天溯计量IPO过会，公司业绩增长是否具有可持续性被追问

Core Viewpoint - Shenzhen TianSu Measurement and Testing Co., Ltd. has successfully passed the IPO review on the ChiNext board, aiming to raise approximately 424 million yuan for various projects and working capital [1] Company Overview - TianSu Measurement specializes in measurement calibration, testing, and certification services, serving multiple sectors including biomedicine, automotive, new energy, rail transit, energy and electricity, light industry, and equipment manufacturing [1] IPO Details - The IPO application was accepted on June 29, 2023, and entered the inquiry stage on July 22, 2023 [1] - The company plans to invest the raised funds in enhancing measurement and testing capabilities at its Shenzhen headquarters, building regional measurement testing laboratories, establishing a digital center, and supplementing working capital [1] Industry Considerations - The listing committee has requested TianSu Measurement to address the implications of its high sales expense ratio and low R&D investment intensity in relation to industry technological upgrades and the sustainability of its performance growth [1]