Hà Nội Metropolitan Railway Management Board (MRB) Tunnel Boring Machine number one (TBM 1) started bore on 30 July. TBM 1 (also name Thần tốc) start at the S9 - Kim Ma station (17.8 m. under ground). After 200 metre, TBM 2 (also name  Táo bạo) start bore. Baogiaothong vn write.

Boring will last 16 month. It is in project Urban railway project No. 3, Nhon - Hanoi Station. Total route 12.5 km long. 4 Kilometre is underground. In the route there are 8 over ground stations and 4 under ground stations.

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