The Technical Report, titled "NI 43-101 Technical Report and Preliminary Economic Assessment for the La Mina Gold-Copper Mineral Deposit, Antioquia, Republic of Colombia" and with an effective date of April 22, 2026, is available under the Company's respective profiles at www.sedarplus.ca and www.sec.gov. All currency amounts herein are in US dollars unless otherwise indicated.

2026 PEA Highlights1

  • Strong Base Case Economics: After-tax NPV5% of $1.0 billion and an after-tax internal rate of return ("IRR") of 32.2% and initial payback of approximately 2.7 years.
  • Leverage to Spot Prices: At current spot prices (approximately, $4,775/oz Au, $5.75/lb Cu, and $77/oz Ag), the after-tax NPV5% increases to approximately $1.8 billion with an IRR of 49.1% and initial payback of 1.9 years. Spot prices were selected on April 20th, 2026 as 30-day averages.
  • High Capital Efficiency: Initial capital expenditures are estimated at $523 million, representing an attractive 1.9x base case NPV5% to initial capital ratio that highlights the Project's potential for a compelling return on investment.
  • Strong Production Profile: Average annual production of 152.4 koz Au equivalent1 ("AuEq") over the first five years of operation, and total life of mine ("LOM") production of 1.5 Moz AuEq (comprising 1.2 Moz Au, 2.6 Moz Ag, and 195 Mlbs Cu) over an 11.2 year projected mine life.
  • Resilient Cost Profile: Estimated total cash cost of $872/oz Au and All-In Sustaining Cost ("AISC") of $1,045/oz Au (calculated on a by-product basis).
  • Conventional Operation: The PEA contemplates a conventional open pit, truck and shovel operation to support a processing rate of 15,000 tonnes per day ("tpd"). A proven processing flowsheet utilizing standard froth flotation and leach circuits will achieve metallurgical recoveries of 91% Au, 80% Cu, and 64% Ag.