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Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil<br />

Technical <strong>Report</strong><br />

Prepared by Coffey Mining Pty Ltd on behalf of:<br />

Amazon Mining Holding <strong>Plc</strong><br />

Effective Date: 1 March 2010<br />

Qualified Person:<br />

Bernardo Viana,BSc (Geol), MAIG<br />

Beau Nicholls BSc (Geol), MAIG


DOCUMENT INFORMATION<br />

Author(s): Beau Nicholls Exploration Geologist<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908<br />

Technical <strong>Report</strong> – 1 March 2010<br />

Bernardo Viana <strong>Resource</strong> Geologist<br />

Porfírio Cabaleiro<br />

Rodriguez<br />

Date: 1 March 2010<br />

Project Number: 360908<br />

Version / Status: v.01 /<br />

Mining Engineer<br />

Coffey Mining Pty Ltd<br />

BSc (Geo) MAIG<br />

B Sc (Geol), MAIG<br />

B Sc (Eng), MAIG<br />

Path & File Name: S:\BK-GE\Projetos-GCS\Amazon Mining\360908_Cerrado <strong>Verde</strong> <strong>Potash</strong>_Scoping Study_Nov2009\<strong>Report</strong> Preparation<br />

Print Date: 16 April 2010<br />

Copies: Amazon Mining Holding <strong>Plc</strong> (2)<br />

Document Change Control<br />

Coffey Mining – Brazil (1)<br />

Version Description (section(s) amended) Author(s) Date<br />

Document Review and Sign Off<br />

Primary Author<br />

Bernardo Viana<br />

Supervising Principal<br />

Porfirio Cabaleiro Rodriguez


Table of Contents<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908<br />

Technical <strong>Report</strong> – 1 March 2010<br />

Coffey Mining Pty Ltd<br />

1 Summary .......................................................................................................................................5<br />

2 Introduction ..................................................................................................................................7<br />

2.1 Scope of Work ...................................................................................................................7<br />

2.2 Qualifications and Experience ...........................................................................................7<br />

2.3 Independence ....................................................................................................................8<br />

2.4 Principal Sources of Information .......................................................................................8<br />

2.5 Abbreviations .....................................................................................................................9<br />

3 Reliance on Other Experts ....................................................................................................... 10<br />

4 Property Description and Location ......................................................................................... 11<br />

4.1 Project Location .............................................................................................................. 11<br />

4.2 Tenement Status ............................................................................................................ 12<br />

4.3 Permits ........................................................................................................................... 13<br />

4.4 Royalties and Agreements ............................................................................................. 14<br />

4.5 Environmental Liabilities ................................................................................................. 14<br />

5 Accessibility, Climate, Local <strong>Resource</strong>s, Infrastructure and Physiography ...................... 15<br />

5.1 Project Access ................................................................................................................ 15<br />

5.2 Physiography and Climate ............................................................................................. 15<br />

5.3 Local Infrastructure and Services ................................................................................... 15<br />

6 History ........................................................................................................................................ 16<br />

6.1 Exploration History ......................................................................................................... 16<br />

6.2 <strong>Resource</strong> History ............................................................................................................ 16<br />

6.3 Mining History ................................................................................................................. 16<br />

7 Geological Setting ..................................................................................................................... 17<br />

7.1 Regional Setting ............................................................................................................. 17<br />

7.2 Project Geology .............................................................................................................. 19<br />

8 Deposit Types ............................................................................................................................ 21<br />

9 Mineralization ............................................................................................................................ 22<br />

10 Exploration ................................................................................................................................. 23<br />

11 Drilling ........................................................................................................................................ 25<br />

11.1 Introduction ..................................................................................................................... 25<br />

12 Sampling Method and Approach ............................................................................................. 27<br />

12.1 Reverse Circulation (RC) Sampling ............................................................................... 27<br />

12.2 Logging ........................................................................................................................... 27<br />

12.3 Bulk Density .................................................................................................................... 27


Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908<br />

Technical <strong>Report</strong> – 1 March 2010<br />

Coffey Mining Pty Ltd<br />

13 Sample Preparation, Analyses and Security .......................................................................... 28<br />

13.1 Sample Security ............................................................................................................. 28<br />

13.2 Sample Preparation and Analysis .................................................................................. 28<br />

13.3 Adequacy of Procedures ................................................................................................ 28<br />

14 Data Verification ........................................................................................................................ 29<br />

14.1 Introduction ..................................................................................................................... 29<br />

14.2 Bureau Veritas Standards .............................................................................................. 29<br />

14.3 Bureau Veritas Pulp Duplicates ...................................................................................... 29<br />

14.4 Adequacy of Procedures ................................................................................................ 31<br />

15 Adjacent Properties .................................................................................................................. 32<br />

16 Mineral Processing and Metallurgical Testing ....................................................................... 33<br />

17 Mineral <strong>Resource</strong> and Mineral Reserve Estimates ................................................................ 34<br />

17.1 Introduction ..................................................................................................................... 34<br />

17.2 Geological Modeling ....................................................................................................... 34<br />

17.3 Block Model Development .............................................................................................. 37<br />

17.4 Statistical Analysis .......................................................................................................... 37<br />

17.5 Variography .................................................................................................................... 41<br />

17.5.1 Introduction ............................................................................................................ 41<br />

17.6 Grade Estimation ............................................................................................................ 43<br />

17.7 <strong>Resource</strong> <strong>Report</strong>ing........................................................................................................ 46<br />

17.7.1 Validation ............................................................................................................... 49<br />

18 Other Relevant Data and Information ...................................................................................... 51<br />

19 Interpretation and Conclusions ............................................................................................... 52<br />

20 Recommendations .................................................................................................................... 52<br />

20.1 Budget and Schedule ..................................................................................................... 52<br />

21 References ................................................................................................................................. 53<br />

22 Date and Signature Page .......................................................................................................... 54<br />

23 Certificates of Authors .............................................................................................................. 55<br />

List of Tables<br />

Table 1 – Grade Tonnage <strong>Report</strong> 5<br />

Table 2.5_1 – List of Abbreviations 9<br />

Table 4.2_1 – Cerrado <strong>Verde</strong> <strong>Potash</strong> Project – Tenement Schedule 13<br />

Table 11.1_1 – Summary Drilling Statistics 25<br />

Table 17.3_1 – Block Model Summary 37<br />

Table 17.4_1 – Summary Statistics – 2m Composites 38


Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908<br />

Technical <strong>Report</strong> – 1 March 2010<br />

Coffey Mining Pty Ltd<br />

Table 17.5.2_1– High Grade and Low Grade Mineralized Domain Variogram Models 42<br />

Table 17.7_1 – Confidence Levels of Key Categorisation Criteria 46<br />

Table 17.7_2 – Grade Tonnage <strong>Report</strong> 46<br />

List of Figures<br />

Figure 4.1_1 – Location Plan Cerrado <strong>Verde</strong> <strong>Potash</strong> Project 11<br />

Figure 7.1_1 – Cerrado <strong>Verde</strong> <strong>Potash</strong> Project – Regional Setting 18<br />

Figure 7.2_1 – Cerrado <strong>Verde</strong> <strong>Potash</strong> Project – Project Geology 20<br />

Figure 9_1 – Cerrado <strong>Verde</strong> <strong>Potash</strong> Project – Portable XRF analysis 22<br />

Figure 10_1 – Tenements drilled by Amazon 23<br />

Figure 10_2 – Drillhole Location Plan 24<br />

Figure 11.1_1 – RC Drill Rig 25<br />

Figure 14.3_1 – Field Duplicates - All sample data 29<br />

Figure 17.2_1 – Vertical Sections Location 34<br />

Figure 17.2_2– Cross Section (Section 4) 35<br />

Figure 17.2_4– Low Grade Domain – 3D 35<br />

Figure 17.2_5– High Grade Domain in 3 Dimensions 36<br />

Figure 17.4_1 – Sample Length Distribution 37<br />

Figure 17.4_2 – Basic statistics – 2m composite Low Grade K2O 39<br />

Figure 17.4_3 – Basic statistics – 2m composite Low Grade K2O 40<br />

Figure 17.6_1 – K2O % estimation steps – Plan View 45<br />

Figure 17.7_1 – Block Model Domains Low Grade and High Grade 47<br />

Figure 17.7_2 – Grade Tonnage Curve – Domain High Grade - Inferred <strong>Resource</strong>. 48<br />

Figure 17.7_3 – Grade Tonnage Curve – Domain Low Grade - Inferred <strong>Resource</strong>. 48<br />

Figure 17.7.1_1 – Comparative Statistics – High Grade Domain. 49<br />

Figure 17.7.1_2 – Comparative Statistics – Low Grade Domain. 50<br />

List of Appendices<br />

Appendix A – Drill hole graphical logs


1 SUMMARY<br />

Coffey Mining Pty Ltd<br />

Coffey Mining Pty Ltd (Coffey Mining) has been commissioned by Amazon Mining Holding <strong>Plc</strong> (Amazon<br />

