As far as I know China plans to set up a little base in 2030. Not sure who will be the competitor, maybe NASA, Russian, others or some private industries. Edit: Alright, China "is likely planning" to set up a little base in 2030. And it may just be the springboard to Mars. Everything is not sure. And I forgot Europe,sorry. Edit: So... US has the same goal to Mars, does it? Interesting...