Has Zhengzhou Metro 15 been approved?

According to relevant information, Zhengzhou Metro 15 Line was approved. By querying Zhengzhou local treasure network, click Zhengzhou Traffic >; When will Zhengzhou Metro > Zhengzhou Metro 15 Line > Zhengzhou Metro 15 Line be opened? We can know that Zhengzhou Metro 15 Line has been approved and is expected to be completed and opened before 2050. Zhengzhou Metro 15 Line is the urban express line No.8 (R8) planned in Zhengzhou Rail Transit Network Planning Revision (20 15~2050). The starting station is Mazhai Station, and the final station is Xinmi Station, with a length of 37.4km. * * There are 9 stations with a distance of 4.7km, and the function is positioned as a city.