From 1970 to 1979 Zvyahilsky worked at the Kuibyshev Mine Corporation of the Industrial Union " Donetskugol " ( Donetsk Coal ) . In 1975 he was appointed a director of the company . From 1979 through 1992 Zvyahilsky was a director of Zasyadko coal mine of the Industrial Union " Donetskugol " . The mine , which is known for its chronic accidents , became particularly famous in 2007 for the most deadly disaster in the mining history of Ukraine
disaster
2007 Zasyadko mine disaster
Yukhym Zvyahilsky