Core Viewpoint - Jiangsu Aisen Semiconductor Materials Co., Ltd. announced a share reduction plan by major shareholders and executives due to personal funding needs, which will not affect the company's control or governance structure [1][8]. Shareholder Information - The major shareholder, Ningbo Ailong Venture Capital Partnership (Limited Partnership), holds 5,869,565 shares, accounting for 6.66% of the total share capital [1][2]. - Individual shareholders include Yang Yiwu with 889,328 shares (1.01%) and Zhao Jianlong with 622,530 shares (0.71%) [2][3]. Reduction Plan Details - Ailong Venture Capital plans to reduce up to 2,643,999 shares (3.00% of total shares) through centralized bidding or block trading, with specific limits on the number of shares that can be sold within designated periods [1][4]. - Yang Yiwu plans to reduce up to 210,000 shares (0.24%), while Zhao Jianlong plans to reduce up to 400,000 shares (0.45%) [1][4]. Timeline and Conditions - The reduction period is set from July 15, 2025, to October 12, 2025, with adjustments to the number of shares based on any corporate actions such as stock splits or capital increases [2][4]. - The shareholders are required to comply with regulations regarding the timing and method of share reductions, including prior announcements to the stock exchange [4][5]. Compliance and Commitments - The major shareholders have made commitments regarding the holding period of their shares, including not transferring shares within 12 months of the company's listing and adhering to specific pricing conditions for any future sales [5][6]. - The company will ensure compliance with relevant laws and regulations during the share reduction process [8][9].

证券代码：688720 证券简称：艾森股份 公告编号：2025-038 重要内容提示： 大股东及董监高持有股份的基本情况 截至本公告披露日，江苏艾森半导体材料股份有限公司（以下简称"公司"） 本次拟减持的股东持股情况如下： 1、持股 5%以上股东宁波艾龙创业投资合伙企业（有限合伙）（以下简称"艾 龙创投"，原"昆山世华管理咨询合伙企业（有限合伙）"）与其一致行动人陈小 华先生合计持有公司股份 5,869,565 股，占公司总股本的比例为 6.66%。 2、公司董事杨一伍先生持有公司 889,328 股，占公司总股本的比例为 1.01%。 江苏艾森半导体材料股份有限公司 关于持股 5%以上股东及董监高减持股份计划公告 本公司董事会、全体董事及相关股东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。 3、公司副总经理赵建龙先生持有公司 800,396 股，占公司总股本的比例为 0.91%，其中 622,530 股为直接持股，另外 177,866 股通过艾龙创投间接持有。 4、公司已离任监事庄建华先生持有公司 1,636,364 股，占公司总股本的比 ...

Core Viewpoint - The announcement indicates that major shareholders and company executives plan to reduce their holdings in the company through centralized bidding or block trading methods [1] Shareholder Reduction Plans - Ningbo Ailong Venture Capital Partnership (Limited Partnership) plans to reduce its holdings by no more than 2.644 million shares, accounting for up to 3.00% of the company's total share capital [1] - Director Yang Yiwu intends to reduce his holdings by no more than 210,000 shares, representing up to 0.24% of the company's total share capital [1] - Deputy General Manager Zhao Jianlong plans to reduce his holdings by no more than 150,000 shares, which is up to 0.17% of the company's total share capital [1] - Former supervisor Zhuang Jianhua aims to reduce his holdings by no more than 400,000 shares, accounting for up to 0.45% of the company's total share capital [1] - The reduction plans will be executed within three months starting from 15 trading days after the announcement [1]

Core Viewpoint - The company is implementing a differentiated and high-end development strategy focused on electroplating and photolithography, with significant progress in product testing and upcoming mass production, which is expected to drive continuous growth in performance [1][3]. Electroplating - The company has established a competitive product matrix for electroplating solutions, achieving full category coverage in traditional and advanced packaging fields, and has made breakthroughs in high-end markets [1]. - In the advanced packaging sector, multiple products for electroplating solutions and additives have entered mass production, widely used in Bumping and RDL processes [1]. - The high-purity copper electroplating solution has achieved stable supply to Huada Technology and Tongfu Microelectronics, while the tin-silver electroplating additive has passed stringent certification from Changdian Technology and received small batch orders [1]. - The copper electroplating additive for advanced packaging is currently undergoing batch stability verification, and the 28nm Damascus copper interconnect process copper plating additive is in the final stages of product certification [1]. - The ultra-high purity cobalt-based solution and additives for 5-14nm advanced processes are progressing well in client testing, and the cleaning solution for copper processes in wafer manufacturing has entered the mass production scaling phase [1]. Photolithography - The advanced packaging negative photoresist has covered multiple mainstream packaging factories, with market penetration continuously increasing, and the company plans to enrich product models for full category coverage [2]. - The self-developed positive PSPI photoresist has successfully obtained the first domestic order from a mainstream wafer factory, breaking the long-standing technology monopoly of the US and Japan, and is expected to gradually achieve mass shipments by 2025 [2]. - The company is also developing negative PSPI and high-sensitivity chemical amplification PSPI, with plans to continue advancing product certification in advanced packaging and wafer manufacturers by 2025 [2]. - The wafer ICA chemical amplification photoresist is undergoing successful client validation testing, with some indicators outperforming international benchmark products [2]. - The OLED high-sensitivity photoresist is in client testing for OLED backplane array photolithography processes, and the company has reached a consensus with BOE on future cooperation and strategic planning [2]. - The high-thickness KrF photoresist is currently in the laboratory research phase, aiming to fill domestic gaps [2]. Market Expansion - The company has acquired INOFINE to expand into the Southeast Asian market, further solidifying its leading position in wet electronic chemicals [3]. - INOFINE, established in 2009, is one of the early entrants in the semiconductor wet electronic chemicals business in Malaysia and holds a certain influence in the local market [3]. - From 2025, INOFINE will be included in the company's consolidated financial statements [3]. Financial Projections - The company expects revenues of 600 million, 727 million, and 913 million yuan for the years 2025, 2026, and 2027, respectively, with net profits attributable to the parent company projected at 50 million, 71 million, and 103 million yuan for the same years [3].

