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Reporting assumptions

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Ownership basis

Show the full project inventory before ownership adjustment.

Display scale

Display contained quantities in millions of ounces or tonnes.

Resource treatment

Normalise Resources to exclude Reserves: where a project is flagged inclusive, net Reserves out of Resources so the figure is additional Resources beyond Reserves. Unknown-convention rows are shown as stated.

Resource total

Total Resource includes Inferred (JORC convention). Totals are re-derived from category rows wherever the document discloses them.

Recovery basis

Show the issuer's headline recoverable figure as reported. Lithium-brine reserves already have the brine-processing recovery factor applied; everything else is shown as stated.

Commodity view

Primary view: each commodity in its own contained unit (oz / t).

Camino Rojo

Zacatecas, Mexico · Producing · 100.0% ownedUnverified

Current R&R by category

Whole-project rollup at the latest vintage per category: printed project-level rows are preferred, and mining areas are summed (tonnes-weighted grade) only where the issuer prints no project-level row. Per-area and per-source detail in the Current R&R table below.

Au

Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	As at
Measured	0.01 Mt	1.95 g/t	0.44 koz	31 Mar 2025
Indicated	50.08 Mt	2.45 g/t	3.95 Moz	31 Mar 2025
M&I = Measured + Indicated (overlaps both)	90.22 Mt	1.71 g/t	4.95 Moz	31 Dec 2025
Inferred	5.58 Mt	2.21 g/t	0.40 Moz	31 Mar 2025
Total Resources	57.59 Mt	2.44 g/t	4.52 Moz	31 Mar 2025
Proved	2.92 Mt	0.73 g/t	0.07 Moz	31 Dec 2025
Probable	28.79 Mt	0.75 g/t	0.69 Moz	31 Dec 2025
Total Reserves	31.71 Mt	0.74 g/t	0.76 Moz	31 Dec 2025

M&I is the issuer's printed Measured + Indicated subtotal — it overlaps the Measured and Indicated rows and is never added alongside them; the Total rows and every rollup already exclude it.

Ag

Category	Tonnes (Mt)	Grade (g/t Ag)	Contained (Moz Ag)	As at
Measured	0.01 Mt	31.50 g/t	0.01 Moz	31 Mar 2025
Indicated	50.08 Mt	10.60 g/t	17.05 Moz	31 Mar 2025
M&I = Measured + Indicated (overlaps both)	90.22 Mt	12.32 g/t	35.71 Moz	31 Dec 2025
Inferred	5.58 Mt	10.90 g/t	1.95 Moz	31 Mar 2025
Total Resources

Zn

Category	Tonnes (Mt)	Grade (% Zn)	Contained (Mt Zn)	As at
Measured	—	—	—	—
Indicated	35.90 Mt	0.35%	0.13 Mt Zn	31 Mar 2025
M&I = Measured + Indicated (overlaps both)	48.18 Mt	0.38%	0.18 Mt Zn	30 Sept 2025
Inferred	2.81 Mt	0.42%	0.01 Mt Zn	31 Mar 2025
Total Resources	38.71 Mt

Cut-off grade

59.0200 g/t Au · 8.4400 g/t Ag · 59.0200 g/t Ag · 8.4400 g/t Au · 57.0000 g/t Ag · 57.0000 g/t Au · 76.2300 g/t Au · 57.0000 % Zn · 76.2300 % Zn · 68.7300 g/t Au · 76.2300 g/t Ag · 68.7300 g/t Ag

Price assumption

US$2300.00/oz · US$2800.00/oz

JORC code year

—

Peer benchmark — producing Au projects (282 with resources)Resource size P74Resource grade P67View on grade-tonnage chart →

Percentile of this project's current total Resource among covered peers (P100 = largest / highest grade). Basis and Inferred toggles apply.

Data quality

Latest source: Orla Mining Annual Information Form FY2025 (R&R eff. 31 Dec 2025 incl. Musselwhite) · 31 Dec 2025
Reporting code: unknown
Convention: inclusive
Currency assumption: US$
Disagreement flags: 3 rows

Current R&R

Resources

Area	Category	Tonnes (Mt)	Au		Ag		Zn		As at	Source	Provenance
Area	Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	Grade (g/t Ag)	Contained (Moz Ag)	Grade (% Zn)	Contained (Mt Zn)	As at	Source	Provenance
Total	Measured	0.01 Mt	1.95 g/t	0.44 koz	31.50 g/t	0.01 Moz	—	—

