Zhengzhou No.1 Detention Center used to have an old address at Dongsan Street and Nongye Road, and now it is the office of the Public Security Department of Zhengzhou Public Security Bureau. In the past few years, the No.1 Detention Center has been moved to the southeast of Shilihe River, that is, to the south of the Economic and Technological Development Zone (East Development Zone, not Zhengdong New District), which is far away.

Address: No.1 Detention Center of Zhengzhou Economic Development Zone Public Security Bureau

Zip code: 450000

There is basically no problem with letters!