Tadoa Ando and Koen Olthuis at Conference in China
Boao Hainan, China, 23 November 2010.
Tadao Ando and Koen Olthuis both giving a speech at the Water and Sustainability Conference in Boao Hainan, in China.
Trade mission to China
Koen Olthuis has joined the official and economic delegation of province South Holland to China.