Group 1 - The State Intellectual Property Office of China has granted a patent for "a selective adsorbent for carbon dioxide and its preparation method" to China Building Materials Science Research Institute Co., Ltd. and China National Building Material Group Corporation, with the announcement number CN117718023B and application date in December 2023 [1] - China Building Materials Science Research Institute Co., Ltd., established in 2000 and located in Beijing, focuses on technology promotion and application services, with a registered capital of 2,717.0456 million RMB. The company has invested in 36 enterprises, participated in 1,301 bidding projects, holds 22 trademark records, 2,154 patent records, and has 77 administrative licenses [1] - China National Building Material Group Corporation, founded in 1981 and also based in Beijing, primarily engages in wholesale activities, with a registered capital of 17,136.1463 million RMB. The company has invested in 20 enterprises, participated in 5,000 bidding projects, holds 241 trademark records, 781 patent records, and has 5 administrative licenses [1]