Tabla - Comparacion Estudios Ingenieria
-
Upload
edipovaliente -
Category
Documents
-
view
222 -
download
0
Transcript of Tabla - Comparacion Estudios Ingenieria
-
7/29/2019 Tabla - Comparacion Estudios Ingenieria
1/6
DESCRIPTIONConceptual
Sco in Stud
Prefeasibility
Stud
Feasibility
StudINTRODUCTION
Location, Topography and Climate
Site Location Map Basic mapPreliminary map showing claims and
boundaries
Detailed map showing a
boundaries
Topography Map Basic map showing site topographyPreliminary map showing site
topographic features
Detailed topographic map
verified with ground contro
Property Ownership Review of property leaseReview of property lease; claims list
provided; mineral rights known
Property lease and rights
controlled; claims list and
mineral rights secured
Current Status and History
Historical Chronology Basic presentat ion Full presentation Detailed presentationPast Production (if any) Basic presentation Full presentation Detailed presentation
EXPLORATION AND GEOLOGY
Geologic Description
Review Preliminary review Preliminary site-specific analysis Detailed site-specific analy
Data Posting Review of available existing mapsDetailed geologic mapping with cross-
sections
Deposit well-defined
dimensional mapping, g
long sections, level plans
Geologic Assessment Preliminary Basic assessment and review
Detailed assessment of
contacts, alteration,
deposit trends
Mineralogical Sampling & Analysis Limited sampling; preliminary assessmentPreliminary mineralogical sampling and
analysis; preliminary mineralogic study
Detailed mineralogical
mapping; detailed mineralo
Drilling, Sampling and Assaying
Drill Hole Parameters Wide spaced drilling as appropriate Initial in-fills of wide spaced drilling;preliminary grid patterns
Close spaced drilling on
pattern to support calc
categories
Underground Drilling Review of existing data Drilling if accessible Detailed drilling if accessib
Samples Preliminary; some outcrop samplesGeophysical and geotechnical sampling;
test pitsAll sampling programs com
Drilling/Assay DataPreliminary check of exist ing drill hole
data
Check of drill holes (coordinates,
elevations, angles, etc.), check assays,
angled hole vs vertical hole comparison;
assay flow diagram, dependable
database
Check of drill holes
elevations, angles, etc.),
angled hole vs vertical ho
assays, angled hole vs
comparison, twin hole drill
diagram; validated databas
Condemnation Drilling None NoneAreas under waste dump
plant drilled
RESOURCES AND RESERVES (Internationally Recognized Standards [see note 1])
Resources Indicated and Inferred Measured, Indicated, and Inferred Indicated and Measured
Geologic Controls AssumedEstablished from geologic data and/or
variogramsWell established from geol
Tonnage Factors Preliminary assessment if available Preliminary analysis and determinations Detailed analysis and dete
Statistical Analysis Not performed Preliminary analysis and determinations Detailed analysis and dete
Geostat istical Analysis Not performed Preliminary analysis and determinations Detailed analysis and dete
Reserves Only resources estimated Proven and Probable Proven and Probable
Calculation Parameters Usually no reserves are estimated Known or estimated Detailed analysis and dete
Cutoff Grade (COG) Equations Usually no reserves are estimatedCalculated from floating cone
parameters
Optimized using min
parameters
MINING
Mining MethodAssumed between open pit and
underground
Specific method identified Method and mine plan fina
Open Pit Mine Plan
Pit Slopes AssumedPreliminary estimates by rock type and
basic geotechnical data
Defined by geotechnica
structural mapping and
holes
Pit Design Simple outline of final pit
Preliminary pit design from optimized
analysis; preliminary haulroad
incorporated
Detailed pit designs with
access for equipment oper
Waste Dumps Simple outline of final dumps
Preliminary design for total waste
tonnage; incremental and final outline of
dumps
Dump sites identified from
data; final waste tonnag
with incremental phases, y
dump outlined
Underground Mine PlanAssumed mining system; general outline
of mine plan and development
Preliminary mining system identif ied
from geologic and geotechnical data
preliminary outline of mine plan and
development including mine access
Specific mining system
geologic and geotechnica
outline of mine plan and
including mine access
Production ScheduleBasic schedule based on assumed mine
life
Yearly and mine life ore and waste
tonnages and grade
Detailed annual schedules
product quality and waste
grades
Capital Cost EstimateOrder-of-magnitude, factored or from
similar operations
Preliminary equipment list; budget or
historical price quotes; some factoring
Detailed equipment list; fir
for all major equipment ite
