Hongkong Post Tuesday announced that a set of special stamps on 'Hong Kong's Participation in Expo 2010 Shanghai China' will be released on April 27. The Shanghai Expo with the theme 'Better City, Better Life' will be held from May 1 to Oct. 31. Hong Kong is participating in this event of international significance and has set up a pavilion to promote some of its unique attributes as Asia's world city. To mark this memorable occasion, a set of four stamps on the concept of 'Hong Kong -- Potential Unlimited' will be produced. It integrates a captivating view of Victoria Harbor as background with pictorial images of a dragon dance, a green leaf, the Tsing Ma Bridge and a smart card. This design underscores the allure of Hong Kong as a metropolis with a pluralist culture, sustainable development, global connectivity and vibrant creativity. Apart from the stamps and souvenir sheet, a new philatelic product made up of four adjoined souvenir sheets will be introduced by Hongkong Post to symbolize the convergence of visitors from around the world in Shanghai. 