Shanghai Airlines, the first local airline in China, has ordered five additional Boeing 757-200 jetliners for delivery in 2004 and 2005. The new airplanes will allow the carrier to meet future growth requirements. The new airplanes will bring the carrier's 757-200 fleet to 12 airplanes. Based in Shanghai, China's largest city, the carrier operates a total of 23 Boeing airplanes and serves routes throughout China and offers regional service to neighboring countries in Asia. The Boeing 757 provdes operators with superior economics and airport performance and is the world's most efficient single-aisle airplane.