As specialists in tunnel construction, we provide a range of services, including the planning of new roads for local and regional government and expressway operators, and the planning of new line and line extensions for railway operators.

Maintenance of water supply and sewerage systems to prevent the interruption of water supply and drainage in the event of natural disasters, including earthquakes and the construction of underground structures to prevent rivers from overflowing due to heavy rains, etc.

We also offer a range of maintenance management services including the formulation of inspection and repair plans to ensure the safe and comfortable use of infrastructure over the long term.

We work with clients on large-scale civil engineering infrastructure projects, providing support through the entire construction process.

We provide long-term technical support for overseas infrastructure projects, from survey and design to the management of construction and post construction maintenance.