Advanced Gold-Copper-Silver Exploration

Borosi Concessions, Mining Triangle, Nicaragua

TSX.V: CXB July 2014

Partnered for Discovery

Certain statements in this document constitute “forwardlooking statements” which may not be based on historicalfact. Such forward looking statements involve known andunknown risk, uncertainties and other factors which maycause the actual results, performance or achievements of theCompany, or industry results to be materially different fromany future results, performance, or achievements expressedor implied by such forward looking statements. Such factorsinclude, among others, the following: actual results ofexploration and development activities; the costs and timingof the development of new deposits; future prices of preciousand base metals; accidents; risks inherent in mineralexploration; risks associated with development, constructionand mining operations; restrictions on foreign ownership; theCompany’s history of operating losses and uncertainty offuture profitability; uncertainty of access to additional capital;and environmental liability claims and insurance. Thispresentation is not an offer to purchase securities and doesnot constitute an offering document under Securitieslegislation.

Mr. Gregory Smith, P.Geo, the President and CEO of theCompany, is the Qualified Person as defined by NI 43-101, andhas prepared and approved the technical data andinformation in this presentation

INVESTMENT HIGHLIGHTSCALIBRE INVESTMENT HIGHLIGHTS CALIBREMINING.COM 3

• NICARAGUA: stable government, mining favourable political environment, long history of foreign investment in the mining sector

• MINING TRIANGLE: Calibre’s 785 km2 Borosi gold-silver-copper project is located in one of the most prolific mining districts in Central America with over 7.9M ozs of past gold production yet the district remains largely underexplored

• PARTNERSHIPS: Calibre has formed two partnerships with two mid-tier gold producers B2Gold and IAMGOLD and also a third partnership with Alder Resources whereby Calibre’s partners are required to spend up to $12 million on exploration and development over the next 3 years

• CALIBRE GOLD RESOURCES: Calibre’s 100% owned NI 43-101 Inferred Resources total 1,057,750 ozs gold and 8,430,070 ozs silver in three deposits

• CALIBRE 100% OWNED MONTES DE ORO GOLD PROJECT: trenching has delineated significant widths of gold mineralization including 52.3 metres grading 7.1 g/t gold and 27.5 metres grading 4.93 g/t gold within a 400 metre by 650 metre gold-silver-copper-zinc soil anomaly

• 2014 EXPLORATION/DEVELOPMENT PLANS: B2Gold: trenching/auger sampling at the Minnesota gold project, IAMGOLD: resource delineation drill programs at Riscos de Oro and Guapinol, Alder: drill testing Rosita Cu-Au-Ag surface enriched and oxide targets

EXPERIENCED TEAM PARTNERS

CALIBRE MINING CORP.Greg Smith, P.Geo President & CEO, Director» 25+ years exploration experience with both junior & senior operations;» Involved in successfully outlining 10+ million ounces of gold discoveries.

Paulo Santos, CA Chief Financial Officer» 10+ years experience with public accounting, auditing, and regulatory compliance

Edward Farrauto, CGA Director» 20+ years experience as CFO and director of public companies;» Founder and director of several public companies

George Salamis Director» 20+ years exploration, development and operations experience;» President & CEO of Edgewater Exploration Ltd.

Hon. John Reynolds, P.C. Director» 35+ years experience in politics, former Member of Parliament, and a member of the Queen’s Privy Council for Canada;» Strategic Senior Advisor at McMillan LLP.

FEATHERSTONE CAPITALDouglas B. Forster, M.Sc., P.Geo Executive Chairman of the Calibre Board » President & CEO of Featherstone Capital Inc.» 30+ years of resource project development, M&A, equity finance and public company management;» Founder and director of numerous public companies

Blayne Johnson Lead Director of Calibre Board» 25 years of capital markets experience;» Former VP of First Marathon Securities» Chairman of Featherstone Capital Inc.

B2Gold Corp.Vancouver based gold producer and Nicaragua’s largest goldproducer led by Clive Johnson and Tom Garagan, with twogold mines in Nicaragua and one gold mine in thePhilippines. B2Gold has a strong portfolio of developmentand exploration assets in Nicaragua, Colombia, Uruguay andnew mine development in Namibia.

