Russia is currently the fifth largest producer of coal, and has the second largest reserves, estimated at 175 billion. The majority of its coal is located behind the Ural Mountains in Siberia. By 1999 approximately a third of coal mining business was privatized. Since then, the industry has concentrated in hands of few companies - coking coal producers were integrated with steel makers, and two national leaders in steam coal emerged. Russian coal miners have recently campaigned for improvements in their working conditions, leading to some reform. Mechel controls the Southern Kuzbass Coal Company in Kuznetsk, the Elga Coal Field in the Sakha Republic with 2.2 billion metric tons of reserves of coal, and the Neryungrinsky coal mine at Neryungri in the Sakha Republic. Other coal producing regions include the Pechora basin of brown coal in northern European Russia, the Kansk-Achinsk basin with total reserves 600 billion tons of lignite centered on Kansk in southern Krasnoyarsk Krai, Tunguska coal basin in eastern Siberia located between the Khatanga River to the Trans-Siberian railway and between the Yenisei and Lena rivers, and the Lena coal basin which is mainly in the Sakha Republic with some in Krasnoyarsk Krai.