证券之星消息，2月4日专业服务板块较上一交易日下跌0.17%，胜科纳米领跌。当日上证指数报收于 4102.2，上涨0.85%。深证成指报收于14156.27，上涨0.21%。专业服务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 | | --- | --- | --- | --- | --- | --- | --- | --- | | 300572 | 安车检测 | 1809.55万 | 9.82% | -416.38万 | -2.26% | -1393.17万 | -7.56% | | 603060 | 国检集团 | 1210.13万 | 5.46% | 459.06万 | 2.07% | -1669.19万 | -7.53% | | 301632 广东建科 | | 1143.48万 | 11.28% | -508.46万 | -5.02% | -635.02万 | -6.27% | | 301508 | 中机认检 | 451.56万 | 7.72% | 92.41万 | 1.58% | -543 ...

Core Viewpoint - The company has successfully renewed its status as a high-tech enterprise, allowing it to continue benefiting from tax incentives for the next three years [1]. Group 1: High-Tech Enterprise Certification - The company received the "High-Tech Enterprise Certificate" from the Jiangsu Provincial Department of Science and Technology, Jiangsu Provincial Department of Finance, and the National Taxation Bureau of Jiangsu Province, with certificate number GR202532002510, issued on November 18, 2025, valid for three years [1]. - This renewal follows the expiration of the previous high-tech enterprise certificate, ensuring the company can maintain its tax benefits [1]. Group 2: Tax Incentives - Upon re-certification as a high-tech enterprise, the company will continue to enjoy a reduced corporate income tax rate of 15% for three consecutive years, in accordance with the Corporate Income Tax Law of the People's Republic of China and relevant national tax policies [1]. - The renewal of the high-tech enterprise status does not affect the company's current tax incentives and is not expected to have a significant impact on its operating performance [1].

胜科纳米（苏州）股份有限公司（以下简称"公司"）于近期收到江苏省科学 技术厅、江苏省财政厅、国家税务总局江苏省税务局联合颁发的《高新技术企业 证书》，证书编号为 GR202532002510，发证时间为 2025 年 11 月 18 日，有效期 为三年。 证券代码：688757 证券简称：胜科纳米 公告编号：2026-001 胜科纳米(苏州)股份有限公司 关于自愿披露通过高新技术企业重新认定的公告 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。 胜科纳米（苏州）股份有限公司董事会 2026 年 2 月 4 日 公司本次高新技术企业认定系原高新技术企业证书有效期满后进行的重新 认定。根据《中华人民共和国企业所得税法》及国家相关税收政策规定，公司自 通过高新技术企业重新认定起连续三年可继续享受国家关于高新技术企业的税 收优惠政策，即按 15%的税率缴纳企业所得税。该事项不影响公司目前适用的企 业所得税税收优惠政策，不会对公司经营业绩产生重大影响。 特此公告。 ...

格隆汇2月3日丨胜科纳米(688757.SH)公布，公司于近期收到江苏省科学技术厅、江苏省财政厅、国家 税务总局江苏省税务局联合颁发的《高新技术企业证书》，证书编号为GR202532002510，发证时间为 2025年11月18日，有效期为三年。公司本次高新技术企业认定系原高新技术企业证书有效期满后进行的 重新认定。 ...

Core Viewpoint - The company, Shengke Nano (688757.SH), has recently received the "High-tech Enterprise Certificate" from the Jiangsu Provincial Department of Science and Technology, Jiangsu Provincial Department of Finance, and the State Taxation Administration of Jiangsu Province, indicating its recognition as a high-tech enterprise for a new three-year term [1] Group 1 - The certificate number issued to the company is GR202532002510, with an issuance date of November 18, 2025 [1] - This recognition is a renewal following the expiration of the previous high-tech enterprise certificate [1]

Core Viewpoint - The company, Shengke Nano, provides a range of testing and analysis services for storage chips, utilizing unique analytical techniques tailored to the industry's specific requirements [1] Group 1: Company Services - Shengke Nano specializes in testing and analysis services for storage chips [1] - The company has developed unique analytical techniques for high aspect ratio etching processes and high-density complex circuit characteristics in storage chips [1] Group 2: Information Disclosure - Specific customer information is subject to commercial confidentiality and relevant disclosure regulations, and stakeholders are advised to refer to company announcements or periodic reports for detailed information [1]

