Summary of Semiconductor Testing Equipment Conference Call Industry Overview - The conference call focuses on the semiconductor testing equipment industry, particularly in relation to AI chip development and advanced packaging technologies [1][3]. Key Points and Arguments 1. **AI Chip Development Impact**: The rapid development of AI chips is driving demand for advanced packaging technologies such as HBM (High Bandwidth Memory) and CoWoS (Chip on Wafer on Substrate), creating opportunities for domestic equipment manufacturers [1][3]. 2. **Increased Complexity in Testing**: The complexity of SoC (System on Chip) and storage devices is increasing, leading to a significant rise in demand for testing machines. The market share for SoC testing equipment rose to 60% in 2022, while storage devices dropped to 20% [1][13]. 3. **Advanced Packaging Equipment Demand**: The shift towards HBM and CoWoS as mainstream packaging solutions is expected to increase the demand for advanced packaging equipment [1][8]. 4. **Market Share Dynamics**: In 2022, the combined market share of SoC and storage testing equipment reached 80%, highlighting the close relationship between AI chip development and testing equipment demand [1][13]. 5. **Testing Process Complexity**: HBM testing involves complex processes, including wafer-level testing of DRAM and logic chips, which increases requirements for equipment precision and current-carrying capacity [1][19]. 6. **Key Equipment in Advanced Packaging**: Die Bond machines, bonding machines, and dicing machines are critical in the advanced packaging process, accounting for 30%, 23%, and 30% of the workflow respectively [1][25]. Additional Important Insights 1. **Domestic Companies to Watch**: Companies such as Huafeng Measurement & Control, Changchuan Technology, and Maiwei Co. are highlighted as key players in the context of growing high-process demand [2][32]. 2. **Testing Equipment Pricing**: The price range for storage testing machines is approximately $1 million to $3 million, with a low domestic production rate [10]. 3. **Market Competitors**: In the global market, Advantest holds about 60% of the market share for SoC and storage testing machines, followed by Teradyne with around 30% [23]. 4. **Technological Evolution**: The testing process for semiconductor chips has evolved significantly from 2010 to 2020, necessitating new testing equipment due to increased transistor counts and complexity [17]. 5. **Investment Logic for Domestic Computing Power**: The investment logic focuses on the growth of testing machine demand due to the increasing complexity of SoC and storage devices, as well as the rising need for advanced packaging equipment [8][9]. This summary encapsulates the critical insights from the conference call, emphasizing the impact of AI chip development on the semiconductor testing equipment industry and the opportunities for domestic manufacturers.

Core Viewpoint - The semiconductor equipment sector has experienced a significant surge, driven by AI demand, making it a standout performer in the A-share market, although a recent pullback raises questions about future performance [1][5]. Group 1: Recent Performance - From September 10 to September 24, the semiconductor equipment index surged over 33%, ranking first among 276 sub-industries [2]. - On September 22 to 24, the index saw a cumulative increase of 16.85%, with several ETFs reaching daily limits [1][2]. - As of September 25, the semiconductor equipment index had risen 31.81% in the past half month and 51.57% over three months, with a year-to-date increase of 58.73% [5]. Group 2: Driving Factors - Key factors for the recent performance include the establishment of Changcun Phase III, which is expected to enhance domestic semiconductor equipment production capacity [2]. - Rising prices of memory chips are anticipated to drive global production expansion [2]. - The recent display of lithography machines at the Industrial Expo has positively influenced market sentiment [2]. Group 3: Market Sentiment and Future Outlook - The semiconductor equipment sector is viewed as a critical area for institutional investment in Q4, with current valuations still considered relatively low [4]. - Analysts believe the recent pullback is a rational correction after a rapid increase, rather than a trend reversal [6][4]. - The long-term growth trajectory of the semiconductor equipment sector remains clear, supported by increasing domestic production rates and capital expenditure expansion [6][5]. Group 4: Investment Opportunities - There is a focus on high-performance testing machines, advanced packaging equipment, and etching equipment as areas of potential growth [7][8]. - The demand for testing equipment related to AI chips and advanced storage technologies is expected to rise significantly [8]. - Companies with core technologies in the semiconductor equipment sector are recommended for investment, particularly those involved in technological breakthroughs and downstream expansion [8][7].

