No minors or child labour appear in this video.
What we see here are the stone pickers. An extremely dangerous job near fast moving conveyors carrying tens of thousands of coal per day. The precise keen eyed workers pick up the stones coming through the conveyor and make sure the coal goes into further process lines pure.
![](https://i.ytimg.com/vi/fwbeIEgHbRc/maxresdefault.jpg)