Giyani Metals HPMO Passes Key Battery Tests as C4V Confirms Strong Performance in Phase 2 Trials
TSX-V-listed Giyani Metals has announced positive interim results for its high-purity manganese oxide (HPMO) produced at its demonstration plant in Johannesburg, South Africa.
The results were provided by US-based battery technology company Charge CCCV (C4V) as part of Phase 2 of its Digital DNA Supply Chain Qualification Program.
Using HPMO supplied by Giyani’s demonstration plant, C4V is conducting ongoing long-cycle testing on single-layer pouch cells.
The interim findings indicate that the material meets C4V’s quality assurance standards for battery applications.
Giyani reported that electrode density is comparable to baseline materials, while rate testing demonstrates stable performance across multiple charge and discharge rates.
Cells incorporating Giyani’s HPMO also show capacity retention comparable to baseline cells during extended cycling, with overall stability described as encouraging.
Phase 2 testing is still underway and will continue until the cells reach 80% capacity retention, which is expected within the next 60 days.
Following this, Phase 3 will involve multi-layer pouch cell testing under similar conditions and is expected to take approximately six months.
In parallel, Giyani confirmed that the definitive feasibility study (DFS) for its K.Hill battery-grade manganese project in Botswana remains on track for release this quarter. The company is also in ongoing discussions with several potential strategic partners to support its long-term development strategy.
Through its demonstration plant, Giyani has developed a process flowsheet capable of producing two key battery-grade manganese products at scale: HPMO and high-purity manganese sulphate monohydrate (HPMSM). These materials are intended to support a range of emerging battery chemistries.
The company has already shipped both HPMO and HPMSM samples to multiple potential partners as part of ongoing offtake qualification and testing programs.
In June 2025, Giyani received a letter of intent from the Export-Import Bank of the United States for up to $225 million in potential financing to support construction of the K.Hill project.
Interim Executive Chairperson Nigel Robinson said the Phase 2 results mark further validation of the company’s product quality.
He added that successful testing strengthens confidence in Giyani’s manganese materials as it progresses toward third-party certification.
“We are encouraged by the interim results from Phase 2 of C4V’s qualification program. Our HPMO has met key quality requirements, and we look forward to completing Phase 2 and advancing to Phase 3,” Robinson said. He also confirmed that the DFS remains on schedule for completion this quarter.
C4V Vice President of Supply Chain Baasit Ali noted that Giyani’s HPMO has shown promising electrochemical performance during internal testing and aligns with required material standards.
He added that C4V looks forward to completing the qualification process and strengthening collaboration with Giyani.
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