Carey MacRury

Don DeMarco

Kerry Smith

- Aris Mining Corporation announced **positive prefeasibility study (PFS) results** for its **51%-owned Soto Norte Gold Project** in Colombia, confirming robust economics and industry-leading environmental and social design features.  **[1964504_0001279569-25-000940_ex991.htm:0]** 
- The PFS outlines an initial capital of **$625 million** and projects an after-tax NPV 5% of **$2.7 billion** with an IRR of **35.4%** at a base case gold price of **$2,600/oz**.  **[1964504_0001279569-25-000940_ex991.htm:0]** 
- The project is expected to have a **22-year initial mine life** with average annual gold production of **263 thousand ounces** from years 2 to 10, and low life-of-mine cash costs of **$345/oz Au** and all-in-sustaining costs (AISC) of **$534/oz Au**.  **[1964504_0001279569-25-000940_ex991.htm:0]** 
- The design includes a mill capacity of **3,500 tonnes per day (tpd)**, with **750 tpd dedicated to local community miners**, and the processing facility will **not use cyanide or mercury**.  **[1964504_0001279569-25-000940_ex991.htm:0]** **[1964504_0001279569-25-000940_ex991.htm:1]**

Aris Mining (ARMN)