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The supply of flake graphite is concentrated primarily in China and Mozambique, with Brazil, NorthKorea, Canada and India accounting for nearly all of the remainder of production. Compared to most graphite mining, the Black Crystal graphite quarry operation has a light environmental footprint.
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In subsequent decades, the company was accused of stealing Western intellectual property , supplying sensitive telecoms equipment to NorthKorea and Iran , and expanding its global market share by undercutting Western telecom equipment prices by as much as a third.
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