Longshan stone was set up in 1988, with a registered capital of 10millon yuan. There are seven branch processing factories and three slate quarries within advanced mining equipment, modernized processing workshops and independent I/E right, to make Longshan become a modern corporation with mining, processing, selling and serving. The stone products from Longshan passed the third---party inspection (of HK ITS and) in 2000. has passed the ISO9001:2000 International quality system authentication firstly in the slate area.