Erdene Resource Development Corp.

Developing a New Gold District in Southwest Mongolia

Certain information regarding Erdene ("the Company") contained herein may constitute forward-looking statements within the meaning of applicable securities laws. Forward-looking statements may include estimates, plans, expectations, opinions, forecasts, projections, guidance or other statements that are not statements of fact. Although the

Company believes that the expectations reflected in such forward-looking statements are reasonable, it can give no assurance that such expectations will prove to have been correct. The Company cautions that actual performance will be affected by a number of factors, many of which are beyond the Company's control, and that future events and results may vary substantially from what the Company currently foresees. Factors that could cause actual results to differ materially from those in forward-looking statements

include market prices, exploitation and exploration results, continued availability of capital and financing and general economic, market or business conditions. All Mineral Resources for Altan Nar reported in this presentation represent estimates as at 19th February, 2015. RungePincockMinarco (“RPM”) have considered the costs,

recoveries and dilutions expected by comparing with other similar deposits in the region and adjusted these by considering the location of the Project and the deposit characteristics. Mineral Resource grades are reported in accordance with the CIM Standards.

Mineral Resource Estimates for Altan Nar are reported on a dry in-situ basis. Gold equivalent (“AuEq”) values are used in an effort to express the combined value of gold, silver, lead and zinc as a percentage of gold, and are provided for illustrative purposes only. No allowances have been made for recovery losses that may occur should mining eventually

result. Calculations use metal prices of US $1,200/oz gold, $18/oz silver, and $0.90/lb for lead and zinc.

The Mineral Resource estimates for Altan Nar has been compiled under the supervision of Mr. Jeremy Clark who is a full-time employee of RPM and a Member of the Australian Institute of Geoscientists. Mr. Clark has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity that he has

undertaken to qualify as a Qualified Person as defined in the CIM Standards of Disclosure.

Please refer to the NI 43-101 compliant mineral resource report for Altan Nar, dated March 24, 2015, entitled “Altan Nar Gold Project, National Instrument 43-101 Mineral Resource Technical Report”, available on the Company’s profile at www.sedar.com, as well as the Company’s news release dated March 31, 2015, for further details on the Altan Nar mineral

resource estimate. Reported drill hole intervals at Altan Nar represent drill intersection widths with most holes drilled at a 45 degree angle. For the Discovery Zone, the orientation of the

mineralization is near vertical and therefore true width is interpreted to be approximately 70% of the reported intervals. For Union North the mineralized zone has an interpreted dip of 45 degrees therefore true width is close to reported drill hole intervals. All holes in Union North were drilled perpendicular to the trend of mineralization.

All other technical/geologic information contained herein has been reviewed and approved by Michael MacDonald, P.Geo. (Nova Scotia), Director of Exploration for Erdene, who is the Qualified Person as that term is defined in National Instrument 43-101. All samples have been assayed at SGS Laboratory in Ulaanbaatar, Mongolia. In addition to internal

checks by SGS Laboratory, the Company incorporates a QA/QC sample protocol utilizing prepared standards, blanks and duplicates.

The Company's forward-looking statements are expressly qualified in their entirety by this cautionary statement. The information contained herein is stated as of the current date and subject to change after that date.

Unless otherwise indicated, all dollar values herein are in C$.

Forward Looking Statements

2

3

Prolific Tian Shan Gold Belt Includes some of the largest economic gold accumulations in the world Second only to Witwatersrand in South Africa for known gold resources

Major Porphyry-Epithermal Gold Terranes and Deposits

4

Tian Shan Gold Belt 2014-15 Gold Production Highlights

Polymetal buys Bakyrchik Gold

Projects: US$618M

Bayan Airag: First gold production in

Q2-2014

Centerra Gold advances 1.6 Moz Gatsuurt gold

deposit

Polymetal, 130,000 oz Au in concentrate (Mayskoye)

refined in China

China Gold production increases

22% to 180,674 oz Au

Eldorado’s three China gold mines produced >

360,000 oz Au

Kinross’s Kupol, 37% increase in production to

~750,000 oz Au

Turquoise Hill (Rio Tinto), 589,000 oz Au

produced

5

Southern Mongolia Mining Activity & Regional Infrastructure Build-Up

Major Infrastructure Development With Access to Equipment & Manufacturing

6

4 Million Hectare Exploration Program Deep Seated Regional Structures

Altan Nar

Extensive Geochemical Soil Anomaly Discovery - Ancient Pit

200 km 20 km

2 km

Lead Gold

Southwest Epithermal Gold District Erdene Grassroots Discovery (100% Owned)

2km

7

Erdene Projects - Emerging Gold District

8

Initial 43-101 Resource in 1Q15 Near-Surface Portion for First 2 of 18 Targets

High-Grade System 1Q15 Drilling Includes 19 m @ 7.8 g/t Gold Equiv.

