Koh Brothers Eco Engineering Limited, KB Eco is a public limited company incorporated in Singapore and was listed on the Catalist Board of the SGX-ST on 27 February 2006. KB Eco and its subsidiaries are a sustainable engineering solutions group that provides building and civil engineering construction and infrastructure works; engineering, procurement and construction services for the water and wastewater treatment and hydro-engineering sectors; and design, build and installation services for the bio-refinery and bio-energy sectors.