Group 1 - China United Network Communications Group Co., Ltd. has obtained a patent for a "Photovoltaic Roof System," with authorization announcement number CN116145909B, applied for on December 2022 [1] - China United Network Communications Group Co., Ltd. was established in 1994, located in Beijing, primarily engaged in telecommunications, broadcasting, television, and satellite transmission services, with a registered capital of approximately 10.48 billion RMB [1] - The company has invested in 34 enterprises, participated in 3,281 bidding projects, holds 3,738 trademark records, and has 5,000 patent records, along with 11 administrative licenses [1] Group 2 - China Xunyi Postal and Telecommunications Consulting Design Institute Co., Ltd. was established in 1991, located in Beijing, primarily engaged in software and information technology services, with a registered capital of approximately 573.33 million RMB [1] - The company has invested in 15 enterprises, participated in 5,000 bidding projects, holds 97 trademark records, and has 1,375 patent records, along with 20 administrative licenses [1]