Based on environmental and bio-engineering technologies, Doosan Ecobiznet has been pursuing sustainable organic farming and clean environment and provided the organic farming programs related to the product group including microbial materials and functional substances, which have made eco-friendly, organic farming possible in the areas of aquaculture, stockbreeding and agriculture. Particularly, we have developed the patented technology for high-density pure mass culture of photosynthetic bacteria having excellent environmental purification ability and the applicable technologies such as manufacturing of culture system, immobilization of carriers, freeze concentration and freeze-drying and trying to enter the overseas market through these differentiated qualities of technologies. We have make a considerable contribution to the preservation of the ecological environment by developing an eco-friendly water purification technology(B&P system) of lake water that purifies its water quality and sediments at the same time and even removes odors. We are also continuously making efforts in the research and development of high value-added business such as the production of various physiologically activating substances from microbes and discovery of natural substances to replace antibiotics. It is no exaggeration to say that the forecasting of rapidly changing domestic and global economic situations is not possible. We are faced with too many obstacles before us. Nevertheless, our young enterprise, Doosan Ecobiznet will continuously challenge and achieve 'a bigger dream' for a global blue chip company, based on a new growth engine of bio-environmental business in the age of low carbon and green growth.