Since established in 1975, as a manufacturer of eco-friendly functional fertilizers in Korea, Choong Ang Plaza have worked closely with farmers across the nation for over 30 years. The production of eco-friendly crops is getting competitive in the agricultural market. Hence, research staffs of Choong Ang Plaza will make strenuous efforts in the development of eco-friendly functional fertilizers for the improvement of crop quality as well as control of pest and disease to be of good service to farmers.