Dakota Gold : Latest Presentation (May 2026)

DC

Published on 05/04/2026 at 12:47 pm EDT

NYSE American: DC Investor Presentation | May 2026

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Historical U.S. Annual Gold Production 1

U.S. Gold Production Down 55%

YEARS

TONNES

2000

302

2010

209

2020

175

2024

145

U.S. Executive Order (March 20, 2025) designated critical minerals as well as gold as a focus for development in securing

U.S. domestic supply. 2

Current U.S. gold production does not meet domestic consumer demand of 679.3 tonnes in 2025. 3

(Consumer demand: sum of jewelry, technology, bar and coin, and ETF investment)

U.S. State Estimated Production 2025 1

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South Dakota Gold Production (1878-2025) 1

Homestake Mine closed in 2002

STATE

OUNCES

Nevada

4,000,000

Alaska

1,000,000

Colorado

325,000

South Dakota + Richmond Hill es t Oz

250,000

Utah

210,000

California

150,000

South Carolina

140,000

South Dakota

100,000

600,000

Troy Ounces

500,000

400,000

300,000

200,000

100,000

1880

1885

1890

1895

1900

1905

1910

1915

1920

1925

1930

1935

1940

1945

1950

1955

1960

1965

1970

1975

1980

1985

1990

1995

2000

2005

2010

2015

2020

2025

-

Source: publicly available information

U.S. Geological Survey https://www.usgs.gov/centers/national-minerals-information-center/gold-statistics-and-information

https://www.whitehouse.gov/presidential-actions/2025/03/immediate-measures-to-increase-american-mineral-production/

World Gold Council https://www.gold.org/goldhub/research/gold-demand-trends/us-gold-demand-trends-full-year-2025 3

Historical U.S. Annual Silver Production 1

YEARS

TONNES

2020

979

2021

925

2022

916

2023

925

2024

997

Silver added to the Department of Interior USGS Critical Minerals List on November 6, 2025 2 due to growing federal recognition of its importance to the U.S. economy and national security.

Current U.S. silver production does not meet domestic consumer demand of 5,805 tonnes in 2024.1

(Defined as mine production + secondary production + imports - exports ± adjustments for Government and industry stock changes.)

U.S. State Estimated Production 2025 3

STATE

TONNES

Idaho

362

Alaska

272

Nevada

226

Others

181

Total

1,043

U.S. highly reliant on imports from other countries to meet demand.1

With industrial demand rising rapidly-driven by solar, AI data server centers, electric vehicles, and next-generation

electronics-domestic supply remains limited.

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Source: publicly available information

U.S. Geological Survey https://pubs.usgs.gov/periodicals/mcs2025/mcs2025-silver.pdf

https://www.usgs.gov/news/science-snippet/interior-department-releases-final-2025-list-critical-minerals

Figures are estimates based on 2024 final data, 2025 projections, and mining company guidance. Final USGS figures are released in the following calendar year. 4

In addition to the conventional uses for gold and silver in investment and jewelry, they are critical to our everyday use in items such as cell phones and data center servers.

Cell Phones - The average smart phone contains ~ 30mg of gold (30 phones per gram of gold) and ~350mg of silver. Erickson estimates there are over 7 billion cell phones in the world.

Data Centers - Based on the workload of servers in AI data centers, there can be 1kg-3.5kg of gold. A single 500-megawatt

solar array built to power a hyperscale data center, requires approximately 300 metric tons of silver. Hines Research estimates there are 20,000 acres of server farms in the world doubling to 40,000 acres by 2030.

