Graphite One secures Ohio EPA air permit, advancing US graphite supply chain

The Ohio Environmental Protection Agency has accepted Graphite One's air permit application for its proposed active anode materials (AAM) plant in Conneaut, Ohio, moving the project into technical review. The facility is planned to produce about 10,000 tonnes of synthetic anode material per year initially, with capacity to expand to 25,000 tonnes, supplying lithium‑ion batteries for electric vehicles and grid‑scale storage. Subject to permitting, regulatory approvals and financing, the company targets commercial start‑up in the fourth quarter of 2027.

The Ohio plant is a core element of Graphite One's strategy to build the first fully integrated domestic U.S. graphite supply chain, linked to its Graphite Creek project in Alaska, which holds the largest known graphite resource in the United States. While the Ohio milestone generated a roughly 7% rise in the company's shares after a period of steep decline, the Alaska project is encountering a stricter environmental review that could delay its schedule.

Overall, the permitting progress marks a significant step toward domestic production of high‑grade anode materials, reducing reliance on imported natural graphite and supporting the growing electric‑vehicle market.