In 2005 HHF were invited to design a contribution to the "Jinhua Architecture and Arts Park" for the Hong Kong & Shenzhen Bi-City Biennale of Urbanism/Architecture.
2005 werden HHF eingeladen einen Beitrag zum „Jinhua Architecture and Arts Park“ für die „Hong Kong & Shenzhen Bi-City Biennale of Urbanism \ Architecture“ zu bauen.