Group 1 - The Ministry of Transport has appointed Cen Yanqing as the Chief Engineer [1] - Cen Yanqing, born in January 1971, holds a doctoral degree in engineering and is a member of the Communist Party [2] - He has a long tenure at the Ministry of Transport, having served in various leadership roles including Deputy Director and Director of the Science and Technology Department [2] Group 2 - Cen Yanqing is recognized as a leading academic figure in the fields of transportation information technology and transport economics and policy [2] - His research achievements include one National Science and Technology Progress Award (second class) and multiple awards at the ministry level [2] - He has authored and edited nearly ten academic works, including titles such as "China's Transportation Revolution: Path to Leapfrog Development" [2]