Group 1 - A new company, Suzhou Xunjing Tongguang Communication Co., Ltd., has been established with a registered capital of 2 million RMB [1] - The legal representative of the company is Zhang Guanming [1] - The company's business scope includes manufacturing and sales of optical communication equipment, communication equipment, optoelectronic devices, and electronic components [1] Group 2 - The company is also involved in the sales of fiber optic cables, industrial automation control systems, and various mechanical parts [1] - Additional services offered by the company include technical services, development, consulting, and technology transfer [1] - The company operates under the principle of conducting business activities independently as per its business license [1]

Group 1 - The establishment of Risheng Technology (Changzhou) Co., Ltd. has been recently reported, with a registered capital of 20 million yuan [1] - The legal representative of the new company is Si Rongzhu, indicating a formal leadership structure [1] - The business scope includes manufacturing and sales of pumps and vacuum equipment, as well as optical communication equipment [1] Group 2 - Risheng Technology is wholly owned by Riying Electronics (603286), highlighting a direct corporate relationship [1]