It's a planned trajectory, China went hard on using fossil fuels to develop renewable power + 20% nuclear in order to replace their fossil fuel dependancy (which is coming).

Even their recent coal usage has been 'better' in the sense of closing down large numbers of smaller older inefficient and extremely dirty coal plants while building out a lesser number of larger, moder, more efficient, less dirty coal.

On the mining side they are partnered with suppliers like Fortescue Metals that has been making massive real investments in hydrogen, regenertive trains, water management, etc. at a scale of moving a billion tonnes of material per annum.