Sovereign Metals Ltd (ASX:SVM, OTC:SVMLF, AIM:SVML) has announced “highly successful” results from recent test work at its Kasiya Rutile-Graphite Project in Malawi — just as global graphite market disruption highlights the company’s potential to become the world’s largest and lowest-cost graphite producer outside China.
The latest optimisation of Kasiya’s spherical purified graphite (SPG) into coated spherical purified graphite (CSPG) demonstrated exceptional performance, including high discharge capacity and cycle efficiency, Sovereign said, further enhancing the project's appeal to battery manufacturers.
This comes as shifting market dynamics and heightened US tariffs on Chinese graphite imports create a pressing need for secure, cost-effective alternatives. Sovereign’s Kasiya Project, with an industry-leading incremental cost of production of US$241 per tonne, offers a critical alternative to the dominant Chinese supply chain, as the company looks to meet the surging demand for reliable, high-quality battery-grade materials.
Natural Flake Graphite Industry Cost Curve For Projects at Prefeasibility Stage or Later.
US tariffs boost Kasiya’s potential as a key supplier
The US Department of Commerce’s July 17 announcement of a 93.5% anti-dumping duty on Chinese graphite imports, combined with existing tariffs, has created an effective 160% tariff barrier on Chinese graphite. This new environment marks a strategic opportunity for Sovereign’s Kasiya Project, as battery manufacturers scramble to secure alternatives to Chinese graphite.
China controls roughly 75% of global graphite production and dominates 97% of anode material processing, creating vulnerabilities in the supply chain that major battery manufacturers are now working to address, Sovereign noted. Companies like Tesla and Panasonic have voiced concerns over the tariffs, citing the lack of technical capacity in US graphite producers to meet the required quality standards for battery applications.
“Kasiya remains a primary rutile project, but our ability to also produce exceptional CSPG with world-class performance characteristics from our natural graphite concentrate is a further demonstration of the geopolitically strategic nature of Kasiya,” Sovereign managing director and CEO Frank Eagar said. “These new US tariffs on Chinese graphite highlight the urgent need for reliable, high-quality alternatives. Kasiya's resource scale, long life, potentially lowest-cost non-Chinese producer, combined with our demonstrated technical excellence, positions us perfectly to serve battery manufacturers seeking secure supply chain diversification.”
Test work reinforces Kasiya’s global significance
Sovereign’s recent graphite coating optimisation test work further strengthens Kasiya’s position in the battery materials market. Conducted by Prographite GmbH, the test work focused on enhancing the coating process for converting Kasiya-derived SPG into CSPG.
The electrochemical tests showed that the optimised CSPG produced from Kasiya graphite exceeded key specifications, including a discharge capacity of more than 360 milliampere-hours per gram (mAh/g) and first cycle efficiency of more than 94%.
These performance results are critical for battery manufacturers and position Kasiya graphite as a high-quality source for CSPG, a key material in the growing electric vehicle (EV) market.
Key achievements from the optimisation test work include:
- Process efficiency: Optimised coating process while maintaining superior CSPG characteristics;
- Premium performance: All target specifications met for discharge capacity (>360mAh/g) and first cycle efficiency (>94%); and
- Physical properties: Achieved target specific surface area (<4m²/g) and tap density (1.0 g/cm³).
The results support Kasiya's potential as an alternative to Chinese graphite, with the added benefit of being cost-competitive in the current market.
Customer engagement and future offtake opportunities
Sovereign has already begun engaging with leading natural graphite anode producers and anode project developers. Initial samples of Kasiya fine flake graphite concentrate have been distributed, marking the first step towards securing offtake agreements.
The company is also advancing additional pilot-scale processing to meet growing demand and support expanded customer qualification programs.
Sovereign’s ability to meet the growing demand for high-quality graphite, coupled with the shifting market dynamics, strengthens Kasiya’s role in the global battery-grade materials supply chain. As the electric vehicle sector accelerates and the need for alternative graphite sources intensifies, Kasiya offers a strategic solution for battery manufacturers seeking to diversify from China.