Group 1 - The company has developed calibration standards for high-end medical device measurement, including specifications for medical syringe toughness testing, injection needle puncture force testing, and infusion device sealing testing [2] - The company has received CNAS (China National Accreditation Service for Conformity Assessment) recognition for its calibration standards, which enhances the stability and reliability of key equipment performance in the medical device industry [2]

Group 1 - The company, Tian Su Measurement (301449.SZ), has established a network of 22 measurement laboratories and 5 testing bases across the country, creating a grid-based, digital, and shared smart laboratory service system [2] - The company has received recognition from the China National Accreditation Service for Conformity Assessment (CNAS) and the Certification and Accreditation Administration of the People's Republic of China (CMA) for its qualifications [2] - The Hainan Tianzhong Laboratory has been authorized as a legal metrology verification institution, and the subsidiary Tian Su International has been approved by the National Certification and Accreditation Administration (CNCA) [2]

Group 1 - The company, Tian Su Measurement, specializes in professional technical services such as measurement calibration, testing, and certification [2] - The main business areas include ten calibration fields: geometric, thermal, mechanical, electromagnetic, radio, time and frequency, acoustic, optical, chemical, and ionizing radiation, along with specialized measurement instruments [2] - The testing services primarily focus on consumer batteries, power batteries, and energy storage battery testing [2]

Core Viewpoint - The company Tian Su Measurement (301449.SZ) specializes in professional technical services such as measurement calibration, testing, and certification, serving various sectors of the national economy [1] Group 1: Business Overview - The main business activities of the company include measurement calibration, testing, and certification [1] - The company's clients span multiple fields including biomedicine, automotive, new energy, rail transportation, energy and electricity, light industry and daily chemicals, and equipment manufacturing [1] Group 2: Collaboration Status - The company has confirmed that it currently has no order cooperation with Blue Arrow Aerospace [1]

Core Viewpoint - Tian Su Measurement announced the approval of changes to its registered capital and company type during board and shareholder meetings, along with the completion of related business registration procedures [2] Group 1 - The company held its fourth board meeting on December 29, 2025, and the first extraordinary shareholders' meeting on January 15, 2026, to discuss the changes [2] - The proposal included authorization for the chairman and authorized representatives to handle the registration capital change and related amendments [2] - The company has completed the business registration change and received a new business license from the Shenzhen Market Supervision Administration [2]

证券代码：301449 证券简称：天溯计量 公告编号：2026-002 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。 一、基本情况 深圳天溯计量检测股份有限公司（以下简称"公司"）于2025年12月29日召开的 第四届董事会第十二次会议及 2026年1月15日召开的2026年第一次临时股东会，审议 通过了《关于变更公司注册资本、公司类型、修订<公司章程>并办理工商变更的议 案》，并同时提请股东会授权董事长及其授权代表全权办理本次公司注册资本变更 及章程备案相关事宜。具体内容详见公司2025年12月31日、2026年1月15日在巨潮资 讯网（http://www.cninfo.com.cn）上披露的《关于变更公司注册资本、公司类型、修 订<公司章程>并办理工商变更的公告》（公告编号：2025-005）、《2026年第一次 临时股东会决议公告》（公告编号：2026-001）。 住所：深圳市龙岗区宝龙街道宝龙社区锦龙大道2号1栋1层-6层、4栋1层-5层、2 栋1层-2层 深圳天溯计量检测股份有限公司 关于完成工商变更登记并换发营业执照的公告 二、工商变更情况 近 ...

