2. China Southern Airlines Group Co., Ltd. headquartered in Guangzhou was formally established on 1 991February1. With the blue vertical tail inlaid with red kapok as the company logo, it is the airline with the largest number of transport planes, the most developed route network and the largest annual passenger traffic in China. China Southern's annual passenger traffic ranks first in Asia and third in the world. With the largest fleet in Asia and the fourth in the world, it is the first airline in the world to operate Airbus A380 and Boeing 787 at the same time. It is the airline with the largest number of flights, the densest route network and the largest annual passenger traffic in China.