Group 1 - China Petroleum & Chemical Corporation (Sinopec) has applied for a patent related to resin compositions and their applications, indicating a focus on innovation in epoxy resin modification and preparation [1] - The patent application includes a resin composition that features components A and B, with specific chemical compositions aimed at enhancing flame resistance, heat resistance, and mechanical properties [1] - The resin composition contains phosphorus content of 0.3wt% to 0.7wt%, nitrogen content of 8wt% to 15wt%, and silicon content of 0.3wt% to 0.8wt%, showcasing a well-balanced formulation for performance [1] Group 2 - Sinopec was established in 2000 and is primarily engaged in oil and gas extraction, with a registered capital of approximately 12.17 billion RMB [2] - Sinopec has made investments in 263 companies and participated in 5000 bidding projects, indicating a strong market presence and operational scale [2] - Sinopec Shanghai Petrochemical Company, founded in 1993, focuses on oil, coal, and other fuel processing, with a registered capital of approximately 1.08 billion RMB and extensive administrative licenses [2]