Coating already used to improve AC efficiency ... THERMAL-XR is a coating system that was developed using GMG graphene and OzKem's base HVAC coating.
With the acquisition, GMG will buy OzKem's base HVAC coating and manufacture the THERMAL-XR products which contain GMG graphene.
More info here → https://graphenemg.com/gmg-aquire-thermalxr-product-brand-rights/