· Renewal of Project engineering certificate Class A for environment protection in May, 2005
 · Ranked in the position 38 in both “Top 100 2003 Construction Turnkey-Contracting” and “Ranking for construction project management 2003” issued by CEDA and CAIEC on December 31, 2004 as per the business amount for construction project management and construction turnkey-contracting
 · Renewal of Project engineering certificate Class A in Jan., 2005
 · Acquired qualification certificate Class A for the Supervision Center in Nov., 2004