Assets

Notes to accompany the mineral reserve table:

1. Mineral reserves were developed in accordance with CIM (2014) guidelines.
2. Rounding may result in apparent summation differences between tonnes, grade, and contained metal content. Surface stockpile mineral reserves are estimated using production and survey data and apply the same gold equivalent (“AuEq”) formula as ELG Open Pits.
3. AuEq of total reserves is established from combined contributions of the various deposits.
4. The qualified person for the mineral reserve estimate is Johannes (Gertjan) Bekkers, P. Eng., VP of Mines Technical Services.
5. The qualified person is not aware of mining, metallurgical, infrastructure, permitting, or other factors that materially affect the mineral reserve estimates.

Notes to accompany the Media Luna Underground mineral reserves:

1. Mineral reserves are based on Media Luna Measured & Indicated mineral resources with an effective date of December 31, 2023.
2. Media Luna Underground mineral reserves are reported above an in-situ ore cut-off grade of 2.4 g/t AuEq.
3. Media Luna Underground cut-off grades and mining shapes are considered appropriate for a metal price of $1,500/oz gold (“Au”), $19/oz silver (“Ag”) and $3.50/lb copper (“Cu”) and metal recoveries of 90% Au, 86% Ag, and 93% Cu.
4. Mineral reserves within designed mine shapes assume long-hole open stoping, supplemented with mechanized cut-and-fill mining and includes estimates for dilution and mining losses.
5. Media Luna Underground AuEq = Au (g/t) + Ag (g/t) * (0.0121) + Cu (%) * (1.6533), accounting for metal prices and metallurgical recoveries.

Notes to accompany the ELG Underground mineral reserves:

1. Mineral reserves are founded on Measured and Indicated mineral resources, with an effective date of December 31, 2023, for ELG Underground (including Sub-Sill, El Limón Deep and El Limón Sur Trend deposits).
2. ELG Underground mineral reserves are reported above an in-situ ore cut-off grade of 2.8 g/t AuEq and an in-situ incremental cut-off grade of 1.6 g/t AuEq.
3. Cut-off grades and mining shapes are considered appropriate for a metal price of $1,500/oz gold ("Au"), $19/oz silver ("Ag") and $3.50/lb copper ("Cu") and metal recoveries of 90% Au, 86% Ag, and 93% Cu, accounting for the planned copper concentrator.
4. Mineral reserves within designed mine shapes assume mechanized cut and fill mining method and include estimates for dilution and mining losses.
5. Mineral reserves are reported using an Au price of US$1,500/oz, Ag price of US$19/oz, and Cu price of US$3.50/lb.
6. ELG Underground AuEq = Au (g/t) + Ag (g/t) * (0.0121) + Cu (%) * (1.6533), accounting for metal prices and metallurgical recoveries.

Notes to accompany the EPO Underground mineral reserves:

1. Mineral reserves for EPO Underground have an effective date of June 30, 2024.
2. Mineral reserves are based on EPO Underground Indicated mineral resources with an effective date of December 31, 2023.
3. EPO Underground mineral reserves are reported above an in-situ ore cut-off grade of 2.4 gpt AuEq.
4. EPO Underground cut-off grades and mining shapes are considered appropriate for a metal price of $1,500/oz gold (“Au”), $19/oz silver (“Ag”) and $3.50/lb copper (“Cu”) and metal recoveries of 87% Au, 85% Ag, and 92% Cu.
5. Mineral reserves within designed mine shapes assume long-hole open stoping and include estimates for dilution and mining losses.
6. EPO Underground AuEq = Au (gpt) + Ag (gpt) * (0.0124) + Cu (%) * (1.6920), accounting for metal prices and metallurgical recoveries.