items identified
Operating Cost EstimateOrder-of-magnitude; factored or from
similar operations
Quantif ied estimates for labor, power
and consumables; budget or historical
price quotes for unit prices; some
factoring
Detailed engineering estim
area based on quotes and
Minimum Report Contents for Engineering Studies
-
7/29/2019 Tabla - Comparacion Estudios Ingenieria
2/6
PROCESSING
Ore Sampling and Test Work
Minimal sampling; conduct lab bench
scale process characterization tests on
collected samples (if available)
Sampling of core; preliminary benchscale testing to determine preliminary
recoveries, ore characterization and
processing parameters for f low sheet
development
Sampling of core for dzones; confirm
comprehensive ben
program to determ
ore/product characteriza
processing parameters
Process Engineering and Design
Production Rate and Product(s)First estimate of production rate and
product(s)
Preliminary mining and processing rates
and plant product(s)
Fixed mining and proce
plant product(s)
Design Basis Preliminary using factored estimates
General design basis; preliminary
engineering drawings; trade-off studie
optional
Complete design
engineering drawing
complete; trade-off stud
Design Concept
Outline of design criteria and
specifications incorporating area/regional
climatic conditions
Design criteria established for
construction site incorporating known
site climatic conditions
Design specificatio
incorporating known
conditions
Process Description GeneralNarrative; 1 to 2% of detail engineering
complete
Detailed; 5 to 15% of d
complete
Layout
Approximate geographic locations and
site map; no general arrangement
drawings
Optimization of facility locations on site
map showing topography; simple
general arrangement drawings of major
equipment items
Exact geographic locati
with topography; de
arrangement drawings;
all facilities
Flow SheetsAssumed flow sheet from known
processes; simple block diagram
Establishment of probable flow sheet
from preliminary test work data; major
process flow diagrams; initial
determinations of material and heat
balances.
Detailed flow shee
comprehensive ben
program, detailed
diagrams for all proces
and heat balances finaliz
Civil Work
Rough topographic maps; no soil
conditions considered or quantities
estimated
Rough topographic maps; soil conditions
report for foundation determinations;
basic preliminary quantities
Detailed togographic
conditions identified
design, loadings and qua
Equipment Specifications Major equipment items listed
Preliminary listing of major equipment
items with initial sizings andspecifications
Complete listing of m
items with detailedspecifications
Architectural None Sketches Exterior elevations only
Piping/HVAC None Preliminary P&ID Major P&ID
Electrical Distribution None Basic one-line diagram All design one-line diagra
Motors None General descriptionDetailed list of maj
horsepower
Instrumentation None General description Detailed list of compone
INFRASTRUCTURE
FacilitiesGeneral overview with types of support
facilities described
All required support facilities identified,
sizes and quantities estimated
Facilities General overv
support facilities descr
support facilities ident
quantities estimated
support facilit ies ident
costed
Communications Communications requirements identified Communications systems study
Communications
requirements identified
systems study Commun
and standards known
PowerOverview of power availability and
regional unit power costs
Power sources and requirements
identified; unit costs obtained from power
source
Power requirements
derived from detailed e
unit costs from quotes
HYDROLOGY
Water Sources Estimated using regional data Preliminary hydrology study
Water Sources Estimat
data Preliminary hydrolo
water source identified
Water Usage Factored plant volume and unit costsRequired plant water volumes and unit
costs estimated
Requisite plant volume
derived from
engineering/geotechnica
Dewatering Dewatering parameters identified Dewatering parameters estimated Dewatering parametersplan defined
ENVIRONMENTAL
Setting
Preliminary evaluation of project setting
for potentially significant environmental or
permitting constraints for site data
Preliminary evaluation of the project's
impact on the environment; schedule of
environmental and/or other permitting
requirements; evaluate project setting
for potentially significant environmental
and/or permitting constraints from site
data
Characterization of a
potential impacts on t
finalize schedule of envi
other permitting require
project setting for pote
environmental and/
constraints
Data
Collect and review all available, existing
data for environmental studies
assessments or audits; regulatory
inspections, waste handling practices,
