Group 1 - China Petroleum & Chemical Corporation (Sinopec) has applied for a patent titled "Method, Device, Electronic Equipment, and Storage Medium for Identifying Precious Metals on Discarded Photovoltaic Panels," with publication number CN121438279A, and the application date is July 2024 [1] - The patent describes a method that utilizes computer vision technology to identify precious metals in discarded photovoltaic panels by first obtaining an image of the panel and then using a precious metal identification model to classify the types of precious metals present [1] - The identification model employs an attention mechanism and pyramid convolutional neural networks to accurately extract target features from the image, improving identification efficiency and accuracy while significantly reducing time and costs associated with the identification process [1] Group 2 - China Petroleum & Chemical Corporation was established in 2000 and is based in Beijing, primarily engaged in oil and gas extraction, with a registered capital of approximately 12.17 billion RMB [2] - The company has made investments in 269 enterprises, participated in 5,000 bidding projects, and holds 45 trademark records and 5,000 patent records, along with 41 administrative licenses [2] - Sinopec (Dalian) Petrochemical Research Institute Co., Ltd. was founded in 2022 in Dalian, focusing on professional technical services, with a registered capital of approximately 338.46 million RMB [2] - The research institute has invested in 1 enterprise, participated in 2,994 bidding projects, and also holds 5,000 patent records, along with 65 administrative licenses [2]