Group 1 - Liu Wenchao, born in 1971, has been the Chairman and General Manager of Xizi Elevator Technology Co., Ltd. since 2003, leading the company for 22 years and transforming it from a regional brand into a nationally recognized elevator manufacturer [2][6] - Xizi Elevator, established in 1997, specializes in the research, manufacturing, sales, installation, and after-sales service of elevators, escalators, and moving walkways, holding national A-level manufacturing and installation qualifications [4] - The company operates over 30 direct subsidiaries and more than 500 sales and service outlets across China, exporting products to over 80 countries and regions, and has undertaken significant projects like the Shanghai Bund International Financial Service Center [4] Group 2 - Liu Wenchao is recognized as a visionary leader who emphasizes technological research and development, attracting top industry talent and overcoming technical challenges to advance elevator products' intelligence, efficiency, and safety [6] - He has actively participated in the formulation and revision of industry standards, contributing to the elevator industry's standardized and healthy development, and has a notable presence in industry conferences [6] - The sudden passing of Liu Wenchao has caused significant shock within the industry, with many colleagues and partners expressing their disbelief and sorrow over the loss of such a prominent figure [7][9]