证券代码：300346 证券简称：南大光电 公告编号：2025-070 江苏南大光电材料股份有限公司 关于对外担保额度预计的进展公告 本公司及董事会全体成员保证公告内容的真实、准确和完整，没 有虚假记载、误导性陈述或重大遗漏。 一、担保额度预计的情况概述 江苏南大光电材料股份有限公司（以下简称"公司"）于 2025 年 4 月 1 日召开 第九届董事会第十一次会议，2025 年 4 月 24 日召开 2024 年度股东大会，审议通过 了《关于向金融机构申请综合授信额度及对控股子公司担保额度预计的议案》，同意 公司及全资、控股子公司向银行等金融机构申请综合授信，总额不超过人民币 15 亿元, 上述融资可以公司及子公司的自有资产进行抵押、质押担保。同时，同意公 司及子公司为合并报表范围内的子公司就上述综合授信额度内的融资提供总计不超 过人民币 7 亿元的担保额度。股东会授权公司管理层在不超过已审批担保总额度的 情况下，可根据实际经营情况适度调整各子公司（含授权期限内新设立或纳入合并 范围的子公司）的担保额度。 具体内容详见公司刊登在中国证监会指定创业板信息披露网站的《关于向金融 机构申请综合授信额度及对控股子公司 ...

Group 1 - The core viewpoint of the article is that Nanda Optoelectronics (300346.SZ) expects its ArF photoresist revenue to exceed 10 million in 2024 and aims to maintain stable supply in 2025, indicating strong growth potential in the semiconductor materials sector [1] Group 2 - The company has stated that it is currently not operating at full capacity, suggesting room for increased production and revenue growth in the future [1]

Group 1 - The core viewpoint of the article is that Nanda Optoelectronics (300346.SZ) is focusing on the development and stability of its ArF photoresist products, which currently contribute minimally to the company's overall performance [2] - In 2024, the company expects its ArF photoresist revenue to exceed 10 million [2] - The company plans to maintain stable supply of ArF photoresist in 2025 [2]

Group 1 - The company has confirmed that its ArF photoresist orders of 50 tons per year are not yet at full production capacity [2] - The company anticipates that its revenue from ArF photoresist will exceed 10 million in 2024 and will maintain stable supply in 2025 [2] - There has been an inquiry regarding whether the supply price for ArF photoresist has increased, but the company did not provide a specific response on this matter [2]

Group 1 - The core viewpoint of the article revolves around the potential impact of stricter export approvals for photoresists from Japan on leading companies in the sector, such as Strongly New Materials and Jiu Ri New Materials [1] - The company, Nanda Optoelectronics, focuses on the research and industrialization of mid-to-high-end photoresists, specifically ArF and KrF photoresists, and is currently concentrating on product validation and process stability [1] - The core raw materials for the company's products are developed in-house, indicating a level of self-sufficiency in their supply chain [1]

Group 1 - The fluorochemical sector experienced a decline of 1.61%, ranking among the top losers in concept sectors, with major declines seen in companies like Hongyuan Pharmaceutical, Duofluoride, and Shenzhen New Star [1] - The top gainers in the fluorochemical sector included Hainan Mining, Shangwei Co., and Ankao Intelligent Electric, with respective increases of 3.09%, 3.06%, and 1.36% [1] - The overall market saw significant net outflows from the fluorochemical sector, totaling 4.951 billion yuan, with 50 stocks experiencing net outflows, and 10 stocks seeing outflows exceeding 100 million yuan [1] Group 2 - Duofluoride led the net outflow with 1.114 billion yuan, followed by Tianji Co., Tianqi Materials, and Nanda Optoelectronics with outflows of 1.045 billion yuan, 565 million yuan, and 382 million yuan respectively [1] - The stocks with the highest net inflows included Yuntianhua, Huabang Health, and Zhongmi Holdings, with net inflows of 123 million yuan, 2.05 million yuan, and 800,900 yuan respectively [1] - The fluorochemical sector's outflow leaderboard featured Duofluoride with a decline of 8.06%, Tianji Co. with a slight increase of 0.40%, and Tianqi Materials with a decrease of 3.80% [2]

Group 1 - The Shanghai Composite Index opened lower but rose to challenge a nine-day winning streak, with strength in computing chip sectors. The semiconductor equipment ETF (561980) increased by 0.29%, with stocks like Cambricon and Liandong Technology rising over 4% [1] - The semiconductor equipment ETF (561980) has seen continuous capital inflow, with over 47 million yuan net inflow for two consecutive trading days [1] - According to a report by Chengtong Securities, semiconductor investments driven by AI should focus on two main lines: high-end logic chips and memory (HBM) that directly benefit from the surge in computing demand, and opportunities for domestic substitution in the semiconductor equipment sector [1] Group 2 - The storage market is experiencing price increases, with NAND flash wafer prices rising over 10% in December, and SSD prices increasing by 15% to 20%. Major suppliers like Samsung and SK Hynix have raised HBM3E prices by nearly 20% for 2026 [2] - Foundries are also raising prices, with SMIC implementing price increases of about 10% on some capacities [3] - The duration and magnitude of the storage price increase cycle have exceeded expectations, with projections for accelerated growth in domestic semiconductor equipment orders by 2026 due to AI demand driving global storage and advanced process capacity expansion [4] Group 3 - The global semiconductor equipment market is expected to grow significantly, with total sales projected to reach $133 billion by 2025, a 13.7% increase year-on-year, and further growth anticipated in the following years [5] - The domestic semiconductor equipment industry is seeing improvements in process coverage and market share, with domestic rates exceeding 50% in certain areas like etching and cleaning, while core high-end segments remain below 10%, indicating substantial room for domestic substitution [7] Group 4 - The semiconductor equipment ETF (561980) tracks the CSI semiconductor index, with nearly 60% of its components in "equipment" and over 90% in upstream sectors of the chip industry, highlighting significant domestic substitution potential [11] - The index focuses on leading companies in the sector, with the top ten holdings accounting for nearly 80% of the index, showing high elasticity characteristics. As of December 24, the CSI semiconductor index has seen a year-to-date increase of over 63% [11]