Total

Indicated

35.90–50.08 Mt

2.45 g/t

3.95 Moz

10.60 g/t

17.05 Moz

0.35%

0.13 Mt Zn

31 Mar 2025

Table 1: Camino Rojo Underground Mineral Resource Estimate – Total - Gold rowUnverified

notes (5)

Source: Orla Mining Delivers Initial Underground Mineral Resource for Camino Rojo in Mexico, Paving the Way for Future Development Planning · published 05 June 2025

Ref: Table 1: Camino Rojo Underground Mineral Resource Estimate – Total - Gold row

Unknown code — Reporting code not yet captured for this row.
Cutoff 59.02 g/t Au — Cut-off grade assumption from the source statement.
@ US$ 2,300/oz — Metal price assumption used to derive this estimate.

QA notes:

QA WARN: tonnes/contained equal the SUM of 3 sibling row(s) of the same classification/category/commodity (Heap leach, CIL, FLOT/POX/CIL) — likely a printed multi-deposit rollup/subtotal. Policy keeps leaf rows and printed whole-project Totals only; reject mid-level rollups (double-count). QA WARN: mining_area 'Total - Gold' looks like a table SUBTOTAL line, not a leaf area — approving it alongside the leaf areas double-counts. Reject it (or reject the leaves) before approval.
QA fix: printed 'Total - Gold' Indicated line (50,079 kt, 2.45 g/t, 3,949 koz) is the issuer's whole-project total; area-null is the shape policy keeps beside the leaves

Total

Inferred

2.81–5.58 Mt

2.21 g/t

0.40 Moz

10.90 g/t

1.95 Moz

0.42%

0.01 Mt Zn

31 Mar 2025

Table 1: Camino Rojo Underground Mineral Resource Estimate – Total - Silver rowUnverified

notes (5)

Source: Orla Mining Delivers Initial Underground Mineral Resource for Camino Rojo in Mexico, Paving the Way for Future Development Planning · published 05 June 2025

Ref: Table 1: Camino Rojo Underground Mineral Resource Estimate – Total - Silver row

Unknown code — Reporting code not yet captured for this row.
Cutoff 59.02 g/t Ag — Cut-off grade assumption from the source statement.
@ US$ 2,300/oz — Metal price assumption used to derive this estimate.

QA notes:

QA WARN: tonnes/contained equal the SUM of 3 sibling row(s) of the same classification/category/commodity (Heap leach, CIL, FLOT/POX/CIL) — likely a printed multi-deposit rollup/subtotal. Policy keeps leaf rows and printed whole-project Totals only; reject mid-level rollups (double-count). QA WARN: mining_area 'Total - Silver' looks like a table SUBTOTAL line, not a leaf area — approving it alongside the leaf areas double-counts. Reject it (or reject the leaves) before approval.
QA fix: printed 'Total - Silver' Inferred line (5,576 kt, 10.9 g/t, 1,949 koz) is the whole-project total

Oxide

M&I = Measured + Indicated (overlaps both)

42.04 Mt

0.84 g/t

1.14 Moz

13.60 g/t

18.40 Moz

—

31 Dec 2025

17Unverified

notes (7)

Source: Orla Mining Annual Information Form FY2025 (R&R eff. 31 Dec 2025 incl. Musselwhite) · published 19 Mar 2026

Ref: 17

Unknown code — Reporting code not yet captured for this row.
Cutoff 8.44 g/t Ag — Cut-off grade assumption from the source statement.
@ US$ 2,800/oz — Metal price assumption used to derive this estimate.
inc — Stated Resources are inclusive of Reserves. Set Resources: Excl. Reserves to net them out.

QA notes:

QA WARN: cross-category subtotal — this total_resource row on area 'Oxide' equals the sum of the same area's measured+indicated leaves — a per-deposit M&I/P&P-style total (t24 LUN/LUG NI 43-101 class). Policy keeps category leaves + the whole-project Total; adjudicate per the per-property-totals precedent before approval.
QA reject: re-presentation of an approved estimate: combined Measured-and-Indicated row stored as total_resource - printed source is the AIF "Measured and Indicated" column (42,038 kt / 13.6 g/t / 18,400 koz); re-key to m_and_i after the migration
m_and_i re-key post-migration-0030: print-verified combined M&I, category was the only defect

Sulphide

M&I = Measured + Indicated (overlaps both)

48.18 Mt

2.46 g/t

3.81 Moz

11.20 g/t

17.31 Moz

0.38%

0.18 Mt Zn

30 Sept 2025

17Unverified

notes (7)

Source: Orla Mining Annual Information Form FY2025 (R&R eff. 31 Dec 2025 incl. Musselwhite) · published 19 Mar 2026

Ref: 17

Unknown code — Reporting code not yet captured for this row.
Cutoff 57.00 g/t Ag — Cut-off grade assumption from the source statement.
@ US$ 2,800/oz — Metal price assumption used to derive this estimate.
inc — Stated Resources are inclusive of Reserves. Set Resources: Excl. Reserves to net them out.