关 于 国浩律师（杭州）事务所 杭州长川科技股份有限公司 2025 年第二次临时股东大会之 法律意见书 地址：杭州市上城区老复兴路白塔公园 B 区 2 号、15 号国浩律师楼 邮编：310008 Grandall Building, No.2 ＆ No.15, Block B, Baita Park, Old Fuxing Road, Hangzhou, Zhejiang 310008, China 电话/Tel: (+86)(571) 8577 5888 传真/Fax: (+86)(571) 8577 5643 电子邮箱/Mail：grandallhz@grandall.com.cn 网址/Website：http://www.grandall.com.cn 二〇二五年九月 国浩律师（杭州）事务所 长川科技 2025 年第二次临时股东大会法律意见书 国浩律师（杭州）事务所 关 于 杭州长川科技股份有限公司 2025 年第二次临时股东大会之 法律意见书 致：杭州长川科技股份有限公司 国浩律师（杭州）事务所（以下简称"本所"）接受杭州长川科技股份有限 公司（以下简称"公司"）委托，指派律师出席公司 2025 年 ...

证券代码：300604 证券简称：长川科技 公告编号：2025-068 杭州长川科技股份有限公司 2025 年第二次临时股东大会决议的公告 本公司及董事会全体成员保证公告内容真实、准确和完整，没有虚假记载、 误导性陈述或重大遗漏。 特别提示： 1、本次股东大会无增加、变更、否决提案的情况； 2、本次股东大会以现场投票和网络投票相结合的方式召开。 一、会议召开情况 杭州长川科技股份有限公司（以下简称"公司"）2025 年第二次临时股东 大会于 2025 年 9 月 25 日下午 14:30 在浙江省杭州市滨江区创智街 500 号杭州 长川科技股份有限公司召开，本次会议采取现场投票与网络投票结合的表决方式。 其中： 本次股东大会采取现场表决与网络投票相结合的方式 （1）现场会议召开时间：2025 年 9 月 25 日（星期四）下午 14:30； （2）网络投票时间：2025 年 9 月 25 日（星期四）； 其中，通过深圳证券交易所交易系统进行网络投票的时间为 2025 年 9 月 25 日（星期四）9:15-9:25，9:30-11:30 和 13:00-15:00；通过深圳证券交易所互 联网投票系统投票的具体 ...

Volatility - A total of 9 stocks in the A-share market experienced a volatility exceeding 20% today [1] - N Jianfa's volatility reached 205.67%, with N Jinhua and N United Power also showing significant fluctuations [1] Turnover Rate - There were 23 stocks in the A-share market with a turnover rate exceeding 30% today [1] - N Jinhua, N Jianfa, and N United Power had the highest turnover rates [1] Main Capital Flow - Main capital today saw a net inflow into sectors such as computers, electrical equipment, media, telecommunications, and non-ferrous metals, while experiencing net outflows from electronics, machinery, basic chemicals, home appliances, and national defense industries [1] - The stocks with the largest net inflows included Inspur Information (17.77 billion), New Yisheng (12.83 billion), Huagong Technology (11.73 billion), CATL (11.15 billion), and C United Power (10.66 billion) [1] - The stocks with the largest net outflows included Shenghong Technology (16.20 billion), Heertai (9.29 billion), Xian Dao Intelligent (7.80 billion), Changchuan Technology (7.49 billion), and Luxshare Precision (7.43 billion) [1]

格隆汇9月25日｜长川科技（维权）(300604.SZ)今日开盘后一度上冲至99.5元，股价创历史新高，年内累涨超1.2倍；后股价快速回落，一度跌4.07%至92.4 元。长川科技昨日晚间公告称，公司股票交易价格连续两个交易日内收盘价格涨幅偏离值累计超过30%，属于股票交易异常波动情况。公司目前生产经营正 常，内外部环境未发生重大变化。 同时公告，公司获悉其于2025年8月25日至2025年9月24日通过集中竞价及大宗交易方式合计减持其持有的公司股份数量比例已达到公司总股本的1.00%，且 本次减持计划已实施完成。截至该告知函出具之日，长川投资累计减持其所持有的公司股份合计1122万股，占公司总股本的1.7796%。长川投资本次减持股 份总数未超过减持计划约定的股数。(格隆汇) ...

