PT Jacko Eco Technologies (Jacko) is a key holding subsidiary of Jiangsu Jacko Environmental Technology Co. , Ltd. (China) , headquartered in Jakarta, Indonesia. The company specializes in the production, sales and service of circulating cooling water engineering and other kinds of energy-saving and environmental protection products. Through the efficient integration of high-quality resources from scientific research institutes, manufacturing enterprises and industry experts in the water treatment and environmental protection industry in China, Jacko's core business covers design, sales and service of water treatment chemicals, water treatment equipment and various water treatment environ mental protection projects. The company holds a number of patents for inventions and utility models. Among them, some technologies take the lead of the whole industry, such as the technology of water-saving, fog-eliminating and noise-reducing in cooling water engineering, energy-saving in cooling system, integrated sewage treatment unit, remote monitoring and control of chemical dosing in circulating cooling water system, on-line/off-line cleaning technology of reverse osmosis system, etc.