SKOURIES (GREECE)

On February 5, 2025, the Company announced an update to the project schedule and project capital cost estimate, primarily as a result of continued labour market tightness in Greece. The project capital cost incorporates an increase of approximately $143 million, to total $1.06 billion. In addition, the Company expects to complete additional pre-commercial production mining and has accelerated the purchase of higher capacity mobile mining equipment (originally expected to be purchased post commercial production as part of the contract mining fleet), resulting in $154 million of accelerated operational capital prior to commercial production. The project remains fully funded. 

First production of the copper-gold concentrate is expected in Q1 2026 and commercial production expected in mid-2026, with 2026 gold production projected to be between 135,000 and 155,000 ounces and copper production projected to be between 45 and 60 million pounds. 

Project capital totalled $117.0 million in Q2 2025 and $200.9 million during the six months ended June 30, 2025. Accelerated operational capital was $27.1 million in Q2 2025 and $33.5 million during the six months ended June 30, 2025. At June 30, 2025, cumulative project capital invested towards Phase 2 of construction totalled $705.7 million  and the cumulative accelerated operational capital totalled $40.5 million. 

In 2025, the project capital spend is expected to be between $400 and $450 million. In addition, the accelerated operational capital is expected to be between $80 and $100 million. 

As at June 30, 2025 overall project progress was 70% complete for Phase 2 of construction.

Filtered Tailings Plant

Work continues to progress on the filtered tailings building, which remains on the critical path. Structural steel installation was 51% complete at the end of the quarter and approximately 75% complete at the end of July. Mechanical work progressed with the installation of the six feeder conveyors and the collector conveyor completed in June. Assembly of the first filter press has commenced. The compressor building foundations are complete and steel structure assembly and mechanical installations are in progress. 

The filter plant tank farm construction has progressed with foundations complete and all five tanks underway, with  two at the final height.

Primary Crusher 

Progress continues on the construction of the crusher building structure. The concrete has advanced to the second of three elevations above the foundation. The apron feeder and associated chutes have been installed and the bottom shell of the primary crusher is pre-assembled for installation in August.  Conveyor foundations between the primary crusher and coarse ore stockpile are advancing along with the stockpile dome foundations. The reclaim tunnel concrete and escape tunnel concrete are complete. Pre-assembly of the three reclaim feeders and associated chute work has commenced for installation in Q3. Foundations for the process plant feed conveyor are also underway. 

Process Plant

Work in the process plant continues to expand to additional work fronts for cable tray, cable, piping and mechanical installations. Mechanical installations are proceeding in the support infrastructure areas.

Work continues on the support infrastructure with the process plant substation, lime plant and flotation blower buildings structurally complete. Mechanical installations in the lime plant and flotation blower buildings are complete, and the mechanical installations in the compressor building are underway. The control building structure has completed the fourth floor concrete and work is in progress on the final elevation.

Pre-commissioning of the concentrate filter presses is underway with completion anticipated in the coming weeks and pre-commissioning of the fire water pumping system has been completed.  Water testing has been completed in the rougher flotation cells and has progressed to the cleaner flotation cells. Preparations are underway to start pre-commissioning of the pebble crusher.

Thickeners

Construction of the three tailings thickeners progressed on plan during the quarter. Concrete works and mechanical installations for two thickeners are complete. Work is advancing on the associated infrastructure with the pumphouse building structural and mechanical rough set complete, and pipe rack construction advancing. Water testing of the clarifier and water storage tank has been completed.

Integrated Extractive Waste Management Facility 

During Q2 2025, foundation preparation for the Karatza Lakkos (KL) embankment commenced as planned with the development of the cut-off trench, drainage placement as well as engineered fill expected to commence in Q3 2025. The coffer dam continues to progress and is expected to be completed in Q3 2025. Bulk excavation in Water Management Pond 1 was completed as well as the bulk fill of Water Management Pond 2. Construction works in the low-grade ore stockpile are on-going with completion of the majority of drainage work expected in Q3 2025, followed by the commencement of placement in the lower section of the low-grade ore stockpile. Development and implementation of the water management plan is underway.

Underground Development 

Underground access development rates accelerated during Q2 2025, and are currently achieving over 200 metres per month. At the end of Q2 2025, the 350-metre level was reached, which is the bottom level of the test stopes. The first test stope blasthole drilling commenced and progressed to 19% complete by the end of June 2025. Completion of the access development and mining of the first test stope are on track for the end of 2025. The ventilation was established during Q2 when the underground mine intersected an old surface decline, which is a part of the planned ventilation network.

Engineering

Engineering works are substantially complete. The focus has been on closing out the remaining engineering activities and providing technical clarifications when required.

Procurement

All major procurement is complete. The focus continues on managing and expediting deliveries to support construction and the close-out of completed purchase orders.

Operations including Operational Readiness 

Development of the first phase of the open pit mining Management Operating System is ongoing with several systems and processes being used in daily management of the surface earthworks. Most of the initial start-up phase of open pit equipment operators have been onboarded and training on the open pit mining equipment is well underway. Open pit mining commenced in July 2025. Most of the initial equipment is on-site and commissioned. Grade control drilling covering 44% of the Phase 1 open pit has been completed. Operational readiness efforts are ongoing in Safety, Asset Management, Processing, and Supply Chain areas. Middle management for key positions in open pit mining and mobile maintenance have been recruited and onboarded with supervisory capacity to be bolstered in Q3 2025. 

Workforce

As at June 30, 2025, there were approximately 1,730 personnel working on site, including 272 Skouries employees of which 186 were Skouries operational personnel.