- New Yok
U.S.A. - PERIOD 2009.8.11 ~ 8.21
2011.7.28 ~ 8.26- - Environmental Seminar at the City Hall of New York
- - Visit to UN
- - tour the Environmentally Friendly Buildings
- - Environmental Seminar at the City Hall of New York, Propagated C40
Gallery
U.S.A.