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Calstar Brick Formula Mining Ores Exploration

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Calstar Brick Formula Mining Ores Exploration

Apr 03 2016 Ore Reserves of black coal have increased by 14 since 2002 but production has increased 63 from 348 Mt to 566 Mt over the same time period. As a ratio production has increased from 2 of the Ore Reserve in 2002 to 3 in 2016 but it