Montero Mining & Exploration presents at 2011 Electric Metals Conference hosted by Byron Capital Markets

1. Focus on exploration for
Rare Earth Elements
and associated minerals

2. Disclaimer
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3. Montero - Company Background
• listed on the TSX-V (MON) February 2011
• focused on rare earth elements
• ex Placer Dome team
• Share Price C$0.77, Market Capitalization C$32.6M
Shares
as at April 11, 2011
(million)
Shares issued 42.3
Stock options 3.7
Warrants 7.1
Total – fully diluted 53.1
Director and officers 15.49%
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4. Wigu Hill Project – Overview
• Ownership
• 60% ownership - option to 100% with Tanzanian JV partner
• World-class deposit
• large carbonatite complex (6.4km x 3.2km) intruded by
sheeted high grade bastnasite bearing dykes
• first identified in 1957, historic grades up to 16.5% TREO
• high grade identified by Montero 27.25% TREO
• Development potential
• 170km south west of major port of Dar es Salaam
• 12km to Tazara rail linking Zambia and Dar es Salaam
• Good infrastructure, water, transport and mining support
• High grade, large tonnage open pit potential
• Tanzania – mining friendly country
• Good mining law with major mining companies operating
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5. Wigu Hill Project Location
Wigu Hill
licences
–142km²
Dar es
Salaam
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6. Wigu Hill – Drill Targets
Tembo drill Twiga drill
target target
N
Previous mapping and sampling programs defined 10 drill target areas
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7. Wigu Hill – Location of Drill Targets
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8. Rare Earth bearing Carbonatite Dykes
The carbonatite dykes consist of finely to coarse crystalline dolomite with minor amounts
of goethite and intergrowth of Bastnasite bearing Burbankite crystals.
Hexagonal burbankite hosts abundant bastnasite and related rare earth minerals, plus
barite strontianite, quartz and dolomite.
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9. Wigu Hill – Twiga Geology
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10. Wigu Hill – Twiga Trench CT 7a

11. Wigu Hill – Twiga Trench CT 8a

12. Wigu Hill – Twiga Trench Assay Results
NW-SE Dyke Set
T r e n c h Interval Dip True
Width TREO% La2O3 Ce2O3 Pr2O3 Nd2O3 Sm2O3
Name (metres) (degrees) (metres) % % % % %
CT7a 6.05 75 5.84 13.31 6.35 5.37 0.47 1.01 0.06
CT8a 26.20 80 25.8 4.81 2.26 1.89 0.18 0.43 0.03
Including 9.5 80 9.35 7.02% 3.29 2.79 0.26 0.62 0.03
CT9b 19.15 75 18.50 8.03 3.73 3.32 0.28 0.64 0.04
E-W Dyke Set
Trench
Name Interval Dip True
Width TREO% La2O3 Ce2O3 Pr2O3 Nd2O3 Sm2O3
(metres) (degrees) (metres) % % % % %
CC1 11 47 8.0 11.36 5.42 4.59 0.39 0.88 0.05
Including 5.0m 3.65 18.64% 9.02 7.43 0.64 1.42 0.08
CC2 14 47 10.23 13.28 6.33 5.38 0.46 1.02 0.06
Including 5.0m 3.65 18.10% 8.67 7.28 0.62 1.39 0.09
Including 1.0m 0.73 27.25% 13.1 11 0.94 2.02 0.123
CC5 17.7 35 10.15 12.44 6.03 4.83 0.44 1.06 0.06
Including 7.6m 4.35 17.33% 8.36 6.81 0.61 1.45 0.08

13. Wigu Hill – Twiga Drill Section
Twiga Target Drilling: Geological section showing attitude of the
carbonatite dykes and drilling at an angle of 50 degrees.
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14. Wigu Hill – BH TW0001 Bastnasite-Rich Intersection
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15. Wigu Hill Mineralogy
• Simple REE mineralogy predominantly:
Bastnasite Synchisite
LREE* (CO3) F Ca LREE* (CO3)2 F
Density: 4.7 to 5.0 Density: 3.9 to 4.0
Hardness: 4 to 4.5 Hardness: 4 to 4.5
• Occur as course crystalline aggregates intergrown with barite,
strontianite and Fe-dolomite; REE, Ba, Sr minerals replace
earlier minerals
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16. Mintek – Montero Metallurgical Research
Mintek commissioned to develop a rare earth element (REE)
extractive process flow sheet
Joint team to design a process flow sheet to maximise recoveries
of REO’s and determine process economics to yield:
 High purity mixed rate earth oxide (MREO) concentrates; and
 Individual pure rare earth oxides (REOs).
Mintek has worked for over 25 years on REE metallurgy, has
patented treatment processes for REE production and
successfully run pilot plant scale operations.

17. High Grade Undeveloped REE Deposit
Grade Size
Deposit
(% RE2O3) (tonnes RE2O3)
Mount Weld 11.20% 1,700,000
Mountain Pass 8.90% 1,800,000
Wigu Hill 7.44%* To be determined
Bayan Obo 6.00% 48,000,000
Mrima Hill 5.00% 300,000
Nolan’s Bore 4.00% 400,000
* Average of regional grab samples at Wigu Hill compared to other deposits
Source of deposit data: SB Castor & JB Hedrick
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18. Thank you
Montero Mining & Exploration Ltd.
Registered and Records Office:
1900-1040 West Georgia Street
Vancouver, B.C. V6E 4H3
www.monteromining .com
Dr Tony Harwood
tharwood@monteromining.com
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