G6 Materials Corp. (GPHBF)

[rusty_nail]

There are not too many graphene players or at least serious ones. Only a handful of publically traded companies on second-tier stock exchanges. No graphene companies are listed on the major stock exchanges, like NASDAQ, to the best of my knowledge.Only a few companies have any revenue (Graphene 3D is one of them). But there are a lot of wannabe companies that have neither revenue no big developments.

Graphene market is just forming $0.5B is not a huge number. The rate of growth is fast, though.