Mining) to complete a resource estimate for the Cerrado <strong>Verde</strong> <strong>Potash</strong> Project in Brazil.<br />

This report is prepared to comply with reporting requirements set forth in the Canadian National<br />

Instrument 43-101 (NI 43-101).<br />

The Cerrado <strong>Verde</strong> <strong>Potash</strong> Project is located in the Alto Paranaíba region of Minas Gerais State, Brazil.<br />

The Patos de Minas village can be reached by vehicle from Belo Horizonte in 3 hours (300km), via a<br />

good quality sealed road. From Patos de Minas village the project is accessed via a number of<br />

secondary gravel roads that connect the farming region. The local vegetation shows relicts of the<br />

primitive savanna (“cerrado”) amid the extensive farming area which includes soya and coffee, and<br />

industrial forests of eucalyptus and pine trees.<br />

The Cerrado <strong>Verde</strong> <strong>Potash</strong> Project comprises 96 tenements, covering an aggregate area of 1,468km2.<br />

25 of them (total area of 331Km2) are currently available into the DNPM (Brazilian National Mining<br />

Department) but were requested by FVS Mineração Ltda.. The others 71 tenements (total area of<br />

1,137Km2) are owned 100% by FVS Mineração Ltda., that is a subsidiary of Amazon Mining and no<br />

associated royalties and agreements are in place.<br />

The <strong>Verde</strong>te Slate is located on top of the Serra da Saudade Formation and underlies the Areado<br />

sandstones. Its apparent thickness varies from approximately 20m in the southernmost domain to over<br />

50m in the northern half of the Serra da Saudade. The units are oriented along a north south to north<br />

northeast direction and are continuously exposed for over 120km within the Amazon Mining permits.<br />

The <strong>Potash</strong> mineralization is associated with the Glauconite mineral which gives the <strong>Verde</strong>te Slate its<br />

distinctive green colour. Grab samples along the entire strike length range from 5% to 12% K2O. The<br />

potential tonnage is therefore very large.<br />

A Reverse Circulation (RC) drilling program comprising 19 holes for a total of 997m was undertaken in<br />

early 2010 by Amazon Mining and has targeted only a select portion of the regional <strong>Verde</strong>te Slate within<br />

the Amazon tenements. All holes were successful in intersecting the <strong>Verde</strong>te Slate.<br />

Coffey Mining has estimated the Preliminary Mineral <strong>Resource</strong> for the Cerrado <strong>Verde</strong> <strong>Potash</strong> Project as<br />

at 27 February 2010. All grade estimations were completed using Ordinary Kriging (‘OK’) for <strong>Potash</strong>.<br />

This estimation approach was considered appropriate based on review of a number of factors, including<br />

the quantity and spacing of available data, the interpreted controls on mineralization, and the style of<br />

mineralization. The estimation was constrained with mineralization interpretations.<br />

A total inferred resource of 160M t at 8.75% K2O has been determined (No cut-off applied) as shown in<br />

the table below.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 5


Table 1<br />

Cerrado <strong>Verde</strong> Deposit –27 February 2010<br />

Inferred Grade Tonnage <strong>Report</strong><br />

Ordinary Kriging Estimate<br />

100mE x 100mN x 5mRL Selective Mining Unit<br />

Domain Cut-Off Grade (% K2O) Million Tonnes Average Grade (% K2O)<br />

Low Grade<br />

High Grade<br />

Total Low Grade + High<br />

Grade<br />

0 67.82 6.22<br />

3 67.82 6.22<br />

4 67.45 6.23<br />

5 55.85 6.41<br />

6 33.19 7.27<br />

7 20.24 7.78<br />

8 6.49 8.52<br />

9 1.01 9.43<br />

0 92.74 10.61<br />

7 92.74 10.61<br />

8 92.20 10.63<br />

9 86.55 10.76<br />

10 64.39 11.17<br />

11 35.71 11.61<br />

12 8.24 12.33<br />

0 160.56 8.75<br />

Coffey Mining Pty Ltd<br />

Coffey Mining considers the Amazon Mining permits have demonstrated the potential to host a very<br />

large tonnage of the glauconitic <strong>Verde</strong>te Slate unit, as demonstrated by the preliminary resource drilling<br />

program and regional mapping and grab sampling.<br />

Coffey Mining recommends that a preliminary economic assessment (PEA) be undertaken on the<br />

Cerrado <strong>Verde</strong> Project prior to undertaking any additional resource definition.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 6


2 INTRODUCTION<br />

2.1 Scope of Work<br />

Coffey Mining Pty Ltd<br />

Coffey Mining Pty Ltd (Coffey Mining) has been commissioned by Amazon Mining Holding <strong>Plc</strong><br />

(Amazon Mining) to complete a <strong>Resource</strong> Estimate for the Cerrado <strong>Verde</strong> <strong>Potash</strong> Project in<br />

Brazil.<br />

The Cerrado <strong>Verde</strong> <strong>Potash</strong> Project is located 300km from Belo Horizonte city, in Minas Gerais<br />

State, Brazil.<br />

This report is prepared to comply with reporting requirements set forth in the Canadian<br />

National Instrument 43-101 (NI 43-101).<br />

2.2 Qualifications and Experience<br />

Coffey Mining is an international mining consulting firm specializing in the areas of geology,<br />

mining and geotechnical engineering, metallurgy, hydrogeology, hydrology, tailings disposal,<br />

environmental science and social and physical infrastructure.<br />

The “qualified persons” (as defined in NI 43-101) for the purpose of this report are Mr.<br />

Bernardo Viana and Mr. Beau Nicholls.<br />

Mr. Viana is a professional resource geologist with 8 years experience in resource and mining<br />

geology. Mr. Viana is a member of the Australian Institute of Geoscientists (MAIG) and has<br />

the appropriate relevant qualifications, experience and independence as defined in the<br />

Canadian National Instrument 43-101. Mr. Viana has not visited the Cerrado <strong>Verde</strong> <strong>Potash</strong><br />

Project.<br />

Mr. Nicholls is a professional geologist with 15 years experience in exploration and mining<br />

geology. He is an associate consultant for Coffey Mining. Mr. Nicholls is also a Member of<br />

the Australian Institute of Geosciences (MAIG) and has the appropriate relevant qualifications,<br />

experience and independence as defined in the Canadian National Instrument 43-101. Mr<br />

Nicholls visited the Cerrado <strong>Verde</strong> <strong>Potash</strong> Project between 10 th and 11 th July 2009.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 7


2.3 Independence<br />

Coffey Mining Pty Ltd<br />

Neither Coffey Mining, nor the authors of this report, have or have had previously any material<br />

interest in Amazon Mining or related entities or interests. Our relationship with Amazon<br />

Mining is solely one of professional association between client and independent consultant.<br />

This report is prepared in return for fees based upon agreed commercial rates and the<br />

payment of these fees is in no way contingent on the results of this report.<br />

2.4 Principal Sources of Information<br />

In addition to site visits undertaken to the Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, the authors of this<br />

report have relied extensively on information provided by Amazon Mining, extensive<br />

discussion with Amazon Mining, and studies completed by other internationally recognised<br />

independent consulting and engineering groups. A full listing of the principal sources of<br />

information is included in Section 21 of this report and a summary is provided below:<br />

Persio Mandetta 2009 – Planejamento de Sondagem Exploratória.<br />

Luis A.M Da Costa et al, Sept 2008 – Potential of Potassium-Bearing Rock of the Cedro<br />

do Abaeté Region, State of Minas Gerais, Brazil.<br />

Coffey Mining has made all reasonable enquiries to establish the completeness and<br />

authenticity of the information provided and identified, and a final draft of this report was<br />

provided to Amazon Mining along with a written request to identify any material errors or<br />

omissions prior to lodgement.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 8


2.5 Abbreviations<br />

A full listing of abbreviations used in this report is provided in Table 2.5_1 below.<br />

Table 2.5_1<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project<br />

List of Abbreviations<br />

Description Description<br />

Coffey Mining Pty Ltd<br />

$ United States of America dollars l/hr/m 2 litres per hour per square metre<br />

µ microns M Million<br />

3D three dimensional M Metres<br />

AAS atomic absorption spectrometer Ma thousand years<br />

Au Gold MIK Multiple Indicator Kriging<br />

bcm bank cubic metres Ml Millilitre<br />

CC correlation coefficient Mm Millimetres<br />

cfm cubic feet per minute MMI mobile metal ion<br />

CIC carbon in column Moz million ounces<br />

CIL carbon-in-leach Mtpa million tonnes per annum<br />

cm centimetre N (Y) Northing<br />

cusum cumulative sum of the deviations NaCN sodium cyanide<br />

CV coefficient of variation NATA National Association of Testing Authorities<br />