Core Viewpoint - Jiangsu Aisen Semiconductor Materials Co., Ltd. has decided to terminate the planned issuance of shares and cash payment for asset acquisition, along with the related fundraising activities [2][3]. Group 1: Transaction Details - The company originally intended to acquire a 70% stake in Banuo (Suzhou) New Materials Co., Ltd. from 11 counterparties, including Wu Qinglai and Song Wenzhi, through a combination of share issuance and cash payment [2]. - The decision to terminate the transaction was made after careful consideration by the company's board of directors and supervisory board during twelve meetings [2]. Group 2: Insider Trading Investigation - The self-inspection period for insider trading related to this transaction was from February 15, 2025, the date of the transaction proposal disclosure, to May 15, 2025, when the termination was announced [3]. - The scope of the investigation included the company's directors, supervisors, senior management, controlling shareholders, actual controllers, and other relevant parties who had knowledge of the insider information [3]. Group 3: Findings of the Investigation - The investigation concluded that there were no instances of insider information personnel buying or selling the company's stock during the self-inspection period [4].

证券代码：688720 证券简称：艾森股份 公告编号：2025-037 江苏艾森半导体材料股份有限公司 关于终止发行股份及支付现金购买资产并募集配套 资金事项相关内幕信息知情人买卖股票情况自查报 告的公告 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、准确性和完整性依法承担法律责任。 江苏艾森半导体材料股份有限公司（以下简称"公司"）原拟通过发行股份 及支付现金方式向吴清来、宋文志、苏州典晟创业投资合伙企业（有限合伙）、 江苏飞翔化工股份有限公司、湖南众诺控股有限公司等 11 名交易对方购买其合 计持有的棓诺（苏州）新材料有限公司（以下简称"棓诺新材"）70.00%股权， 同时募集配套资金（以下简称"本次交易"）。 2025 年 5 月 14 日，公司召开第三届董事会第十六次会议、第三届监事会第 十二次会议，经公司董事会、监事会审慎研究，审议通过了《关于终止发行股份 及支付现金购买资产并募集配套资金事项的议案》，同意公司终止本次发行股份 及支付现金购买资产并募集配套资金事项（以下简称"本次终止"）并授权公司 管理层办理本次终止相关事宜。具体内容详见公司于 ...

证券代码：688720 证券简称：艾森股份 公告编号：2025-036 江苏艾森半导体材料股份有限公司 关于以集中竞价交易方式回购股份的进展公告 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。 2024 年 11 月 19 日，公司召开第三届董事会第十二次会议，审议通过了《关 于以集中竞价交易方式回购公司股份方案的议案》，同意公司使用自有资金及股票 回购专项贷款以集中竞价交易方式回购公司已发行的部分人民币普通股（A 股） 股票，并将回购股份在未来适宜时机全部用于员工持股计划或股权激励。本次回 购资金总额不低于人民币 4,000 万元（含），不超过人民币 6,000 万元（含），回 购价格不超过人民币 70.58 元/股（含）。回购期限为自公司董事会审议通过回购 股份方案之日起 12 个月内。具体内容详见公司于 2024 年 11 月 25 日在上海证券 交易所网站（www.sse.com.cn）披露的《江苏艾森半导体材料股份有限公司关于 以集中竞价交易方式回购股份的回购报告书》（公告编号：2024-071）。 二、回购股份的进 ...

