Ontario-Made Graphite Breakthrough Could End North America's Dependence on Chinese Battery Materials

A major milestone in North American battery supply chain independence has just been reached, and it happened right in Ontario. Green Graphite Technologies Inc. (GGT) and Rain Carbon Canada Ltd. (RAIN) have successfully completed a collaborative project to produce high-purity coated spherical purified graphite, widely known as CSPG, one of the most critical materials required for lithium-ion batteries powering electric vehicles, micromobility devices, and energy storage systems.

The project, supported by the Government of Ontario through the Ontario Vehicle Innovation Network (OVIN), received CA$682,000 of the total CA$2.05 million project budget. While the funding represents only a portion of the overall investment, its strategic importance is enormous. More than 90 percent of battery-grade graphite currently consumed in North America is imported from China, a dependency that creates significant vulnerabilities in the supply chain and raises serious environmental concerns for automakers and battery manufacturers operating on this continent.

This project directly targets that critical gap. At its core, the collaboration combined GGT's patented, cost-competitive, and environmentally sustainable graphite purification technology with Rain Carbon's deep expertise in carbon processing and advanced coating techniques. Together, the two companies successfully transformed three distinct input materials, namely natural flake graphite, recycled battery graphite, and gigafactory scrap, into battery-ready CSPG that met rigorous industry-standard performance benchmarks.

The testing phase was not a formality. Each batch of produced CSPG underwent comprehensive evaluation against established performance and suitability standards for use in EV batteries. Alongside the technical testing, a detailed technoeconomic analysis was conducted to validate the commercial viability of the entire production process, confirming that the approach is not only technically sound but also economically competitive at scale.

The results have already triggered real-world action. The success of this project has accelerated construction of GGT's first demonstration plant, located in Mississauga, Ontario.

The facility is expected to become operational next month and will be dedicated to producing CSPG and other high-purity graphite products specifically designed for battery manufacturers. This demonstration plant represents a critical bridge between research success and full commercial production, with GGT targeting a commercial-scale CSPG plant by 2029.

Raed Kadri, Head of OVIN, emphasized the broader strategic intent behind the investment. He noted that this funding reflects Ontario's strong commitment to accelerating the growth of homegrown companies that can power the global supply chain with Ontario-made technologies. By addressing gaps in the domestic supply chain directly, companies like Green Graphite Technologies are helping build the foundation of Ontario's electric future.

Claudia Krywiak, President and CEO of the Ontario Centre of Innovation, highlighted how this project fits into Ontario's larger ambition to become a global leader in electric vehicle and battery supply chain development. She pointed out that supporting companies through initiatives like OVIN is helping to develop the critical materials and technologies needed to reduce reliance on global imports and accelerate the production of made-in-Ontario solutions that will power the next generation of electric mobility.

Gillian Holcroft, Co-founder and CEO of GGT, captured the significance of the moment with clarity. She explained that the success of this collaboration with Rain Carbon demonstrates what becomes possible when home-grown innovation meets strong partnerships, and that the results have put GGT on a clear and credible path toward a commercial CSPG plant in 2029. She also expressed deep gratitude to OVIN and the broader network of stakeholder partners who helped make this milestone a reality.

The implications extend well beyond Ontario's borders. As global demand for lithium-ion batteries continues to accelerate driven by EV adoption targets, grid-scale energy storage deployment, and the broader electrification of transportation, securing reliable, domestic sources of battery-grade graphite has become a geopolitical and industrial priority for Canada, the United States, and other allied nations. Projects like this one represent exactly the kind of investment and innovation needed to build a resilient, sustainable, and competitive North American battery materials ecosystem.