Mr. Liu has over 20 years of working experiences in aviation industry, especially in line maintenance, engineering management, aircraft delivery and disposal area. He joined Hainan Airlines in 1994, and held several positions including Maintenance Engineer, Engineering Manager, Manager of Component Maintenance, as well as Technical Services Manager in M&E department of China Xinhua Airlines. Since 2004, Mr. Liu has been working in Suparna Airlines(Former Yangtze River Express Airlines) as GM of M&E Dept, Chief Engineer, Vice President of Maintenance etc.