江苏南大光电材料股份有限公司 关于召开 2025 年第五次临时股东会的通知 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。 根据江苏南大光电材料股份有限公司（以下简称"公司"）第九届董事会第十四次会 议决议，决定于 2025 年 11 月 14 日 14:30 召开公司 2025 年第五次临时股东会，现将本次 股东会有关事项通知如下： 一、召开会议的基本情况 证券代码：300346 证券简称：南大光电 公告编号：2025-067 1、股东会届次：2025 年第五次临时股东会 2、股东会的召集人：董事会 3、本次会议的召集、召开符合《中华人民共和国公司法》《深圳证券交易所创业板股 票上市规则》《深圳证券交易所上市公司自律监管指引第 2 号—创业板上市公司规范运作》 等法律、行政法规、部门规章、规范性文件及《公司章程》的有关规定。 4、会议时间： （1）现场会议时间：2025 年 11 月 14 日 14:30 （2）网络投票时间：通过深圳证券交易所系统进行网络投票的具体时间为 2025 年 11 月 14 日 9:15-9:25，9:30-11:30，13:00 ...

一、审议通过《关于<2025年第三季度报告>的议案》 《2025年第三季度报告》的内容详见中国证监会指定创业板信息披露网站巨潮资讯 网(www.cninfo.com.cn)。 本议案已经公司董事会审计委员会2025年第四次会议审议通过。审计委员会认为： 公司《2025年第三季度报告》的编制和审核程序符合法律、行政法规和中国证监会的规 定，报告内容真实、准确、完整地反映了公司2025年第三季度经营的实际情况，不存在 虚假记载、误导性陈述或者重大遗漏。 证券代码：300346 证券简称：南大光电 公告编号：2025-058 江苏南大光电材料股份有限公司 第九届董事会第十四次会议决议公告 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。 江苏南大光电材料股份有限公司（以下简称"公司"）于2025年10月22日以电话、 邮件、专人送达等方式，向公司全体董事发出关于召开公司第九届董事会第十四次会议 的通知，并于2025年10月27日以现场方式在公司会议室召开。应参加董事9人，实参加 董事9人。公司高级管理人员列席了会议，符合《中华人民共和国公司法》及《江苏南 大光电材料股 ...

中信建投证券股份有限公司 关于江苏南大光电材料股份有限公司 变更部分募集资金用途的核查意见 | 序号 | | 项目名称 | 总投资额 | 拟使用募集 | 调整后拟投 | | --- | --- | --- | --- | --- | --- | | | | | | 资金额 | 入募集资金 | | 1 | 年产 45 产品产业化项目 | 吨半导体先进制程用前驱体 | 11,000.00 | 7,000.00 | 7,000.00 | | 2 | 年产 吨高纯磷烷、砷烷扩产及砷 140 烷技改项目 | | 10,000.00 | 8,000.00 | 8,000.00 | | --- | --- | --- | --- | --- | --- | | 3 | | 乌兰察布南大微电子材料有限公司年 | 100,000.00 | 50,000.00 | 50,000.00 | | | 产 7200 | 吨电子级三氟化氮项目 | | | | | 4 | 补充流动资金 | | 25,000.00 | 25,000.00 | 23,797.95 | | | 合计 | | 146,000.00 | 90,000.00 | 8 ...

