证券代码：605588 证券简称：冠石科技 公告编号：2025-044 南京冠石科技股份有限公司 股票交易异常波动公告 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。 重要内容提示： 南京冠石科技股份有限公司（以下简称"公司"）股票价格连续 3 个交易 日内收盘价格涨幅偏离值累计超过 20%。根据《上海证券交易所交易规则》的相 关规定，属于股票交易异常波动情形。 经公司董事会自查及发函问询控股股东及实际控制人，截至本公告披露 日，公司不存在应披露而未披露的重大信息。 公司于 2025 年 7 月 15 日发布《2025 年半年度业绩预告》，经公司财务 部门初步测算，预计 2025 年半年度实现归属于母公司所有者的净利润为-1,800 万元到-1,200 万元，与上年同期相比，将出现亏损；预计 2025 年半年度实现归 属于母公司所有者的扣除非经常性损益后的净利润为-2,800 万元到-1,900 万元。 本次业绩预告的财务数据未经审计机构审计，具体数据以公司披露的 2025 年半 年度报告为准。 敬请广大投资者注意二级市场投资 ...

Core Viewpoint - The stock price of Guanshi Technology (605588.SH) has experienced an abnormal fluctuation, with a cumulative increase of over 20% in closing prices over three consecutive trading days, leading to a self-examination by the company [1] Summary by Relevant Sections - **Stock Price Movement** - The company's stock price has deviated significantly, with a cumulative increase exceeding 20% over three trading days, indicating unusual trading activity [1] - **Company's Business Focus** - Guanshi Technology is primarily engaged in the manufacturing of photomasks and does not manufacture electron beam lithography equipment, despite being associated with the photolithography equipment sector in market discussions [1] - **Revenue Impact** - The revenue from the photomask manufacturing project is projected to account for less than 2% of the company's total revenue in the first half of 2025, indicating that it has a minimal impact on the company's main business operations [1]

格隆汇8月15日丨冠石科技(605588.SH)公布股票交易异常波动公告，经公司自查，截至本公告日，关注 到市场将公司列入光刻机设备相关热点概念。公司目前只涉及光掩膜版制造业务，不涉及电子束光刻机 设备的制造业务。2025年上半年，光掩膜版制造项目业务收入占公司营业收入比例不足2%，占比极 小，对公司主营业务不构成重大影响。 公司董事、总经理门芳芳女士，董事、副总经理兼董事会秘书王顺利女士现处于减持计划实施期间，详 见公司于2025年5月6日发布的《关于股东及董监高集中竞价减持股份计划公告》。2025年8月13日至15 日连续三个交易日内，门芳芳女士减持39,000股，王顺利女士减持100股。经核实，除前述情况外，公 司控股股东、实际控制人，以及公司其他董事、监事、高级管理人员在公司本次股票交易异常波动期间 不存在买卖公司股票的情况。 ...

Market Performance - The optical and optoelectronic sector increased by 1.96% on August 15, with Geberga leading the gains [1] - The Shanghai Composite Index closed at 3696.77, up 0.83%, while the Shenzhen Component Index closed at 11634.67, up 1.6% [1] Stock Highlights - Geberga (835438) closed at 37.10, up 18.91% with a trading volume of 154,900 shares and a transaction value of 546 million [1] - Tengjing Technology (688195) closed at 53.92, up 11.18% with a trading volume of 212,000 shares and a transaction value of 1.098 billion [1] - Hongjing Optoelectronics (301479) closed at 102.20, up 10.58% with a trading volume of 66,200 shares and a transaction value of 665 million [1] - Other notable stocks include Guanshi Technology (605588) up 9.99%, Huaben Technology (603679) up 7.40%, and Bayi Space (688181) up 6.48% [1] Capital Flow - The optical and optoelectronic sector saw a net inflow of 325 million from institutional investors, while retail investors experienced a net outflow of 15.72 million [2] - Major stocks like Zhouming Technology (300232) had a net inflow of 172 million from institutional investors, while retail investors had a net outflow of 207 million [3] - TCL Technology (000100) reported a net inflow of 103 million from institutional investors but a net outflow of 119 million from retail investors [3]

Group 1 - Semiconductor stocks experienced a volatile rise on August 15, with notable gains in several companies [2] - Shengke Communication surged over 15% in the afternoon trading session [2] - Dongxin Co. saw an increase of over 10% [2] - Guanshi Technology previously hit the daily limit up [2] - Other companies such as Jingfeng Mingyuan, Saiwei Electronics, Helin Weina, and Ashichuang also reported significant gains [2]

Group 1 - The chemical sector experienced a significant rise on August 15, with the chemical ETF (516020) increasing by 1.51% [1] - Key stocks in the sector included Lianhong Xinke, which surged over 7%, and Xinjubang and Jinfakeji, both rising over 6% [1] - The basic chemical sector attracted over 7 billion yuan in net inflows, ranking fifth among 30 major sectors [2][3] Group 2 - Recent retail prices for refrigerants like R32 and R227ea have been rising, with R32 expected to average 56,000 to 58,000 yuan per ton from August to October [3] - The chemical ETF (516020) is currently at a low valuation, with a price-to-book ratio of 2.07, indicating potential for long-term investment [3] - Analysts suggest that the "anti-involution" trend in the chemical industry may lead to the elimination of outdated production capacity, improving the competitive landscape and profitability [4] Group 3 - The chemical ETF (516020) tracks the CSI segmented chemical industry index, covering various sub-sectors and focusing on large-cap stocks [4] - Investors can also consider chemical ETF linked funds for exposure to the chemical sector [4]

证券之星消息，8月14日光学光电子板块较上一交易日下跌1.67%，沃格光电领跌。当日上证指数报收于 3666.44，下跌0.46%。深证成指报收于11451.43，下跌0.87%。光学光电子板块个股涨跌见下表： | 代码 | 名称 | 主力净流入(元) | 主力净占比 游资净流入 (元) | | 游资净占比 散户净流入 (元) | | 散户净占比 | | --- | --- | --- | --- | --- | --- | --- | --- | | 002456 | 欧菲光 | 8558.45万 | 3.70% | -2867.19万 | -1.24% | -5691.26万 | -2.46% | | 301421 波长光电 | | 8335.56万 | 10.24% | -2201.30万 | -2.71% | -6134.26万 | -7.54% | | 300232 洲明科技 | | 7778.74万 | 18.54% | -800.14万 | -1.91% | -6978.59万 | -16.63% | | 605588 冠石科技 | | 7094.02万 | 46.96% | -4416.15万 ...

格隆汇8月12日丨冠石科技(605588.SH)在投资者互动平台表示，公司目前与新凯莱没有业务合作。 ...

格隆汇8月12日丨冠石科技(605588.SH)在投资者互动平台表示，公司目前与新凯莱没有业务合作。 ...

Core Viewpoint - Guanshi Technology (605588.SH) has indicated that its photomask products can be applied in the PCB (Printed Circuit Board) sector [1] Company Summary - Guanshi Technology is actively engaging with investors regarding its product applications [1] Industry Summary - The application of photomask products in the PCB field highlights the potential for growth and innovation within the semiconductor and electronics manufacturing industry [1]