Tiansu measurement is the CBBC IPO audit passed, planning to raise 423.9 million yuan.

On October 16, Shenzhen Tian Su Measurement and Testing Co., Ltd. (referred to as Tian Su Measurement) passed the listing committee meeting of the Shenzhen Stock Exchange's Growth Enterprise Board IPO. The sponsoring institution is CMSC, with a planned fundraising of 423.9 million yuan. According to the prospectus, Tian Su Measurement is a national, comprehensive independent third-party measurement and testing service organization, with its main business being professional technical services such as measurement calibration, testing, certification, etc. Its clients cover various fields of the national economy such as biomedicine, automobiles, new energy, rail transportation, energy and power, light industry and daily chemical products, and equipment manufacturing. The company is committed to providing high-quality and efficient professional technical services to ensure the quality of enterprises and help promote the high-quality development of manufacturing in China, in line with the requirements of building a strong manufacturing and quality country strategy. As of the end of June 2025, the company has developed and perfected a total of 1,417 calibration services in ten major measurement calibration fields including geometry, thermodynamics, mechanics, electromagnetics, radio, time and frequency, acoustics, optics, chemistry, and ionizing radiation, as well as comprehensive special measuring instruments, and further developed testing services for consumer batteries, power batteries, and energy storage batteries. The company has established grid measurement calibration and testing laboratories in multiple regions such as Guangdong, Guangxi, Yunnan, Hunan, Hubei, Jiangsu, Henan, Shanxi, Shaanxi, and Xinjiang, and has obtained accreditation from the China National Accreditation Service for Conformity Assessment (CNAS) and the China Metrology Accreditation (CMA). The funds raised in this issuance are planned to be invested in the following projects: Financially, in the fiscal years 2022, 2023, 2024, and January to June 2025, Tian Su Measurement achieved operating income of approximately 597 million yuan, 726 million yuan, 800 million yuan, and 409 million yuan respectively. During the same period, the company achieved net profits of approximately 84.3854 million yuan, 101 million yuan, 111 million yuan, and 55.5762 million yuan respectively.