Ocean Sky International Limited is a Singapore-based construction and property company. The principal activity of the Company is that of an investment holding company. The Company's businesses include construction and engineering, which is engaged in the civil engineering, construction and related services business, and property, which is engaged in the business of property development, investment and management. It is involved in the construction and engineering business through its civil engineering and construction subsidiary, Ang Tong Seng Brothers Enterprises Pte Ltd (ATS). ATS provides civil engineering services including earthwork, roadwork, drainage work, basement work and structural works involving demolition and underground infrastructure as well as other general building works. It is involved in development projects in both Singapore and Cambodia through its subsidiaries and joint venture partners. In addition, the Company has investment properties in Melbourne, Australia.