Giyani Metals produces HPMSM from demo plant

Mr. Nigel Robinson reports GIYANI PRODUCES HIGH PURITY MANGANESE SULPHATE MONOHYDRATE FROM DEMO PLANT Giyani Metals Corp. successfully produced high-purity manganese sulphate monohydrate (HPMSM) from its demonstration plant in Johannesburg, South Africa, in September, 2025. Highlights: Successful production of HPMSM from the demo plant in Johannesburg, South Africa, marking a significant milestone for the company; HPMSM offtaker qualification trials will now commence; Following the successful production of high-purity manganese oxide (HPMO) in Q1 2025, Giyani has now proved its dual-product-offering capability, which positions the company to supply its products to a broad range of potential future battery technologies and keep pace with the rapidly evolving battery market; Giyani's demo plant has provided invaluable information and has derisked the final optimized process flow sheet, which will now be carried forward into the design and operation of the full-scale commercial plant in Botswana. Outlook The company's focus over the next six months will now be: To complete the definitive feasibility study (DFS) to National Instrument 43-101 standards; this remains on track for completion by end Q1 2026; Continuing qualification of Giyani's HPMSM and HPMO product. Nigel Robinson, interim executive chair of the company, commented: "Achieving first production of HPMSM in Q3 2025 represents a significant milestone for the company. The demo plant has been invaluable in informing the new optimized process flow sheet, developed by Giyani, over the past several months. We will now incorporate the learning points and process changes into the DFS, which remains on track for completion in Q1 2026. This significant milestone will also allow us to commence the offtaker testing phase for HPMSM, with HPMO qualification already well under way. "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. I would like to take this opportunity to thank all the team for their dedication and hard work in achieving this milestone. Production of HPMSM from demo plant The company has successfully produced HPMSM from its demo plant in South Africa. First product will now be shipped to potential offtakers for initial qualification. The demo plant has been an invaluable asset in developing Giyani's new innovative process flow sheet. The demo plant assisted in the risk identification and mitigation of process risks and has unquestionably enhanced the commercial viability of the K.Hill project. The demo plant has provided the company with significant information, which will be carried forward to the design and operation of the full-scale commercial plant in Botswana. Manganese market The demand for manganese is set to rise significantly, driven by advancements in battery technologies that increasingly favour higher manganese content owing to its stabilizing properties. From 2028 onward, new battery chemistries being developed will require greater quantities of battery-grade manganese as critical inputs. This shift in demand is largely attributed to the growing adoption of electric vehicles and energy storage solutions, both of which rely on next-generation batteries with enhanced performance and safety profiles. Giyani is uniquely positioned to capitalize on this market evolution. The company benefits from assets located in a supportive jurisdiction, enabling it to align its project timelines with the anticipated surge in demand for battery-grade manganese. About Giyani Metals Corp. Giyani is focused on becoming the preferred Western-world producer of sustainable, low-carbon, high-purity, battery-grade manganese for the EV (electric vehicle) and ESS (energy storage system) industry. The company has developed a bespoke hydrometallurgical process to produce battery-grade manganese products for cathode precursor materials, critical for EVs and ESS. Jeffrey Stevens, PrEng, MSAIMM, BSc (engineering (chemical)), who is registered with the Engineering Council of South Africa and is a qualified person as defined by NI 43-101, Standards of Disclosure for Mineral Projects, has reviewed and approved the scientific and technical information disclosed in this news release. He is considered independent under NI 43-101. We seek Safe Harbor.