Group 1: Company Listings - Xihua Technology (603248) was listed on the Shanghai Stock Exchange, while Tianshu Measurement (301449) and Nabai Chuan (301667) were listed on the Shenzhen Stock Exchange [1][2][3] Group 2: Xihua Technology (603248) - Xihua Technology focuses on the R&D, manufacturing, and sales of specialized components for large high-end equipment, primarily wind power gearbox components [2] - Before the issuance, Xihua Investment held 28,071.13 million shares, accounting for 77.98% of the total shares, making it the controlling shareholder [2] - The total amount raised from the issuance was 101,000.00 million, with a net amount of 92,576.57 million, intended for wind power core equipment industrialization and R&D center construction projects [2] Group 3: Tianshu Measurement (301449) - Tianshu Measurement is a nationwide independent third-party measurement and testing service provider, specializing in calibration, testing, and certification services [3] - Before the issuance, natural person shareholder Gong Tianbao held 3,390.00 million shares, representing 69.31% of the total shares, making him the controlling shareholder [3] - The total amount raised from the issuance was 60,000.00 million, with a net amount of 52,463.14 million, aimed at enhancing measurement capabilities and constructing regional laboratories and a digital center [3] Group 4: Nabai Chuan (301667) - Nabai Chuan specializes in the R&D, production, and sales of thermal management products for new energy vehicle power batteries, fuel vehicle power systems, and energy storage batteries [4] - Before the issuance, Chen Rongxian was the controlling shareholder, with the family collectively holding 55.58% of the shares [4] - The total amount raised from the issuance was 63,177.08 million, with a net amount of 55,555.22 million, intended for the production project of 3.6 million sets of water-cooled plates and to supplement working capital [5]

Core Viewpoint - Four companies listed on the ChiNext board have announced their performance forecasts for 2025, all indicating an increase in net profit [1] Group 1: Company Performance Forecasts - Company N Tian Su (301449) expects a net profit increase of 10.31% [1] - Company N Na Bai Chuan (301667) anticipates a net profit increase of 9.72% [1] - Company Xin Heng Hui (301678) projects a net profit increase of 4.66%, with a latest closing price of 67.18 yuan and a year-to-date increase of 60.41% [1] - Company Nan Wang Digital (301638) forecasts a net profit increase of 2.76%, with a latest closing price of 19.80 yuan and a year-to-date increase of 7.14% [1] Group 2: Industry Insights - The companies span various industries, including social services, automotive, electronics, and computer sectors [1]

Market Performance - On December 22, 2025, the A-share market saw all three major indices rise, with the Shanghai Composite Index closing at 3917.36 points, up 0.69%, the Shenzhen Component Index at 13332.73 points, up 1.47%, and the ChiNext Index at 3191.98 points, up 2.23%. Over 2900 stocks rose, and the total trading volume in the Shanghai and Shenzhen markets was 1.86 trillion yuan, an increase of 130 billion yuan from the previous trading day [1] - The Hong Kong stock market experienced fluctuations, with the Hang Seng Index closing up 0.43% at 25801.77 points and a total trading volume of 169.77 billion HKD. The Hang Seng Tech Index rose by 0.87% to 5526.83 points [1] - In the U.S. stock market, all three major indices continued to rise for three consecutive days, with the Dow Jones Industrial Average up 0.47% to 48362.68 points, the S&P 500 up 0.64% to 6878.49 points, and the Nasdaq Composite up 0.52% to 23428.83 points [1] New Stock Listings - Xihua Technology, with stock code 603248, was listed at an issue price of 10.1 yuan per share and an earnings ratio of 33.12 times. The company specializes in the R&D, manufacturing, and sales of high-end equipment components, primarily focusing on wind power gearbox components [2] - Tian Su Measurement, with stock code 301449, was listed at an issue price of 36.8 yuan per share and an earnings ratio of 21.78 times. It is a national independent third-party measurement and testing service provider, serving various sectors including biomedicine, automotive, new energy, and rail transportation [2] Important News - The Shanghai Futures Exchange announced adjustments to trading limits for silver futures contracts, effective December 24, 2025. Non-futures company members and certain foreign participants will have a maximum daily opening position limit of 10,000 contracts for the AG2602 contract [3] - The Ministry of Commerce of China will implement temporary anti-subsidy measures on imported dairy products from the EU starting December 23, 2025, due to preliminary findings of subsidies causing substantial harm to the domestic dairy industry [3]