DDH diamond drillhole NPV net present value<br />

DTM digital terrain model NQ2 size of diamond drill rod/bit/core<br />

E (X) easting ºC degrees centigrade<br />

EDM electronic distance measuring OK Ordinary Kriging<br />

EV expected value Oz troy ounce<br />

g gram P80 -75µ 80% passing 75 microns<br />

g/m 3 grams per cubic metre PAL pulverise and leach<br />

g/t grams per tonne Ppb parts per billion<br />

HARD half the absolute relative difference Ppm parts per million<br />

HDPE high density poly ethylene Psi pounds per square inch<br />

HQ2 size of diamond drill rod/bit/core PVC poly vinyl chloride<br />

hr hours QC quality control<br />

HRD half relative difference Q-Q quantile-quantile<br />

ICP-MS inductivity coupled plasma mass spectroscopy RAB rotary air blast<br />

ID Inverse Distance weighting RC reverse circulation<br />

ID 2 Inverse Distance Squared RL (Z) reduced level<br />

IPS integrated pressure stripping ROM run of mine<br />

IRR internal rate of return RQD rock quality designation<br />

ISO International Standards Organisation SD standard deviation<br />

ITS Inchcape Testing Services SGS Société Générale de Surveillance<br />

kg kilogram SMU simulated mining unit<br />

K2O potash T tonnes<br />

km kilometres t/m 3 tonnes per cubic metre<br />

km 2 square kilometres<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 9


3 RELIANCE ON OTHER EXPERTS<br />

Coffey Mining Pty Ltd<br />

Neither Coffey Mining nor the authors of this report are qualified to provide comment on legal<br />

issues associated with the Cerrado <strong>Verde</strong> <strong>Potash</strong> Project included in Section 4 of this report.<br />

Assessment of these aspects has relied on information provided by Amazon Mining and has<br />

not been independently verified by Coffey Mining.<br />

Similarly, the authors of this report are not qualified to provide extensive comment on<br />

hydrological and environmental issues associated with the properties referred to in this report.<br />

Assessment of these aspects has relied heavily on information provided by Amazon Mining<br />

and its consultants, along with reports previously prepared by other independent consultants.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 10


4 PROPERTY DESCRIPTION AND LOCATION<br />

4.1 Project Location<br />

Coffey Mining Pty Ltd<br />

The Cerrado <strong>Verde</strong> <strong>Potash</strong> Project is located in the Alto Paranaíba region of Minas Gerais<br />

State, Brazil (Figure 4.1_1).<br />

Figure 4.1_1<br />

Location Plan of Cerrado <strong>Verde</strong> <strong>Potash</strong> Project<br />

The boundaries of the concessions have not been surveyed as this is not a requirement of<br />

Brazil’s mining code. The tenement boundaries are defined by UTM coordinates with the<br />

datum of SAD69 (Centred around coordinates 394,525 East and 7,856,531 North).<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 11


4.2 Tenement Status<br />

Coffey Mining Pty Ltd<br />

The Cerrado <strong>Verde</strong> <strong>Potash</strong> Project comprises 96 tenements, covering an aggregate area of<br />

1,468km 2 as shown in Table 4.2_1 and Figure 4.1_1.<br />

Concession<br />

Number<br />

Table 4.2_1<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project<br />

Tenement Schedule<br />

Year Type Holder<br />

831005 2009 REQUERIMENTO DE PESQUISA FVS Mineração Ltda 1893.72<br />

831006 2009 REQUERIMENTO DE PESQUISA FVS Mineração Ltda 1222.4<br />

831007 2009 REQUERIMENTO DE PESQUISA FVS Mineração Ltda 237.36<br />

831008 2009 REQUERIMENTO DE PESQUISA FVS Mineração Ltda 244.98<br />

833248 2008 REQUERIMENTO DE PESQUISA FVS Mineração Ltda 1849.51<br />

833249 2008 DISPONIBILIDADE FVS Mineração Ltda 1377.85<br />

833250 2008 DISPONIBILIDADE FVS Mineração Ltda 1715.95<br />

833251 2008 DISPONIBILIDADE FVS Mineração Ltda 1108.25<br />

833252 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1993.71<br />

833253 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1716.04<br />

833254 2008 REQUERIMENTO DE PESQUISA FVS Mineração Ltda 1232.36<br />

833254 2008 REQUERIMENTO DE PESQUISA FVS Mineração Ltda 18.98<br />

833255 2008 DISPONIBILIDADE FVS Mineração Ltda 1915.38<br />

833256 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1994.32<br />

833257 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1993.84<br />

833258 2008 DISPONIBILIDADE FVS Mineração Ltda 1994.34<br />

833259 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1476.58<br />

833260 2008 DISPONIBILIDADE FVS Mineração Ltda 1872.1<br />

833261 2008 DISPONIBILIDADE FVS Mineração Ltda 1994.38<br />

833262 2008 DISPONIBILIDADE FVS Mineração Ltda 1993.58<br />

833263 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1844.23<br />

833264 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1511.58<br />

833265 2008 DISPONIBILIDADE FVS Mineração Ltda 1.53<br />

833265 2008 DISPONIBILIDADE FVS Mineração Ltda 1390.29<br />

833266 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1230.03<br />

833267 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1663.21<br />

833268 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 966.82<br />

833269 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1771.42<br />

833270 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1991.78<br />

833271 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1524.17<br />

833272 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1587.61<br />

833273 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1994.32<br />

833274 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1994.84<br />

833275 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1994.06<br />

833276 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1334.71<br />

833277 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1992.24<br />

833278 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1993.88<br />

833279 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1952.53<br />

833280 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1742.04<br />

833281 2008 REQUERIMENTO DE PESQUISA FVS Mineração Ltda 164.86<br />

833281 2008 REQUERIMENTO DE PESQUISA FVS Mineração Ltda 1384.4<br />

833282 2008 DISPONIBILIDADE FVS Mineração Ltda 1047.73<br />

833283 2008 DISPONIBILIDADE FVS Mineração Ltda 812.85<br />

833284 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1468.97<br />

833285 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1993.69<br />

833286 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1943.82<br />

833287 2008 DISPONIBILIDADE FVS Mineração Ltda 1773.51<br />

833287 2008 DISPONIBILIDADE FVS Mineração Ltda 7.38<br />

833288 2008 DISPONIBILIDADE FVS Mineração Ltda 1989.29<br />

833289 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1928.55<br />

833290 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1678.42<br />

833291 2008 DISPONIBILIDADE FVS Mineração Ltda 977.78<br />

833292 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1935.96<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 12<br />

Area<br />

(ha)


Concession<br />

Number<br />

Year Type Holder<br />

Coffey Mining Pty Ltd<br />

833293 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1793.65<br />

833294 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1492.78<br />

833295 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1571.46<br />

833296 2008 DISPONIBILIDADE FVS Mineração Ltda 1778.26<br />

833297 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1985.37<br />

833305 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1555.92<br />

833306 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1712.36<br />

833307 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1993.77<br />

833308 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1990.91<br />

833309 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1559.42<br />

833310 2008 DISPONIBILIDADE FVS Mineração Ltda 1813.67<br />

833310 2008 DISPONIBILIDADE FVS Mineração Ltda 4.78<br />

833311 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1993.88<br />

833312 2008 DISPONIBILIDADE FVS Mineração Ltda 1676.1<br />

833312 2008 DISPONIBILIDADE FVS Mineração Ltda 1.54<br />

833312 2008 DISPONIBILIDADE FVS Mineração Ltda 11.92<br />

833313 2008 DISPONIBILIDADE FVS Mineração Ltda 1994.34<br />

833314 2008 DISPONIBILIDADE FVS Mineração Ltda 1853.7<br />

833315 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1992.07<br />

833316 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1994.21<br />

833317 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1551.02<br />

833318 2008 DISPONIBILIDADE FVS Mineração Ltda 1994.16<br />

833319 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1993.72<br />

833320 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1886.15<br />

833321 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1138.08<br />

833322 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1992.7<br />

833323 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1536.42<br />

833324 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1932.31<br />

833325 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1916.57<br />

833326 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1920.21<br />

833327 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1916.57<br />

833328 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1790.21<br />

833329 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 41.07<br />

833330 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1464.51<br />

833331 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1366.49<br />

833332 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1854.81<br />

833333 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1501.36<br />

833334 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1914.94<br />

833335 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1575.41<br />

833336 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1662.51<br />

833647 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1907.6<br />

833648 2008 AUTORIZAÇÃO DE PESQUISA FVS Mineração Ltda 1784.49<br />

833935 2008 REQUERIMENTO DE PESQUISA FVS Mineração Ltda 34.98<br />

Note 1<br />

4.3 Permits<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 13<br />

Area<br />

(ha)<br />

Total 146,880.5<br />

No extinction provision applies to Mining Concessions under Brazilvian legislation, as long as its titleholder complies with the<br />

administrative obligations established by law in order to maintain its validity.<br />

