Mr. Jason Simpson reports

ORLA MINING PROVIDES UPDATE ON PIT WALL EVENT AT CAMINO ROJO

Orla Mining Ltd. has provided a status update on the recent pit wall event that occurred at its Camino Rojo oxide mine in Zacatecas, Mexico.

Summary detail:

• Pit wall event: Camino Rojo experienced an uncontrolled material movement on the north wall on July 23, 2025, resulting in no injuries or equipment damage.
• Assessment: A geotechnical assessment, supported by third party consultants, has been continuing, which has informed an action plan and safe restart of mining.
• North wall stabilization: A 50-to-80-metre pushback of the north wall is planned, with a redesigned slope and continuous monitoring to ensure safe operating conditions. Approximately 9.0 million tonnes of predominantly oxidized material (1:0.9 strip ratio, 0.74 gram per tonne gold) is expected to be removed and then crushed and stacked on the heap leach from the north wall. No material was lost or sterilized in the pit wall event, but, rather, the update to 2025 guidance is attributed to a deferral of production at Camino Rojo due to grade and recovery mix.

"While the north wall event at Camino Rojo was a temporary setback, it has reinforced the importance of our pit wall monitoring, technical planning, risk management and operational discipline. The team on site acted quickly before the event to ensure safety. Following the event, our broader team, supported by expert consultants, rapidly implemented a comprehensive action plan that prioritizes safety, reinforces slope stability and allows for continued operations in Mexico, important for all stakeholders," stated Jason Simpson, president and chief executive officer of Orla.

Pit wall event context

As reported on July 23, 2025, and updated on July 24, 2025, Camino Rojo experienced an uncontrolled material movement along the temporary north wall of the open pit. Importantly, there were no injuries, equipment damage or environmental impacts resulting from the event. Ramp access to the pit remained intact; however, open-pit mining operations were temporarily suspended while the company undertook a geotechnical assessment to support a safe action plan and restart of in-pit mining activities.

Geotechnical assessment

Orla, with support from external consultants, has been conducting a comprehensive geotechnical assessment of the pit wall event to determine its root cause, to assess the stability of the surrounding area and to establish an action plan. Findings have informed the action plan and updates to standard operating procedures within the pit to ensure safety. The material movement was bounded by two faults acting as release features from increased pore pressure due to rainfall and the steepness of the interwall angle.

Action plan and open-pit mining restart

The current action plan includes mining from surface downward to push back and stabilize of the entire north wall to re-establish safe working conditions on the north side of the pit. The north wall will be re-established at a lower overall slope at single 10-metre benches based on a design that reduces the risk of overtoppling. Continuous monitoring of the north wall will be undertaken with the slope stability radar, already in place, by the operational team and supported by external experts. Additionally, trigger action response plans (TARPs) will be strengthened to provide additional safety measures while the work is being completed.

The material removed from the north wall section of the pit is predominantly oxidized, with an ore-to-waste strip ratio of 1:0.9 and an anticipated average gold grade of 0.74 gram per tonne. This ore material will be crushed and stacked on the heap leach over the coming months. The current expectation is to push back approximately 50 to 80 metres from the edge of the existing pit wall, which is anticipated to result in the removal of approximately 9.0 million tonnes, which will be crushed and stacked on the heap leach.

Guidance update

Since the pit wall event on July 23, 2025, Camino Rojo has continued to crush and stack stockpiled material at a rate of approximately 20,000 tonnes per day (in addition to 20,000 tonnes per day being truck stacked) to mitigate the short-term impact on production. Based on the current action plan and Camino Rojo's updated pit sequencing, Orla's annual production, cash costs and all-in sustaining cost (AISC) guidance has been updated and is shown below.

About Orla Mining Ltd.

Orla's corporate strategy is to acquire, develop and operate mineral properties where the company's expertise can substantially increase stakeholder value. The company has three material projects, consisting of two operating mines and one development project, all 100 per cent owned by the company: (1) Camino Rojo, in Zacatecas state, Mexico, an operating gold and silver open-pit and heap-leach mine; the property covers over 139,000 hectares and contains a large oxide and sulphide mineral resource; (2) the Musselwhite mine, in Northwestern Ontario, Canada, an underground gold mine that has been in operation for over 25 years and produced over six million ounces of gold, with a long history of resource growth and conversion; and (3) South Railroad, in Nevada, United States, a feasibility-stage, open-pit, heap-leach gold project, located on the Carlin trend in Nevada. The technical reports for the company's material projects are available on Orla's website and on SEDAR+ and EDGAR under the company's profile.

Qualified person statement

The scientific and technical information in this news release was reviewed and approved by J. Andrew Cormier, PEng, chief operating officer of the company, who is the qualified person as defined under National Instrument 43-101, Standards of Disclosure for Mineral Projects.

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