- NexMetals Mining Corp. announced significant assay results from two holes of its 2025 metallurgical drilling program at the Selkirk Mine in Botswana on **September 18, 2025**.  **[795800_0001493152-25-013967_ex99-1.htm:0]** **[795800_0001493152-25-013967_form8-k.htm:1]** 
- Key findings include drill hole SMET-25-003 intersecting **201.30 metres of 0.91% CuEq**, including **158.75 metres of 1.00% CuEq**, and SMET-25-002 showing **85.00 metres of 0.98% CuEq**.  **[795800_0001493152-25-013967_ex99-1.htm:0]** **[795800_0001493152-25-013967_ex99-1.htm:1]** 
- These results demonstrate **consistent mineralization** and **expansion potential** near the surface, with mineralization identified outside the current Mineral Resource Estimate but within the conceptual pit shell, supporting **open-pit development potential**.  **[795800_0001493152-25-013967_ex99-1.htm:0]**

NexMetals Mining Corp. reports significant drill results from Selkirk Mine

- NexMetals Mining Corp. (NEXM) announced a **metallurgical breakthrough** at its Selebi Mines in Botswana, enabling the production of separate **high-grade saleable copper and nickel-cobalt concentrates**.  **[795800_0001641172-25-026329_ex99-1.htm:0]** 
- This development potentially **eliminates the need for an on-site smelter or hydrometallurgical facility**, which significantly **de-risks capital requirements** and operational complexity for future production.  **[795800_0001641172-25-026329_ex99-1.htm:0]** **[795800_0001641172-25-026329_ex99-1.htm:1]** 
- Initial metallurgical testing achieved **87.0% Cu recovery** for copper concentrate and **55.9% Ni recovery** and **64.7% Co recovery** for nickel concentrate.  **[795800_0001641172-25-026329_ex99-1.htm:0]** 
- The company anticipates this breakthrough will lead to a **faster and more efficient restart** of the Selebi Mines with **significantly lower capital costs**.  **[795800_0001641172-25-026329_ex99-1.htm:0]** **[795800_0001641172-25-026329_ex99-1.htm:1]**

NexMetals Announces Metallurgical Breakthrough at Selebi Mines

- NexMetals Mining Corp. announced initial re-assay results from **6 drill holes** at its Selkirk Mine in Botswana on **August 28, 2025**, as part of an ongoing **34-hole resampling program**.  **[795800_0001641172-25-025758_ex99-1.htm:0]** **[795800_0001641172-25-025758_form8-k.htm:1]** 
- Key results include **107.0 metres of 0.94% CuEq** (including **91.00 metres of 0.99% CuEq**) from hole DSLK129 within the current Mineral Resource Estimate (MRE).  **[795800_0001641172-25-025758_ex99-1.htm:0]** 
- Hole DSLK130, located outside the MRE but within the conceptualized pit shell, returned **123.1 metres of 0.47% CuEq**, demonstrating **potential for expansion** of the deposit.  **[795800_0001641172-25-025758_ex99-1.htm:0]** 
- The re-assay program, which now includes Platinum Group Elements (PGEs), highlights the **potential to expand the MRE** as PGEs were incompletely tested in the past.  **[795800_0001641172-25-025758_ex99-1.htm:0]**

NexMetals Mining (NEXM)