Amazon has acquired all the appropriate land owner and environmental permits to undertake<br />

the drilling in permits 833,306/2008 and 833,280/2008.<br />

No additional permits are required at the current stage of exploration


4.4 Royalties and Agreements<br />

Coffey Mining Pty Ltd<br />

The tenements are owned 100% by FVS Mineração Ltda., that is a subsidiary of Amazon<br />

Mining and no associated royalties and agreements are in place.<br />

4.5 Environmental Liabilities<br />

Coffey Mining is not aware of any environmental liabilities associated with the project.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 14


Coffey Mining Pty Ltd<br />

5 ACCESSIBILITY, CLIMATE, LOCAL RESOURCES, INFRASTRUCTURE<br />

AND PHYSIOGRAPHY<br />

5.1 Project Access<br />

Patos de Minas village can be reached by vehicle from Belo Horizonte in 3 hours, via a good<br />

quality sealed road (BR-262). From Patos de Minas village the project is accessed via a<br />

number of secondary gravel roads that connect the farming region.<br />

5.2 Physiography and Climate<br />

Annual rainfall in the area averages between 1,300mm and 1,800mm, 84% of which falls<br />

during the rainy season between October and March. December and January present the<br />

most intense precipitation. The annual average temperature is slightly above 20ºC.<br />

The local vegetation shows relicts of the primitive savanna (“cerrado”) amid the farming area<br />

which includes soya and coffee, and industrial forests of eucalyptus and pine trees. The farms<br />

are mainly confined to the fertile soil of the Mata da Corda Formation that underlines the flat<br />

tops of the mountain range with altitude levels between 1,000m to 2,000m.<br />

5.3 Local Infrastructure and Services<br />

Belo Horizonte is the capital and also the largest city in the state, with a population in excess<br />

of four (4) million. It is the major centre for the Brazilian mining industry. A large commercial<br />

airport with domestic and international flights services Belo Horizonte, which hosts several<br />

state and federal government agencies and private businesses that provide services to the<br />

mining industry. Skilled labour is readily available in Belo Horizonte and the local village of<br />

Patos de Minas.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 15


6 HISTORY<br />

6.1 Exploration History<br />

Coffey Mining Pty Ltd<br />

The <strong>Verde</strong>te Slate has been known as a potential <strong>Potash</strong> resource since the 1960’s<br />

although only regional mapping has been undertaken in the permits held by Amazon<br />

Mining.<br />

6.2 <strong>Resource</strong> History<br />

No historical resource estimates have been released.<br />

6.3 Mining History<br />

No historical mining of the <strong>Verde</strong>te slate has been undertaken.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 16


7 GEOLOGICAL SETTING<br />

7.1 Regional Setting<br />

Coffey Mining Pty Ltd<br />

The regional geology is mainly underlain by Neoproterozoic and Cretaceous rock units,<br />

which are partly covered by Cenozoic sandstones, lateritic sediments and soils. The<br />

oldest rocks, occurring in the southwestern portion of the region, are represented by<br />

calcoschists and diamictites of the Ibiá Formation (Araxá Group) surrounded by the<br />

Canastra Group (quartzites, phyllites and micaschists).<br />

The sequence is followed by the Bambui Group, which comprises the marine deposits of<br />

the Paraopeba Formation, the Santa Helena Formation and the Serra da Saudade<br />

Formation, which is the host to the <strong>Verde</strong>te Slate unit.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 17


Figure 7.1_1<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project – Regional Setting<br />

Coffey Mining Pty Ltd<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 18


7.2 Project Geology<br />

Coffey Mining Pty Ltd<br />

The <strong>Verde</strong>te Slate is located on top of the Serra da Saudade Formation and underlies the<br />

Areado sandstones. Its apparent thickness varies from approximately 20m in the<br />

southernmost domain to over 50m in the northern half of the Serra da Saudade and up to<br />

80m at the northern end where it is covered by younger sediments.<br />

The units are oriented along a north south to north northeast strike and are continuously<br />

exposed for over 120km within the Amazon Mining permits.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 19


Figure 7.2_1<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project – Project Geology<br />

Coffey Mining Pty Ltd<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 20


8 DEPOSIT TYPES<br />

Coffey Mining Pty Ltd<br />

Normally, Glauconite is considered a diagnostic element indicative of continental shelf<br />

marine depositional environments with slow rates of accumulation. It develops as a<br />

consequence of diagenetic alteration of sedimentary deposits, bio-chemical reduction and<br />

subsequent mineralogical changes affecting iron-bearing micas such as biotite, and is<br />

also influenced by the decaying process of organic matter degraded by bacteria in marine<br />

animal shells. Glauconite forms under reducing conditions in sediments.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 21


9 MINERALIZATION<br />

Coffey Mining Pty Ltd<br />

The <strong>Potash</strong> mineralization is associated with the Glauconite mineral which gives the <strong>Verde</strong>te<br />

Slate its distinctive green colour. Glauconite is an iron potassium phyllosilicate (mica group)<br />

mineral of characteristic green colour with very low weathering resistance.<br />

The <strong>Verde</strong>te slate held within the Amazon tenements can be traced for the entire 120km strike<br />

length with a potential width up to 500m wide. Grab samples along the entire strike length<br />

range from 5% to 12% K2O. The potential tonnage is therefore very large, could reach the<br />

magnitude of Billons of tons.<br />

Figure 9_1<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project – Analyzing with portable XRF unit<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 22


10 EXPLORATION<br />

Coffey Mining Pty Ltd<br />

Amazon Mining has completed remote sensing targeting exercise followed by regional<br />

mapping and grab samples. In addition, Amazon completed a preliminary survey using an<br />

Innov-X portable XRF unit. The portable XRF unit was then correlated to pulp standards and<br />

showed good precision although returned a positive bias in the order of


Figure 10_2<br />

Drillhole Location Plan<br />

Coffey Mining Pty Ltd<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 24


11 DRILLING<br />

11.1 Introduction<br />

Coffey Mining Pty Ltd<br />

The principal methods used for exploration drilling at Cerrado <strong>Verde</strong> have been reverse<br />

circulation drilling (RC).<br />

Figure 11.1_1<br />

RC Drill Rig<br />

Table 11.1_1 summarises pertinent drilling statistics. The main zone has been drilled at a<br />

nominal spacing of 100m to 400m.<br />

Table 11.1_1<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project<br />

Summary Drilling Statistics<br />

Company/Year Drillholes Metres Contractor Drill Rig Diameter<br />

Amazon Mining /<br />

2010<br />

19 997<br />

Fuad Rassi Engenharia Indústria e<br />

Comércio Ltda<br />

Prominas R1-H 4.5”<br />

All drillholes have been drilled vertical to an average of 52m deep. No downhole surveys<br />

have been completed due to the short vertical holes and scale of mineralization.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 25


Coffey Mining Pty Ltd<br />

Drillhole collars were surveyed by Amazon Mining surveyors using a portable GPS with<br />

accuracy of +/-5m.<br />

Accuracy of the survey measurements (downhole and surface) meets acceptable industry<br />

standards for the style of mineralization.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 26


12 SAMPLING METHOD AND APPROACH<br />

12.1 Reverse Circulation (RC) Sampling<br />

Coffey Mining Pty Ltd<br />

The samples were taken on 2m intervals and riffle split down to 3kg samples. Sample<br />

weights were not recorded but recoveries were reported as good.<br />

12.2 Logging<br />

Drill samples were sieved during drilling and a small sample of the chips was stored in chip<br />

trays for future reference.<br />

Basic weathering and lithologies were recorded by the geologists and entered into a digital<br />

database.<br />

12.3 Bulk Density<br />

Amazon utilised a consulting group, ConcreSolo, to undertake Bulk Density measurements.<br />

Coffey Mining has reviewed the methodology used by the company ConcreSolo, and noted<br />

that the 22 samples measured the saturated Bulk Density of grab samples collected from<br />

surface.<br />

Coffey Mining considers that given the apparent leached zone in the first 10m of drilling that<br />

down hole samples should be undertaken, to determine if there is any change in density with<br />

depth.<br />

Coffey Mining also considers that saturated bulk density measurements are not appropriate<br />

for resource estimation. Dry bulk density should be determined.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 27


13 SAMPLE PREPARATION, ANALYSES AND SECURITY<br />

13.1 Sample Security<br />

Coffey Mining Pty Ltd<br />

All samples following drilling were sent via an Amazon Mining vehicle to the Bureau Veritas<br />

laboratory in Belo Horizonte for analysis. All sample reject, pulps and chip trays are stored at<br />

the Amazon Mining base in Belo Horizonte<br />

13.2 Sample Preparation and Analysis<br />

All samples have been prepared and analysed by Bureau Veritas in Belo Horizonte.<br />