IAMGOLD Corp.Mid tier gold producer with six operating gold mines onthree continents and one of the world’s three niobiummines. A solid base of strategic assets in Canada, SouthAmerica and Africa is complemented by development andexploration projects, with a strong financial position andextensive management and operational expertise.

Alder ResourcesToronto-based junior exploration company with a focus on exploration for base and precious metals in the Americas.

SHARE STRUCTUREIssued and Outstanding 197,910,918Options 13,450,000Fully Diluted 201,360,918Fully Diluted Cash Position $3,146,500

Working Capital $1,200,000

Significant ShareholdersB2Gold Corp. 15.2%Management 9.0%

CALIBRE TEAM CALIBREMINING.COM 4

» Democratic Republic with President Ortega elected to a new 5 year term in Nov. 2011

» Gold is Nicaragua’s No. 2 export

» Gold has helped Nicaragua’s economy grow by 4% annually in the past year, the highest rate in Central America

» Annual gold production has more than doubled in the past 3 years

» Supportive mining laws, and favourable tax regime

» 25 year exploration and 50 year exploitation permits

» Economist Intelligence Unit ranks Nicaragua as one of the safest countries in Central America

NICARAGUA: STABLE & SAFEUNDER EXPLORED MINING ENVIRONMENT

WORKING IN NICARAGUA CALIBREMINING.COM 5

111111xplo

1) IAMGOLD Optiona) Riscos de OroEpithermal Gold-Silver ResourceNI43-101 Inferred Resource (222,300 oz Au & 4.14M oz Ag)

b) GuapinolGold-Silver - Historical Drilling

c) Blag and Others

2) B2Gold Joint Ventured) PrimaveraGold-Copper Porphyry Discovery

e) MinnesotaPorphyry Gold Discovery61.9m @ 1.76 g/t Au in trench

3) Calibre 100% Ownedf) Cerro AeropuertoGold-Silver SkarnNI-101 Inferred Resource (6.05M t –707,750 oz Au & 3.14M oz Ag)

g) Montes de Oro Gold Discovery52.3m @ 7.07 g/t Au in trench

h) La Luz: Past Producer - Gold

4) Alder Resources Optioni) Santa RitaGold-Copper-Silver Skarn NI43-101 Inferred Resource (7.95M t 108M lb Cu, 118,000 oz Au & 2.35M oz Ag)

j) Bambana

BOROSI GOLD, SILVER AND COPPER CONCESSIONS – “MINING TRIANGLE”7.9 million ozs past gold production – District Underexplored

BOROSI CONCESSION AREA CALIBREMINING.COM 6

BlagRiscosDe Oro

Primavera

La LuzCerro Aeropuerto

Montes De Oro

Bambana La Luna

Minnesota

Santa Rita

Guapinol

SIUNA

BONANZA

ROSITA

MANAGUA

BOROSI CONCESSIONS

EASTERN BOROSI GOLD DISTRICT – Optioned to IAMGOLD (176 km2)

EASTERN BOROSI GOLD PROJECT CALIBREMINING.COM 7

» IAMGOLD has the right to earn 51% of the Eastern Borosi Project by spending $5 million and cash payments of $450,000 over three years

» IAMGOLD can earn a further 19% for a total of 70% by spending an additional $5 million and further payments of $450,000 over a second three year period

» Low Sulphidation Epithermal Gold-Silver District

» Multiple trends in excess of 10 kilometres in length – each with a series of sub-parallel gold-silver bearing structures

EASTERN BOROSI GOLD DISTRICT – Optioned to IAMGOLD (176 km2)

EASTERN BOROSI GOLD PROJECT CALIBREMINING.COM 8

» Comparable in size to the nearby Bonanza Camp with similar geology, mineralization, and structure

» Bonanza Camp has past production and current reserves of +4.0 million oz Au)

» Low Sulphidation Epithermal Gold-Silver Vein District

» Gold – Silver System extends over 7 km from the El Paraiso and Murcielago targets Northeast towards Riscos de Oro

» Completed 9,427m of resource delineation drilling at Riscos in 37 holes with epithermal gold-silver intercepts including 7.69 g/t Au, 211.80 g/t Ag over 10.6m

» IAMGOLD’s $1.5M exploration drill program to be completed in 2014 started in July 2014

