People's Republic of China

Operating Lines

Anshan
Beijing
Changchun
Chongqing
Dalian
Guangzhou
Hong Kong
Shanghai
Tianjin
Wuhan

Planned or Under Construction

Chengdu
Harbin
Hangzhou
Kunming
Macao
Nanjing
Qingdao
Shenyang
Shenzhen
Suzhou
Weihai
Wuxi
Xi'an
Zhengzhou

Line 2 of the Xi'an subway is currently under construction and is expected to open for business in 2010. It consists of 26.4 km and 20 stations. 2.9 km will be above ground. When finished, the system 2ill have 4 lines totaling 144.27 km.

Wikipedia page