Melnichenko led SUEK to become Russia's largest coal producer with operations in seven Russian regions, as well as the world's third largest coal exporter by reserves and sales with distribution in 38 countries worldwide, including the Asia Pacific where coal plays a key role in energy access. SUEK assets produce more than 100 million tons of coal annually, with assured coal reserves of 5.4 billion tons. SUEK is Russia's largest coal producer and a global leader in exporting higher-quality thermal coal. As reported in Financial Times in 2017, according to the International Energy Agency's Clean Coal Centre, "SUEK, Russia's main exporter of higher-quality thermal coal, has invested in modern high-capacity washing plants and has ash control technologies at all its coal ports". According to Bloomberg, SUEK is Russia's largest producer of higher quality thermal coal which, according to Melnichenko, focusses on "high-quality and less-emitting coal".