Resource Report (PDF 4.63 MB) - Verde Potash Plc
Resource Report (PDF 4.63 MB) - Verde Potash Plc
Resource Report (PDF 4.63 MB) - Verde Potash Plc
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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 />
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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 />
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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 />
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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 />
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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 />
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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 />
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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