YLI Holdings Berhad, an investment holding company, manufactures and trades in ductile iron pipes, steel and plastic pipes and fittings, and waterworks related products for the waterworks and sewerage industry in Malaysia, Singapore, and Vietnam. It operates through Manufacturing and Trading; and Construction and Project Management segments. The company offers ductile iron fittings, including bends, duckfoot bends, tees, and concentric tapers under the brand name YL; mild steel pipes and fittings under the brand name Laksana Wibawa; and HDPE and MDPE pipes under the brand name MRPI. It also engages in manufacture and coating of lusantm on couplings, tapping sleeves, water tanks, and other steel products, as well as trading uPVC pipes and fitting, sanitary, fitting, brass fitting, and related products, as well as metal and non-metal waste and scrap. Further, the company offer construction and project management services, as well as engages in property investment business. The company was founded in 1966 and is headquartered in Kuala Lumpur, Malaysia.