road. Cross-border activities Due to their proximity to the Shenzhen border, towns in the northern parts of Hong Kong, notably Sheung Shui and Yuen Long, have become hubs for parallel traders who have been buying up large quantities of goods, forcing up local prices and disrupting the daily lives of local citizens. Since 2012, there has been a vertiginous increase in mainland parallel traders arriving in the North District of Hong Kong to re-export infant formula and household products – goods popular with mainlanders – across the border to Shenzhen. Trafficking caused chronic local shortages of milk powder in Hong Kong, forcing the government to impose restrictions on the amount of milk powder exports from Hong Kong. The first anti-parallel trading protest was started at Sheung Shui in September 2012. As government efforts to limit the adverse impact of mainland trafficking were widely seen as inadequate, so there have been further subsequent protests in towns in the North District including Sheung Shui. See also Fanling Long Valley References 2007. 2007 Hong Kong Map. Easy Finder Ltd. External links Sheung Shui, North District A review of Sheung Shui