• The samples were received then dried, crushed to 2mm and riffle split<br />

• Samples were analysed by XRF for Fe2O3, SiO2, Al2O3, CaO, MgO, MnO, TiO2, Na2O,<br />

K2O, BaO, P2O5, Cr2O3, SrO and LOI.<br />

Bureau Veritas insert duplicates, blanks and certified standards at a rate of 5% to maintain<br />

their quality control.<br />

13.3 Adequacy of Procedures<br />

Coffey Mining considers the sample preparation, analysis and sample security to be of<br />

acceptable standards.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 28


14 DATA VERIFICATION<br />

14.1 Introduction<br />

Coffey Mining Pty Ltd<br />

Amazon did not carry out a proper QAQC program. The current QAQC analysis is the internal<br />

Bureau Veritas program.<br />

5% of samples sent to the Bureau Veritas were then sent to SGS-Geosol in Belo Horizonte to<br />

undertake an umpire sample.<br />

Coffey Mining has reviewed the QAQC results returned by Bureau Veritas as follows<br />

14.2 Bureau Veritas Standards<br />

Standard<br />

Expected<br />

Value<br />

K2O %<br />

+/-10% (EV)<br />

Table 14.2_1<br />

Standards Utilized by Bureau Veritas<br />

Failed<br />

No of<br />

Analyses<br />

Minimum<br />

(%)<br />

Maximum<br />

(%)<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 29<br />

Mean<br />

(%))<br />

IPT 146 0.04 0.034 and 0.042 5 6 0 .07 0.05<br />

IPT 53 12.1 10.89 and 13.31 0 6 11.95 12.61 12.18<br />

IPT53+IPT146 6.07 5.46 and 6.67 0 6 5.84 6.36 6.07<br />

%<br />

Within<br />

+/- 10<br />

of EV<br />

Pulp Blank 0


Figure 14.3_1<br />

Field Duplicates - All sample data (Includes NQ and HQ core 0.3 to 5m)<br />

Coffey Mining Pty Ltd<br />

K2O ID K2O ID<br />

SAMPLE A SAMPLE B Units Result<br />

No. Pairs: 37 37 Pearson CC: 0.99<br />

Minimum: 0.07 0.02 g/t Spearman CC: 0.97<br />

Maximum: 13.50 12.71 g/t Mean HARD: 2.54<br />

Mean: 9.09 9.04 g/t Median HARD: 0.46<br />

Median 10.08 9.91 g/t<br />

Std. Deviation: 3.10 3.03 g/t Mean HRD: 1.65<br />

Coefficient of Variation: 0.34 0.34 Median HRD 0.09<br />

HARD (%)<br />

Frequency (%)<br />

Absolute Difference (g/t)<br />

K2O ID SAMPLE B (g/t)<br />

60<br />

40<br />

20<br />

Mean vs. HARD Plot<br />

(All Data)<br />

0<br />

0.01 0.1 1 10 100<br />

100<br />

50<br />

Mean of Data Pair (g/t)<br />

Mean HARD: 2.54 Median HARD: 0.46<br />

Precision: 10%<br />

0<br />

-1.0 0.0 1.0<br />

0.01<br />

HRD Histogram<br />

(All Data)<br />

HRD (/100)<br />

Mean HRD: 1.65 Median HRD: 0.09<br />

Precision: +/-10%<br />

0.001<br />

0.01 0.1 1 10 100<br />

15<br />

10<br />

5<br />

10<br />

1<br />

0.1<br />

Bureau Veritas - Pulp Duplicates<br />

(All Data)<br />

T & H Precision Plot (Assay Pairs)<br />

(All Data)<br />

Mean of Data Pair (g/t)<br />

10% 20% 30% 50%<br />

Correlation Plot<br />

(All Data)<br />

0<br />

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15<br />

K2O ID SAMPLE A (g/t)<br />

P.CC= 0.99 S.CC= 0.97 Ref. Line<br />

y = 0.97x + 0.24<br />

0<br />

0 10 20 30 40 50 60 70 80 90 100<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 30<br />

HARD (%)<br />

HRD (%)<br />

Median AD (g/t)<br />

K2O ID SAMPLE B (g/t)<br />

100<br />

50<br />

60<br />

40<br />

20<br />

0<br />

Rank HARD Plot<br />

(All Data)<br />

Rank (%)<br />

Precision: 10%<br />

Mean vs. HRD Plot<br />

(All Data)<br />

97.30% of data are within<br />

Precision limits<br />

-20<br />

0.01 0.1 1 10 100<br />

10<br />

1<br />

0.1<br />

Mean of Data Pair (g/t)<br />

Mean HRD: 1.65 Median HRD: 0.09<br />

Precision: +/-10%<br />

T & H Precision Plot (Grouped Pairs)<br />

(All Data)<br />

0.01<br />

1 10 100<br />

15<br />

10<br />

5<br />

Grouped Mean of Pair (g/t)<br />

10% 20% 30% 50%<br />

QQ Plot<br />

(All Data)<br />

0<br />

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15<br />

K2O ID SAMPLE A (g/t)<br />

Ref. Line y = 0.97x + 0.19<br />

Printed: 13-Apr-2010 19:02:27 Data Imported: 13-Apr-2010 18:57:18 Page 1


14.4 Adequacy of Procedures<br />

Coffey Mining Pty Ltd<br />

No Quality control data has been supplied by Amazon Mining. Coffey Mining recommends<br />

that Amazon Mining adopt a similar QAQC program as utilised by Bureau Veritas, which<br />

includes the use of certified standards, blanks and pulp duplicates. In addition Coffey Mining<br />

would recommend that field duplicates which would require the resplitting of the reverse<br />

Circulation field reject sample to be submitted at a rate of 5%.<br />

The Bureau Veritas QAQC data shows good precision and accuracy.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 31


15 ADJACENT PROPERTIES<br />

Coffey Mining Pty Ltd<br />

There are no advanced potash properties in the immediate vicinity of the Cerrado <strong>Verde</strong><br />

Project.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 32


16 MINERAL PROCESSING AND METALLURGICAL TESTING<br />

Coffey Mining Pty Ltd<br />

Coffey Mining has not reviewed any metallurgical data related with the Cerrado <strong>Verde</strong> project.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 33


17 MINERAL RESOURCE AND MINERAL RESERVE ESTIMATES<br />

17.1 Introduction<br />

Coffey Mining Pty Ltd<br />

Coffey Mining has estimated the Preliminary Mineral <strong>Resource</strong> for the Cerrado <strong>Verde</strong> <strong>Potash</strong><br />

Project as at 27 February 2010. All grade estimation was completed using Ordinary Kriging<br />

(‘OK’) for <strong>Potash</strong>. This estimation approach was considered appropriate based on review of a<br />

number of factors, including the quantity and spacing of available data, the interpreted<br />

controls on mineralization, and the style of mineralization. The estimation was constrained<br />

with mineralization interpretations.<br />

17.2 Geological Modeling<br />

Based on grade information and geological observations from Coffey Mining and site based<br />

Amazon geologists, 1 high grade domain and 1 low grade domain have been interpreted<br />

using E-W oriented vertical sections.<br />

Interpretation and digitising of all constraining boundaries has been undertaken on cross<br />

sections orientated at 90º (drill line orientation). The interpretation was completed using<br />

8 vertical sections. Figure 17.2_1 shows the vertical sections location. The resultant digitised<br />

boundaries have been used to construct wireframe defining the three-dimensional geometry<br />

of each interpreted feature. The interpretation and wireframe models have been developed<br />

using the Gemcom Surpac mine planning software package.<br />

As the drill holes collars were surveyed using a portable GPS the RL values of each one were<br />

defined by Coffey draping those collars to the 3D topography surface.<br />

Figure 17.2_1<br />

Vertical Sections L- ocation<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 34


Coffey Mining Pty Ltd<br />

For the purpose of the resource estimation, 2 mineralized domains were interpreted and<br />

modelled to the <strong>Verde</strong>te slate which is characterised by the green glauconitic mineralization..<br />

Cross section examples are shown in the figures below.<br />

Figure 17.2_2<br />

Cross Section (Section 4)<br />

Figure 17.2_3<br />

Cross Section (Section 5)<br />

The following figures below show the two domain wireframes interpreted in 3 dimensions<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 35