Core Viewpoint - The professional services sector experienced a rise of 0.86% on January 22, with Keri International leading the gains, while the Shanghai Composite Index closed at 4122.58, up 0.14% [1]. Group 1: Market Performance - The professional services sector saw significant individual stock movements, with Keri International closing at 30.81, up 7.09% on a trading volume of 150,100 shares and a transaction value of 453 million [1]. - Other notable performers included Shengke Nano, which rose 6.70% to 32.80, and Zhongfang Biao, which increased by 5.27% to 36.73 [1]. - The overall trading volume and transaction values for the sector indicated active market participation, with total transaction values reaching billions [1]. Group 2: Fund Flow Analysis - On the same day, the professional services sector experienced a net outflow of 40.74 million from institutional funds, while retail funds saw a net inflow of 82.54 million [2]. - The data indicates that retail investors were more active in the market, contrasting with the outflow from institutional investors [2]. - Specific stocks like Su Shi Shi Yan and Li He Ke Chuang showed varied fund flows, with Su Shi Shi Yan experiencing a net outflow of 41.82 million from retail investors [3].

Core Viewpoint - The A-share market opened positively with all three major indices rising, indicating a bullish sentiment among investors [1] Market Performance - The Shanghai Composite Index opened up by 0.22%, reaching 4126.07 points [1] - The Shenzhen Component Index increased by 0.41% [1] - The ChiNext Index rose by 0.52% [1] Sector Performance - Storage chip stocks continued their upward trend, with Yingfang Micro reaching the daily limit, and both Shengke Nano and Langke Technology rising over 10% [1] - Major companies in the storage sector, including Micron, SanDisk, and Western Digital, achieved new highs overnight [1] - Gold and silver prices have retreated from historical highs, leading to a collective adjustment in the gold and non-ferrous metal sectors [1]

Group 1 - The core viewpoint of the news is that Shengke Nano's stock experienced a decline of 2.73% on January 19, with a trading volume of 98.97 million yuan, indicating market volatility [1] - On January 19, Shengke Nano had a financing buy-in amount of 11.12 million yuan and a net financing buy of 3.34 million yuan, with a total financing and securities balance of 92.71 million yuan [1] - The company specializes in semiconductor third-party testing and analysis, with its main business revenue composition being failure analysis (FA) at 64.04%, material analysis (MA) at 33.17%, reliability analysis (RA) at 2.63%, and others at 0.16% [1] Group 2 - As of September 30, Shengke Nano had 9,036 shareholders, a decrease of 19.79% from the previous period, while the average circulating shares per person increased by 34.12% to 3,878 shares [2] - For the period from January to September 2025, Shengke Nano achieved an operating income of 386 million yuan, representing a year-on-year growth of 31.22%, and a net profit attributable to the parent company of 56.59 million yuan, up 3.59% year-on-year [2] - Since its A-share listing, Shengke Nano has distributed a total of 80.26 million yuan in dividends [2]

Core Insights - The professional services sector experienced a slight increase of 0.01% on January 16, with Electric Science Institute leading the gains [1] - The Shanghai Composite Index closed at 4101.91, down 0.26%, while the Shenzhen Component Index closed at 14281.08, down 0.18% [1] Performance Summary - Electric Science Institute (300215) saw a closing price of 8.16, with a significant increase of 20.00% and a trading volume of 809,400 shares [1] - West High Institute (688334) closed at 25.06, up 19.50%, with a trading volume of 313,600 shares [1] - National Achievement Testing (301289) closed at 63.55, up 5.04%, with a trading volume of 33,200 shares [1] - Other notable performers include Victory Nano (688757) with a 4.12% increase, and Broadcasting Measurement (002967) with a 4.01% increase [1] Capital Flow Analysis - The professional services sector saw a net inflow of 58.26 million yuan from institutional investors, while retail investors experienced a net outflow of 33.14 million yuan [2] - Electric Science Institute had a net inflow of 18.9 million yuan from institutional investors, representing 30.20% of its total trading volume [3] - West High Institute experienced a net inflow of 6.88 million yuan from institutional investors, with a net outflow of 39.03 million yuan from retail investors [3]