RISCOS DE ORO DEPOSIT - DISTRICT POTENTIALOptioned to IAMGOLD

NI 43-101 GOLD/SILVER RESOURCE - RISCOS DE OROOptioned to IAMGOLD

1. CIM definition standards were followed for the resource estimate.2. The 2012 resource models used Inverse Distance grade estimation within a three-dimensional block model with mineralized zones defined by wireframed solids. 3. A base cutoff grade of 0.6 g/t AuEq was used for reporting resources with capping of silver grades at 591 g/t.4. A density of 2.65 g/cm3 was applied.5. Numbers may not add exactly due to rounding.6. Gold Equivalent (AuEq) calculated using $1264 /oz Au gold and $19.78/oz Ag silver and metallurgical recoveries and net smelter returns are assumed to be 100%.7. Mineral Resources that are not mineral reserves do not have economic viability.8. The quantity and grade of reported inferred resources in this estimation are uncertain in nature and there has been insufficient exploration to define these inferred resources as an indicated or measured mineral resource and it is uncertain if further exploration will result in upgrading them to an indicated or measured mineral resource category.

Calibre Mining Corp. Inferred Resource (using a 0.6 g/t AuEq cutoff grade)

Tonnes and Grade Total Ounces

Zone Tonnes Grade Grade Grade Contained Contained Contained

(t)(Au g/t)

(Aq g/t)

(AuEq g/t)

Au (ounces)

Ag (ounces)

(ounces AuEq)

Upper 1,539,000 2.45 64.42 3.46 121,200 3,188,000

Lower 620,000 5.07 47.87 5.82 101,000 954,000

Total 2,159,000 3.2 59.67 4.14 222,300 4,142,000 287,100

RISCOS DE ORO GOLD PROJECT CALIBREMINING.COM 9

>8km loingGold in Soil

Anomaly

Riscos de Oro Deposit(800 metre section)

Cross SectionMultiple

Structures

» Consists of a series of anomalous zones, past producing pits, shallow shafts and existing small scale mining areas over eight kilometres

» Previous exploration at Guapinol has included; mapping, geophysics, geochemistry, trenching and drilling which has identified excellent near surface targets 3.0 km long and averaging 500 metres wide.

Guapinol TREND OptIoned to IAMGOLD

» Grab samples from Guapinol consist of 13.1 g/t gold, 18.8 g/t gold while at the California target approximately 3km along strike

GUAPINOL GOLD PROJECT CALIBREMINING.COM 10

» La Sorpresa located 8.5 kilometres along strike returned grab samples of 14.2 g/t gold, 17.01 g/t gold and 74.0 g/t silver.

Guapinol – California(well Defined Drill Targets)

» Located near Riscos de Oro and La Luna gold-silver deposits

» grab samples in the trend have returned high grade silver results including; 703g/t, 441g/t 1200g/t, 1387g/t, and 2457g/t Ag

samples have returned 3.2g/t gold, 21.9 g/t gold and 9.5g/t gold

EASTERN BOROSI GOLD PROJECT CALIBREMINING.COM 11

3400m Diamond Drill Program – Commenced July 2014

EASTERN BOROSI GOLD DISTRICT – Optioned to IAMGOLD

EASTERN BOROSI GOLD PROJECT CALIBREMINING.COM 12

EASTERN BOROSI GOLD PROJECT – Phase I Drill Targets

Planned Drill Program

B2GOLD JOINT VENTURE CALIBREMINING.COM 13

B2GOLD JOINT VENTURE and OPTION (322.3 km2)» Joint Venture with B2Gold: B2Gold have earned a 51% interest in 322 sq km of concessions, by spending $8M. B2Gold and Calibre Mining have entered into an agreement granting B2Gold an option to acquire a further 19% interest by spending an additional $6.0 million in project expenditures over 3 years.

