JGC Holdings Corporation, together with its subsidiaries, provides engineering, procurement, and construction services. It operates in two segments, Total Engineering and Functional Materials Manufacturing. The company is involved in the design, procurement, construction, and performance test services of plant and machinery for petroleum, petroleum refining, petrochemicals, gas, chemicals, nuclear energy, metal refining, biochemical, food, pharmaceuticals, procurement, logistics, medical, information technology, environment conservation, and pollution control. It also manufactures and distributes chemicals and catalyst products, including FCC catalysts, hydrotreating catalysts, deNOx catalysts, petrochemical catalysts, etc.; functional material products, such as colloidal silica, coating materials for surface treatment, material for semiconductors, cosmetic products, etc.; and fine ceramic products.