PT. SINARFAJAR CAHAYA SURYATAMA (Zetka Inc Group) is a national company, based in Jakarta, which was established to provide material in the form of Fly Ash and Bottom Ash. Fly ash and Bottom Ash is produced from coal combustion of unit power plant and several other industrial coal users.PT. SINARFAJAR CAHAYA SURYATAMA (Zetka Inc Group) capsule has a fleet of trucks and dump trucks in sufficient quantities, as well as operational management is run by a group of people who are experts in their fieldsWith the support of fleet management and operational reliability We can help minimize the risk of environmental impacts caused by the burning of coal waste. Coal combustion is called fly ash can be used in particular for the cement industry and construction, while the bottom ash can be in use as an alternative fuel in cement industry