POSCO, a steel-making company, completed the acquisition of a minority stake in Prologium, an energy innovation company, for $50m. “POSCO Group is the ideal partner as its business comprises not only of cathode and anode materials but also raw materials for secondary battery materials as lithium, nickel and graphite.” “I believe the partnership will speed up the production of all-solid-state batteries and contribute to the stable supply of core materials,” Vincent Yang, Prologium CEO.