Greensys Co.,Ltd is a registered company in water quality control business. We product patent the functional media and have patent technology of vertical sewage and waste water filtration treatment. Our main business is building plants for sewage and waste water filtration treatment.

Our company had about 1.2 billion won sales in 2004. We built plants of 50ton-scale waste water filtration treatment and exported media(GREENBALL) to Beijing City in China. They take part (industry-university cooperation with Inje university's the basin of the Nagdong-river environment research center) in our company's environmental technology development plan (project name: algae eliminating technology and functional material development for enhanced water filtration efficiency.) and it's ongoing.  

Though our company located in Jinrye-myeon, Gimhae City, Gyeongnam, is small business, our patent technical know-how have concluded technology agreement with Kijang-Gun, Busan City at home and we have signed projects (500ton-scale, 10.000ton-scale waste water treatment system to villages, plants) with Zaozhuang City, Shandong, China at abroad. Our company have a great vision of water quality control and environmental field over the future.