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5

Source: information and photos sourced from publicly available information

Dakota Gold, NYSE American: DC is a unique investment opportunity for exposure to a U.S. development stage gold asset, with Richmond Hill and high-grade gold

exploration optionality at Maitland.

dakotagoldcorp.com | NYSE-A: DC

dakotagoldcorp.com | NYSE-A: DC

Gold and Silver prices and demand at record highs during a time of production deficits

Leadership team with track record success

Advancing the Richmond Hill Gold Project, one of the largest undeveloped heap leach gold resources in the U.S. with production targeted as soon as 2029

Robust economics outlined in Initial Assessment with Cash Flow announced July 2025

Pre-Feasibility Study H2 2026 / Feasibility Study H1 2027

Maitland Unionville Zone - maiden resource end of year 2026

Principal projects on Private Land in historic Homestake District of South Dakota with existing infrastructure

Funded through Feasibility - $105M cash balance

(Cash balance consist of the $29.7M disclosed as of Dec 31, 2025 and the $75M as disclosed in the Feb 9, 2026 news releases)6

Legend - Dakota Gold holds over ~48k mineral acres in the Homestake District

Maitland

Gold Project

Private Land

(US$)

M&I plan

MI&I plan

After-tax NPV5%

$1.6 B

$2.1 B

After-tax IRR

55%

59%

Initial Capital

$384 M

$383 M

After-tax Payback (yrs)

1.7

1.5

Mine Life (yrs)

17

28

LOM Gold Prod (M ozs)

2.60

3.98

LOM Avg Annual Gold Prod (oz/yr)

153,000

142,000

LOM AISC ($/oz)

$1,047

$1,050

Richmond Hill

Richmond Hill - M&I resource

Dakota Gold Headquarters

Coeur's

Wharf Open Pit Mine (+4 M oz Au)

Maitland

Deadwood City

Homestake Mine (+40 M oz Au)

Lead City/ Headquarters

2,364 mineral acres

Exploration stage

Contiguous with Homestake Mine

Two Discoveries:

JB Gold Zone Homestake Mine-style gold mineralization

(iron formation)

Average Grade: 10.76 g/t Au over

4.0 meters

Analogous to Homestake's West Ledge System - 6 million oz gold produced with Average grade:

11.63 g/t Au over 6.1 meters

Unionville Zone shallow Tertiary

epithermal gold mineralization

Average Grade: 4 g/t Au over 6.4 meters

7

Richmond Hill

Gold Project

Private Land

Over 3,000 mineral acres

Development stage

S-K 1300 Heap Leachable Resource:

3.65 M oz M&I Gold

2.61 M oz Inferred Gold

38.1 M oz M&I Silver

22.8 M oz Inferred Silver

S-K 1300 IACF (at US $2,350/oz Au)

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(US$)

M&I plan

MI&I plan

LOM AISC (Cash Cost plus Sustaining Cost)

$1,047

$1,050

Capital Costs

Initial Capital Cost

$384.1 M

$383.4 M

Sustaining Capital Cost

$219.6 M

$232.6 M

Closure Capital Cost

$129.2 M

$73.0 M

After-tax NPV5%

$1.6 B

$2.1 B

After-tax IRR

55%

59%

Richmond Hill - IACF supports simple, open pit, heap leach project

(US$)

M&I plan

MI&I plan

Key Assumptions

Base Case Gold Price

$2,350/oz

$2,350/oz

Base Case Silver Price

$29.00/oz

$29.00/oz

Production Profile

Total Tonnes Processed (Mt)

168.3

273.7

Strip Ratio

0.66

0.44

Heap Leach Feed Grade (oz/ton)

0.017

0.015

Heap Leach Feed Grade (g/t)

0.566

0.530

Mine Life (years)

17

28

Throughput (MTPA)

10.0

10.0

Gold Recovery (kozs)

85.1%

85.4%

Silver Recovery (kozs)

28.7%

28.8%

LOM Gold Payable (kozs)

2,604

3,982

LOM Silver Payable (kozs)

8,737

12,905

LOM Average Annual Gold Payable

153,000

142,000

Gold Recovery

68.3%

72.6%

76.9%

81.1%

85.4%

Gold Price

After-tax NPV5% (US$ M) for MI&I plan

$2,350

$1,389

$1,571

$1,752

$1,932

$2,113

$2,750

$1,915

$2,127

$2,338

$2,549

$2,761

$3,150

$2,439

$2,682

$2,924

$3,167

$3,409

$3,550

$2,964

$3,237

$3,511

$3,784

$4,057

$3,950

$3,488

$3,792

$4,096

$4,401

$4,705

$4,150

$3,750

$4,070

$4,389

$4,709

$5,029

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M&I plan

153,000 oz/yr

GOLD PRODUCTION

2.6 Moz

GOLD

LOM PRODUCTION

(17-year mine life)