Notes to accompany the ELG Open Pit mineral reserves and Surface Stockpiles:

1. Mineral reserves are founded on Measured and Indicated mineral resources, with an effective date of December 31, 2023, for El Limón and El Limón Sur deposits.
2. ELG Open Pit mineral reserves are reported above an in-situ cut-off grade of 1.2 g/t Au.
3. ELG Low Grade mineral reserves are reported above an in-situ cut-off grade of 0.88 g/t Au.
4. It is planned that ELG Low Grade mineral reserves within the designed pits will be stockpiled during pit operation and processed during pit closure.
5. Mineral reserves within the designed pits include assumed estimates for dilution and ore losses.
6. Cut-off grades and designed pits are considered appropriate for a metal price of $1,500/oz Au and metal recovery of 89% Au.
7. Mineral reserves are reported using an Au price of US$1,500/oz, Ag price of US$19/oz, and Cu price of US$3.50/lb.
8. Average metallurgical recoveries of 89% for Au, 30% for Ag, and 15% for Cu.
9. ELG Open Pit (including surface stockpiles) AuEq = Au (g/t) + Ag (g/t) * (0.0043) + Cu (%) * (0.2697), accounting for metal prices and metallurgical recoveries.

Notes to accompany the mineral resource table:

1. Mineral Resources were prepared in accordance with the CIM Definition Standards (May 2014) and the CIM MRMR Best Practice Guidelines (November 2019).
2. Mineral resources are depleted above a mining surface or to the as-mined solids as of December 31, 2023.
3. Gold equivalent (“AuEq”) of total mineral resources is established from combined contributions of the various deposits.
4. Mineral resources for all deposits are based on an underlying gold (“Au”) price of US$1,650/oz, silver (“Ag”) price of US$22/oz, and copper (“Cu”) price of US$3.75/lb.
5. Mineral resources are inclusive of mineral reserves.
6. Mineral resources that are not mineral reserves do not have demonstrated economic viability.
7. Numbers may not add due to rounding.
8. The estimate was prepared by Ms. Carolina Milla, P.Eng. (Alberta), Principal, Mineral Resources

Notes to accompany Media Luna Underground mineral resources:

1. The effective date of the estimate is December 31, 2023.
2. Mineral resources for Media Luna Underground are reported above a 2.0 gpt AuEq cut-off grade.
3. Metallurgical recoveries at Media Luna Underground average 90% Au, 86% Ag, and 93% Cu.
4. The assumed mining method is from underground methods, using a combination of long-hole open stoping and mechanized cut-and-fill.
5. Media Luna Underground AuEq = Au (gpt) + (Ag (gpt) * 0.0127) + (Cu (%) * 1.6104), accounting for underlying metal prices and metallurgical recoveries for Media Luna Underground.

Notes to accompany ELG Underground mineral resources:

1. The effective date of the estimate is December 31, 2023.
2. Mineral resources for ELG Underground are reported above a cut-off grade of 2.2 gpt AuEq.
3. Average metallurgical recoveries are 90% Au, 86% Ag, and 93% Cu, accounting for recoveries with planned copper concentrator.
4. The assumed mining method is underground cut and fill.
5. ELG Underground AuEq = Au (gpt) + (Ag (gpt) * 0.0127) + (Cu (%) * 1.6104), accounting for underlying metal prices and metallurgical recoveries for ELG Underground.

Notes to accompany EPO Underground mineral resources:

1. The effective date of the estimate is December 31, 2023.
2. Mineral resources for EPO Underground are reported above a 2.0 gpt AuEq cut-off grade.
3. Metallurgical recoveries at EPO average 87% Au, 85% Ag, and 92% Cu.
4. The assumed mining method is from underground methods, using long-hole open stoping.
5. EPO Underground AuEq = Au (gpt) + (Ag (gpt) * 0.0130) + (Cu (%) * 1.6480), accounting for underlying metal prices and metallurgical recoveries for EPO Underground.

Notes to accompany the ELG Open Pit mineral resources:

1. The effective date of the estimate is December 31, 2023.
2. Mineral resources for ELG Open Pit are reported above an in-situ cut-off grade of 0.78 gpt Au.
3. Average metallurgical recoveries are 89% Au, 30% Ag, and 15% Cu.
4. Mineral resources are reported inside an optimized pit shell, underground mineral reserves at ELD within the El Limón pit shell have been excluded from the open pit mineral resources.
5. ELG Open Pit AuEq = Au (gpt) + (Ag (gpt) * 0.0045) + (Cu (%) * 0.2627), accounting for underlying metal prices and metallurgical recoveries for ELG Open Pit.