Primavera

Minnesota

SantoThomas

C

MINNESOTA GOLD PROJECT

GOLD GEOCHEMISTRY

MINNESOTA GOLD PROJECT CALIBREMINING.COM 14

B2GOLD/CALIBRE MINING JOINT VENTURE» located 20 km northwest of the Primavera gold-copper project

ID From (m) To (m) Interval (m) Au (g/t)

MINTR14-001 0.00 14.55 14.55* 0.87

including 1.50 10.00 8.50 1.22

MINTR14-002 0.00 15.00 15.00* 0.41

MINTR14-003 0.00 6.00 6.00 0.21

MINTR14-005 2.00 3.50 1.50 0.77

MINTR14-006 0.00 14.80 14.80* 1.85

MNTR13-001 0.00 7.50 7.50 3.93

MNTR13-002 0.00 9.20 9.20 4.17

BRTR11-044 0.00 6.40 6.40 5.56

BRTR11-047 0.00 8.00 8.00 6.35

BRTR11-053 0.00 4.65 4.65 1.51

BRTR11-054 0.00 6.00 6.00 2.12

BRTR11-057 0.00 12.80 12.80 1.27

» sampling and mapping has identified multiple targets consisting of multi-phase intrusive with numerous vein sets and wide spread alteration over 1.75kms by 1.25kms

» Recent trench result 61.9m @ 1.76 g/t Au

MINNESOTA GOLD PROJECTMINNESOTA GOLD PROJECT CALIBREMINING.COM 15

NEW GOLD DISCOVERY Trench MNTR14 – 06,07,08 and 09 with 61m grading 1.76 g/t Gold

B2GOLD/CALIBRE MINING JOINT VENTURE

» sampling and mapping has identified multiple targets consisting of multi-phase intrusive with numerous vein sets and wide spread alteration over 1.75kms by 1.25kms

MINNESOTA GOLD PROJECTGEOLOGY AND GEOCHEMISTRY

MINNESOTA GOLD PROJECT CALIBREMINING.COM 16

» gold mineralization

exposed in intensely

sericitized granodiorite

with strong hematite

staining and variable

silicification

» on-going exploration

consisting of extension to

existing trench and 100

metre step out trenches to

test zone along strike

» Road accessible with national power grid located 1.2 km from the project, 8km from town of Rosita

» Updated Airborne geophysical survey completed over a large 5km by 5km interpreted intrusive/volcanic complex. Additional ground surveys completed

» 32 drill holes completed totaling 13,414m

» The higher grade Gold/copper porphyry mineralization has been intersected in drill holes over a 300m by 300m area and to a depth of 300m with mineralization comprised of quartz-magnetite-chalcopyrite-bornite veins and vein stockwork within broad zones of potassically and propylitically-altered intermediate volcanic and intrusive rocks

PRIMAVERA GOLD/COPPER PROJECT DRILL HOLES PR11-002, PR12-008, PR12-011

247.35m @0.43 g/t Au,

0.21% Cu

PR-12-008

261.70m @0.78 g/t Au,

0.30% Cu

PR-11-002159.53m @

0.46 g/t Au, 0.20% Cu

PR-12-011

PRIMAVERA GOLD/COPPER PROJECT CALIBREMINING.COM 17

COPPER IN SOIL GEOCHEMISTRY GOLD IN SOIL GEOCHEMISTRY AIRBORNE RADIOMETRICS

OPEN TODEPTH

PRIMAVERA GOLD/COPPER PROJECTB2GOLD\CALIBRE JOINT VENTURE

PRIMAVERA DRILL RESULTS HIGHLIGHTS*Drill Hole From To Length Gold Copper AuEq**

(m) (m) (m) (g/t) (ppm) (g/t)

PR-11-001 0.00 276.80 276.80 0.50 2146 0.84

PR-11-002 1.50 263.20 261.70 0.78 2966 1.25

PR -11-003 4.00 327.20 323.20 0.41 1843 0.70

includes 4.00 150.50 146.50 0.65 2742 1.08

PR-12-005 207.50 372.50 165.00 0.31 1713 0.58

PR-12-006 12.00 102.00 90.00 0.21 1315 0.42

PR-12-007 7.70 255.00 247.30 0.22 1097 0.39

PR-12-008 107.65 280.00 172.35 0.48 2401 0.86

PR-12-010 79.00 94.40 15.40 0.59 4325 1.27

PR-12-011 6.95 166.48 159.53 0.46 2008 0.78

PR-12-013 24.00 46.50 22.50 0.44 2090 0.77

PR-12-016 0.00 201.35 201.35 0.77 3567 1.34

includes 27.75 85.60 57.85 1.08 4915 1.86

PR-12-023 0.00 455.80 455.80 0.20 1138 0.39

PR-12-024 655.60 656.70 1.10 18.28 252 18.33

and 673.00 674.50 1.50 11.95 2373 12.33

PRIMAVERA GOLD/COPPER PROJECT RESULTS

*Complete drill results available on Calibre Mining’s website**AuEq (g/t) Gold Equivalent calculated using 1,300/oz gold and $3.00/lb copper

