The company they are referring to is Graphene Manufacturing Group listed on the ASX and TSX-V. GMG is still at the lab stage experimenting with their graphene - aluminum battery, and at least 2-3 years from having a product that could be commercially tested. Rio's $6 million investment is, for them, pocket change.
GMG is a bit closer to commercializing their graphene and hydrogen from natural gas production system but still have a long way to go.
Meanwhile the competition including Nanoxplore, which I follow and have been in and out of, is producing graphene at scale (4000 tpy) and have their own suite of graphene in battery applications though none on the breakthrough scale that MG is chasing.