Near-Surface 90% of Resources Within 150 m of Surface

100% Ownership in Project No Related Royalties or Burdens

Significant Exploration Upside Limited Drilling on Remaining 16 Targets Along 5.6 km Trend

Carbonate Gold, Base Metal System Analogous to Some of Asia’s Largest Gold Deposits

Altan Nar Gold Project – Highlights Discovered 2011

9

Discovery Zone

Highlights

Union North

500m

Altan Nar Gold Project Initial Resource Estimate on First 2 of 18 Targets

Extent of Initial 1Q15 Resource

§  18 targets along 5.6 km trend

§  Average vertical drilling depth: 105 metres

§  Initial 1Q15 NI 43-101 Resource Estimate:

§  62% of total drilling confined to DZ and UN

§  Resource open in all directions

§  88% drilling success rate intersecting target mineralized zones

§  Exploration license in 6th of 12th year

10

7 m @ 7.1 g/t AuEq

21 m @ 3.0 g/t AuEq

16 m @ 7.1 g/t AuEq

19 m @ 7.8 g/t AuEq

16 m @ 8.7 g/t AuEq

8 m @ 6.0 g/t AuEq

94 m @ 1.0 g/t AuEq

11 m @ 2.6 g/t AuEq

15 m @ 3.7 g/t AuEq (T)

Altan Nar Gold Project - Discovery Zone Intensely Mineralized, Near Surface, Open to North & at Depth

Cross-section on following slide

Altan Nar Gold Project - Discovery Zone Cross Section

11

Continuous, High-Grade Mineralization From Surface and Open at Depth

11 m @ 4.6 g/t AuEq

16 m @ 8.7 g/t AuEq

19 m @ 7.8 g/t AuEq OPEN

12

Altan Nar Gold Project - Union North Multiple Mineralized Structures Open in All Directions

19 m @ 15.2 g/t AuEq (T)

28 m @ 2.5 g/t AuEq (T)

9 m @ 6.2 g/t AuEq

5 m @ 7.7 g/t AuEq

12 m @ 5.3 g/t AuEq

9 m @ 7.6 g/t AuEq (T)

12 m @ 5.4 g/t AuEq

9 m @ 5.4 g/t AuEq

6 m @ 6.7 g/t AuEq (T)

11 m @ 6.7 g/t AuEq (T)

30 m @ 1.4 g/t AuEq

10 m @ 4.1 g/t AuEq

3Q-2015 Drill/Trench Result

Previous Drill/Trench Result

13

High-Grade, Near-Surface Resource Estimate on First 2 of 18 Priority Targets (open in all directions)

500m

Initial Resource Areas

Note: See Forward Looking Statements on slide 2 for cautionary statements as related to the above mineral resource estimates

Altan Nar Gold Project 1Q-2015 Initial Resource Estimate (First Two Deposits)

Cut-Off Resource Tonnes Au Ag Pb Zn AuEq

AuEq, g/t Category Mln g/t g/t % % g/t oz

0.4 Indicated 4.55 0.80 8.2 0.40 0.51 1.39 203,800

Inferred 4.23 0.65 8.3 0.31 0.45 1.17 158,800

0.6 Indicated 3.37 1.03 9.4 0.47 0.57 1.71 184,900

Inferred 3.02 0.85 9.4 0.35 0.51 1.43 139,300

0.8 Indicated 2.50 1.33 10.4 0.51 0.60 2.06 165,300

Inferred 2.00 1.19 10.1 0.38 0.54 1.81 116,500

1.0 Indicated 1.85 1.71 11.1 0.54 0.61 2.47 146,800

Inferred 1.50 1.49 10.4 0.39 0.54 2.12 102,100

1.2 Indicated 1.50 2.03 11.5 0.56 0.60 2.80 134,400

Inferred 1.17 1.77 10.7 0.39 0.53 2.41 90,600

2.0 Indicated 0.82 2.99 13.5 0.63 0.63 3.83 100,900

Inferred 0.61 2.47 11.8 0.45 0.58 3.18 62,500

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Altan Nar Strategic Option Analysis Metallurgy, Process Options, Infrastructure

Source: Blue Coast Research Ltd. Altan Nar Metallurgical Study, 3Q-2015

Processing Flowsheet

Assay Recovery Mass Au Ag Pb Zn Au

(%) Ag (%)

Pb (%)

Zn (%) (%) (g/t) (g/t) (%) (%)

Head Grade 100 2.5 16.1 0.81 0.67 - - - -

Flotation

Lead Concentrate 0.97 229.1 1,029 61.87 5.53 74.7 64 74.4 7.8

Zinc Concentrate 0.84 20.2 242 5.78 50.28 5.7 13 6.0 61.3

Sulphide Concentrate 4.01 6.2 14 0.82 0.52 8.4 3.5 4.1 3.1

Combined 5.82 - - - - 88.8 81 84.5 72.2

Cyanidation (48 hour) 100 - - - - 87.8 64 - -

§  Strategic Option Analysis being completed by RPM(“RungePincockMinaraco”)

§  Metallurgical Testing Program completed by Blue Coast Research Ltd. On Discovery Zone North Material §  Gold responded very well to direct leaching with recoveries of 88%

