Treatment of materials, namely, gas and chemicals, rubbers, plastics, metals, reinforcing agents, gutta-percha, gum, mica and substitutes for all these materials; processing and treatment of carbon and hydrogen; processing and treatment of graphene, graphite, graphene nanotubes, carbon nanotubes, carbonates, graphite powder, graphene powder, carbon black, pelletised carbon black; refining services; gas processing and production services; processing of natural gas; treatment of natural gas; re...