Giyani Produces High Purity Manganese Sulphate Monohydrate from Demo Plant

Executive Summary

• Giyani Metals successfully produced high‑purity manganese sulphate monohydrate (HPMSM) at its Johannesburg demonstration plant in September 2025, marking the first commercial‑scale output of this battery‑grade product.
• The achievement validates the company’s dual‑product capability (HPMSM and high‑purity manganese oxide, HPMO) and de‑risks the process flowsheet for the upcoming full‑scale K.Hill plant in Botswana.
• Off‑taker qualification testing for HPMSM will commence immediately, while the definitive feasibility study (DFS) remains on track for completion by Q1 2026.

Key Details

• Production Milestone: First batch of HPMSM produced at Demo Plant; product ready for shipment to potential off‑takers for qualification trials.
• Dual‑Product Validation: Follows Q1 2025 production of high‑purity manganese oxide (HPMO), confirming Giyani’s ability to supply two battery‑grade manganese products.
• Process Advancement: Demo Plant data used to finalize and optimize the commercial process flowsheet for the K.Hill project in Botswana.
• Future Outlook:
• Complete DFS to NI 43‑101 standards by end of Q1 2026.
• Ongoing qualification of HPMSM and HPMO with prospective customers.
• Market Context: Anticipated surge in demand for battery‑grade manganese from EVs and energy storage systems, especially as new chemistries post‑2028 require higher manganese content.

Notable Quotes

“Achieving first production of HPMSM in Q3 2025 represents a significant milestone for the Company… With the successful production of both HPMSM and HPMO, we have demonstrated our dual product offering capability, placing us in a strong position to supply the dynamic and evolving chemical requirements of the battery and energy storage market.” – Nigel Robinson, Interim Executive Chair, Giyani Metals Corp.