Had a look at it and the coal mine in question is expected to export five sixths of its coal, and a couple of UK steel-makers have said they can't use that coal for coking (the sulfur content is too high). Plus the steel industry is at least starting to decarbonise.
We get these stories here too (Northern Territory in Australia) about onshore gas supposedly being vital for "local chemical manufacturing industries" that don't exist and probably aren't viable, which is why I checked.
One of the many quirks in the energy debate here has been coal projects that literally can't get finance from banks, or insurance, because they're so economically marginal and energy transition is actually happening—but which still have their barrows pushed by government. The argument's often been "we'll sell this coal to China," but China supplies 90% of its coal from domestic sources and is hell bent on reducing its coal dependency.
Government in Australia lags industry by a long mile on this stuff, including emissions targets.