i must disagree with you, chery got really strong sales and after market support in argentina, you can check it here, i think during car show in china i meet some people from argentina:Chinese auto manufacturers need to learn from well known colleagues how to establish aftersales support and marketing on external markets.
They are trying, but do not want to make investments to this sphere. And it's a BIG mistake.
But for most of them it's not important issue because of satisfactional internal (Mainland) sales volumes.
That's the reason of poor support.