This one is also nice as the Chinese are partnering with ESA, CNES (French National Center for Space Studies), CONAE (Argentine National Space Activities Commission) and FFG (Austrian Research Promotion Agency) on this mission in various aspects. ESA is providing telemetry and communications support, CNES helped build the laser-induced breakdown spectroscopy instrument on the rover, FFG similarly assisted with the orbiter's magnetometer, CONAE operates the deep space tracking station in Argentina for the mission. So both a competion and a collaboration.