Core Viewpoint - Nanda Optoelectronics has shown a significant stock price increase of 47.14% year-to-date, with a recent trading volume indicating active market participation, despite a slight decline in the last five trading days [1] Group 1: Stock Performance - As of December 24, Nanda Optoelectronics' stock price rose by 2.29% to 46.93 CNY per share, with a trading volume of 1.807 billion CNY and a turnover rate of 6.02%, resulting in a total market capitalization of 32.436 billion CNY [1] - The stock has experienced a 0.61% decline over the last five trading days, but has increased by 20.30% over the past 20 days and 22.95% over the last 60 days [1] Group 2: Financial Performance - For the period from January to September 2025, Nanda Optoelectronics reported a revenue of 1.884 billion CNY, reflecting a year-on-year growth of 6.83%, and a net profit attributable to shareholders of 301 million CNY, which is a 13.24% increase compared to the previous year [2] Group 3: Shareholder Information - As of November 30, the number of shareholders for Nanda Optoelectronics reached 123,300, an increase of 4.56% from the previous period, while the average number of tradable shares per shareholder decreased by 4.36% to 5,321 shares [2] - The company has distributed a total of 507 million CNY in dividends since its A-share listing, with 293 million CNY distributed over the last three years [3] Group 4: Institutional Holdings - As of September 30, 2025, notable institutional shareholders include E Fund's ChiNext ETF, holding 12.5014 million shares, and Southern CSI 500 ETF, holding 10.0607 million shares, both of which have seen a reduction in holdings [3] - New institutional shareholders include Guotai Junan's semiconductor materials and equipment theme ETF, holding 7.2704 million shares, and Guolian An's semiconductor ETF, holding 4.7250 million shares [3]

Core Viewpoint - The semiconductor industry is experiencing significant growth driven by advancements in AI and related technologies, with a notable increase in demand for semiconductor manufacturing equipment and storage solutions [1][2][9]. Industry Performance - Major indices showed upward movement, with the semiconductor equipment ETF rising by 4.22%, reaching a scale of 2.454 billion yuan, and several component stocks hitting new highs [1]. - The global semiconductor manufacturing equipment sales are projected to reach $133 billion in 2025, marking a 13.7% year-on-year increase, with further growth expected in 2026 and 2027 [9][10]. Technological Advancements - Researchers at Shanghai Jiao Tong University have achieved a breakthrough in optical computing chips, creating the "Light" chip that supports large-scale semantic media generation models, positioning China as a leader in the optical chip sector [5]. - The demand for high-bandwidth memory (HBM) is expected to rise significantly due to AI deployment and ongoing technological migration, leading to increased capital expenditure in the memory sector [1][2]. Market Trends - The prices of embedded NAND and DRAM are forecasted to increase by 30% and 45% respectively in Q4, with further substantial increases anticipated in Q1 [7]. - The global semiconductor sales are expected to reach $772.2 billion in 2025, reflecting a 22.5% year-on-year growth, with an upward revision for 2026 to $975.4 billion, indicating a 26.3% increase [8]. Investment Opportunities - The semiconductor equipment sector is seen as a cornerstone of the semiconductor industry, with significant potential for domestic substitution and growth driven by AI-related investments [2][3]. - Companies with strong positions in storage equipment are expected to benefit from the ongoing expansion of advanced storage and logic production capacities [17].

Group 1 - The photoresist concept sector rose by 2.91%, ranking 10th among concept sectors, with 62 stocks increasing in value, including Xingye Co., which hit the daily limit, and Aisen Co., Andar Intelligent, and Shanghai Xinyang, which rose by 18.65%, 17.61%, and 15.88% respectively [1][2] - The photoresist sector saw a net inflow of 1.524 billion yuan from main funds, with 46 stocks receiving net inflows, and 8 stocks exceeding 50 million yuan in net inflow. Dongcai Technology led with a net inflow of 557 million yuan, followed by Guofeng New Materials, Nanda Optoelectronics, and Xingye Co. with net inflows of 365 million yuan, 185 million yuan, and 110 million yuan respectively [2][3] Group 2 - In terms of net inflow ratios, Xingye Co., Dongcai Technology, and Guofeng New Materials had the highest ratios at 37.06%, 20.11%, and 18.23% respectively [3] - The top stocks in the photoresist concept by net inflow included Dongcai Technology with a daily increase of 9.95% and a turnover rate of 11.51%, Guofeng New Materials with a 6.79% increase and a turnover rate of 23.44%, and Nanda Optoelectronics with a 5.25% increase and a turnover rate of 11.52% [3][4]