资金流向方面，今日主力资金净流出3951.37万元，占比成交额13.81%。其中，超大单净流出1120.88万 元、占成交额3.92%，大单净流出2830.49万元、占成交额9.89%，中单净流出流入205.75万元、占成交 额0.72%，小单净流入3745.62万元、占成交额13.09%。 至纯科技最新一期业绩显示，截至2025一季报，公司营业总收入7.28亿元、同比减少10.32%，归属净利 润1901.61万元，同比减少70.09%，扣非净利润1024.76万元，同比减少83.64%，流动比率1.195、速动比 率0.718、资产负债率64.60%。 天眼查商业履历信息显示，上海至纯洁净系统科技股份有限公司，成立于2000年，位于上海市，是一家 以从事专业技术服务业为主的企业。企业注册资本38671.777万人民币，实缴资本12557.07万人民币。公 司法定代表人为蒋渊。 通过天眼查大数据分析，上海至纯洁净系统科技股份有限公司共对外投资了45家企业，参与招投标项目 76次，知识产权方面有商标信息73条，专利信息313条，此外企业还拥有行政许可44个。 来源：金融界 金融界消息 截至2025年7月30日 ...

一、本次交易的基本情况 上海至纯洁净系统科技股份有限公司（以下简称"公司"）正在筹划通过发 行股份及支付现金方式购买贵州威顿晶磷电子材料股份有限公司（以下简称"威 顿晶磷"）83.7775%股份并募集配套资金（以下简称"本次交易"）。本次交易完 成后，威顿晶磷将成为公司的控股子公司。本次交易预计不构成《上市公司重大 资产重组管理办法》规定的重大资产重组；本次交易不会导致公司实际控制人发 生变更，不构成重组上市。 证券代码：603690 证券简称：至纯科技 公告编号：2025-069 上海至纯洁净系统科技股份有限公司 关于发行股份及支付现金购买资产并募集配套资金 暨关联交易事项的进展公告 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。 本次交易预案披露后，公司持续推进本次交易的相关工作，并定期发布了进 展公告。详见公司分别于2025年3月29日、2025年4月29日、2025年5月30日、2025 年7月1日披露于上海证券交易所网站的《关于发行股份及支付现金购买资产并募 集配套资金暨关联交易事项的进展公告》（公告编号：2025- ...

Core Viewpoint - The semiconductor industry in China is transitioning from a global cooperative model to a regional strategic industry due to geopolitical factors, with significant growth in domestic wafer production capacity expected in the coming years [2][3]. Group 1: Market Trends - By 2024, China's mainland wafer production capacity is projected to account for nearly 25% of the global total, increasing to 31% by 2029, indicating a strong demand signal for local semiconductor equipment manufacturers [2]. - The equipment market size for wafer fabrication in mainland China is expected to reach $41.2 billion in 2024, leading other regions globally. However, a decline of 5% to $39 billion is anticipated in 2025 due to prior expansions and equipment stockpiling [2]. Group 2: Competitive Landscape - The impressive performance of equipment manufacturers in mainland China is attributed to their enhanced technological competitiveness and market development capabilities, supported by strong backing from the government and clients [3]. Group 3: Industry Players - A detailed table lists various companies involved in different process nodes, highlighting key players in the semiconductor equipment sector, such as North Huachuang, SMIC, and others, across various technologies [4].