Core Viewpoint - The article discusses the IPOs of several companies, including 蘅东光, 天溯计量, and 锡华科技, highlighting their business models, market positions, and potential risks associated with their operations. Group 1: 蘅东光 - 蘅东光, established in September 2011, specializes in the R&D, manufacturing, and sales of passive optical devices in the optical communication field, recognized as a national high-tech enterprise [2] - The company has achieved significant technological milestones, including 111 domestic patents and 1 international patent, and has established long-term partnerships with major clients like AT&T, Verizon, and Google [2] - 蘅东光's assets and revenue are projected to grow rapidly, with a compound annual growth rate (CAGR) of 61.34% for total assets and 66.33% for revenue from 2022 to 2024 [3] Group 2: 天溯计量 - 天溯计量, founded in 2009, is an independent third-party measurement and testing service provider, offering calibration, testing, and certification services across various fields [4] - The company has developed extensive battery testing capabilities and serves notable clients in the new energy sector, including 中创新航 and 小鹏汽车 [4] - 天溯计量's gross margin has shown a declining trend, with figures of 52.67%, 53.86%, 53.40%, and 51.56% from 2022 to the first half of 2025, indicating potential pricing pressures in the market [5][6] Group 3: 锡华科技 - 锡华科技 focuses on the R&D, manufacturing, and sales of specialized components for large high-end equipment, particularly in the wind power sector, and is recognized for its comprehensive service capabilities [6] - The company has a high customer concentration risk, with revenue from its top five clients accounting for over 90% of its main business income from 2022 to 2025 [7] - 锡华科技 aims to reduce its customer concentration by expanding its production capacity and acquiring new clients, although it remains vulnerable to fluctuations in its major clients' performance [7] Group 4: 纳百川 - 纳百川, established in 2007, specializes in thermal management products for electric vehicle batteries and fuel vehicles, being one of the early entrants in the new energy vehicle sector [8] - The company has a strong partnership with 宁德时代, with significant revenue dependence on this client, accounting for over 44% of its sales from 2022 to the first quarter of 2025 [9][10] - Despite its growth, 纳百川 acknowledges the risks associated with its reliance on 宁德时代, particularly if market conditions change and demand decreases [10]

Group 1: New Stock Offerings - This week (December 8 to 12), there are five new stocks available for subscription, including one from the Shenzhen main board, one from the Shanghai main board, two from the ChiNext board, and one from the Sci-Tech Innovation board [1] - The subscription dates are as follows: Nabai Chuan and Youxun Co., Ltd. on December 8, Yuanchuang Co., Ltd. on December 9, and Tiansu Measurement and Xihua Technology on December 12 [1] Group 2: Company Highlights - Nabai Chuan focuses on thermal management systems for power batteries in electric vehicles and has become a benchmark enterprise in the domestic battery liquid cooling plate sector, benefiting from over ten years of technological accumulation [2] - Youxun Co., Ltd. is a leading enterprise in the optical communication chip sector, recognized for providing comprehensive optical communication chip solutions and has achieved significant market presence in both domestic and global markets [3][4] - Yuanchuang Co., Ltd. is a major player in the rubber track industry, offering over a thousand types of rubber track products and recognized for its technical strength and industry position [4] - Xihua Technology specializes in the research, manufacturing, and sales of components for large high-end equipment, particularly wind power gearbox components, and is a leader in the global industry [4] - Tiansu Measurement, established in 2009, is a national independent third-party measurement and testing service provider, recognized as a national high-tech enterprise and a champion in the manufacturing sector [5]

