The World Bank concluded that the lowest cost railway would be a railway from Tavan Tolgoi directly to Baoutou in the Chinese autonomous region of Inner Mongolia. Exporting coal via this route, the bank estimated, could -- at 2009 coal prices -- "result in $1,460 million of profit from sales of 20 million tonnes per year. In contrast, selling the same quantity of coal by way of a new railway to Russia might generate profit of around $246 million per year."<ref>World Bank, [http://web.worldbank.org/WBSITE/EXTERNAL/COUNTRIES/EASTASIAPACIFICEXT/MONGOLIAEXTN/0,,contentMDK:22484512~menuPK:327714~pagePK:2865066~piPK:2865079~theSitePK:327708,00.html "World Bank Ready to Help Develop Southern Mongolia’s Infrastructure"], Media Release, July 7, 2009.</ref>
It was reported in June 2012 that the Mongolia Mining Corp. was planning the construction of an $800 million railway that would double export capacity to China.<ref>[http://www.businessweek.com/news/2012-06-28/mongolian-mining-bets-china-will-double-coal-imports "Mongolia Mining Bets China Will Double Coal Imports"] Michelle Yun, Bloomberg News, June 29, 2012.</ref>
===Potential and planned coal mines===