GraphenTech is based in Rotterdam in the Netherlands and founded by an HP experienced engineer. The team that joins him is composed of about thirty professionals expert in innovation, blockchain and graphene. The 77G token is a security token to participate, support and benefit from the upcoming revolution of graphene. GraphenTech, 77G’ producer, is an industrial company that aims to become a worldwide graphene producer. More than being just a graphene provider, GraphenTech will revolutionize the graphene market by introducing his own graphene-based crypto currency., 77G.