BRL Chart, page-392

Both thermal and coking coal prices have basically risen the the last couple of years on stronger demand.
China also helped kicked things off initially by introducing policies to keep coal prices within a certain range to help it's rationalization of it's steel and coal industries.

Won't North Korea be needing a fair wack of it's thermal coal for power generation in modernising it's infrastructure etc and building up it's economy, bringing people out of poverty etc.

And there will be a big demand also for steel so good for coking coal. Chinese steel mills prob looking opimistically at coming demand from Nth Korea.

Obviously Nth Korea will be looking forward to again exporting their thermal coal but i'm not sure they'll be potentially flooding the market. And if they did, and prices went down because of that, i'm not sure that coking coal prices would in turn, follow suit, because of the healthy demand outlook for coking coal.

I also think Nth Korea would be aware of the demand/supply dynamics and wouldn't want to flood the market, even if they could, and pressure thermal coal prices too low. Would be shooting themselves in the foot.

In my opinion