In April 2017 State Railway of Thailand (SRT) awarded a consortium of Mitsubishi Heavy Industries, Hitachi, and Sumitomo a Baht 32.4bn ($US 1.06bn) turnkey electrical and mechanical contract for the 26.4km Red Line North from Bang Sue to Rangsit and the 14.6km Red Line West from Bang Sue to Taling Chan.

Hitachi is supplying 25 EMUs (130 cars) for the project, with Thales providing ETCS Level 1 onboard units for the fleet.

The first two trains are due to arrive in Bangkok next month, with testing scheduled to begin in January 2020. Both the northern and the western sections of the Red Line are due to open next year.