Erdene Resource Development : Developing the High-Grade Khundii Minerals District, Ignite Investment Summit

Published: 2025-03-24 18:51:06 ET ERD.TO

TSX:ERD | MSE:ERDN | OTC:ERDCF

DEVELOPING THE HIGH-GRADE KHUNDII MINERALS DISTRICT

Unlocking Treasures - Sharing Benefits

Ignite Investment Summit

Hong Kong

March 26 & 27, 2025

www.erdene.com

DEVELOPING THE HIGH-GRADE KHUNDII MINERALS DISTRICT

Investment Thesis

First mover in an unexplored portion of a World Class Mineral Belt

High-grade gold development

Multimillion ounce potential

Powerful Alliance

A sleeping giant

A WINDOW OF OPPORTUNITY - LIMITED EXPLORATION IN A HIGHLY PROSPECTIVE BELT

Global distribution of giant arc related gold and copper deposits

HIGHEST POTENTIAL REGION FOR COPPER-GOLD DISCOVERIES 2010 Central Asian Orogenic Belt and Eastern Tethysides USGS

"Remoteness, harsh terrain, and lack of infrastructure impeded

exploration in many areas, with the western end of the tract having

not received much attention"*

Khundii

Minerals District

Locations of giant ore deposits discussed in this paper and significant arc-related metallogenic belts (purple lines).

Base map modified from World of Maps (© Bruce Jones Design, 2010).

EXPANDING INFRASTRUCTURE IN A GROWING MINING JURISDICTION

Less than 200km from the Chinese border, multiple mines in vicinity

Mongolian and Chinese governments are aggressively building infrastructure: three railway lines now connect to China and intra- Mongolian road and rail networks have been recently expanded

MONGOLIA

Ulaanbaatar

Trans Altai

Terrane

Khan Altai

Xinjiang Hami

Naomaohu (Tianrun) wind farm

Bayankhongor

Shinejinst

Khundii Minerals

District

Tsagaan

Tolgoi

Tavan

Tolgoi

Oyu

TolgoiLegend

ERDENE Projects

Mines & Major Projects

Jinquan

Industrial centre

Major Paved Road

Beishan

Research

Unpaved Road

Dongfeng

Laboratory

Space City

Existing Railway

Baotou

Planned Railway

Steel making

industrial centre

CHINA

International Airport

Regional Airport

Jiayuguan

Steel making

City

industrial centre

250

Yinchuan

Shijiazhuang

Taiyuan

kilometre

MAKINGS OF A MULTI-MINE, MULTI-COMMODITY DISTRICT

Multiple deposits in close proximity to be developed in sequence - more than 20 additional prospects in district

Bayan-Undur

Shinejinst

Shinejinst Coal

40 km

Altan Nar

Gold-Silver-Lead-Zinc Deposit

Zuun Mod

Moly-Copper Deposit

Khul Morit

Bayan Khundii

Copper Silver

Gold Deposit

Bayangovi

Universal Copper

ERDENE PROPERTY

OTHER OWNER

Mineral Deposits

Proposed State Rail

Proposed Zuun Mod Rail Spur

Existing Roads

Proposed Mine Access Roads

Provincial Boundary

Towns/ Soum Centres

UNITING MONGOLIA'S LEADING EXPLORER AND MINER WHILE MAINTAINING LONG TERM UPSIDE

Strategic partner with capital and operational experience

TSX : ERD

| MSE : ERDN

Eric Sprott (19%)

7,000 Mongolian

EBRD (8%)

shareholders

Erdene Mongol LLC

Gold Focused

50:50 JV with Mongolian Mining

Corporation

Bayan Khundii

Dark Horse

Gold Project

Khundii

Mining Licence

Trans Altai Terrane

Anian Resources LLC

World Class Au-Cu Belt

Cu-Mo Focused

District Scale (700 sq km AOI) Upside

100% Equity Interest

ERD 5% NSR*

Large scale copper-molybdenum project

Altan Nar

Ulaan

Zuun Mod

Khuvyn Khar

Gold-Polymetallic Project

Gold Project

Copper-Moly Project

Copper Project

Altan Nar

Ulaan

Khuvyn Khar

Mining Licence

Exploration Licence

Mining Licence

*After initial 400,000oz Au production; includes properties acquired within 5km of the licenses

FINANCIAL PARTNERS

Backing of leading international and domestic institutions

Eric Sprott

Mongolian Mining Corporation - Equity

Mongolian Mining Corporation - Loan

Trade & Development Bank of Mongolia

European Bank for Reconstruction and Development

Eric Sprott

Mongolian Stock Exchange

1. Per Fitch Ratings report

THE BAYAN KHUNDII (RICH VALLEY) GOLD MINE

BAYAN KHUNDII DEPOSIT - RESOURCE AND RESERVES

Utilizing US$1800 gold price for reserve cut-off grades and US$2000 gold price for Whittle Pit resource shells

Indicated Mineral Resource

Inferred Mineral Resource

DH Resources

Tonnage Au Grade

Contained Au Tonnage

Au Grade Contained Au

Classification

(kt)

(g/t)

(oz)

(kt)

(g/t)

(koz)

Oxide

578

3.0

56.2

1.1

2.7

Transitional

1.5

4.8

109

1.2

4.1

Total

682

2.8

61.7

184

1.2

6.8

DH Reserves

Tonnage

Au Grade

Contained Au

Classification

(Mt)

(g/t)

(koz)

Probable

0.2

7.0

48.8

Total

0.2

7.0

48.8

BK Resources

Tonnage

Au Grade

Contained Au

Ag Grade

Contained Ag

Classification

(Mt)

(g/t)

(koz)

(g/t)

(koz)

Measured

4.0

3.03

394

1.44

187

Indicated

3.3

2.04

219

1.22

131

M&I

7.4

2.58

613

1.34

319

Inferred

0.2

1.08

1.32

BK Reserves

Tonnage

Au Grade

Contained Au

Ag Grade

Contained Ag

Classification

(Mt)

(g/t)

(koz)

(g/t)

(koz)

Proven

2.7

4.1

360.2

1.7

159.4

Probable

1.1

3.0

104.7

1.7

61.1

Total

3.8

464.9

1.7

220.5

2000 m

Initial Open Pit Reserves 513,700 oz at 4 g/t Au

Gold ≥ 0.1 g/t*

Anomalous Indicator*

(±Sb, As, Qtz Veining, Alteration) Primary Target Structure Secondary Structure or Splay

*Based on drill result interpolation only

Disclaimer

Erdene Resource Development Corporation published this content on March 24, 2025, and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on March 24, 2025 at 22:50:00.824.