Ocean Sky International Ltd is an investment holding company engages in civil engineering, construction, and related services businesses. It operates through the Construction segment, and Property segment. The Construction segment which contributes the majority of revenue involved in the business of building and civil engineering contractors. The property segment is in the business of leasing of properties and developing of properties. The company offers engineering services, such as earthwork, roadwork, drainage work, basement work, and structural works comprising demolition and underground infrastructure works, as well as other general building works.