Why should we invest in a graphite mining company when Cambridge Nanosystems makes impurity graphene from waste. From ther web site: OUR PROCESS FOR IMPURITY-FREE GRAPHENE Our innovative production process involves cracking waste methane, carbon dioxide or a combination of the two in order to produce high-quality graphene on a scale that has not previously been possible. No metal catalyst, solvents and surfactants are required as the process relies solely on advanced plasma chemistry.
The unique process yields products with no metal or other impurities, making the material highly attractive for a broad range of applications. It is also far more cost-effective, as production no longer requires a lengthy purification stage.