Hard coal mines in eastern Czech Republic will close by 2022 and the government wants the hard coal industry to gradually wind down, led by cash-strapped miner New World Resources , Industry Minister Jan Mladek said on Tuesday. A sharp drop in global coal prices has hit coal producers, and NWR has said it may run out of cash later this year unless it secures new financing. It has already said it would have to close at least one but possibly more mines.