Group 1: IPO Guidance and Trends - In May, the China Securities Regulatory Commission (CSRC) disclosed 17 companies undergoing IPO guidance, bringing the total for 2025 to 123 companies [1] - The number of newly disclosed companies for guidance in May decreased compared to the previous months, with 32, 29, 23, and 22 companies in January to April respectively [1] - Notable companies disclosed in the last week of May include Huaxin New Materials, Tianhai Fluid Control, Chengdu Ultra-Pure Materials, and Chengfeng Technology [1] Group 2: Huaxin New Materials - Huaxin New Materials is the fourth globally and the first domestically to achieve mass production of high-performance polyimide (PI) films, filling a domestic gap and achieving import substitution [2] - The company was established in 2019 with a registered capital of 105 million yuan and has undergone five rounds of financing, attracting investments from notable institutions such as CRRC Capital and National Development Bank [3][4][5][6] - The company completed its IPO guidance registration with Guotai Junan Securities on May 28 [2] Group 3: Tianhai Fluid Control - Tianhai Fluid Control submitted its IPO guidance materials to the Anhui Securities Regulatory Bureau on May 21, with the application accepted on May 28 [7][8] - The company, established in 2012, has seen revenue growth from 2022 to 2024, with figures of 202 million yuan, 253 million yuan, and 287 million yuan respectively, showing year-on-year growth rates of 32.4%, 25.2%, and 13.3% [9] - Tianhai Fluid previously submitted an IPO application in December 2023 but was not accepted due to issues related to shareholding [9] Group 4: Chengdu Ultra-Pure Materials - Chengdu Ultra-Pure submitted its IPO guidance to the Sichuan Securities Regulatory Bureau on May 30, which was accepted [10] - Established in 2005, the company specializes in semiconductor etching devices and high-power laser devices, with a focus on advanced surface treatment processes [10] - The company has completed four rounds of financing, with significant participation from investors including BYD and TCL Venture Capital [11][12] Group 5: Chengfeng Technology - Chengfeng Technology submitted its IPO guidance materials on May 29, which were accepted by the Sichuan Regulatory Bureau [13] - The company, founded in 2009, specializes in the research, manufacturing, and sales of valves, with a significant portion of its revenue coming from domestic sales [14][15] - Despite a decline in net profit over the past two years, the company remains a key player in the valve market, ranking third in the sales of certain valve types [15]