Line 1 1. The subway station of Qingdao International Convention and Exhibition Center is located in Laoshan District, Qingdao. It is a subway station managed by Qingdao Metro Group Co., Ltd. and belongs to Metro Line 1 1. Qingdao Metro 1 1 Line is the third subway line built and put into operation in Qingdao, Shandong Province, China. 20/kloc-0 was put into operation on April 23rd, 2008, and the logo color was metallic blue.