Figure 17.2_4<br />

Low Grade Domain – 3 Dimensions<br />

Figure 517.2_5<br />

High Grade Domain – 3 Dimensions<br />

Coffey Mining Pty Ltd<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 36


17.3 Block Model Development<br />

Coffey Mining Pty Ltd<br />

A three-dimensional block model was constructed for the Cerrado <strong>Verde</strong> deposit, covering all<br />

the interpreted mineralization zones and including suitable additional waste material to allow<br />

later pit optimisation studies. The block model has been developed using Gemcom Surpac<br />

Mine planning software.<br />

A parent block size of 100mE x 100mN x 10mRL has been used for all materials with sub-<br />

blocking to 50mE x 50mN x 5mRL to allow adequate volume resolution. To obtain a robust<br />

flagging of the wireframe in the block model, a percent model technique was used which<br />

calculates the percentage of the block inside the high grade wireframe. This provides a more<br />

accurate volume estimate. Bulk density has been coded to the block model based on the<br />

defined density values provided by Amazon.<br />

The Table 17.3_1 below shows the summary of the block model created.<br />

Table 17.3_1<br />

Block Model Summary<br />

Y X Z<br />

Minimum Coordinates 7,868,000 407,500 600<br />

Maximum Coordinates 7,871,500 409,500 1,050<br />

User Block Size 100 100 10<br />

Min. Block Size 50 50 5<br />

Rotation 0 0 0<br />

17.4 Statistical Analysis<br />

The drillhole database was composited to a 2m down hole composite intervals, recording. The<br />

2m composites were used for all statistical, geostatistical and grade estimation studies. The<br />

decision to use 2m composites was based the raw sample lengths of sampled intervals (Figure<br />

17.4_1).<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 37


Statistical analysis of the composite datasets was completed within the low grade and high<br />

grade domains. Descriptive statistics are presented in Table 17.4_1.<br />

High Grade Domain<br />

Low Grade Domain<br />

“Box and whisker” plots for the mineralized intervals were compiled for high grade and low<br />

grade K2O in Figures 177.4.2<br />

and 17.4.3, respectively.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908<br />

Figure 17.4_1<br />

Sample Length Distribution<br />

Table 17.4_1<br />

Summary Statistics – 2m Composites<br />

Count<br />

Minimum<br />

Maximum<br />

Mean<br />

Std. Dev.<br />

CV<br />

Count<br />

Minimum<br />

Maximum<br />

Mean<br />

Std. Dev.<br />

CV<br />

CCoffey<br />

Mining Pty Ltd<br />

K2O (%)<br />

244<br />

7.09<br />

13.02<br />

10.95<br />

1.09<br />

0.09<br />

174<br />

3.31<br />

10.74<br />

6.62<br />

1.69<br />

0.26<br />

Page: 38


Alvo: CV<br />

Litologia: <strong>Verde</strong>te<br />

Variável: K2O (%)<br />

Número de Amostras: 244<br />

Mínimo Valor: 7.09<br />

Máximo Valor: 13.02<br />

N° Classes (Sturges): 9<br />

Intervalo (Sturges): 0.66<br />

Quantiles<br />

2.5%: 8.45<br />

5.0%: 8.79<br />

25.0%: 10.34<br />

Mediana: 11.15<br />

75.0%: 11.70<br />

95.0%: 12.38<br />

97.5%: 12.73<br />

Média: 10.95<br />

Variância: 1.18<br />

Desvio Padrão: 1.09<br />

Coef. de variação: 10%<br />

Range interquartil: 1.37<br />

Figure 17.4_2<br />

Basic statistics – 2m composite High Grade K2O<br />

Coffey Mining Pty Ltd<br />

Based on the statistical review a top cut was applied to low grade mineralization based on the<br />

97.5 percentile which included only one high grade assay being reduced to 10.73% K2O.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 39


Alvo: CV<br />

Litologia: <strong>Verde</strong>te<br />

Variável: K2O (%)<br />

Número de Amostras: 174<br />

Mínimo Valor: 3<br />

Máximo Valor: 11<br />

N° Classes (Sturges): 8<br />

Intervalo (Sturges): 0.88<br />

Quantiles<br />

2.5%: 3.97<br />

5.0%: 4.06<br />

25.0%: 5.16<br />

Mediana: 6.52<br />

75.0%: 7.88<br />

95.0%: 9.40<br />

97.5%: 10.11<br />

Média: 6.62<br />

Variância: 2.88<br />

Desvio Padrão: 1.70<br />

Coef. de variação: 26%<br />

Range interquartil: 2.72<br />

Figure 17.4_3<br />

Basic statistics – 2m composite Low Grade K2O<br />

No top cut was applied to the high grade domain.<br />

Coffey Mining Pty Ltd<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 40


17.5 Variography<br />

17.5.1 Introduction<br />

Coffey Mining Pty Ltd<br />

Variography is used to describe the spatial variability or correlation of an attribute. The spatial<br />

variability is traditionally measured by means of a variogram, which is generated by<br />

determining the averaged squared difference of data points at a nominated distance (h), or lag<br />

(Srivastava and Isaacs, 1989). The averaged squared difference (variogram or γ(h)) for each<br />

lag distance is plotted on a bivariate plot, where the X-axis is the lag distance and the Y-axis<br />

represents the average squared differences (γ(h)) for the nominated lag distance.<br />

Several types of variogram calculations are employed to determine the directions of the<br />

continuity of the mineralization:<br />

Traditional variograms are calculated from the raw assay values.<br />

Log-transformed variography involves a logarithmic transformation of the assay data.<br />

Gausssian variograms are based on the results after declustering and a transformation to<br />

a Normal distribution.<br />

Pairwise-relative variograms attempt to ‘normalise’ the variogram by dividing the<br />

variogram value for each pair by their squared mean value.<br />

Correlograms are ‘standardized’ by the variance calculated from the sample values that<br />

contribute to each lag.<br />

Fan variography involves the graphical representation of spatial trends by calculating a range<br />

of variograms in a selected plane and contouring the variogram values. The result is a<br />

contour map of the grade continuity within the domain.<br />

The variography was calculated and modelled in the mining planning software, Gemcom Surpac<br />

Software. The rotations are tabulated as input into Gemcom Surpac Software (geological<br />

convention), with X representing the bearing, Y representing dip and Z representing plunge. Dip<br />

and dip direction of major, semi-major and minor axes of continuity are also referred to in the<br />

text.<br />

Grade variography was generated to enable grade estimation via OK. Interpreted anisotropy<br />

directions correspond well with the modelled geology and overall geometry of the interpreted<br />

domain. The results are show in Table 17.5.2_1.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 41


K2O<br />

Nugget<br />

(C0)<br />

Table 17.5.2_1<br />

Cerrado <strong>Verde</strong> Deposit<br />

High Grade and Low Grade Mineralized Domain Variogram Models<br />

Rotation Structure 1 Structure 2<br />

Bearing Dip plunge<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 42<br />

Sill 1<br />

(C1)<br />

Coffey Mining Pty Ltd<br />

Range (m) Sill 2<br />

Range (m)<br />

Major Semi Major Minor (C2) Major Semi Major Minor<br />

Low Grade 0.21 180 -10 0 0.34 200 100 16.53 1.20 400 200 33.06<br />

High Grade 0.21 180 -10 0 0.34 200 100 16.53 1.20 400 200 33.06


17.6 Grade Estimation<br />

<strong>Resource</strong> estimation for the Cerrado <strong>Verde</strong> mineralization was completed using Ordinary<br />

Kriging (OK) within the low grade and high grade mineralized domain.<br />

OK is the most commonly used type of kriging. It assumes a constant but unknown mean.<br />

Typical ordinary kriging assumptions<br />

The typical assumptions for the practical application of ordinary kriging are:<br />

• Intrinsic stationarity or wide sense stationarity of the field<br />

• Enough observations to estimate the variogram.<br />

The mathematical condition for applicability of ordinary kriging is:<br />

• The he mean E[Z(x)] = µ is unknown but constant<br />

• The variogram γ(x,y) = E[(Z(x) − Z(y))2] of Z(x) is known.<br />

Ordinary Kriging equation<br />

The kriging weights of ordinary kriging fulfill the unbiasedness condition<br />

and are given by the ordinary kriging equation system:<br />

the additional l parameter µ is a Lagrange multiplier used in the minimization of the kriging error<br />

to honor the unbiasedness condition.<br />

Ordinary kriging interpolation<br />

The interpolation by ordinary kriging is given by:<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908<br />

Technical <strong>Report</strong> – 1 March 2010<br />

CCoffey<br />

Mining Pty Ltd<br />

Page: 43


Ordinary kriging error<br />

The kriging error is given by:<br />

Properties of kriging (Cressie 1993, Chiles&Delfiner 1999, Wackernagel 1995)<br />

• The kriging estimation is unbiased:<br />

• The kriging estimation honors the actually observed value:<br />

• The kriging estimation is the best linear unbiased estimator of Z(x) if the<br />

assumptions hold. However (e.g. Cressie 1993):<br />

• As with any method: If the assumptions do not hold, kriging might be bad.<br />

