"Invitational for BIM Application and Theory" Tongji University School of Economics & Management,Shanghai China

"Energy BIM Semina" Design computing Lab. / Building Technology Lab., School of Architecture, Georgia Technology, Georgia, USA

"BIM in Korea" buildingSMART BIM International Conference 2011, BCA, Singapore

"BIM Activities in Korea" Gloden Technology Workshop, Gloden, China

"The Strategic Guide to Implement BIM in Construction Industry" BUILD SMART Conference 2011,Singapore

"BIM in Korea" buildingSMART IUG meeting 2011, Abu Dhabi, UAE

"Open BIM based design guidelines & Design Quality Evaluation in Korea" BIPS Conference, Denmark

"Public Owners Activities in Korea" Global Summit on Sustainable Built, Better Building Better World,Shanghai, China