CosmoSteel Holdings Limited, an investment holding company, sources and distributes piping system components in Singapore, Brunei, Vietnam, and internationally. It operates through Energy, Marine, Trading, and Others segments. The company offers steel pipes, fittings, and flanges; cable products; and structural beams, channels, sheets, plates, flats, and hollow sections. It also provides electrical/instrumentation cable products, including offshore drilling and marine cables power, control cable, onshore power, control and instrumentation cable, fibre optic cable, power instrument cable, and cable management products. In addition, the company offers a range of materials, such as carbon, low temp carbon, stainless, duplex, super duplex, high yield, and low alloys steels; and steel and structural products. Further, it provides customization, validation, testing, expedited delivery, and project management services. The company serves the oil and gas, engineering and construction, petrochemical, power, shipbuilding and repair, manufacturing, and pharmaceutical industries, as well as traders. CosmoSteel Holdings Limited was founded in 1984 and is headquartered in Singapore. As of August 1, 2025 CosmoSteel Holdings Limited was taken private.