证券代码：603690 证券简称：至纯科技 公告编号：2025-068 上海至纯洁净系统科技股份有限公司 为子公司提供担保的进展公告 重要内容提示： 被担保人名称及是否为关联担保：上海至纯系统集成有限公司（以下简称 "系统集成"）、至微半导体（上海）有限公司（以下简称"至微半导体"）。 本次担保为对全资及控股子公司提供的担保，不属于关联担保。 本次担保金额及已实际为其提供的担保余额：因公司全资及控股子公司系 统集成、至微半导体向银行申请授信贷款事项，公司与江苏银行股份有限公司上 海分行分别签订了《最高额连带责任保证书》。本次公司为系统集成提供担保金 额为 5,000 万元，截至本公告日累计为其提供担保余额为 67,861.34 万元；本次 公司为至微半导体提供担保金额为 5,000 万元，截至本公告日累计为其提供担保 余额为 72,793.80 万元；本次担保事项后的累计担保金额，均在公司股东会批准 的担保额度范围内。 本次担保是否有反担保：无 对外担保逾期的累计数量：无 特别风险提示：本次被担保人 2024 年末资产负债率超过 70%，敬请投资 者注意相关风险。 一、担保情况概述 经上海至纯洁净系统科技股份 ...

Group 1 - Oumei Medical (002950.SZ) shareholder Chen Haohua reduced holdings by 4.214 million shares, accounting for 0.67% of total shares, bringing his stake down to 10.87% [1] - Bestar (300822.SZ) shareholders plan to reduce holdings by up to 9.298731 million shares, representing 3% of total shares, within three months after 15 trading days [1] - Boying Special Welding (301468.SZ) shareholder Shenzhen Zhanxing Fund has reduced holdings by 2.616 million shares, accounting for 1.98% of total shares, since the disclosure of the reduction plan [1] Group 2 - Guizhou Gas (600903.SH) shareholders plan to reduce holdings by up to 34.5 million shares, representing 3% of total shares, within three months after 15 trading days [2] - Guotai Group (603977.SH) controlling shareholder has reduced holdings by 1.652 million shares, accounting for 0.266% of total shares, with the reduction plan completed [2] - Hongjing Technology (301396.SZ) directors plan to reduce holdings by up to 1.535 million shares, each accounting for 1% of total shares, within three months after 15 trading days [2] Group 3 - Huazhong Group (301027.SZ) senior management plans to reduce holdings by up to 32.8 million shares, 600,000 shares, 150,000 shares, and 500,000 shares respectively within three months after 15 trading days [1][2] - Mingyang Electric (301291.SZ) shareholders have completed a reduction of 3.23 million shares, accounting for 1.03% of total shares, with one shareholder required to buy back shares due to price issues [4] - Olin Bio (688319.SH) controlling shareholder plans to reduce holdings by up to 12.178 million shares, representing 3% of total shares, within three months after 15 trading days [5] Group 4 - Xinhai Technology (688595.SH) repurchase account reduced holdings by 1.071844 million shares, accounting for 0.75% of total shares, with the reduction plan completed [7] - Zhonghua Rock and Soil (002542.SZ) director Wang Hao completed a reduction of 500,000 shares, accounting for 0.0277% of total shares [8] - Zhongze Special Materials (300963.SZ) shareholder Shanghai Dunjia plans to reduce holdings by up to 8.0885 million shares, representing 1.76% of total shares, within three months after 15 trading days [9]

Summary of Key Points Core Viewpoint - The announcement details the share reduction plan executed by the company's Vice President, Lu Lei, who has reduced his holdings in the company, Shanghai Zhichun Clean System Technology Co., Ltd. [1] Group 1: Shareholding Information - Before the reduction plan, Lu Lei held 660,000 shares, representing 0.17% of the company's total share capital, acquired through equity incentives [1] - After the reduction, Lu Lei's remaining shareholding is 495,000 shares, which is 0.13% of the total share capital [1] Group 2: Reduction Plan Implementation - The reduction plan was first disclosed on June 14, 2025, with a maximum intended reduction of 165,000 shares, equating to no more than 0.04% of the total share capital [1] - The actual reduction was completed successfully, with Lu Lei selling 165,000 shares through centralized bidding, achieving a total amount of approximately 4,095,367.60 yuan [1] - The share price during the reduction ranged from 24.50 to 25.10 yuan per share [1] Group 3: Compliance with Reduction Plan - The actual reduction was consistent with the previously disclosed plan, and the minimum reduction quantity was met [1] - The reduction plan was completed ahead of schedule [1]

