Chongqing Iron and Steel Company Limited (SEHK: 1053,SSE: 601005), or CISC is an iron and steel manufacturing state-owned enterprise in Chongqing, China.

Formerly "Hanyang Iron Plant" in Wuhan, it was established in 1890 during the Qing dynasty by Zhang Zhidong, the governor of Hu-Guang Area (now separately Hubei, Hunan and Guangdong).

It, together with Daye Iron Mine and Shanghai Steel Plant, was relocated to Dadukou, Chongqing in 1938 during the Second Sino-Japanese War.

After 1949, the plant had been renamed as "Chongqing Iron and Steel (Group) Company".

[1] Its H shares were listed on the Hong Kong Stock Exchange in 1997,[2] while its A shares were listed on the Shanghai Stock Exchange in 2007.