Oiltek International Limited is an established Singapore-incorporated integrated process technology and renewable energy engineering solutions provider headquartered in Selangor, Malaysia, and operating as a subsidiary of Koh Brothers Eco Engineering Limited. Founded in 1980 through its principal operating subsidiary, the company provides end-to-end engineering, procurement, construction, and commissioning (EPCC) services alongside proprietary process technologies across the edible and non-edible oil refinery, renewable energy, and oleochemicals industries globally. The company operates through three primary business segments: Edible & Non-Edible Oil Refinery, Renewable Energy, and Product Sales and Trading. Its Edible & Non-Edible Oil Refinery segment designs and delivers physical and chemical refining plants; dry and solvent fractionation facilities; neutralization, degumming, and bleaching systems; deodorization and deacidification plants; dewaxing and winterization units; margarine, shortening, and specialty fats processing lines; and palm kernel oil extraction plants. Its Renewable Energy segment engineers and constructs biodiesel processing plants; multi-feedstock and enzymatic biodiesel facilities; winter fuel production plants; advanced pre-treatment systems for sustainable aviation fuel (SAF) and hydrotreated vegetable oil (HVO) feedstocks; and industrial biogas recovery and bio-methane capturing systems. Its Product Sales and Trading segment provides specialized process equipment; proprietary machinery components; automated process control systems; replacement spare parts; process chemicals and bleaching earth; and value-added plant retrofitting, revamping, debottlenecking, troubleshooting, and preventive maintenance services. The company serves multinational agribusinesses, edible oil processors, plantation groups, energy corporations, and industrial chemical manufacturers across more than 30 countries spanning Asia, Europe, Africa, and the Americas. In recent corporate developments, the company has actively advanced its proposed listing transfer from the SGX Catalist sponsor-supervised board to the Mainboard of the Singapore Exchange Securities Trading Limited (SGX-ST) to broaden institutional investor reach and improve trading liquidity; secured record-high multi-million dollar EPCC contract wins across Southeast Asia, South America, and Africa; expanded its proprietary process offerings into advanced SAF and HVO feedstock pre-treatment technologies to capitalize on global aviation decarbonization mandates; and broadened strategic collaborations with international clean energy developers to deploy next-generation enzymatic biodiesel and bio-refinery solutions.