KIEV, March 12 - KrasnodonVuhillia, one of the biggest producers of coking coal in Ukraine, plans to invest 470 million hryvnias ($93 million) by the end of the year to boost its output by 12%, the company announced Monday.

KrasnodonVuhillia, which incorporates seven coal mines and other assets, plans to boost coking coal output to 6.4 million metric tons in 2007, up from 5.7 million tons in 2006, the company said.