A. Overall Environmental Engineering & Consultant     a. Engineering & Project Management     b. Environmental Management Services B. Management for Municipal Solid Wastes     a. For Most Suitable Korean MSW Treatment     b. For Recycling Valuable Materials     c. Biogas(Anaerobic Digestion & Landfill Gas) Utilization     →Clean Development Mechanism Project C. Waste Water Treatment     a. Struvite (Phosphorus Removal)→Manure     b. Leachate Treatment D. Sludge Treatment     a. Deep shaft oxidation process     b. Sludge from sewage, night-soil, etc E. Hospital Waste Treatment     a. Overall management     b. Integrated Treatment Facilities