PT Grand Kartech Tbk is an Indonesia-based company primarily engaged in industrial machinery engineering, manufacturing and assembling. Its major product is boiler, including packaged boiler, coal boiler, biomass boiler and packaged hot water boiler. Some brand names of its boilers are Hoken Boiler, Primatron Steam Boiler and Pyronette-Primatron Hot Water Boiler. It also manufactures equipment for oil and gas industry, such as separation unit and glycol dehydration unit; bare equipment, such as pressure vessel and storage tank; fired heater; waste heat recovery unit, and power generation water tube boiler. The Company manufactures customized machinery and offers after-sales services as well. Its business is classified into three operating segments: engineering and manufacturing, comprising the sales of its products; trading, comprising the sales of the spare parts of the machinery it produces, and lease, comprising the revenue from leasing its machinery and equipment.