History Our Management Team Facility ISO   Civil Work Mechanical Work Projects Reference Projects Under Construction   Safety Awareness Environment Awareness   Good Corporate Governance Policies The Principles of Good Corporate Governance Qualifications, Structures, Components, and Performance of The Board of Directors Business of Ethics   Shareholders Meeting Analyst Meeting Shareholders Structure Investment in Other Companies Form 56-1 Annual Report Financial Highlight Financial Statement Set Index Stock Research         Waste Water Collection and Treatment System Phase 2 Project : Waste Water Collection and   Treatment System Phase 2 Client : Municipal of Nakornrajsrima City Location : Nakornrajsrima, Thailand