Goodwin PLC is a holding company. The Company operates through two segments: Mechanical Engineering, which is engaged in casting, machining and general engineering, and Refractory Engineering, which is engaged in powder manufacture and mineral processing. The Mechanical Engineering segment produces a range of dual plate and axial nozzle check valves to serve the oil, petrochemical, gas, liquefied natural gas and water markets. Its mechanical engineering markets also include high alloy castings, machining and general engineering products, which form part of construction projects, such as power generation plants, oil refineries, high integrity offshore structural components and bridges. Within the Refractory Engineering segment, through its subsidiary, Goodwin Refractory Services (GRS), it focuses on developing, manufacturing and selling investment casting powders, waxes, silicone rubber and machinery for use in various operations, such as jewelry casting, aerospace and tire molding.