Metallurgical recoveries and net smelter returns are assumed to be 100%.Note: Holes 1-3 Jan. 20, 2012, Holes 4-10 April 16, 2012, holes 11-13 June 28, 2012 holes 14-32 Jan 2013

PRIMAVERA GOLD/COPPER PROJECT CALIBREMINING.COM 18

PICTURED DRILL INTERCEPT ASSAYED

» 5.52m @ 0.59g/t Au and 0.29% Cu (Section 196.93m-202.45m of Hole PR12-008)

Trench ID Interval (m) Gold (g/t) Copper (ppm)

PRTR11-005 51.3 1.53 680

PRTR11-010 107.0 0.78 980

PRTR11-011 179.4 0.63 997

PRTR11-014 51.7 0.42 1286

» Over 800m by 300m gold/copper soil geochemistry anomaly (open) with Additional gold/copper soil geochem anomalies have been outlined in the 25km2 Primavera porphyry target area.

» Trenches returned long intervals of continuous gold/copper mineralization

SIUNA PROJECT 100% CALIBRE CALIBREMINING.COM 19

SIUNA DISTRICT – 100% Calibre (253km2)» Calibre’s 100% owned Siuna District is located in the western portion of the Borosi Concessions. The 253 km2 land package includes the past producing La Luz Mine (2.5M oz Au) and adjacent Cerro Potosi, the Cerro Aeropuerto Inferred Resource (750k oz Au), and the Montes de Oro high grade gold target.

La LuzCerro Aeropuerto

Montes De Oro

SIUNA

CerroLa Virgen

» The Cerro Aeropuerto gold-silver high grade inferred resource (6.05Mt @ 3.64 g/t gold & 16.16 g/t silver for 707,000 ounces gold & 3.14 Moz silver is located 500-1000 m along strike from the past producing La Luz Mine. (~2.5M ounces gold)

SIUNA DISTRICT (100% CALIBRE OWNED)

SIUNA DISTRICT 100% OWNED CALIBREMINING.COM 20

Historic La Luz MineOpen Pit

Cerro

Aeropuerto

500m

La Luz MineOpen PitAnd Underground

Cerro Potosi

CERRO AEROPUERTO

35.0m @0.85 g/t Au

HSM - 106.0m @6.36 g/t Au

HSM - 13HSM - 14

HSM - 09

3.0m @2.25 g/t Au30.2m @

2.83 g/t Au

9.0m @0.51 g/t Au

26.0m @0.30 g/t Au

4.5m @0.37 g/t Au

CERRO POTOSI

CA-07-01 CA-08-08CA-08-04

3.0m @19.72 g/t Au

24.0m @5.75 g/t Au

91.5m @2.75 g/t Au22.0m @

1.05 g/t Au

11.2m @0.83 g/t Au

3.1m @1.81 g/t Au

58.1m @0.44 g/t Au

HSM - 15

» The Cerro Aeropuerto gold-silver high grade inferred resource (6.05Mt @ 3.64 g/t gold & 16.16 g/t silver for 707,000 ounces gold & 3.14 Moz

» New gold-copper porphyry and skarn-style mineralization discovery at La Virgen and Montes de Oro targets, north of the Cerro Aeropuerto gold-silver deposit.

» La Virgen target hosts a broad 500 m x 1000 m gold-copper stream sediment and soil anomaly

» Several placer gold workings

» Montes de Oro located 4km north of La Virgen has outlined a 400 m x 650 m gold-copper-lead-zinc anomaly.

» Additional ground exploration work on going

SIUNA DISTRICT100% CALIBRE OWNED

HIGHLIGHT TRENCH RESULTS 2013 - MONTES DE ORO

TRENCH/PIT RESULTS 2013 - La VIRGEN

Trench ID Interval (m) Gold (g/t) Copper (%)

MTR13-009 52.3 7.07 0.06

including 26.9 12.54 0.10

MTR13-017 27.5 4.93 0.05

MTR13-026 33.5 2.10 0.04

Trench ID Interval (m) Gold (g/t) Copper (%)

VTR 12-001 45.0 0.40 0.12

including 9.0 1.39 0.19

VTR 12-021 10.2 0.70 0.11

PIT 11 2.0 27.18

SIUNA DISTRICT 100% OWNED CALIBREMINING.COM 21

» New gold-copper-silver-zinc mineralization discovery at the Montes de Oro target, north of the Cerro Aeropuerto gold-silver deposit.

