Core Viewpoint - The company, Saiwei Electronics, plans to acquire a stake in Beijing Chip East Semiconductor Technology Co., Ltd. for a total transaction price not exceeding 600 million yuan, aiming to enhance its supply chain and increase the application ratio of domestic equipment [1] Group 1: Transaction Details - The total transaction price for the stake acquisition is set at a maximum of 600 million yuan [1] - As of the announcement date, the company has not yet completed the equity transfer with potential counterparties [1] Group 2: Business Operations and Risks - Chip East's lithography machine business is categorized under mature processes and does not involve advanced processes [1] - The company may face various risks in actual operations, including operational management and market competition [1] - The short-term impact of this investment on reducing key core equipment supply risks and enhancing the application ratio of domestic equipment may be limited [1] - There is a risk that the company may not achieve its expected investment objectives [1]

Core Viewpoint - The stock of Saiwei Electronics has experienced abnormal fluctuations, with a cumulative increase of over 30% in closing prices over three consecutive trading days, indicating potential volatility in trading [1] Group 1: Stock Performance - The company's stock has risen by 102.23% year-to-date, reflecting significant growth [1] - Recent trading activity has shown a notable increase in turnover rate and trading volume, suggesting heightened market interest [1] Group 2: Business Operations - The company has not yet completed the equity transfer with potential counterparties for Xindonglai, indicating ongoing negotiations [1] - Xindonglai's lithography machine business is focused on mature processes and does not involve advanced processes, which may limit its immediate impact on the company's supply risk reduction and domestic equipment application ratio [1] Group 3: Risks and Challenges - The company may face various risks in actual operations, including management and market competition challenges, which could hinder achieving expected investment objectives [1] - There is a potential risk of stock price correction following significant increases, highlighting the need for cautious investment strategies [1]

证券代码：300456 证券简称：赛微电子 公告编号：2025-094 北京赛微电子股份有限公司 股票交易异常波动公告 本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有 虚假记载、误导性陈述或重大遗漏。 一、股票交易异常波动的具体情况 北京赛微电子股份有限公司（以下简称"公司"）股票连续三个交易日内 （2025 年 11 月 19 日、2025 年 11 月 20 日、2025 年 11 月 21 日）日收盘价格涨 幅偏离值累计超过 30%，根据《深圳证券交易所交易规则》的有关规定，属于股 票交易异常波动的情况。 二、公司关注并核实的情况说明 针对公司股票交易异常波动，公司董事会对公司、控股股东、实际控制人就 相关事项进行了核实，现将有关情况说明如下： 1、公司前期披露的信息不存在需要更正、补充之处； 2、公司未发现近期公共传媒报道了与公司相关且市场关注度较高，且公司 未通过公共渠道进行解释说明的信息； 3、近期公司经营情况及内外部经营环境未发生重大变化； 4、公司及控股股东、实际控制人不存在关于本公司的应披露而未披露的重 大事项，或处于筹划阶段的重大事项； 5、公司股票交易异常波动期间，公司控 ...

Market Overview - As of November 21, the Shanghai Composite Index closed at 3834.89 points, down 96.16 points, a decline of 2.45% [1] - The Shenzhen Component Index closed at 12538.07 points, down 442.75 points, a decline of 3.41% [1] - The ChiNext Index closed at 2920.08 points, down 122.26 points, a decline of 4.02% [1] Trading Activity - A total of 91 A-shares had a turnover rate exceeding 20% on this day [1] - Notable stocks with high turnover rates included: - Dapeng Industrial (920091) with a turnover rate of 98.28% and a price increase of 1211.11% [1] - Jianglong Shipbuilding (300589) with a turnover rate of 55.14% and a price increase of 14.50% [1] - C Nanshan Data (301638) with a turnover rate of 52.72% and a price increase of 0.91% [1] Notable Stocks - Other significant stocks with high turnover rates included: - C Hengkun (688727) with a turnover rate of 46.22% and a price decrease of 11.47% [1] - Inspur Software (600756) with a turnover rate of 46.20% and a price increase of 6.76% [1] - ST Dongtong (300379) with a turnover rate of 44.50% and a price increase of 4.15% [1] - Additional stocks with notable performance included: - Shennong Agriculture (300189) with a turnover rate of 42.82% and a price increase of 3.67% [1] - Beifang Changlong (301357) with a turnover rate of 42.52% and a price increase of 0.68% [1]

Group 1 - On November 21, a total of 28 stocks were identified with institutional activity, with 14 stocks showing net buying and 14 stocks showing net selling [1] - The top three stocks with the highest net buying by institutions were Tianhua Xinneng, Saiwei Electronics, and Yidian Tianxia, with net buying amounts of 288 million, 190 million, and 86.43 million respectively [1] - The top three stocks with the highest net selling by institutions were Tibet Chengtou, Vision China, and Longzhou Co., with net outflow amounts of 76.19 million, 66.92 million, and 60.49 million respectively [1]

