving 80% cloud connectivity of its devices [2] - Jiangyin High-tech Zone plans to continue its digital transformation initiatives, focusing on six major actions to enhance product quality, equipment updates, and green transformation [2]

Core Viewpoint - The A-share market shows a slight decline with the Shanghai Composite Index at 3595.19 points, remaining above the annual line, indicating mixed investor sentiment in the market [1] Group 1: Market Performance - The A-share total trading volume reached 1,145.862 billion yuan today [1] - The Shanghai Composite Index experienced a change of -0.08% [1] Group 2: Stocks Breaking Annual Line - A total of 11 A-shares have surpassed the annual line today, with notable stocks including Sinochem International, Blue Arrow Electronics, and I Love My Home, showing significant deviation rates of 8.45%, 2.76%, and 2.71% respectively [1] - Other stocks like Wanli Stone, CITIC Offshore, and Puri Eye Hospital have just crossed the annual line with smaller deviation rates [1] Group 3: Stock Deviation Rate Rankings - The top three stocks with the highest deviation rates are: 1. Sinochem International (10.10% increase, deviation rate 8.45%) 2. Blue Arrow Electronics (2.94% increase, deviation rate 2.76%) 3. I Love My Home (2.88% increase, deviation rate 2.71%) [1] - Additional stocks with notable performance include: - Empire Laser (2.60% increase, deviation rate 2.34%) - Guangfeng Technology (3.31% increase, deviation rate 1.97%) [1]

Group 1 - The CPO (Co-Packaged Optics) concept declined by 0.11% as of the market close on July 24, ranking among the top decliners in the concept sector [1] - Notable decliners within the CPO sector include Tai Chen Guang, Shi Jia Guang Zi, and Changxin Bochuang, while the top gainers were Bo Min Electronics, Lian Ying Laser, and Kai Ge Precision Machinery, with increases of 4.47%, 4.30%, and 3.32% respectively [1] - The Hainan Free Trade Zone concept saw the highest increase at 9.11%, followed by the horse racing concept at 4.67% and the duty-free shop concept at 4.46% [1] Group 2 - The CPO sector experienced a net outflow of 2.078 billion yuan, with 50 stocks seeing net outflows, and 7 stocks experiencing outflows exceeding 100 million yuan [1] - The stock with the highest net outflow was Xin Yi Sheng, with a net outflow of 599.16 million yuan, followed by Tian Fu Communication and Zhong Ji Xu Chuang with outflows of 363.12 million yuan and 221.04 million yuan respectively [1] - The stocks with the highest net inflows included Changdian Technology, Sanan Optoelectronics, and Unisplendour, with net inflows of 156 million yuan, 130 million yuan, and 81.52 million yuan respectively [1]

Core Viewpoint - The high-purity ammonia industry in China is experiencing significant growth driven by increasing domestic demand in the semiconductor, photovoltaic, and LCD sectors, supported by government policies aimed at import substitution and technological advancement [1][9][11]. Industry Overview - High-purity ammonia, with a purity of over 99.999%, is essential for producing materials like gallium nitride (GaN) and silicon nitride (Si3N4), which are used in LED and solar cell manufacturing [3][5]. - The production methods for high-purity ammonia include multi-stage adsorption and distillation processes, achieving varying purity levels [3]. Market Demand and Supply - China's high-purity ammonia production is projected to grow from 36,000 tons in 2018 to 62,000 tons by 2024, while demand is expected to reach 61,000 tons in 2024, reflecting a year-on-year increase of 10.9% [1][9]. - The market size for high-purity ammonia is anticipated to reach 470 million yuan in 2024, marking a 6.8% increase from the previous year [11]. Competitive Landscape - The high-purity ammonia market is characterized by high concentration among a few large companies, which possess advantages in production scale, technology, and brand influence [13]. - Key players in the industry include Zhejiang Yindesai Semiconductor Materials Co., Hubei Heyuan Gas Co., and Jinhong Gas Co., among others [13][15]. Government Policies - The Chinese government has implemented various policies to support the development of the high-purity ammonia sector, including the "14th Five-Year Plan for the Development of the Raw Materials Industry," which emphasizes the advancement of high-purity chemicals and industrial gases [5][7]. Future Trends - The semiconductor industry is expected to drive the demand for high-purity ammonia due to the increasing need for high-performance chips in emerging technologies like AI and new energy vehicles [19]. - There is significant potential for domestic substitution in the high-purity ammonia market, as local companies enhance their technological capabilities [20]. - The industry is also moving towards greener production methods in response to carbon neutrality goals, focusing on reducing carbon emissions and energy consumption [21].

