Group 1 - The State Intellectual Property Office of China has granted a patent for a method and system for constructing three-dimensional models of photovoltaic brackets based on aerial images to China Electric Power Construction Group East Survey and Design Institute Co., Ltd. [1] - China Electric Power Construction Group East Survey and Design Institute Co., Ltd. was established in 1993, located in Hangzhou, with a registered capital of 2,574.63 million RMB. The company has invested in 197 enterprises and participated in 5,000 bidding projects, holding 155 trademark records and 5,000 patent records, along with 254 administrative licenses [1]. - Zhejiang East Engineering Construction Management Co., Ltd., established in 2013 and also located in Hangzhou, has a registered capital of 500 million RMB. The company has invested in 7 enterprises and participated in 932 bidding projects, holding 27 trademark records and 1,185 patent records, along with 107 administrative licenses [1].