AFAIK.
There's a rule that any Chinese company should cooperate with their government in terms of data collection if they had to. If the government asks them to get data that they've gathered from the products that they've supplied all over the world, Huawei or any Chinese company just have to give it to them without any demands.
In short, most or let's say that all of the Chinese companies are cooperating with their government.
Just like the USA with their NSA gag orders. Any American company that gets this order has to do the same: share data or allow them to install tapping devices, and most importantly, keep absolutely quiet about it. But at least they can charge some fee for the service...
You can have all the social media and platforms you like in China, provided you obey their rules. This usually means all technological means to stop the spread of any anti gov messages of any kind, so if your app has filters and can quickly take action to suppress any inadequate sentiment against the gov, you can probably operate just fine. Now Americans get a bit outraged, assuming there is such thing as freedom everywhere, but there isn't, not even in their own country. Only difference is the amount of it.
Consider China like some monarchy, talking against the monarchy in a monarchic country is forbidden period. In fact China was exactly like that for thousands of years, in a way, they simply continue their ancestors traditions.
So once you get over the fact that, there is zero political freedoms in China and that you must do everything to keep it that way if you want to operate there, then sure enough you can. If you willingly offer them technological expertise and knowledge, even more.
If anything, China is more sincere about it. Americans think they are different but they are not, at least not regarding privacy. You think your laws protect you because the NSA isn't supposed to collect data on Americans, but they have to for the surveillance to work. There is no way around it, you record it all, and then IF there is a legal issue, filter it later. Tho they are very likely excepted under national security rules.
Of course it doesn't end there, many countries spy each other and their own citizens and anybody else they can. Why would Huawei defy their gov? You think Google can actually reject the NSA? They can't either. One of the reasons data mining is profitable to some US companies, is that they also get tax paid money from it, and its not like they can refuse it either.
Anything you use, unless fully open sourced, you can assume is spying on you. Maybe you can choose the country at best, but that won't save you when third parties exploit those backdoors, even if you trust country a, doesn't mean country b won't benefit (or criminal organization c).
Many people here don't even bother with using open source software, imagine trying to convince them to use open source hardware... Use both if you truly care.