8.7 Moz

SILVER

LOM PRODUCTION

(17-year mine life)

US$1,047/oz

LOM AISC

(US$2,350/oz Gold Price) (US$29/oz Silver Price)

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North

Water Treatment Plant

Overburden Storage Area (16MM tons)

580 acres of net disturbance is anticipated with the initial permit

Initial mining to start in higher value northern portion of Project and continue to progress south over life of mine

Mined Area

Merrill Crowe Plant

Crushing Facilities

Haul Road Truck Shop

Leach Pad 1 (18.2MM tons)

Admin, Security Gate

Wash Bay, Tire Change. Fuel

Property Boundary

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New Permit - Mine Area Leach Pad

Overburden Storage

Property Boundary Site Infrastructure Haul Road

Plan View 10

Concurrent reclamation with mining to reduce disturbance footprint

Backfill and shaped to fulfill final

North

Leach Pad 3 (35.6MM tons)

Mined Area

Water Treatment Plant

Reclaimed Mined Area

Overburden Storage Area (Reclaimed)

Leach Pad 2 (44.4MM tons)

Storm Event Conveyance Spillway

designed and approved topography

Area revegetated to final presented and approved revegetation plans

Area to include storm water

management designed and approved in management plan

Final Area to be Mined

Merrill Crowe Plant

Crushing Facilities

Haul Road Truck Shop

Admin, Security Gate

Wash Bay, Tire Change. Fuel

Leach Pad 1 (51.5MM tons)

Property Boundary

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New Permit - Mine Area Leach Pad

Overburden Storage Final Area to be Mined

Property Boundary Site Infrastructure Haul Road Reclaimed Area

Plan View 11

The metallurgical testing program is in progress and scheduled completion in Q3 2026, with

staged testing and reporting milestones throughout.

Metallurgical testing scope of work:

Ore Characterization & Preliminary Testing

Column Leach Testing

Comminution & Crushing Studies

Process Optimization & Recovery

Deleterious Elements & Environmental Testing

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Total of 29,524 meters (96,865 feet) of drilling in 242 holes completed in the 2025 campaign.

Campaign included infill, expansion, metallurgical, site infrastructure and water well testing that will inform the 2026 Pre-Feasibility Study.

Three of the highest-grade gold intervals from the campaign were located in the northeast project area:

RH25C-310 - 5 g/t Au and 28.64 g/t Ag over 24.9m (124 gram meters Au)

o Incl. 60.82 g/t Au and 61.68 g/t Ag over 1.5m (89 gram meters Au)

RH25C-348 - 2.46 g/t Au and 19.16 g/t Ag over 32.7m (81 gram meters Au)

RH25C-162 - 1.85 g/t Au and 25.39 g/t Ag over 43.4m (80 gram meters Au)

800-Meter-Wide Section Map Looking East

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OSA

South Infrastructure

10-Year Mine Plan

Northern Exp

Total of 15,481 meters (50,790 feet) of drilling in 109 holes

10-Year Mine Plan

o 6,700 meters (22,040 feet)

Infill drilling within the 10-Year mine plan to convert inferred to measured and indicated

Northern Expansion:

2,300 meters (7,500 feet)

Step-out drilling to add ounces north and north-east of the 10-year mine plan

Overburden Stockpile Area (OSA):

3,200 meters (10,580 feet)

Condemnation drilling for the proposed OSA

South Infrastructure

1,000 meters (3,220 feet)

Condemnation drilling for the initial heap leach pad

Geotech (Not shown)

2,300 meters (7,450 feet)

Geotechnical drilling into pit walls for pit slope stability studies

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Mining and Stacking Tonnage Rates

IACF 30,000 tpd versus 60,000 tpd optimized mining throughput and stacking rate to maximize ounce profile, cash flow, LOM timeline, and overall project financials

Crushing and stacking rates will drive sizing and configuration of crushing circuit and Merrill-Crowe recovery plant

