Mencast Holdings Ltd., an investment holding company, provides engineering and maintenance, repair, and overhaul solutions in Singapore, rest of Asia, and internationally. It operates through Offshore and Engineering, Marine, and Energy Services segments. The Offshore and Engineering segment offers inspection, maintenance, and fabrication of offshore structures, as well as engineering and other onshore structures-related services to the construction and infrastructure, oil and gas, energy and utilities, and water treatment and reclaim sectors. This segment also provides design, procurement, fabrication, and installation of structural and precision engineering systems and plant services.