UMS Holdings Limited, an investment holding company, manufactures and markets high precision front-end semiconductor components, and provides electromechanical assembly and final testing services. It operates in three segments: Semiconductor, Aerospace, and Others. The Semiconductor segment offers precision machining components and equipment modules for semiconductor equipment manufacturers. The Aerospace segment provides precision machining services for aerospace, electronics, and automotive industry. The Others segment provides water disinfection systems shipment services, as well as trades in nonferrous metal alloys and cutting tools. It also offers medical and wafer fabrication equipment, and oilfield precision component parts manufacturers; precision engineering works used in aerospace, oil and gas industries, and other general engineering and machinery works; metal finishing services, such as electroless and selective nickel, anodizing, plating, e-polish, chemical cleaning, and parts refurbishment; and system integration, refurbishment, prototyping, and vendor managed inventory services, as well as electroplating and anodizing services. The company operates in Singapore, Malaysia, Taiwan, the United States, South Korea, the People's Republic of China, and internationally. UMS Holdings Limited was incorporated in 2001 and is headquartered in Singapore.