Mine Sequencing

Evaluating opportunities to sequence mining in areas with higher grade gold in initial years

Truck Stacking versus Conveyor Stacking

Greater operational flexibility & efficiency with truck stacking versus conveyor stacking...especially at higher tonnage rates

Pad placement, stacking rates, & pad geometry all factors that impact stacking methodology selection

Agglomeration

The requirement for agglomeration will be driven by ore characteristics and permeability testing conducted during metallurgical testing program

Heap Leach Pad Location, Quantity, Sizing, and Purpose

Siting study will inform suitable locations for operationally stable and efficient leach pad placement

Regulated surface disturbance will determine area extent of pads

Engineering and design of heap leach pads will likely be a hybrid of stationary and "non-permanent" (i.e. on-off)

15

Conveyor Stack

Truck Stack

Agglomeration

Heap Leach Design

Location:

Project 15-minute drive from headquarters in Lead

Labor:

South Dakota provides access to labor for exploration through to production

Infrastructure:

Project has an existing powerline and road connected to grid

As the project has a population catchment of 200,000 within a one-hour drive of the project, necessary services are available and there is no need for camp facilities

Dakota Gold Project Map

JB Gold Zone

Richmond Hill 3 km north of Wharf

Unionville Zone

Proposed Powerline

Maitland

Existing Powerline

Access road

Homestake Option

Homestake Open Cut

City of Lead and Dakota Gold Headquarters

Coeur's Wharf Mine

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2026 2027 2028 2029 2030

Pre-Feasibility Study (PFS) / Feasibility Study (FS)

Baseline Data Collection Permitting

County Conditional Use Permit

Mine Permit - SD DANR

Notice of Intent

Engineering & EPCM

Construction 1 Production

1. See news release Feb 6, 2025 re Barrick Gold has extended the option period for the Richmond Hill option agreement until December 31, 2028 with Dakota Gold.

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Gold bearing Homestake Formation (red to blue; shallow to deep)

Gold Mineralization in Ledges

Mined out ore bodies (Precambrian Au) Projected to the surface

DC Precambrian Au drill hole intercepts Projected to the surface

Blind Gold Target

JB Gold Zone

Maitland Project

Unionville Zone (Tertiary Au)

Homestake Mine Open Cut

Main Ledge System

Ore ledge outlines

projected into the

(Precambrian Au)

0 5,000

feet

North Drift Discovery (Precambrian Au)

West Ledge System

section

(Precambrian Au)

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JB Gold Zone

- Approx. 47 Drill Holes from surface

- Avg grade of 10.76 g/t Au and width of 4.0 m

West Ledge System - 6 million oz gold produced

- Approx. 6,000 Drill Holes underground

- Avg grade of 11.63 g/t Au and width of 6.1 m 18

Maitland - JB Gold Zone analogous to West Ledge System

300

meters

North

1.5 m @

8.24 g/t

2.5 m @

5.25 g/t

South

6.4 m @

9.46 g/t

4.4 m @

2.0 m @

4.70 g/t

5.5 m @

3.84 g/t

25.03 g/t

6.4 m @

4.77 g/t

5.0 m @

19.54 g/t

3.2 m @

10.01 g/t

21 Ledge

2.5 M oz Au

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600 Meters

Long Section View

Homestake Mine 21 Ledge System Outline Drawn to Scale for Comparison to Maitland Homestake Drill Intercepts

Maitland - Unionville Zone long section

MAITLAND - UNIONVILLE ZONE LONG SECTION VIEW LOOKING EAST

2026 maiden resource infill drill

Untested Area

A A'

Untested Area

A campaign location A'

1500 m EL

1000 m EL

200 m

Modeled mineralization zone with drillhole pierce points and grade-thickness contours

Grade - Thickness Grams gold X meters

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To date 25 drill hole intersections have been made into the tertiary Unionville

5000 m N

4500 m N

4000 m N

3500 m N

Zone averaging a grade of ~ 4 g/t Au over 6.4 meters 20

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Disclaimer

Dakota Gold Corporation published this content on May 04, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on May 04, 2026 at 16:46 UTC.