Co-space is one of the branches in sharing economy. In addition to putting emphasis on sharing the fruit of our economy, it also addresses the connections among human and space. The founder of Taiwan 9floor Mr Spencer Ke, the founder of Udongsa Mr Cho Junghoon, the architect of the Hong Kong Federation of Youth Groups Mr Rick Lam and the Director of Synergy Mr Keith Wong would share their experiences and imaginations of co-space in this session.