Line 12 (Zhengzhou Metro)
Line 12 of the Zhengzhou Metro () is a rapid transit line currently under construction in Zhengzhou, Henan Province, China. Phase 1 of Line 12 will be  long with 11 stations. Stations (Southwest to Northeast)

History
Phase 1 of Line 12 was approved by NDRC on 29 March 2019. It is planned to open in December 2023. References

Zhengzhou Metro lines
Proposed railway lines in China