Financial Performance - The company's revenue for Q3 2025 reached ¥655,408,204.43, representing a year-over-year increase of 2.20%[3] - Net profit attributable to shareholders was ¥92,972,105.85, up 6.97% compared to the same period last year[3] - The net profit excluding non-recurring gains and losses was ¥66,466,188.37, reflecting a significant increase of 17.51% year-over-year[3] - Total operating revenue for the current period reached ¥1,884,280,819.77, an increase of 6.8% compared to ¥1,763,818,418.49 in the previous period[22] - Net profit for the current period was ¥375,464,796.38, compared to ¥361,668,641.93 in the previous period, indicating a growth of 3.2%[23] - The net profit attributable to shareholders of the parent company was ¥300,786,187.19, an increase from ¥265,608,303.02, representing a growth of 13.2%[23] Assets and Liabilities - Total assets at the end of the reporting period were ¥6,274,194,976.75, a decrease of 3.33% from the end of the previous year[3] - Total assets decreased to ¥6,274,194,976.75 from ¥6,489,990,515.41, a decline of 3.3%[21] - Total liabilities decreased to ¥2,340,348,703.99 from ¥2,492,879,639.94, a reduction of 6.1%[20] - The company's equity attributable to shareholders increased to ¥3,441,379,534.62 from ¥3,399,095,442.21, reflecting a growth of 1.2%[21] Cash Flow - Cash flow from operating activities for the year-to-date was ¥625,603,737.83, an increase of 7.06%[3] - Operating cash flow for the current period was CNY 625,603,737.83, an increase of 7.3% compared to CNY 584,370,379.83 in the previous period[26] - Total cash inflow from operating activities reached CNY 2,057,142,346.75, up from CNY 1,938,397,461.27, reflecting a growth of 6.1%[26] - Cash outflow from investing activities was CNY 3,693,129,208.31, compared to CNY 2,768,886,267.74 in the previous period, indicating a significant increase of 33.3%[26] - Net cash flow from investing activities was negative at CNY -134,588,904.57, an improvement from CNY -1,436,213,415.35 in the previous period[26] - Cash inflow from financing activities totaled CNY 429,123,664.75, an increase of 57.0% from CNY 273,629,581.28[27] - The net cash flow from financing activities was CNY -344,226,402.03, worsening from CNY -44,564,876.73 in the previous period[27] - The ending cash and cash equivalents balance was CNY 610,383,400.32, up from CNY 486,586,573.87, reflecting an increase of 25.4%[27] Shareholder Information - Total number of common shareholders at the end of the reporting period is 130,201[14] - The top 10 shareholders hold a combined total of 80,892,542 shares, representing 11.70% of the company's total share capital[15] - The company plans to distribute a cash dividend of 1.00 RMB per 10 shares and increase capital by 2 shares for every 10 shares held, effective May 9, 2025[16] - The company has 32,315,868 shares under lock-up for the shareholder Zhang Xingguo, which will be released according to the lock-up schedule[16] - The company has no known relationships or concerted actions among the other shareholders beyond the identified parties[15] Investment and Expenses - Financial expenses decreased by 60.64% to ¥14,249,237.48, primarily due to the cessation of convertible bond interest accrual[10] - Investment income surged by 113.94% to ¥55,419,289.26, mainly from gains on the disposal of trading financial assets[10] - Research and development expenses were ¥146,834,895.15, down from ¥160,338,200.58, a decrease of 8.4%[22] - The company reported an investment income of ¥55,419,289.26, significantly higher than ¥25,904,522.23 in the previous period, marking an increase of 114.5%[23] Inventory and Receivables - The company reported a significant increase in prepayments by 62.91% to ¥37,615,601.88, attributed to increased inventory procurement[7] - Cash received from investment activities was CNY 3,558,540,303.74, a substantial rise from CNY 1,332,672,852.39, marking an increase of 167.0%[26] - Accounts receivable at the end of the reporting period stand at 609,326,600.24 RMB, compared to 589,412,885.66 RMB at the beginning[18] - Inventory at the end of the reporting period is 839,858,360.22 RMB, an increase from 722,381,706.82 RMB[18]

Core Viewpoint - The company Nanda Optoelectronics (300346.SZ) has successfully achieved over ten million in sales revenue from ArF photoresist last year, and is making progress with multiple products in testing with key customers this year [1]. Group 1 - The company received multiple inquiries regarding the mass production and validation status of photoresist, indicating investor interest and concern [1]. - Nanda Optoelectronics confirmed that several products are undergoing successful testing with key customers, suggesting a positive outlook for future sales [1]. - The company maintains a continuous and stable supply of products for previously secured orders, indicating operational reliability [1].

