UK Coal PLC Formerly known as RJB Mining PLC. The Group's principal activities are surface and underground coal mining and property leasing. The Group also manufactures smokeless fuels for domestic and industrial consumption, produces coals for markets ranging from power stations to hospitals, and the Lionheart range of house coal for domestic users. Coal sales - Deep mines accounted for 75% of 2002 revenues; Coal sales - Surface mines, 16%; Coal sales - Australia, 5%; Manufactured fuel, 3% and Others, 1%.