Founded in 1968, Three Sinha, a household name in Sri Lanka, has an impressive name in Sri Lanka, has an impressive 40-years legacy of partnership with our customers, solving their toughest problems in the steal building industry. We are proud of our reputation as a solution and as a solution provider and as an innovator and our corporate culture is based on dedication, respect, and continuous improvement. We have ventured and our corporate culture is based on dedication, respect, and continuous improvement. We have ventured in to diverse areas in the construction industry such as steel Building and Roofing, Roller Doors and Roller Shutters, Steel and Aluminium Fabrications, Stainless Steel Railings etc.