• There might be better nonlinear and/or biased methods.<br />

• No properties are guaranteed, when the wrong variogram is used. However typically<br />

still a 'good' interpolation is achieved.<br />

• Best est is not necessarily good: e.g. In case of no spatial dependence the kriging<br />

interpolation is only as good as the arithmetic mean.<br />

• Kriging provides as a measure of precision. However this measure relies on the<br />

correctness of the variogram.<br />

Additional to the drilling samples, channel composites samples, from complementary<br />

sampling campaign were used, after a test of adequacy of support.<br />

The Figure below shows the estimation steps undertaken in the Cerrado <strong>Verde</strong> estimation.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908<br />

Technical <strong>Report</strong> – 1 March 2010<br />

CCoffey<br />

Mining Pty Ltd<br />

Page: 44


Figure 17.6_1<br />

K2O % estimation steps – Plan View.<br />

Coffey Mining Pty Ltd<br />

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Technical <strong>Report</strong> – 1 March 2010


17.7 <strong>Resource</strong> <strong>Report</strong>ing<br />

Coffey Mining Pty Ltd<br />

The grade estimates for all domains have been classified as Inferred based on the confidence<br />

levels of the key criteria that were considered during the resource estimation. Key criteria are<br />

tabulated below. A summary of the estimated resources for the Cerrado <strong>Verde</strong> deposit is<br />

provided in Table 17.7_1 below.<br />

Table 17.7_1<br />

Cerrado <strong>Verde</strong> Project<br />

Confidence Levels of Key Categorisation Criteria<br />

Items Discussion Confidence<br />

Drilling Techniques Reverse Circulation drilling is Industry standard approach. High<br />

Logging Standard nomenclature and apparent good quality. High<br />

Drill Sample Recovery Good recovery recorded. High<br />

Sub-sampling Techniques &<br />

Sample Preparation<br />

Quality of Assay Data<br />

Verification of Sampling and<br />

Assaying<br />

Location of Sampling Points<br />

Sampling technique and preparation is to industry standards.<br />

Bulk Density samples have been determined as saturated<br />

samples (not industry standard procedure)<br />

No Amazon Mining QAQC data reviewed, Bureau Veritas<br />

QAQC data returned good precision and accuracy<br />

Umpire samples have not been taken<br />

Survey of all collars completed for most holes using portable<br />

GPS. No downhole surveys but minimal deviation expected<br />

with short vertical holes<br />

Data Density and Distribution Approximately 200m x 400m spaced drilling Moderate<br />

Audits or Reviews None N/A<br />

Database Integrity<br />

Assay hard copy sheets were randomly checked against the<br />

digital database with no errors identified<br />

Geological Interpretation Simple geology, two domains defined. High<br />

Estimation and Modelling<br />

Techniques<br />

Ordinary Kriging has been used to obtain estimates of K2O<br />

% grade.<br />

The Inferred resource has been classified based on blocks estimated until step 5 with a<br />

maximum range of 1000m. The total Inferred resource estimate is shown in Table 17.7_2<br />

utilising different cut off grades. The additional figures are different views of the model as<br />

used in the validation process.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 46<br />

Technical <strong>Report</strong> – 1 March 2010<br />

Low<br />

Low<br />

Low<br />

Low<br />

High<br />

High


Table 17.7_2<br />

Cerrado <strong>Verde</strong> Deposit –27 February 2010<br />

Inferred Grade Tonnage <strong>Report</strong><br />

Ordinary Kriging Estimate<br />

100mE x 100mN x 5mRL Selective Mining Unit<br />

Domain Cut-Off Grade (% K2O) Million Tonnes Average Grade (% K2O)<br />

Low Grade<br />

High Grade<br />

Total Low Grade + High<br />

Grade<br />

0 67.82 6.22<br />

3 67.82 6.22<br />

4 67.45 6.23<br />

5 55.85 6.41<br />

6 33.19 7.27<br />

7 20.24 7.78<br />

8 6.49 8.52<br />

9 1.01 9.43<br />

0 92.74 10.61<br />

7 92.74 10.61<br />

8 92.20 10.63<br />

9 86.55 10.76<br />

10 64.39 11.17<br />

11 35.71 11.61<br />

12 8.24 12.33<br />

0 160.56 8.75<br />

Coffey Mining Pty Ltd<br />

The resource estimate has been classified as inferred mainly due to the low confidence in the<br />

Bulk Density determinations, data density of distribution and the limited QAQC program<br />

provided by Amazon Mining. The actual model shows relative homogeneity and is a simple<br />

geological model.<br />

Figure 17.7_1<br />

Block Model Domains Low Grade and High Grade<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 47<br />

Technical <strong>Report</strong> – 1 March 2010


Coffey Mining Pty Ltd<br />

The Figure below shows the grade and tonnage curve for the high and low grade domains.<br />

Tonnes (Mt)<br />

Tonnes (Mt)<br />

100.00<br />

90.00<br />

80.00<br />

70.00<br />

60.00<br />

50.00<br />

40.00<br />

30.00<br />

20.00<br />

10.00<br />

-<br />

80.00<br />

70.00<br />

60.00<br />

50.00<br />

40.00<br />

30.00<br />

20.00<br />

10.00<br />

-<br />

Figure 17.7_2<br />

Grade Tonnage Curve – Domain High Grade - Inferred <strong>Resource</strong><br />

0.0 7.0 8.0 9.0 10.0 11.0<br />

9.5<br />

12.0<br />

Cut-off Grade (%) K 2O<br />

Tonnes (Mt) K2O (%) Grade (average)<br />

Figure 17.7_3<br />

Grade Tonnage Curve – Domain Low Grade - Inferred <strong>Resource</strong><br />

-<br />

0.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0<br />

Cut-off Grade (%) K 2O<br />

Tonnes (Mt) Teor K2O (%) (average)<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 48<br />

Technical <strong>Report</strong> – 1 March 2010<br />

12.5<br />

12.0<br />

11.5<br />

11.0<br />

10.5<br />

10.0<br />

Average (%) K 2O<br />

10.00<br />

9.00<br />

8.00<br />

7.00<br />

6.00<br />

5.00<br />

4.00<br />

3.00<br />

2.00<br />

1.00<br />

Average (%) K 2O


17.7.1 Validation<br />

Coffey Mining Pty Ltd<br />

Validation of the grade estimate was completed with a comparative Nearest Neighbor<br />

estimation. Validation consists of a comparative statistical analysis over inferred results for<br />

low grade and high grade mineralized intervals. In addition an interactive visual validation<br />

utilizing the drill holes and the block model was completed in plan and cross section (Figures<br />

17.7.1_1 to 17.7.1_2). The visual validation of the OK model shows a good correlation,<br />

considering the inferred level of resource classification, between the blocks estimated and the<br />

original samples.<br />

Target<br />

Lithology<br />

Variable<br />

<strong>Resource</strong><br />

8.12cm<br />

Cerrado <strong>Verde</strong><br />

High Grade<br />

K2O<br />

Inferred<br />

Ordinary Kriging<br />

9.95cm<br />

Figure 17.7.1_1<br />

Comparative statistics % K2O High Grade<br />

Cerrado <strong>Verde</strong><br />

8.12cm<br />

NN-Check<br />

Samples:<br />

Minimum:<br />

572<br />

7.58<br />

Quantiles<br />

Samples:<br />

Minimum:<br />

572<br />

7.45<br />

Quantiles<br />

Maximum: 12.76<br />

2.50% 8.57<br />

Maximum: 13.02<br />

2.50% 7.97<br />

1° Quartil: 9.71<br />

1° Quartil: 9.07<br />

Mean: 10.54 Median: 10.74<br />

Mean: 10.39 Median: 10.59<br />

Variance: 1.04 3° Quartil: 11.19<br />

Variance: 1.73 3° Quartil: 11.37<br />

Std. Deviation: 1.02 97.5%: 12.48<br />

Std. Deviation: 1.32 97.5%: 12.63<br />

Correlation Q-Q Plot<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 49<br />

Technical <strong>Report</strong> – 1 March 2010<br />

9.95cm


Target<br />

Lithology<br />

Variable<br />

<strong>Resource</strong><br />

Cerrado <strong>Verde</strong><br />

Low Grade<br />

K2O<br />

Inferred<br />

Figure 17.7.1_2<br />

Comparative statistics % K2O Low Grade<br />

Cerrado <strong>Verde</strong><br />

Ordinary Kriging NN-Check<br />

Coffey Mining Pty Ltd<br />

Samples:<br />

Minimum:<br />

428<br />

3.42<br />

Quantiles<br />

Samples:<br />

Minimum:<br />

428<br />

3.31<br />

Quantiles<br />

Maximum: 9.75<br />

2.50% 4.37<br />

Maximum: 9.89<br />

2.50% 3.92<br />

1° Quartil: 5.15<br />

1° Quartil: 4.41<br />

Mean: 6.15<br />

Median: 5.98<br />

Mean: 5.80<br />

Median: 5.36<br />

Variance: 1.57<br />

3° Quartil: 7.09<br />

Variance: 2.49<br />

3° Quartil: 6.76<br />

Std. Deviation: 1.25<br />

97.5%: 8.61<br />

Std. Deviation: 1.58<br />

97.5%: 9.38<br />

Correlation Q-Q Plot<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 50<br />

