NEWS: Tesla said in a letter to Trump administration officials in February that it had already agreed to buy graphite from U.S. suppliers, but “they have not yet shown the technical ability to produce commercial quantities” of battery-grade graphite “at the quality and purity required by Tesla and other battery cell manufacturers.” Yesterday. The US Commerce Department imposed preliminary anti-dumping duties of 93.5% on Chinese imports of graphite, after concluding the materials had been unfairly subsidized. "Graphite accounts for less than 8% of the cost of a battery, according to Panasonic. But batteries are the most expensive components in an electric car. Doubling the cost of graphite could easily add $1,000 or more to the price of a battery." - NYT

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