» High grade mineralization in trench MTR13-009 with 52.3 m grading 7.1g/t gold

» 400 m x 650 m gold-copper-lead-zinc anomaly open along the northeast.

» Trenching has only partially tested a strong coincident gold-silver-copper-lead-zinc anomaly.

» Recent exploration has significantly extended zonemore than 250 metres to the north

Trench Results

Trench From To length Au Cu Zn

ID (m) (m) (m) (g/t) (%) (%)

MTR13-009 0.0 52.3 52.3 7.07 0.06 1.23

incl 10.7 52.3 41.6 8.46 0.07 1.47

incl 10.7 36.9 26.2 12.54 0.1 2.32

MTR13-017 0.0 27.5 27.5 4.93 0.05 0.38

incl 14.0 23.0 9.0 10.15 0.06 0.29

MTR13-018 20.0 29.0 9.0 3.11 0.02 0.41

MTR13-019 4.8 21.0 16.2 4.68 0.05 0.22

MTR13-020 29.5 38.0 8.5 1.66 0.03 0.23

MTR13-022 0.0 6.0 6.0 4.73 0.03 0.07

MTR13-026 0.0 33.5 33.5 2.10 0.04 0.05

MONTES DE ORO GOLD PROJECT CALIBREMINING.COM 22

Montes de Oro (SIUNA DISTRICT – 100% Calibre)Gold – Silver – Copper - Zinc

MONTES DE ORO (100% Calibre) - SOIL GEOCHEM MAP / TRENCH HIGHLIGHTSMONTES DE ORO GOLD PROJECT CALIBREMINING.COM 23

ROSITA OPTION

FORMER SANTA RITA

COPPER-GOLD MINE

(33.56 km2)Optioned to Alder

Resources

» Under option agreement Alder Resources to spend C$4.0 million over the next four years to earn a 65% stake in Calibre’s Rosita D Concession

» Rosita D concession: 3,356 hectares - 5% of Calibre’s concessions in the Mining Triangle

ROSITA PROJECT CALIBREMINING.COM 24

BambanaSanta Rita

ROSITA OPTION - FORMER SANTA RITA COPPER-GOLD MINEOptioned to Alder Resources

» Historic open pit Santa Rita copper-gold mine: total historic production from skarn mineralization estimated at 305 M lbs of Cu, 177,737 ozs of Au, and 2,629,720 ozs of Ag from 5,924,572 tons of ore (Arengi, 2002)

» Phase One exploration completed, including 8,000 metres of diamond drilling. Results to date include: 8.0m grading 29.54 g/t Au and 8.0m grading 6.9 g/t Au (Alder news Release Sept 5, 2012)

ROSITA PROJECT CALIBREMINING.COM 25

SANTA RITA

R13

» On May 9, 2012 Alder Resources Announced a NI 43-101 Inferred Resource estimate at Santa Rita of 7.95 Mt averaging 0.62% Cu, 0.46 g/t Au, and 9.2g/t Ag. Containing 108 M lbs copper, 118,500 oz gold and 2.35 M oz of silver

» High grade copper/gold/silver zone identified at Bambana with 5.21% Cu, 4.40 g/t Au and 144g/t Ag over 12.1 metreswith additional work planned

NI 43-101 GOLD/SILVER RESOURCES CERRO AEROPUERTO, LA LUNA & RISCOS 100% CALIBRE OWNED

Calibre Mining Corp. Inferred Resource (using a 0.6 g/t AuEq cutoff grade)

1. *For Cerro Aeropuerto & La Luna Gold Equivalent (Au Eq) calculated using gold price of US$1,058/oz and silver price of US$16.57 /oz and for Riscos a gold price of US$1264/oz and silver price of US$19.78/oz. Assumes metallurgical recoveries and net smelter returns are to be 100%2. Mineral resources that are not mineral reserves do not have economic viability. 3. A base cutoff grade of 0.6 g/t AuEq was used. Riscos estimate used a capping of silver grades at 591 g/t.

