Capital Steel Group - better known as Shougang - was once headquartered in Shijingshan district as part of western Beijing's steel production center. In 2010, the manufacturer relocated to Caofeidian, Hebei Province, citing environmental concerns. Since then, the 8.5-square-kilometer plant has become the latest industrial vestige in the capital to be transformed into a modern multipurpose space, with the 798 Art Zone being the most famous example.