While they haven't booted a company (that I recall), they are notorious for stealing intellectual property (IP).
I have a family friend, very old, who worked at the VP-level for decades in the textile industry, at one of the major players. He has discussed on several occasions how at trade shows his company would observe the Chinese companies going around taking photographs and detailed notes about the products on display from US and EU-based companies. By the time the next trade show rolled around (quarterly or every 6 months), the Chinese competitors would have on display identical products. This was brought to the attention of the WTO, with strong evidence (the Chinese even copied intentionally-placed "defects" that his company had placed into the patterns of the fabric as a test to see if the Chinese were blatantly copying - and the defects were perfectly copied over), and the WTO slow-rolled the complaints that by the time they were addressed, the US-based textile industries had already been decimated.
So, there is precedent to not trust the Chinese, when it comes to being willing to compete on a fair and even playing field. They have shown clearly that "win at all costs" is what they consider within the rules.
Right now, the Chinese have a lot to gain by learning from Tesla and how they build cars. They aren't going to spoil that golden goose, not for a while. But that doesn't mean they are completely trustworthy either.