a density of 2.65 g/cm3 was applied. Numbers may not add exactly due to rounding.4. * Subject to Option Agreement with IAMGOLD

NI 43-101 COPPER/GOLD/SILVER RESOURCES AT ROSITAOPTIONED TO ALDER RESOURCESCalibre Mining Corp. and Alder Resources Inferred Resource (using a 0.15% Copper cutoff grade)

1. Base case is reported at a 0.15% copper equivalent cut-off grade which incorporates consideration of mining and processing cost, recoveries, commodity prices and selling cost.2. Estimate assumes a long term copper price of US$2.90/lb, a gold price of US$1,200/oz and a silver price of US$24/oz.3. Rounding as required by NI 43-101 reporting guidelines may result in apparent summation differences.4. Tonnage and grade measurements are in metric units. Contained gold and silver ounces are reported as troy ounces, contained copper pounds as imperial pounds.5. Mineral resources that are not mineral reserves do not have demonstrated economic viability. The estimate of mineral resources may be materially affected by environmental, permitting, legal, title, taxation, sociopolitical, marketing, or other relevant issues.6. The quantity and grade of reported inferred mineral resources in this estimation are uncertain in nature and there has been insufficient exploration to define these inferred mineral resources as indicated or measured mineral resources and it is uncertain if further exploration will result in upgrading them to indicated or measured mineral resources.

CALIBRE MINING NI43-101 INFERRED RESOURCES CALIBREMINING.COM 26

Tonnes and Grade Total Ounces

Deposit Tonnes Gold Silver Au Eq1 Gold Silver Au Eq1

(g/t) (g/t) (g/t) (oz) (oz) (oz)

Cerro Aeropuerto 6,052,000 3.64 16.16 3.89 707,750 3,144,500 757,000

La Luna * 2,539,000 1.56 14.01 1.78 127,700 1,143,570 146,000

Riscos de Oro * 2,159,000 3.20 59.67 4.14 222,300 4,142,000 287,000

1,057,750 8,430,070 1,190,000

Tonnes and Grade Total Resources

Deposit Tonnes Gold Silver Cu Gold Silver Cu

(g/t) (g/t) (%) (oz) (oz) (lbs)

Rosita Stock Piles 7,950,000 0.46 9.2 0.62 118,000 2.35M 108M

Summary» Nicaragua provides a favourable, stable, environment for mining.

» Calibre’s 100% owned gold-silver deposits host inferred resources of 1,057,750 oz Au and 8,430,070 oz Ag (1,190,000 oz AuEq)

» New gold-skarn discovery at Calibre’s 100% owned Montes de Oro gold project (52.3 m grading 7.1g/t Au MTR13-009)

» Calibre Mining has established partnerships with two mid-tier gold producers: IAMGOLD and B2Gold and an option with Alder Resources. Calibre, B2Gold, IAMGOLD, and Alder Resources control over 785 km2 of underexplored mineral concessions in a region that has already produced more than 7.9M oz’s of gold.

» Calibre’s partners to spend up to $12M on exploration over the next 3 years

EXPLORATION TIME LINE & NEWS FLOW

INFORMATIONRyan King

calibre@calibremining.com

(604) 628.1012

Calibre Mining Corp.

1620 – 1066 West Hastings St.

Vancouver, BC V6E 3X1

TSX.V: CXB

calibremining.com

Q2/14 Q3/14 Q4/14 Q1/15

Exploration

for Porphyry

Gold/Copper

Systems

Advance

Montes de Oro

Target

Delineation

Drilling at

Minnesota

Data Review

RESULTS

Calibre / B2Gold Joint Venture

100% Owned Calibre concessions

100% Owned Calibre

Calibre / B2Gold Joint Venture

IAMGOLD Option Project

Calibre / B2Gold Joint Venture

100% Owned Calibre concessions

Calibre / B2Gold Joint Venture

100% Owned Calibre concessions

Calibre / B2Gold Joint Venture

IAMGOLD Option Project

Eastern Borosi

Drill Targets IAMGOLD Option Project

Partnered for

Discovery

EXPLORATION TIME LINE & NEWS Flow

Calibre Mining Corp.

1620 – 1066 West

Hastings St.

Vancouver, BC V6E 3X1

TSX.V: CXB

calibremining.com