Group 1 - The State Intellectual Property Office of China has published a patent application titled "A Research Method and System for Carbon Emission Influencing Factors and Reduction Pathways" by China Construction Second Engineering Bureau Installation Engineering Co., Ltd., Beijing Urban Construction Group Co., Ltd., and China Construction Second Engineering Bureau New Type Prefabricated Building (Hebei) Co., Ltd. The application date is April 2025 [1] - The patent involves a method for carbon emission management, which includes generating a carbon emission influence matrix based on influencing factors, standardizing the matrix, calculating a comprehensive influence matrix, and determining reduction pathways through hierarchical analysis [1] - The invention aims to achieve refined and phased management of carbon emission control by designing reduction pathways for different stages [1] Group 2 - China Construction Second Engineering Bureau Installation Engineering Co., Ltd. was established in 1988, located in Beijing, with a registered capital of 500 million RMB. The company has participated in 2,325 bidding projects and holds 838 patents [2] - Beijing Urban Construction Group Co., Ltd. was founded in 1993, also in Beijing, with a registered capital of 750 million RMB. The company has invested in 117 enterprises and participated in 5,000 bidding projects, holding 1,976 patents [2] - China Construction Second Engineering Bureau New Type Prefabricated Building (Hebei) Co., Ltd. was established in 2022 in Langfang, with a registered capital of 10.38158 million RMB. The company holds 3 patents and 1 administrative license [2]