Graphite One Advances Ohio Battery Materials Facility with Production Line Integration Contract

Vancouver, British Columbia – June 18, 2026 – Graphite One Inc. (TSXV: GPH) (OTCQX: GPHOF) (“Graphite One”, “G1” or the “Company”) is pleased to announce that it has engaged a leading global engineering and production line integration provider to support the design and integration of the manufacturing equipment being procured for the Company’s planned Ohio advanced graphite materials facility, which remains subject to project financing.