Market Overview - On May 30, the three major A-share indices collectively declined, with the Shanghai Composite Index falling by 0.47% to 3347.49 points, the Shenzhen Component Index down by 0.85% to 10040.63 points, and the ChiNext Index decreasing by 0.96% to 1993.19 points [1]. Fund Manager Changes - In the past 30 days (April 30 to May 30), a total of 513 fund managers have left their positions across various funds. On May 30 alone, 39 funds announced changes in fund managers, with 6 leaving due to job changes and 2 due to personal reasons [1]. - Notable fund managers who left include those managing a total of 15 funds and 24 funds respectively, indicating significant turnover that could impact fund performance [1]. New Fund Managers - New fund managers have taken over several funds, including Yan Peixian at China Europe Fund, managing assets totaling 12.365 billion yuan, with a notable return of 87.82% over 10 years and 49 days on the China Europe Pure Bond One Year A fund [3]. - Other new appointments include managers for the China Europe Xingyue Bond A and C funds, as well as the China Europe Xingying One Year Open Bond Initiation fund [3]. Fund Research Activity - In the last month, Huaxia Fund conducted the most company research, engaging with 67 listed companies, followed by Bosera Fund with 62 and Harvest Fund with 60 [5]. - The most researched industry was specialized equipment, with 278 instances of fund company inquiries, followed by the medical device sector with 210 inquiries [5]. Individual Stock Research - The most researched stock in the past month was Zhaowei Electromechanical, with 88 fund management companies participating in the research, followed by Anji Technology and Heng'erda with 82 and 80 respectively [6]. - In the past week (May 23 to May 30), Huafeng Technology led with 33 fund institutions conducting research, followed by Jucheng Co., Kexing Pharmaceutical, and Aisen Co. with 27, 24, and 17 respectively [6].

Summary of Conference Call for Aisen Co., Ltd. Industry Overview - The focus for investment this year (2025) is on self-sufficiency, particularly in the equipment and materials sectors, with domestic companies actively replacing foreign products [2][3] - The advanced packaging sector is trending towards higher integration and heterogeneous integration, with 2.5D and 3D packaging becoming key directions for GPU and AI chip development [2][4] Company Insights - Aisen Co., Ltd. has launched mass production of its positive DNQ series photoresist products, with a high market share expectation, while the negative acrylic series holds about a low double-digit percentage [2][6] - The company is conducting chemical amplification RDL photoresist tests, with client validation expected in the second half of the year, aiming for a comprehensive product layout [2][6] - Aisen's positive DNQ and negative acrylic series have gained market share in the domestic advanced packaging sector, which primarily uses JSR's post-film revival photoresist [2][7] Market Dynamics - The HBM memory market is currently dominated by international giants, but domestic companies are gradually entering this space [2][7] - Due to international political factors, the supply of HPV3 and subsequent products is limited, necessitating independent development of related technologies in China [2][8] - The TSV (Through-Silicon Via) technology is crucial in HBM structures, and Aisen is developing TSV photoresist and high-speed copper plating products [2][9] Product Development and Strategy - Aisen is focusing on developing new PSPI materials to meet the diverse needs of advanced packaging, with plans to become a leading supplier in this area within two to three years [2][4][14] - The company has established a strategic partnership with Shenghe Jingwei, focusing on electroplating and photoresist products, with significant sales growth expected [2][26] - Aisen's business performance in the advanced packaging sector is projected to grow rapidly, with a target of achieving significant sales in the wafer and advanced packaging fields [2][14][31] Challenges and Opportunities - The ongoing trade tariff war has increased material procurement costs for several packaging and testing companies, prompting a shift towards domestic materials [2][33] - The domestic PSPI market is still in its infancy, with a market size of approximately 1.5 billion RMB, and Aisen is working to increase its market share through product development and client validation [2][17][22] - The company is addressing supply chain challenges by developing multiple alternative solutions to mitigate reliance on single products [2][19] Future Outlook - Aisen anticipates structural growth driven by increasing demand from domestic clients, particularly in the HBM sector, and plans to expand its product offerings to meet market needs [2][28] - The company aims to enhance its domestic replacement rate and market share through improved risk control and technology advancements [2][25]

Market Overview - The Shanghai Composite Index closed at 3348.37 points, above the annual line, with a decline of 0.94% [1] - The total trading volume of A-shares reached 1,182.564 billion yuan [1] Stocks Breaking Annual Line - A total of 31 A-shares have surpassed the annual line today, with notable stocks including: - Pruis (4.48% deviation) - Yingjie Electric (3.80% deviation) - Boying Special Welding (3.01% deviation) [1] - Stocks with smaller deviations just above the annual line include: - Shuangjian Co., Ltd. - Rhine Biology - Bull Group [1] Top Performers - The top three stocks with the highest deviation rates from the annual line are: 1. Pruis: 5.17% increase, 8.64% turnover rate, latest price 30.12 yuan 2. Yingjie Electric: 5.80% increase, 8.35% turnover rate, latest price 48.50 yuan 3. Boying Special Welding: 3.28% increase, 6.03% turnover rate, latest price 22.70 yuan [1] Additional Notable Stocks - Other notable stocks with significant performance include: - Fosa Technology: 3.03% increase, 8.32% turnover rate, latest price 32.31 yuan - Shandong Haihua: 5.57% increase, 6.80% turnover rate, latest price 5.88 yuan - Renfu Pharmaceutical: 3.06% increase, 2.53% turnover rate, latest price 20.88 yuan [1]