Group 1: Company Overview - Tian Su Measurement, established in 2009, is a national independent third-party measurement and testing service provider, specializing in calibration, testing, and certification services across ten calibration fields, including geometric, thermal, mechanical, electromagnetic, optical, and ionizing radiation [1] - The company has developed 1,417 calibration capabilities and serves diverse sectors such as biomedicine, automotive, energy, and light industry [1] Group 2: Financial Information - Tian Su Measurement's initial public offering (IPO) price is set at 18.00 yuan per share, with an institutional offering price of 36.80 yuan per share, resulting in a market capitalization of 37.08 billion yuan [2] - The company's projected gross profit margins from 2022 to the first half of 2025 are 52.67%, 53.86%, 53.40%, and 51.56%, indicating a potential decline in profitability [4] Group 3: Investment Directions - The company plans to allocate raised funds towards enhancing measurement and testing capabilities at its Shenzhen headquarters (1.28 billion yuan), establishing regional testing laboratories (1.75 billion yuan), developing a digital center (0.32 billion yuan), and supplementing working capital (0.90 billion yuan) [3] Group 4: Industry Context - The testing and certification industry is characterized by a high number of institutions and increasing marketization, but many small companies lack comprehensive service capabilities, which may lead to price competition that could negatively impact business expansion and client relationships [5] - The average price for calibration services has shown a downward trend, with prices from 2022 to the first half of 2025 being 142.01 yuan, 135.78 yuan, 129.69 yuan, and 119.43 yuan [5] Group 5: Battery Testing Services - Since 2018, Tian Su Measurement has expanded into battery testing services, establishing 84 major testing capabilities and over 2,000 testing channels for battery cells, modules, and packs, serving notable clients in the new energy sector [4] Group 6: Competitor Overview - Xi Hua Technology, primarily engaged in the research, manufacturing, and sales of specialized components for large high-end equipment, has an IPO price of 10.10 yuan per share and a market capitalization of 36.36 billion yuan [6] - The company is one of the few in China capable of providing full-process services for wind turbine gearbox components and has developed products for wind turbines ranging from 1MW to 22MW [10]

Weekly New Stock Performance - Four new stocks were listed from December 15 to December 19, with an average first-day price increase of 342.82%[2] - All four new stocks had first-day gains exceeding 100%, including Yuxun Co. (346.57%), Yuanchuang Co. (171.64%), Muxi Co. (692.95%), and Angrui Micro (160.11%)[2][5] - No new stocks experienced a first-day decline during this period[2] Weekly New Stock Issuance Trends - The total amount raised from new stock issuances last week was 77.82 billion yuan, an increase of 65.15 billion yuan compared to the previous week[4] - The number of new stocks listed last week was four, compared to one the week before[5] Monthly New Stock Overview - From December 1 to December 19, a total of eight new stocks were listed, raising 216.64 billion yuan with a first-day price increase average of 319.27%[11] - The first-day price increase range for these stocks was between 146.63% and 692.95%[11] Upcoming New Stock Listings - Three new stocks are scheduled to be listed this week, including one on the main board and two on the ChiNext board[18] - The expected fundraising amounts for the upcoming listings are 3.24 billion yuan for Hengtong Light, 15.55 billion yuan for Shaanxi Tourism, and 7.28 billion yuan for Xinguangyi[23]

Group 1 - The company Tian Su Measurement (301449.SZ) will be listed on the Shenzhen Stock Exchange's ChiNext board on December 23, 2025 [1]

天溯计量（301449）(301449.SZ)公告，公司股票将于2025年12月23日在深圳证券交易所创业板上市。 ...

股票简称：天溯计量 股票代码：301449 深圳天溯计量检测股份有限公司 SHENZHEN TIANSU CALIBRATION AND TESTING CO., LTD. （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） 首次公开发行股票并在创业板上市 上市公告书 保荐人（主承销商） （深圳市福田区福田街道福华一路 111 号） 深圳天溯计量检测股份有限公司 上市公告书 特别提示 深圳天溯计量检测股份有限公司（以下简称"天溯计量""公司""本公 司"或"发行人"）股票将于 2025 年 12 月 23 日在深圳证券交易所创业板上 市。 创业板公司具有业绩不稳定、经营风险高、退市风险大等特点，投资者面 临较大的市场风险。投资者应充分了解创业板市场的投资风险及本公司所披露 的风险因素，审慎做出投资决定。 本公司提醒投资者应充分了解股票市场风险及本公司披露的风险因素，在 新股上市初期切忌盲目跟风"炒新"，应当审慎决策、理性投资。 如无特别说明，本上市公告书中的简称或名词的释义与本公司首次公开发 行股票并在创业板上市招股说明书中的相同。如本上市公告书中合计数与各加 数直接 ...