Group 1 - The company, Jin Chengzi, announced plans to acquire 55% of Changchun Samit Optoelectronic Technology Co., Ltd. through a combination of share issuance and cash payment, while also raising matching funds [1] - The stock of Jin Chengzi will be suspended from trading starting July 31, with an expected suspension period of no more than 10 trading days [1] - The transaction is preliminarily set to involve multiple shareholders of Samit, including Wang Yongyang and Huang Meng, and is not expected to constitute a major asset restructuring as per regulations [1] Group 2 - Jin Chengzi is a leading company in the domestic laser processing control systems sector, focusing on automation and intelligent development in advanced laser manufacturing [2] - The main business includes the research and sales of laser processing equipment motion control systems and components, providing comprehensive solutions and technical services for various laser processing scenarios [2] - In Q1 of this year, Jin Chengzi achieved operating revenue of 64.3681 million yuan, a year-on-year increase of 30.10%, and a net profit attributable to shareholders of 11.9682 million yuan, up 73.01% [2]