Description : Steel Bridge Supervision Service for Yongma Tunnel Private Invested Project Bridge Name : Achiyule-Gyo Owner : Seoul Metropolitan Government Client : Gyoengdong Engineering Co., Ltd. Prime Vendor : Namhae Steel Co., Ltd. Remarks : Type of Bridge : Arch, Steel Weight : 1973Ton, Duration  : Feb. 2013. ~ Dec. 2013, Constructor : SK E&C

Description : Steel bridge Inspection service for Nakdong river estuary barrage construction project Bridge Name : Maintenance Bridge for water gate Owner : Korea Water Resources Corporation Client : Samsung Corporation Prime Vendor : Dongbu Corporation Co., Ltd. Remarks : Period: Apr.2011~ Jan. 2012 Spec: Nielsen arch type, length 100m, width 52.5m, total weight 2,709 ton

Description : Inspection service of Amsa Grand Bridge during erection stage Bridge Name : Amsa Grand Bridge Owner : Seoul Metropolitan City Client : Korean Erection Co., Ltd. Prime Vendor : Hyundai Steel Ind. Co., Ltd. Remarks : • Period : June 2009 ~ Dec. 2010  • Spec : nielsen arch type bridge