Group 1 - The semiconductor equipment ETF (561980) has seen a significant increase, rising by 3.26% with a trading volume of 252 million as of 13:50 [1] - Notable gains in constituent stocks include a more than 16% increase in the photoresist stock Jingrui Electric Materials, over 7% in Aisen Co. and Jinhaitong, and a 6.06% rise in Nanda Optoelectronics [1] - Equipment manufacturers such as Tuojing Technology rose over 8%, while Zhongke Feicai and Zhongwei Company increased by over 4%, and Beifang Huachuang rose by 3.42% [1] Group 2 - A significant breakthrough has been achieved in China's photoresist field, with a team from Peking University using cryo-electron tomography to analyze the micro three-dimensional structure of photoresist molecules in liquid phase, leading to a new industrialization scheme that significantly reduces photoresist defects [3] - Semiconductor materials are essential in the manufacturing of integrated circuits, discrete devices, sensors, and optoelectronic devices, forming the basis of semiconductor manufacturing processes [3] - According to TECHCET data, the semiconductor manufacturing materials market is expected to grow nearly 8% year-on-year by 2025, with an annual compound growth rate (CAGR) of 5.6% from 2023 to 2028, potentially exceeding 84 billion by 2028 [3] - The semiconductor equipment ETF (561980) tracks the CSI semiconductor index, with approximately 70% weight in "semiconductor equipment + materials," and has reported a net value growth rate of 61.46% over the past six months and 89.26% over the past year [3]

Core Viewpoint - The semiconductor sector is experiencing a significant boost due to breakthroughs in photoresist technology, leading to strong stock performance among related companies and ETFs [1][4]. Group 1: Stock Performance - Jingrui Electric Materials opened strongly and hit the upper limit, while Nanda Optoelectronics and Aisen Co. saw gains exceeding 12% [1]. - The semiconductor equipment ETF (561980) rose by 2.47%, with a peak increase of over 3%, and recorded a trading volume of 110 million yuan [1]. - Over the past ten trading days, the ETF has seen a cumulative net inflow of 294 million yuan, bringing its latest scale to 2.626 billion yuan, with a year-to-date index increase of 61.31% [1]. Group 2: Company Developments - The research team led by Professor Peng Hailin from Peking University has made advancements in understanding the micro-3D structure of photoresist molecules, which could significantly reduce lithography defects [4]. - Domestic GPU manufacturer Muxi Co. has received approval for its IPO on the Sci-Tech Innovation Board, indicating a positive trend for domestic computing power companies [4]. - Muxi is negotiating customer orders estimated at 2.004 billion yuan, with over 1.7 billion yuan in AI computing projects, while Muxi has an order backlog of 1.43 billion yuan [5]. Group 3: ETF Performance and Holdings - The semiconductor equipment ETF (561980) reported a net asset growth rate of 89.26% over the past year, with a 61.46% increase over the last six months [7]. - The ETF tracks the CSI Semiconductor Index, with top holdings including Zhongwei Company (15.01%), Beifang Huachuang (12.70%), and Cambrian (10.56%), collectively accounting for over 78% of the portfolio [9][10]. - The index is heavily weighted towards semiconductor equipment, materials, and digital chip design, which are expected to benefit from the push for self-sufficiency in the semiconductor industry [9]. Group 4: Financial Performance of Component Stocks - Companies like Haiguang Information and Cambrian reported significant year-on-year growth in both revenue and net profit for the first three quarters [11]. - Jingrui Electric Materials achieved a staggering 192-fold increase in net profit year-on-year, highlighting the strong performance of semiconductor-related firms [12]. - Other component stocks such as Jianghua Micro and Aisen Co. also reported positive revenue and net profit growth, indicating a robust sector performance [12]. Group 5: Market Outlook - Analysts from Huaxi Securities and Galaxy Securities express optimism about the continued growth of the technology sector, driven by advancements in AI and high-performance computing chip demand [6][13]. - The stability of key chip and material supplies is critical, making the establishment of a self-sufficient semiconductor supply chain a necessity rather than an option [13].

