This is quite possibly part of the CIA work to undermine China's exports to the US.
There has been quite a lot of attacks on China regarding its goods imported tyo the US, and most of it is either the media simply bashing them - or
faked scandals - like the lead in the paint thing.
If the media jump on this and want to run a story on it, then I would say you likely just got a nice propaganda piece planted by the CIA.
They have a heap of dirty tricks - and this sounds very suspicious to me.
There are children workers in China for sure - but it seems pretty suspicious to me.
People thinking of horrible conditions and slave masters are fairly well off beam - that is more a propaganda story than anything.
It is worth checking up on though - but I would keep in mind that TPTB don't like China and would love to undermine their export capacity - this kind
of a story is gold for them .. so strikes me as very sus.