Group 1 - The report by Aijimi highlights the growth of the semiconductor packaging and testing industry, projecting a total revenue of 87.056 billion yuan for listed companies in 2024, representing a year-on-year increase of 20.69% with a gross margin of approximately 15.67% [1] - The top three companies by total revenue in the packaging and testing sector are Changdian Technology (35.962 billion yuan), Tongfu Microelectronics (23.882 billion yuan), and Huatian Technology (14.462 billion yuan) [1] - The report indicates that the R&D expenditure as a percentage of revenue is highest for Liyang Chip (15.95%), Jingfang Technology (14.12%), and Weicai Technology (13.22%) [1] Group 2 - The advanced packaging market is expected to generate total revenue of $51.9 billion in 2024, with a year-on-year growth of 10.9%, and is projected to reach $78.6 billion by 2028, with a compound annual growth rate (CAGR) of 10.05% from 2022 to 2028 [2] - The global semiconductor packaging market is forecasted to grow from $65.04 billion in 2020 to $118.6 billion in 2027, with a CAGR of 6.6%, while advanced packaging is expected to surpass traditional packaging in market size by 2027 [2] Group 3 - The domestic packaging and testing industry is performing well, with Chinese companies leading in brand strength, diverse teams, international operations, technical capabilities, quality assurance, production scale, and operational efficiency [3] - In 2023, capital expenditure in the advanced packaging sector reached $9.9 billion, primarily from major semiconductor companies and leading OSAT firms, with an expected increase to $11.5 billion in 2024 [3] - The report emphasizes that the growth of the semiconductor packaging market is driven by emerging technologies such as AI, IoT, cloud computing, and big data, which are increasing the demand for chips [3] Group 4 - The global Chiplet market is projected to grow from approximately $3.1 billion in 2023 to around $107 billion by 2033, with a CAGR of 42.5% from 2024 to 2033 [4] - Companies like Intel and TSMC have mature Chiplet technologies, while domestic firms such as Changdian Technology and Tongfu Microelectronics are also advancing in this area [4] - The 2.5D/3D packaging market is expected to expand from $9.4 billion in 2022 to $22.5 billion by 2028, with a CAGR of 15.6%, driven by high-performance computing and AI technologies [4]

Core Points - The China Securities Automotive Semiconductor Industry Index has shown a positive trend, with a 4.05% increase over the past month, 1.71% over the past three months, and a 5.76% increase year-to-date [1] - The index comprises up to 50 listed companies involved in providing semiconductor materials, equipment, and products for the automotive electrification and intelligence sectors [1] - The index is based on a starting point of 1000.0 points as of December 30, 2016 [1] Index Holdings - The top ten weighted companies in the index include: Northern Huachuang (4.92%), Changdian Technology (4.74%), OmniVision Technologies (4.71%), Zhaoyi Innovation (4.68%), Zhongwei Company (4.66%), Unisoc (4.46%), Sanan Optoelectronics (4.24%), Rockchip (3.3%), Wingtech Technology (3.14%), and Tongfu Microelectronics (3.05%) [1] - The index's market segment distribution shows that the Shanghai Stock Exchange accounts for 72.40%, while the Shenzhen Stock Exchange accounts for 27.60% [1] Industry Composition - In terms of industry composition, integrated circuits represent 58.41%, semiconductor materials and equipment account for 24.91%, discrete devices make up 9.30%, optoelectronics comprise 4.24%, and electronic terminals and components constitute 3.14% [2] - The index samples are adjusted biannually, with adjustments occurring on the next trading day following the second Friday of June and December each year [2] - Weight factors are generally fixed until the next scheduled adjustment, with special circumstances allowing for temporary adjustments [2]

Core Points - The Shanghai Composite Index opened high and rose, with the China Trading Service Semiconductor Chip Industry Index increasing by 0.29% to 8556.02 points, with a trading volume of 38.839 billion yuan [1] - The China Semiconductor Chip Index has risen by 4.03% in the past month, decreased by 2.63% in the past three months, and increased by 1.61% year-to-date [1] - The index aims to track the overall performance of listed companies in the semiconductor chip industry in the Shanghai and Shenzhen markets, covering areas such as semiconductor chip materials, equipment, design, manufacturing, packaging, and testing [1] Index Holdings - The top ten weighted companies in the China Semiconductor Chip Industry Index are: SMIC (9.36%), Northern Huachuang (7.48%), Haiguang Information (6.77%), Cambricon (6.46%), OmniVision (5.69%), Lattice Semiconductor (5.21%), Zhongwei Company (4.24%), Zhaoyi Innovation (4.14%), Changdian Technology (2.58%), and Unisoc (2.44%) [1] - The market share of the index holdings is 77.35% from the Shanghai Stock Exchange and 22.65% from the Shenzhen Stock Exchange [1] Industry Composition - The industry composition of the China Semiconductor Chip Industry Index is 100% in Information Technology [2] - Public funds tracking the China Semiconductor Chip Index include: Guotai CES Semiconductor Chip Industry ETF Link A, Guotai CES Semiconductor Chip Industry ETF Link C, Huaan CES Semiconductor Chip Industry A, Huaan CES Semiconductor Chip Industry C, Western Li De CES Semiconductor Chip Industry Index Enhanced A, Western Li De CES Semiconductor Chip Industry Index Enhanced C, and Guotai CES Semiconductor Chip ETF [2]