证券代码：603690 证券简称：至纯科技 公告编号：2025-067 上海至纯洁净系统科技股份有限公司 高级管理人员减持股份结果公告 1 本公司董事会、全体董事及相关股东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： 高级管理人员持股的基本情况 本次减持计划实施前，上海至纯洁净系统科技股份有限公司（以下简称"至 纯科技"）副总经理陆磊先生持有公司股份 660,000 股，占公司总股本的 0.17%。 上述股份来源于公司股权激励所取得的股份。 减持计划的实施结果情况 公司于 2025 年 6 月 14 日披露了《高级管理人员减持股份计划公告》（公告 编号：2025-057），公司副总经理陆磊先生拟通过集中竞价的方式减持其直接持 有的不超过 165,000 股的公司股份，减持数量占公司总股本的比例不超过 0.04%。 本次股份减持期间，陆磊先生通过集中竞价交易方式减持公司股份 165,000 股， 占公司总股本的 0.04%。 股东名称 陆磊 股东身份 控股股东、实控人及一致行动人 □是 √否 直接持股 5%以上股东 □是 √否 董事 ...

Group 1 - The core point of the news is that Lu Lei, a senior executive of Zhichun Technology, sold 78,000 shares of the company at an average price of 24.58 yuan, totaling approximately 1.92 million yuan, reducing his holdings to 582,000 shares [1][3] - Zhichun Technology's main business includes technology development, transfer, consulting, and services in electronic, optical fiber, biotechnology, and environmental technology fields, as well as the design and installation of water treatment systems and cleanroom facilities [2] - As of December 31, 2024, Zhichun Technology's revenue from system integration was 2.83 billion yuan, accounting for 78.51% of total revenue, while equipment business revenue was 606 million yuan, making up 16.80% [2] Group 2 - The total market capitalization of Zhichun Technology is 9.637 billion yuan as of the latest closing [4]

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。 上海至纯洁净系统科技股份有限公司 为子公司提供担保的进展公告 证券代码：603690 证券简称：至纯科技 公告编号：2025-066 重要内容提示： 近日，因公司全资及控股子公司江苏系统集成和泛楒立光电向银行申请授信 贷款、合肥至微半导体办理融资租赁事项，公司与江苏银行股份有限公司南通分 行、上海农村商业银行股份有限公司张江科技支行、安徽兴泰融资租赁有限责任 公司分别签订了《最高额保证合同》《保证合同》《法人保证合同》。本次公司 为江苏系统集成提供担保金额为 500 万元，截至本公告日累计为其提供担保余额 为 18,000.00 万元；本次公司为泛楒立光电提供担保金额为 1,000 万元，截至本 公告日累计为其提供担保余额为 4,800.00 万元；本次公司为合肥至微半导体提供 担保金额为 4,000 万元，截至本公告日累计为其提供担保余额为 29,405.93 万元； 本次担保事项后的累计担保金额，均在公司股东会批准的担保额度范围内。 二、被担保人基本情况 被担保人名称及是否为 ...

Group 1 - The company announced a share repurchase plan using a combination of bank loans and its own funds, with a maximum repurchase price set at RMB 33.65 per share and a total repurchase amount between RMB 80 million and RMB 160 million [1][2] - The share repurchase period is set for 12 months from the board's approval date, and the repurchased shares will be used for employee stock ownership plans or equity incentives [1][2] - The company will adjust the maximum repurchase price if there are changes in total share capital due to actions such as cash dividends or stock splits [2][3] Group 2 - The maximum repurchase price has been adjusted from RMB 33.65 to RMB 33.60 per share, effective from July 15, 2025, due to the distribution of cash dividends [3][4] - The cash dividend per share is calculated to be approximately RMB 0.0496 based on the adjusted total share capital [4] - Other aspects of the share repurchase plan remain unchanged, and the company will comply with relevant regulations for timely information disclosure [5]