GlobalData recently released its global coal cost curves. These cost curves are generated by estimating the operating costs of each individual coal mine; the height of each bar represents the cost per tonne of production, while the width represents the total yearly production of coal at that mine.
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"The power of cost curves"
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Read the article online at: https://www.worldcoal.com/special-reports/14112016/the-power-of-cost-curves/