Shenzhen Tiansu Calibration And Testing Co.,Ltd. (301449.SZ) Opens Subscription with Core Business in Metrology, Testing, and Certification Services

Stock News12-12

On December 12, Shenzhen Tiansu Calibration And Testing Co.,Ltd. (301449.SZ) initiated its public subscription at an issue price of RMB 36.8 per share, with a subscription cap of 4,000 shares and a P/E ratio of 21.78x. Listed on the Shenzhen Stock Exchange, the company is underwritten by China Merchants Securities.

Founded in 2009, Tiansu is a nationwide independent third-party metrology and testing service provider specializing in calibration, inspection, and certification services. Its clientele spans industries such as biopharmaceuticals, automotive, new energy, rail transit, power generation, consumer goods, and equipment manufacturing. The company aims to support manufacturing quality and align with China’s national strategies for manufacturing and quality excellence.

By June 2025, Tiansu had developed 1,417 calibration services across ten metrology fields, including geometrics, thermodynamics, mechanics, electromagnetics, radio, time-frequency, acoustics, optics, chemistry, and ionizing radiation. It has also expanded into testing services for consumer, power, and energy storage batteries.

With a network of calibration and testing labs in Guangdong, Guangxi, Yunnan, Hunan, Hubei, Jiangsu, Henan, Shanxi, Shaanxi, and Xinjiang, Tiansu holds CNAS and CMA accreditations. Its Hainan lab is authorized as a statutory metrology institution, while subsidiary Tiansu International is approved by CNCA as a certification body.

The company operates 27 key laboratory sites nationwide, enabling rapid response and efficient service. Since 2018, Tiansu has ventured into battery testing, serving clients like CALB, Greater Bay Technology, EVE Energy, SVOLT, and Hithium in the battery sector, as well as GAC Group, GAC Aion, and XPeng in the EV industry.

Financially, Tiansu has shown consistent growth. From 2022 to the first half of 2025, revenue rose from RMB 597 million to RMB 409 million (H1 2025), with net profits increasing from RMB 84.39 million to RMB 55.58 million (H1 2025). The company plans to deepen its market presence in metrology while exploring smart and online calibration technologies to reinforce its industry leadership.

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