No it isn't.
Both of the two Chinese registries are open, pretty much anyone can register ships there. It's a bit like the .tv domain — if you see something.tv you can't assume that it's a company in the country Tuvalu.
Look at the nationality of the captain and the beneficial owner instead.
And as a result .tv domains are not exactly trusted and can't be used for all the things reputable domains can be used for.