Group 1 - China Petroleum & Chemical Corporation (Sinopec) has applied for a patent for a system and method to produce low-sulfur coke with high yield, published as CN120290217A, with an application date of January 2024 [1] - The patent involves a heating furnace with at least one convection chamber and one radiation chamber, a reactor, a buffer tank, and at least one coke tower, designed to mix ethylene tar and catalytic oil slurry for efficient processing [1] Group 2 - China Petroleum & Chemical Corporation was established in 2000, located in Beijing, primarily engaged in oil and gas extraction, with a registered capital of approximately 12.17 billion RMB [2] - Sinopec has invested in 263 companies, participated in 5,000 bidding projects, and holds 5000 patent records along with 45 trademark records [2] - Sinopec Engineering Group Co., Ltd. was founded in 2007, also based in Beijing, primarily involved in water management, with a registered capital of approximately 441.85 million RMB [2] - Sinopec Engineering has invested in 12 companies, participated in 63 bidding projects, and holds 5000 patent records along with 4 administrative licenses [2]