Zasyadko Mine ( , ) is a coal mining company in Ukraine 's eastern city of Donetsk . Following the start of the War in Donbass in 2014 the mine became situated in rebel controlled territory . The manager and alleged owner of the company is Yukhym Zvyahilsky , influential businessman and politician within the Party of Regions . Along with its economic , technological and political importance , the company , namely its coal mine , is infamous for being the site of repeated mining accidents with numerous fatalities . The deadliest disaster , the worst in Ukraine ’s history , happened on November 18 , 2007 , killing 101 miners
deadliest disaster
2007 Zasyadko mine disaster
Zasyadko coal mine