QA notes:

QA WARN: cross-category subtotal — this total_resource row on area 'Sulphide' equals the sum of the same area's indicated leaves — a per-deposit M&I/P&P-style total (t24 LUN/LUG NI 43-101 class). Policy keeps category leaves + the whole-project Total; adjudicate per the per-property-totals precedent before approval.
QA reject: re-presentation of an approved estimate: combined Measured-and-Indicated row stored as total_resource - printed source is the AIF "Measured and Indicated" column (48,178 kt / 11.2 g/t / 17,308 koz); re-key to m_and_i after the migration
m_and_i re-key post-migration-0030: print-verified combined M&I, category was the only defect

Reserves

Area	Category	Tonnes (Mt)	Au		Ag		Zn		As at	Source	Provenance
Area	Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	Grade (g/t Ag)	Contained (Moz Ag)	Grade (% Zn)	Contained (Mt Zn)	As at	Source	Provenance
Oxide	Proved	2.92 Mt	0.73 g/t	0.07 Moz	18.10 g/t	1.70 Moz	—	—	31 Dec 2025	15Unverified Evidence record Camino Rojo Proved · Au · as at 2025-12-31 Reported figure Area Oxide Basis 100% Ore tonnes (t) 2920000.0000 Grade 0.7300 Contained (oz) 68000.0000 Classification Reserve Source trail Orla Mining Annual Information Form FY2025 (R&R eff. 31 Dec 2025 incl. Musselwhite) 15 Published 2026-03-19 Verification Approved; not independently verified · Model extracted QA INFO: inclusive-of-reserves flag cleared — the flag describes resource statements; reserve rows carry none. Copies a pre-filled issue record so you can send it through your normal channel.	notes (4) Source: Orla Mining Annual Information Form FY2025 (R&R eff. 31 Dec 2025 incl. Musselwhite) · published 19 Mar 2026 Ref: 15 Unknown code — Reporting code not yet captured for this row. Cutoff 8.44 g/t Au — Cut-off grade assumption from the source statement. @ US$ 2,300/oz — Metal price assumption used to derive this estimate. QA notes: QA INFO: inclusive-of-reserves flag cleared — the flag describes resource statements; reserve rows carry none.
Oxide	Probable	28.79 Mt	0.75 g/t	0.69 Moz	14.70 g/t	13.58 Moz	—	—	31 Dec 2025	15Unverified Evidence record Camino Rojo Probable · Au · as at 2025-12-31 Reported figure Area Oxide Basis 100% Ore tonnes (t) 28794000.0000 Grade 0.7500 Contained (oz) 690000.0000 Classification Reserve Source trail Orla Mining Annual Information Form FY2025 (R&R eff. 31 Dec 2025 incl. Musselwhite) 15 Published 2026-03-19 Verification Approved; not independently verified · Model extracted QA INFO: inclusive-of-reserves flag cleared — the flag describes resource statements; reserve rows carry none. Copies a pre-filled issue record so you can send it through your normal channel.	notes (4) Source: Orla Mining Annual Information Form FY2025 (R&R eff. 31 Dec 2025 incl. Musselwhite)
Oxide	Total Reserves	31.71 Mt	0.74 g/t	0.76 Moz	15.00 g/t	15.28 Moz	—	—	31 Dec 2025	15Unverified Evidence record Camino Rojo Total Reserve · Au · as at 2025-12-31 Reported figure Area Oxide Basis 100% Ore tonnes (t) 31714000.0000 Grade 0.7400 Contained (oz) 759000.0000 Classification Reserve Source trail Orla Mining Annual Information Form FY2025 (R&R eff. 31 Dec 2025 incl. Musselwhite) 15 Published 2026-03-19 Verification Approved; not independently verified · Model extracted QA INFO: inclusive-of-reserves flag cleared — the flag describes resource statements; reserve rows carry none. Copies a pre-filled issue record so you can send it through your normal channel.	notes (4) Source: Orla Mining Annual Information Form FY2025 (R&R eff. 31 Dec 2025 incl. Musselwhite)