A press conference was recently held in Beijing where the EmDrive technology was discussed. This press conference was held by China Academy of Space Technology (CAST), which is a subsidiary of the Chinese Aerospace Science and Technology Corporation (CASC) and the manufacturer of the Dong Fang Hong satellites.
NASA, EmDrive

This image explains how the space propulsion technology EmDrive carries out its function.NASA
..."China claims that it has been conducting researches on EmDrive for the past five years, but no proof or paperwork is there to aid their claim of carrying out a successful mission using the technology, Science Alert reported. 
The hypothetical EmDrive technology operates by emitting microwaves in a cone-shaped engine. 
It makes the engine move forward and enact like a propulsion system. 
What makes EmDrive more outstanding is its rare propulsion which terminates any rocket fuel requirement..."