Short term bubble. B2Y need to make the most of it in 2018. Production slippage into later years implies significantly less revenue for the deferred tonnes than planned.
https://www.statista.com/statistics/779868/forecasted-price-of-coking-coal-by-type/
https://home.kpmg.com/content/dam/k...rice-fx-consensus-forecast-june-july-2018.pdf