Global reserves of coal totaled 891.5 billion tones at the end of 2014, according to BP Statistical Review of World Energy. Of these, around 45.2% are bituminous grade and coking type, with sub-bituminous and lignite-graded coal accounting for the rest. Browse Full Report With TOC @ http://www.researchmoz.us/global-coal-mining-to-2020-report.html
http://www.researchmoz.us/global-coal-mining-to-2020-report.html
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