SINGAPORE - Koh Brothers Eco Engineering said its subsidiary, Koh Brothers Building & Civil Engineering Contractor, has been awarded a S$225.4 million contract related to the building of Circle Line 6 (CCL6) MRT project.

The 4km CCL6 comprises three stations that will close the loop for the Circle Line by connecting the HarbourFront and Marina Bay stations.

The subsidiary's work scope under the contract awarded by the Land Transport Authority involves all civil, structural, architectural, electrical & mechanical and system works relating to the construction of cut-and-cover tunnels and other structures from the east of the planned Prince Edward Station to the existing Marina Bay Station.

Work will commence by end-2017 and the project is expected to be completed by 2025.

Koh Brothers Eco chief executive officer Paul Shin said the award of the contract was "a significant win for Koh Brothers Eco, and a testament of the authorities' confidence in our capabilities amidst the project's challenges, including carrying out works in the densely populated Marina Bay area".

He added: "CCL6 will also interface with the Deep Tunnel Sewerage System and other PUB sewerage works, which we are confident of navigating well given our familiarity and rich experience in civil engineering and drainage works."

The project will lift the group's order book to S$696.9 million.

Koh Brothers Building was involved in the construction of the Outram Park station on the North East Line, as well as civil works for the Downtown Line Bugis station.

Its other projects in the Marina Bay area include the construction of the iconic Marina Barrage that was completed in 2008.