Core Viewpoint - The significant rise in the photoresist sector is driven by the establishment of China's first EUV photoresist standard and recent breakthroughs in photoresist technology, indicating a positive outlook for the industry [1][2]. Group 1: Market Performance - The photoresist concept saw a substantial increase on the 27th, with companies like Jingrui Electric Materials hitting a 20% limit up, and others such as Canaan Technology and Nanda Optoelectronics rising over 13% [1]. - The market for photoresists in China is projected to grow to over 11.4 billion yuan in 2024 and reach 12.3 billion yuan by 2025 [2]. Group 2: Technological Advancements - A team led by Professor Peng Hailin from Peking University has achieved a breakthrough by using cryo-electron tomography to analyze the micro-3D structure and entanglement behavior of photoresist molecules in a liquid phase, which can guide the development of industrial solutions to reduce photoresist defects [1][2]. - The new standard for EUV photoresists, titled "Testing Methods for Extreme Ultraviolet (EUV) Photoresists," was publicly announced on October 23, with a deadline for comments set for November 22 [1]. Group 3: Industry Implications - The advancements in photoresist technology are expected to benefit the entire semiconductor supply chain, including upstream material suppliers, equipment manufacturers, midstream photoresist producers, and downstream application companies [2].

Core Viewpoint - The A-share market has seen a significant rally in photoresist concept stocks, driven by recent breakthroughs in the photoresist field in China [1][2]. Group 1: Stock Performance - Jingrui Electric Materials (300655) surged over 17%, with a market capitalization of 18.9 billion and a year-to-date increase of 89.04% [2]. - Jinhua New Materials (920015) rose more than 14%, with a market cap of 7.32 billion and a year-to-date increase of 43.67% [2]. - Other notable performers include Jiashan Co. (920489) and Wanyun Co. (002643), both increasing over 10% [1][2]. Group 2: Industry Breakthrough - A research team led by Professor Peng Hailin from Peking University has achieved a breakthrough in the photoresist field by using cryo-electron tomography to analyze the micro-3D structure of photoresist molecules in a liquid phase environment [2]. - This research guides the development of an industrialization plan that significantly reduces photoresist defects [2].

Group 1 - Major stock indices opened higher, with significant gains in sectors such as photoresists, storage chips, and computing hardware. The CSI Chip Industry Index rose by 1.9%, with notable increases in stocks like Nanda Optoelectronics (over 11%) and Tuojing Technology (over 7%) [1] - The Chip ETF Tianhong (159310) opened with a gain of 2.12%, with a current circulation of 628 million shares and a market size of 1.367 billion [1] - The Computer ETF (159998) opened up by 1.12%, with a net inflow of 19.0664 million on the previous trading day, and a total circulation of 2.701 billion shares, amounting to 2.884 billion in market size [1] Group 2 - The "super cycle" for storage chips continues, with major suppliers like Samsung and SK Hynix expected to raise prices by up to 30% for DRAM and NAND products in Q4 [2] - The Computer ETF (159998) is aligned with the hard technology sector, covering various sub-sectors such as software, hardware, and cloud computing, with a total size exceeding 2.8 billion, making it the largest in its category [2] - AI demand is driving growth in storage needs, with expectations of continued price increases in the storage sector through Q4 2025 due to supply constraints, despite some skepticism regarding actual demand levels [2] Group 3 - External disturbances have eased, and the third-quarter earnings reports are expected to validate the growth consensus in the technology sector, making it a crucial window for assessing new momentum [3] - The market's "rebalancing" phase is gradually addressing the cost-performance issues of growth advantages, which may refocus attention on the core strengths of the technology sector [3]