The Hungry Ghost Festival, or Yu Lan, is a particularly popular time for joss paper burning in Hong Kong, though road-side offerings can be seen daily around the city. This shop had been trading for over 30 years. There are a cluster of joss paper shops around 160 Queen’s Road West in Sai Wan. July 8, 2013 at 10:49 pm man. Mobile phones use embedded systems to control operation.