Group 1: Stock Market Activity - On the institutional trading leaderboard, 39 stocks were listed, with 13 experiencing net buying and 26 facing net selling [1] - The top three stocks with the highest institutional buying were Tianhua Xinneng (397 million), Saiwei Electronics (319 million), and Yidian Tianxia (86.42 million) [1] - Tianhua Xinneng saw a significant decline of 19.71%, while Saiwei Electronics increased by 11.82%, and Yidian Tianxia rose by 19.99% [1] Group 2: Company Developments - Yidian Tianxia received a net purchase of 86.42 million from one institution and has entered into a framework cooperation agreement with Alibaba Cloud to develop the first AI comic drama overseas acceleration engine [2] - Visual China, a provider of visual content and services, has launched a new AI-driven intelligent search engine [3] - Jiuxi Software, a leading report management software provider, has introduced a new generation model application management platform, Nüwa GPT, which offers rapid integration and deployment capabilities [3] Group 3: AI and Video Trends - Google announced an upgrade to its image generation and editing model, Gemini, introducing the Nano Banana Pro model, which aims to enhance precision and control in professional design applications [3] - Tencent's Yuanbao has launched a "one-sentence video generation" feature, allowing users to create videos from a single sentence or image, based on the HunyuanVideo 1.5 model [3] - According to Orient Securities, the next phase of AI video application development will see three trends: deep integration with social interaction, evolution of ChatGPT into an ecosystem, and a one-stop solution for video creation through AI agents [4] Group 4: Military Industry Insights - Jianglong Shipbuilding specializes in public enforcement vessels, leisure boats, and special operation vessels, and has qualified as an equipment manufacturer for the People's Liberation Army [5] - Jiuzhiyang, a subsidiary of China Shipbuilding Industry Corporation, focuses on military applications for surveillance, intelligence gathering, and target detection [5]

Market Overview - The semiconductor sector experienced a decline of 4.49% on November 21, with Aishi Chuang leading the drop [1] - The Shanghai Composite Index closed at 3834.89, down 2.45%, while the Shenzhen Component Index closed at 12538.07, down 3.41% [1] Stock Performance - Notable gainers included: - Saiwei Electronics (300456) with a closing price of 33.49, up 11.82% [1] - Zhuosheng Micro (300782) with a closing price of 69.49, up 0.71% [1] - Significant losers included: - Aishi Chuang (300706) with a closing price of 33.00, down 13.04% [2] - Pudian Co. (688766) with a closing price of 121.97, down 12.96% [2] Capital Flow - The semiconductor sector saw a net outflow of 11.141 billion yuan from institutional investors, while retail investors contributed a net inflow of 7.859 billion yuan [2] - The overall capital flow indicates a mixed sentiment, with institutional investors pulling back while retail investors remained active [2] Individual Stock Capital Flow - Saiwei Electronics (300456) had a net inflow of 391 million yuan from institutional investors, while it faced a net outflow of 76.8 million yuan from speculative funds [3] - Aishi Chuang (300706) experienced a significant net outflow of 471 million yuan from institutional investors [3]

Industry Overview - Recent developments in the photolithography materials sector have been positively influenced by multiple factors, including government support and technological advancements [1] - The National Standardization Management Committee has announced the establishment of the first testing method for extreme ultraviolet (EUV) photoresist, which is expected to support industrialization [1] - The "02 Special Project" continues to invest over 50 billion yuan in key material research, including photoresists [1] - The global high-end ArF and EUV photoresist markets are dominated by foreign companies, with domestic ArF photoresist localization rate below 1% and EUV photoresist still absent, indicating significant replacement potential [1] Company Highlights Guofeng New Materials - The company has completed the trial run of a 38,000-ton high-end functional polypropylene film project, enhancing its technical research and manufacturing capabilities [2] - The acquisition of a 58.33% stake in Jinzhan Technology for 699 million yuan is under review, which will integrate the upstream functional film industry chain for new displays [2] - The stock has seen significant trading activity, with a three-day limit-up and a total turnover rate of 34.87% [2] KMT Gas - The company focuses on electronic specialty gases for photolithography, with its products certified by ASML's subsidiary Cymer, gaining recognition from major international equipment manufacturers [3] - Its photolithography gas products meet advanced industry standards in purity and stability, entering the supply chains of several major domestic wafer fabs [3] - Recent interest in the photolithography sector has led to a net inflow of funds into the company's stock [3] Gaomeng New Materials - The company holds a 3.6698% stake in Beijing Kehua Microelectronics, a key player in the domestic semiconductor photoresist market [4] - It is progressing with a project to produce 124,500 tons of adhesive annually, with some products already passing customer tests [4] - The company's diverse business across multiple sectors has increased market discussion and interest [4] Saiwei Electronics - The company specializes in MEMS core processes, holding key technologies such as silicon through-silicon vias and wafer bonding [5] - Its MEMS products have competitive advantages in precision manufacturing and stability, aligning with the photolithography supply chain needs [5] - The construction of 8-inch and 12-inch MEMS production lines in Beijing is ongoing, with capacity gradually being realized [5]

Core Insights - The A-share market's photoresist concept stocks are experiencing a counter-trend rise, with notable increases in stock prices for several companies ahead of a key industry conference [1] Group 1: Stock Performance - Gao Meng New Materials saw a rise of over 13%, while Sai Microelectronics increased by over 11% [1] - Other companies such as Guofeng New Materials and Kaimete Gas reached the daily limit increase of 10%, with Huasoft Technology rising over 7% [1] - Shanghai Xinyang, Huate Gas, Jiaxian Co., Tongcheng New Materials, and Nanda Optoelectronics all experienced increases of over 4% [1] Group 2: Market Context - The "2025 Photoresist and Integrated Circuit Materials Advanced Technology and Industry Application Seminar" is scheduled to take place on November 20-21, with the theme "Photoresist Breakthrough, Material Gathering in Shaoxing" [1]

CPO概念盘中局部回暖，赛微电子涨超10%，德科立、腾景科技、中富电路、光库科技等跟涨。 ...