长川科技9月23日及24日均涨停，涨幅均为20%。长川科技在9月23日及24日通过集中竞价交易减持 了151,400股，通过大宗交易共计减持5,033,277股。长川科技在9月23日及24日共计套现3.92亿元。 | 股东名称 | 减持 | 减持 | 减持均价 | 减持数量 | 减持数量占 公司总股本 | | --- | --- | --- | --- | --- | --- | | | 方式 | 日期 | (元/股) | (股) | | | | | | | | 比例 | | | | | 2025/8/25 | 51. 31 | 2, 400, 000 | 0. 3807% | | --- | --- | --- | --- | --- | --- | --- | | | 集中竞价 | | 2025/8/26 | 50. 94 | 1, 912, 000 | 0. 3033% | | 杭州长川投 资管理合伙 企业(有限合 | | | 2025/8/27 | 59. 59 | 1, 723, 300 | 0. 2733% | | 伙) | | | 2025/9/24 | 96. 32 | 151, 400 | ...

Core Viewpoint - Five companies listed on the ChiNext board have announced their performance forecasts for the first three quarters, all indicating an increase in profits [1] Group 1: Company Performance Forecasts - Changchuan Technology (300604) expects a net profit increase of 138.39% with a latest closing price of 96.32 yuan and a year-to-date increase of 118.75% [1] - Zhongtai Co., Ltd. (300435) anticipates a net profit increase of 79.28%, with a latest closing price of 21.85 yuan and a year-to-date increase of 83.52% [1] - N United (301656) forecasts a net profit increase of 44.16% [1] - N Jianda (301584) projects a net profit increase of 35.00% [1] - Aifen Dazhi (301575) expects a net profit increase of 14.72%, with a latest closing price of 55.40 yuan and a year-to-date decrease of 25.91% [1] Group 2: Industry Insights - The companies span various industries, including electronics, public utilities, automotive, pharmaceuticals, and light manufacturing [1]

Group 1 - On September 24, among the 31 first-level industries tracked by Shenwan, 17 industries experienced net financing inflows, with the electronics industry leading at a net inflow of 11.095 billion yuan [1] - Other industries with significant net financing inflows included power equipment, machinery, real estate, media, and communication, each exceeding 400 million yuan in net inflow [1] Group 2 - A total of 1,729 individual stocks received net financing inflows on September 24, with 148 stocks having inflows exceeding 50 million yuan [1] - Among these, 14 stocks had net financing inflows exceeding 300 million yuan, with Luxshare Precision leading at 1.461 billion yuan [1] - Other notable stocks with high net financing inflows included SMIC, Haiguang Information, CATL, NewEase, Zhangjiang Hi-Tech, Changchuan Technology, Zhaoyi Innovation, and Sungrow Power [1]

Core Viewpoint - Longchuan Technology (300604) has experienced significant stock price increases, with a cumulative rise of 44% over two trading days, attributed to strong market demand in the semiconductor equipment industry and positive earnings forecasts [2][3][7]. Group 1: Stock Performance - On September 23 and 24, Longchuan Technology's stock price surged by 20% each day, reaching a new high of 96.32 yuan per share, resulting in a market capitalization exceeding 600 billion yuan [2][3]. - The stock's performance is linked to the broader trend of rising stock prices among A-share companies in the semiconductor equipment sector [6]. Group 2: Shareholder Actions - Longchuan Investment, a significant shareholder, announced plans to reduce its stake by up to 1.7796% of the total share capital, amounting to a maximum of 11.22 million shares [5][6]. - The reduction was executed through block trades and centralized bidding, with shares sold at prices of 69 yuan, 80 yuan, and 96.32 yuan per share on different dates [6]. Group 3: Financial Performance - Longchuan Technology's earnings forecast indicates a projected net profit of 827 million to 877 million yuan for the first three quarters of 2025, representing a year-on-year growth of 131.39% to 145.38% [7]. - The third quarter alone is expected to yield a net profit of 400 million to 450 million yuan, reflecting a substantial increase of 180.67% to 215.75% compared to the previous year [7]. - The company attributes this growth to sustained demand in the semiconductor industry, resulting in a significant increase in sales revenue and product orders [7].