National Graphite Corporation (NGC) entered into an agreement with American Graphene to jointly explore graphene business opportunities. NGC will supply high grade graphite samples from its Chedic Graphite mine in Nevada to American Graphene (based in Phoenix Arizona).

American Graphene converted the graphite to graphene using a sonication process. We don't have more details, but sonication means applying sound (usually ultrasound) to agitate particles - which perhaps can be used to reduce graphite to graphene.

NGC says that current graphene prices range from $100 to $1000 per gram, but they aim to produce it with a target cost of around $10 per gram.

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