Under the agreement, Seoul Metro will work together with municipal authorities in Da Nang city on construction of the new railway, development of transport systems, and establishing plans for operation and maintenance of the line.

In addition to the signing, representatives of Seoul Metro held meetings with staff from Da Nang’s transport, planning and investment, and construction departments. In order to move forward with the project, both parties will carry out a joint site investigation and hold a review meeting for Da Nang’s overall public transport plan.
In 2015 Seoul Metro supported Ho Chi Minh City in the selection of preferred alignments for metro lines. In 2017 the operator carried out a feasibility study Ho Chi Minh City Line 4 and acted as consultant for an operations and maintenance plan.