A life cycle assessment of Blackstone Minerals' proposed upstream and downstream nickel business has confirmed its process of producing nickel-cobalt-manganese precursor products will be one of the greenest pathways to supply the growing lithium-ion battery industry. The study found Blackstone's flagship Ta Khoa project could produce 1kg of precursor cathode active material at a cost of 9.8kg of carbon dioxide equivalent, substantially lower than the industry average of 16.1kg.