Market Overview - As of January 21, the Shanghai Composite Index closed at 4116.94 points, up by 3.29 points, with a growth rate of 0.08% [1] - The Shenzhen Component Index closed at 14255.13 points, increasing by 99.50 points, representing a growth rate of 0.70% [1] - The ChiNext Index closed at 3295.52 points, rising by 17.54 points, with a growth rate of 0.54% [1] High Turnover Stocks - A total of 80 A-shares had a turnover rate exceeding 20% on this day, with Aisheren reaching a turnover rate of over 50% [1] - The stock Aisheren had a closing price of 44.04 yuan, with a turnover rate of 78.23% and a significant increase of 175.59% [1] - Other notable stocks with high turnover rates include: - Nabai Chuan: Closing price 86.26 yuan, turnover rate 44.53%, increase of 9.87% [1] - Guangdian Electric: Closing price 6.09 yuan, turnover rate 44.40%, increase of 9.93% [1] - Jintaiyang: Closing price 39.13 yuan, turnover rate 44.16%, increase of 19.96% [1] Additional High Turnover Stocks - Other stocks with notable turnover rates include: - Blue Arrow Electronics: Closing price 36.75 yuan, turnover rate 43.18%, increase of 2.45% [1] - Sanbian Technology: Closing price 21.06 yuan, turnover rate 41.55%, decrease of 8.03% [1] - Hongbaoli: Closing price 9.59 yuan, turnover rate 39.79%, increase of 9.98% [1] - The stock with the highest turnover rate in the second list is Tai Li Technology, with a turnover rate of 28.52% and an increase of 6.32% [2] Summary of Notable Stocks - The stock with the highest turnover in the third list is Tian Di Online, with a turnover rate of 22.08% and an increase of 10.01% [3] - Other significant stocks include: - New Henghui: Closing price 85.76 yuan, turnover rate 22.04%, increase of 2.22% [3] - Jiangtian Chemical: Closing price 31.56 yuan, turnover rate 22.01%, increase of 4.12% [3]

Core Viewpoint - Tian Su Measurement has shown a positive performance in stock trading, with a 2.63% increase in share price and a trading volume of 315 million yuan on January 19, indicating investor interest and activity in the company [1]. Group 1: Financial Performance - For the period from January to September 2025, Tian Su Measurement achieved a revenue of 648 million yuan, representing a year-on-year growth of 12.12% [2]. - The net profit attributable to the parent company for the same period was 92.9851 million yuan, reflecting a year-on-year increase of 11.62% [2]. Group 2: Shareholder and Market Data - As of December 23, 2025, the number of shareholders for Tian Su Measurement reached 20,200, which is a significant increase of 201,920% compared to the previous period [2]. - The average number of circulating shares per shareholder is 688 shares, showing no change from the previous period [2]. Group 3: Financing and Margin Trading - On January 19, Tian Su Measurement recorded a financing buy-in amount of 20.582 million yuan, while the financing repayment was 27.4816 million yuan, resulting in a net financing outflow of 6.8996 million yuan [1]. - The total margin trading balance for Tian Su Measurement as of January 19 is 66.9206 million yuan, which accounts for 5.58% of its market capitalization [1].

Market Overview - As of January 19, the Shanghai Composite Index closed at 4114.00 points, up 12.09 points, with a gain of 0.29% [1] - The Shenzhen Component Index closed at 14294.05 points, up 12.97 points, with a gain of 0.09% [1] - The ChiNext Index closed at 3337.61 points, down 23.41 points, with a decline of 0.70% [1] Stock Performance - A total of 86 A-shares had a turnover rate exceeding 20%, indicating significant trading activity [1] - Key stocks with high turnover rates included: - Kema Materials (科马材料) with a turnover rate of 62.05% and a closing price of 40.25 yuan, down 26.75% [1] - Kuntai Co. (坤泰股份) with a turnover rate of 54.99% and a closing price of 24.74 yuan, up 4.70% [1] - Sanbian Technology (三变科技) with a turnover rate of 48.63% and a closing price of 21.97 yuan, up 10.02% [1] - Nabichuan (纳百川) with a turnover rate of 44.29% and a closing price of 80.88 yuan, up 8.83% [1] - Hongxiang Co. (红相股份) with a turnover rate of 40.96% and a closing price of 17.99 yuan, up 15.17% [1] Notable Stocks - Other notable stocks with high turnover rates included: - Kangqiang Electronics (康强电子) at 40.96% turnover, closing at 23.48 yuan, up 7.46% [1] - Fangzheng Electric (方正电机) at 39.47% turnover, closing at 16.53 yuan, up 5.09% [1] - Shuangjie Electric (双杰电气) at 39.16% turnover, closing at 14.82 yuan, up 20.00% [1] - Deen Precision (德恩精工) at 39.15% turnover, closing at 24.19 yuan, up 2.76% [1] - C Zhi Xin (C至信) at 37.80% turnover, closing at 52.04 yuan, down 6.54% [1]

Core Viewpoint - Tian Su Measurement announced the approval of the proposal to change the accounting firm at the first extraordinary shareholders' meeting of 2026 [2] Group 1 - The company held its first extraordinary shareholders' meeting of 2026 on January 15 [2] - The proposal regarding the change of accounting firm was reviewed and approved during the meeting [2]