The fourth edition of Eco Expo Asia, Hong Kong’s only trade fair devoted to the Asian environmental protection industry, ended successfully on 31 October 2009 at AsiaWorld-Expo. The four-day event attracted 10,102 visitors from 105 countries and regions, demonstrating a massive 67% increase in attendance on last year. Of these 4,371 were overseas visitors, accounted for 43.3% of the overall attendance at the fair. The 2009 edition drew together 200 exhibitors from 19 countries and regions, which was also up significantly from 2008 by 63%.