Rolls-Royce: A British multinational engineering company, Rolls-Royce Holdings plc specialises in designing, manufacturing, and distributing power systems for safety-critical applications across aerospace, marine, and land. Headquartered in London, with significant operations in Derby, the company is a leading global supplier of civil and military aero engines, including the Trent series, and marine propulsion systems. They serve airlines, defence sectors, and various industries, focusing on innovation, efficiency, and sustainability. Rolls-Royce is a potential Western engine supplier for Comac’s C929.