According to Ukraine's Ministry of Energy and Coal Industry, in the January-April period of the current year, Ukraine's coal mining output decreased by 4.3 percent year on year to 27.989 million mt.
Meanwhile, in April alone Ukraine's coal mining production amounted to 6.68 million mt, down 7.9 percent compared to the previous month.
Source:
http://www.steelorbis.com/steel-news/latest-news/ukraines-coal-mining-output-down-43-percent-in-jan_apr-761723.htm