§  High-grade gold-lead-silver concentrates can be produced with good recoveries using conventional lead-zinc differential flotation

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Bayan Khundii Gold Discovery

16

§  New discovery made by Erdene geologists on 100% owned licence in July 2015

§  Visible gold observed in multiple locations with no significant sulphide material present

§  Rock samples returned very high grade gold

§  Detailed sampling and trenching program initiated in late August

§  Highly anomalous gold values over 1.4 km area

§  Target has not been drill tested

Bayan Khundii is yet another high-quality discovery by the Erdene technical team and is testimony to the vast untapped mineral potential that exists in southwest Mongolia

Bayan Khundii Gold Discovery

17

Bayan Khundii Gold Discovery Two Separate Mineralized Zones Over 1.4 km

Altan Arrow; Multiple, high-grade Au-Ag veins (10-57 g/t Au) over 1km strike

Bayan Khundii Discovery

1 km

Khundii Licence Potential Connection with Altan Arrow

Main Zone

NE Zone

500 m

1.3 g/t Au 4.1 g/t Au

See Next Slide For Inset Map

Bayan Khundii Discovery Two Separate Mineralized Zones Over 1.4 km

18

4,380 g/t Au & 570 g/t Ag

1,790 g/t Au & 230 g/t Ag

110 g/t Au

67 g/t Au

46 g/t Au

74 g/t Au & 120 g/t Ag

100m

BKT-

04

BK

T-09

BK

T-11

BKT-07

BKT-08

59 g/t Au

Rock Sample

Trench Sample

10.2 g/t Au

9.8 g/t Au

6.3 g/t Au

4.3 g/t Au

30m @ 2.7 g/t Au (4m @ 7.4 g/t Au & 2m @ 11.2 g/t Au)

10m @ 2.9 g/t Au (2m @ 10 g/t Au)

14m @ 2.3 g/t Au (2m @ 9.4 g/t Au)

26m @ 2.5 g/t Au (1m @ 55.6 g/t Au)

Bayan Khundii Gold Discovery Main Zone: parallel zones, 10 - 30 m wide, avg. 2.3 - 2.9 g/t Au

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Moving Forward – Q4 2015-Q4 2016

§ Altan Nar

§  Drill results for Discovery Zone and regional targets in Q4; follow up drilling, resource expansion

§  Independent Strategic Options Analyses underway to evaluate mining, processing, and marketing option

§  Additional metallurgical and process test work considering blending/scheduling

§  Mining licence application work to be initiated in 1Q-2016

§  Bayan Khundii

§  Drilling, detailed mapping, grid based rock chip sampling & geophysical surveys (Q4)

§  Metallurgical Testing

§  Resource Drilling

What Sets Altan Nar/Bayan Khundii Apart?

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Early-In Opportunity ‒  A new gold district discovery ‒  Early in exploration to development value curve ‒  Low point in commodity cycle = low valuations

Ownership ‒  100% interest in Project

Growth Potential ‒  Limited drilling to date ‒  All targets open for expansion over large areas

High-Grade & Near Surface ‒  Evidence of bonanza grades at surface that

have potential to improve pit economics

Excellent Metallurgy ‒  88% gold recovery using conventional

processing Altan Nar ‒  Coarse gold, low sulfide association at Bayan

Khundii

Location & Infrastructure ‒  Region receiving rapid rail & road upgrades ‒  Next door to world’s second largest gold

consumption region and largest gold producer

Value  /  ~

Market  C

ap  

Explora2on   Discovery   Const-­‐  ruc2on  

Feas-­‐  ibility  

Altan Nar/BK

Prod-­‐  uc2on  

Development Stage of a Successful Mining Company

Corporate Snapshot

Capital Structure � Management �

Board Of Directors �

Peter Akerley, President & CEO, Director

Ken MacDonald, VP Bus. Development, CFO

Mike MacDonald, Director of Exploration

Mike Gillis, Director of Operations

Dawson Brisco, Manager Corporate Dvpmt

Share Distribution �

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Trading Info TSX: ERD

Share Price $0.14

52 Wk Range $0.09-0.17

Shares Outstanding 97 M

Shares Fully Diluted 114 M

Market Cap $14M

13%  

12%  

7%  

5%  2%  

6%  

55%  

Teck Resources

ERD Mgmt & Directors

Lion Selection Group

Khan Investments

Glencore

Other Institutional

Retail

Chris Cowan (Chairman), Mining executive/engineer with 40+ years in senior industry positions

William Burton, Mining industry executive/geologist with 30+ years in the industry

John Byrne, Finance industry professional with over 30 years experience in the Canadian banking industry

Layton Croft, Experienced Mongolian mining industry professional (Oyu Tolgoi LLC & Peabody)

Phillip Webster, President of Imperial Windsor Group

Peter C. Akerley President & CEO, Director

Tel 902-423-6419 Email info@erdene.com Website www.erdene.com Twitter @ErdeneRes

Erdene Resource Development Corp.

October 2015 TSX: ERD Developing a New

Gold District in Southwest Mongolia