Pioneering in design, research and implementation of integrated supervision and control for urban rail transit, HollySys develops supervisory control and data acquisition (SCADA), integrated traffic automation system and signal system with a full cover of SIL 4 certification from European Authorities.(SIL4 for control systems and SIL2 for monitoring systems). HollySys business presence spreads over dozens of urban rail transit lines in over ten cities, regions and areas around the globe including Beijing, Shenzhen, Guangzhou, Hong Kong and Singapore. In urban rail transit signal integration, HollySys has successfully implemented Beijing Changping Metro Line Signal System Project and has achieved a remarkable and unprecedented breakthrough of Chinese SCADA export in the implementation of Thomson-East Coast Line for Singapore MRT.