EN3 Co., Ltd. is a Korea-based company mainly engaged in the manufacture of fire trucks and fire fighting products. The Company produces spring cooler heads, alarm valves, deluge and pre-action valves, drain valves, hoses, hose couplings, pressure tanks, concealed connections, fire extinguishers, flow meters, underground hydrants, outdoor hydrant cabinets, indoor hydrant cabinets, water tank cars and others under the brand name EN3. It also involves in the development of bioethanol in Indonesia.