Are they responsible for the conditions there?

Of course all of the other "China is imperialist" claims are bullshit but it seems like this is true and could potentially lead to valid accusations of imperialism or at least bad regulations.

What's the reason for what's going on in the Congo, I guess? What is happening on a detailed level? I can't find many resources outside of blatantly western shit.

I know what's going on and like the bad things but I'm asking why basically. Is it China?