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Worldwide natural graphite supply has been dominated by China for the past 30 years, and there has not been any U.S. flake production for 40 years
Worldwide Natural Graphite Production - 2017
per USGS Mineral Commodity Summary
Total in 2017 = 1.2 million tonnes (Mt)
China product reported by Northern Graphite to be 70% amorphous or fine graphite and only 30% flake.
India production overstated by double or more due to it being reported as run-of-mine, not as product.
Distribution of Worldwide Natural Graphite Production
between Flake and Amorphous - 2016
per Roskill Consulting Group Ltd.
Total in 2016 = 0.85 Mt
Roskill reported that the split was more 50%-50% in 2015 and increasing. In opposition to Roskill, some companies report 60% to 70% amorphous and 30% to 40% flake and vein production.
Worldwide Flake and Vein Graphite Production - 2016
per Roskill Consulting Group Ltd.
Total in 2016 = 0.53 Mt
Canadian graphite production is overstated perhaps by a factor of 10. It is reported that the principal Canadian operation at Lac-des-lies, Québec is near the end of reserves and has suspended operations.