Technical <strong>Report</strong> – 1 March 2010


18 OTHER RELEVANT DATA AND INFORMATION<br />

There is no other relevant data and information that Coffey Mining is aware of.<br />

Coffey Mining Pty Ltd<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 51<br />

Technical <strong>Report</strong> – 1 March 2010


19 INTERPRETATION AND CONCLUSIONS<br />

Coffey Mining Pty Ltd<br />

The pertinent observations and interpretations which have been developed in producing this<br />

report are detailed in the sections above.<br />

20 RECOMMENDATIONS<br />

Coffey Mining recommends that a preliminary economic assessment (PEA) be undertaken on<br />

the Cerrado <strong>Verde</strong> Project prior to undertaking any additional resource definition.<br />

The current resource estimate confidence can be improved by<br />

20.1 Budget and Schedule<br />

Undertaking additional Bulk Density measurements on diamond core downhole.<br />

Improve the current surface topography<br />

Improve current internal quality control procedures<br />

The studies including predominantly metallurgical test work are budgeted at $1M in 2010 and<br />

$1.5M in 2011. This budget will allow Amazon to complete a Preliminary Economic<br />

Assessment in 2010 and assuming positive results, progress to a Pre-feasibility Study by the<br />

end of year 2010.<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 52<br />

Technical <strong>Report</strong> – 1 March 2010


21 REFERENCES<br />

Coffey Mining Pty Ltd<br />

Jose Valarelli et al – 1992 – Ardosias “<strong>Verde</strong>te” de CEdro do Abaete na Producao de Termofosfato Potassico<br />

Fundido e sua Eficiencia Agronomica<br />

Persio Mandetta 2009 – Planejamento de Sondagem Exploratoria.<br />

Luis A.M Da Costa et al, Sept 2008 – Potential of Potassium-Bearing Rock of the Cedro do<br />

Abaete Region, State of Minas Gerais, Brazil.<br />

http://en.wikipedia.org/wiki/Glauconite<br />

http://en.wikipedia.org/wiki/Kriging#Ordinary_kriging<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 53<br />

Technical <strong>Report</strong> – 1 March 2010


22 DATE AND SIGNATURE PAGE<br />

The effective date of this <strong>Report</strong> is 1 March 2010.<br />

B Viana<br />

<strong>Resource</strong> Geologist<br />

Coffey Mining Pty Ltd<br />

15 April 2010<br />

B Nicholls<br />

Associate Consultant<br />

Coffey Mining Pty Ltd<br />

15 April 2010<br />

10 April 2010<br />

BSc (Geol) , MAIG<br />

B.Sc Geol. MAIG<br />

Coffey Mining Pty Ltd<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 54<br />

Technical <strong>Report</strong> – 1 March 2010


23 CERTIFICATES OF AUTHORS<br />

Coffey Mining Pty Ltd<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 55<br />

Technical <strong>Report</strong> – 1 March 2010


Certificate of Qualified Person<br />

Coffey Mining Pty Ltd<br />

As primary author of the report entitled “Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil, Technical <strong>Report</strong>” (the <strong>Report</strong>),<br />

dated 1 March 2010, I hereby state:<br />

1. I, Bernardo Viana, am an Associate <strong>Resource</strong> Geologist with the firm Coffey Mining Pty Ltd, 1162 Hay Street,<br />

West Perth, Western Australia, Australia, do hereby certify that:-<br />

2. I am a practising resource geologist and I am a Member of the AIG (Australasian Institute of Geoscientists).<br />

3. I am a graduate of Federal University of Minas Gerais – Belo Horizonte and hold a Bachelor of Science<br />

Degree in Geology (2002). I have practiced my profession continuously since 2002.<br />

4. I am a “qualified person” as that term is defined in National Instrument 43-101 (Standards of Disclosure for<br />

Mineral Projects) (the “Instrument”).<br />

5. I have not visited the property that is the subject of this <strong>Report</strong>.<br />

6. I am responsible for Sections 12-20 of this report.<br />

7. I hereby consent to the use of this <strong>Report</strong> and my name in the preparation of documents for a public filing<br />

including a prospectus, an annual information filing, brokered or non-brokered financing(s), or for the<br />

submission to any Provincial or Federal regulatory authority.<br />

8. I am not aware of any material fact or material change with respect to the subject matter of the <strong>Report</strong> that is<br />

not reflected in the <strong>Report</strong>, or the omission to disclose which makes the <strong>Report</strong> misleading.<br />

9. I have read and understand National Instrument 43-101 and am considered independent of the issuer as<br />

defined in Section 1.4.<br />

10. I have read the National Instrument and Form 43-101F1 (the “Form”) and the Study has been prepared in<br />

compliance with the Instrument and the Form.<br />

11. I have not received, nor do I expect to receive, any interest, directly or indirectly, in the Properties that are the<br />

subject of this report and do not hold nor expect to receive securities of Amazon Mining Holding <strong>Plc</strong>.<br />

Dated at Belo Horizonte, Brazil, on 1 st March 2010.<br />

Bernardo Viana<br />

<strong>Resource</strong> Manager - Brazil<br />

Coffey Mining Pty Ltd<br />

BSc Geology MAIG<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 56<br />

Technical <strong>Report</strong> – 1 March 2010


Certificate of Qualified Person<br />

Coffey Mining Pty Ltd<br />

As co-author of the report entitled “Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil, Technical <strong>Report</strong>” (the <strong>Report</strong>), dated 1<br />

March 2010, I hereby state:<br />

1. I, Beau Nicholls, Associate Consultant of Coffey Mining Pty Ltd, 1162 Hay Street, West Perth, Western<br />

Australia, Australia, do hereby certify that:-:<br />

2. I am a practising geologist with 15 years of Mining and Exploration geological experience. I have worked in<br />

Australia, Eastern Europe, West Africa and currently Brazil. I am a member of the Australian Institute of<br />

Geoscientists (“MAIG”).<br />

3. I am a graduate of Western Australian School of Mines – Kalgoorlie and hold a Bachelor of Science Degree in<br />

Mineral Exploration and Mining Geology (1994). I have practiced my profession continuously since 1995.<br />

4. I am a “qualified person” as that term is defined in National Instrument 43-101 (Standards of Disclosure for<br />

Mineral Projects) (the “Instrument”).<br />

5. I visited the property that is the subject of this <strong>Report</strong> on 10th and 11th July 2009.<br />

6. I am responsible for Sections 1-11 of this report.<br />

7. I hereby consent to the use of this <strong>Report</strong> and my name in the preparation of documents for a public filing<br />

including a prospectus, an annual information filing,, brokered or non-brokered financing(s), or for the<br />

submission to any Provincial or Federal regulatory authority.<br />

8. I am not aware of any material fact or material change with respect to the subject matter of the <strong>Report</strong> that is<br />

not reflected in the <strong>Report</strong>, or the omission to disclose which makes the <strong>Report</strong> misleading and that as of the<br />

date of this certificate, to the best of my knowledge, information and belief, the <strong>Report</strong> contains all scientific<br />

and technical information that is required to be disclosed to make the <strong>Report</strong> not misleading.<br />

9. I have read and understand National Instrument 43-101 and am independent of the issuer as defined in<br />

Section 1.4 and prior to visiting Cerrado <strong>Verde</strong> I had no involvement in or knowledge of the property that is the<br />

subject of this <strong>Report</strong>.<br />

10. I have read the National Instrument and Form 43-101F1 (the “Form”) and the <strong>Report</strong> has been prepared in<br />

compliance with the Instrument and the Form.<br />

11. I have not received, nor do I expect to receive, any interest, directly or indirectly, in the Property that is the<br />

subject of this report and do not hold nor expect to receive securities of Amazon Mining Holding <strong>Plc</strong>.<br />

Dated at Belo Horizonte, Brazil, on 1 st March 2010.<br />

Beau Nicholls<br />

Associate Consultant<br />

Coffey Mining Pty Ltd<br />

B.Sc Geol MAIG<br />

Cerrado <strong>Verde</strong> <strong>Potash</strong> Project, Brazil – 360908 Page: 57<br />

Technical <strong>Report</strong> – 1 March 2010


Appendix A<br />

Drill hole graphical logs

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