management plans, and all applicableenvironmental laws and regulations; no
social, training or safety programs
identified
Collect and review available
environmental data from existing
databases for environmental studies,
assessments or audits; regulatory
inspections,
waste handling practices; managementplans; and all applicable environmental
laws and regulations; plans; initiate
baseline data gatherin social, training,
and health /safety programs identified
All requisite environm
project are identified; s
analyses are complete
of the type, scope a
producing environm
government reports;gathering and evaluat
environmental condition
and health/safety progra
confirmed
EIS/EA None Draft EIS/EA initiatedDraft EIS/EA submitte
authorities
Reporting and PlansConceptual plans for managing any
identified environmental issues
Preparation of environmental plans and
monitoring programs; preliminary
sediment and erosion control plan;
conceptual reclamation plan; evaluation
of acid rock drainage; geotechnical
stability review of waste dumps and
tailings dam; preliminary impact
mitigation plan; preliminary spill andemergency response plan
Environmental characte
project design; environm
monitoring programs
sediment and erosion
management plan finali
hazardous wastes;
mitigation plan; geote
analysis of all major
reclamation plan; finalrock drainage; fina
emergency response pla
Monitoring Not consideredOutline of a site environmental
monitoring planComplete environmenta
PERMIT REQUIREMENTS General overviewComprehensive overview and listing of
required permits
Detailed evaluation o
environmental and
requirements and sched
operating license
-
7/29/2019 Tabla - Comparacion Estudios Ingenieria
3/6
PROJECT DEVELOPMENT SCHEDULE
Development Plan Development period and mine lifeestimated
Development period and overallschedule estimated; mine life
determined development schedule set
Detailed development scknown; development sch
Project Master Schedule
Estimated showing start and end of
construction; Gantt bar chart of major
work elements
Gantt bar chart with overall time frames;
schedule outline for detailed engineering;
QA/QC program outlined; preliminary
construction schedule; preliminary
project execution plan
Gantt bar chart with ove
and project flow pla
project level schedule
deliverables and detai
CP schedule; maj
identified; project control
QA/QC and safety pr
preliminary project pro
project design basis fina
CAPITAL COST ESTIMATE
Basis
Civil Structural
Architectural
Piping/HVAC
Electrical
Instrumentation
Construction Labor
Construction Labor Productivity
Material Volumes/Amounts
Material/Equipment Pricing
Infrastructure
ContractorsIncluded in unit cost or as a percentage of
total cost
Percentage of direct cost by cost area
for contractor; historic for subcontractors
Written quotes from
subcontractors
EPCMPercentage of estimated construction
costPercentage of detailed construction cost Calculated estimate from
Pricing
FOB mine site including all taxes and
duties
FOB mine site including all taxes and
duties
FOB mine site includin
duties
Owner's Historic estimateEstimate from experience factored for
similar project
Estimate prepared fro
based budget
Environmental Compliance Factored from historic experienceEstimate from experience factored for
similar project
Estimate prepared fro
based budget for design
specific permit requirem
Escalation Typically not consideredBased on company's current budget
percentageBased by cost area with
Working Capital Factored from historic experienceEstimate from experience factored for
similar project
Estimate prepared fro
based budget
Accuracy +-50% +/- 25% +/- 15%
Contingency 25% 15% 10%
OPERATING COST ESTIMATE
Basis Order-of-Magnitude estimateEstimates for unit rates and quantified
estimates with some factoring
Detailed from zero
minimal factoring
Operating Quantities General Quantified by estimates with somefactoring
Detailed estimates
Unit Costs Historic unit costs and factoringEstimates for labor, power and
consumables; some factoring
Letter quotes from v
factoring
Accuracy +/- 35% +/- 25% +/- 15%
ECONOMIC EVALUATION
Financial AnalysisPreliminary assessment of principal
economic parameters
Assessment of the principal economic
parameters
Full assessment of all p
parameters
Commodity Price(s)Estimated based on 3yr average
minimum
Estimated based on 3yr average
minimum
Estimated based on
minimum or detailed ma
Royalties and Taxes Preliminary assessment Preliminary analysisDetailed analysis with
opinion
Smelting, Refining and Freight Historic data Budgetary quotes Firm quotes
Cash Flow Analysis Simple cash flow Preliminary cash flow Formal, detailed cash flo
Economic Criteria Simple IRR and NPV (pre- and after-tax)Preliminary IRR and NPV (pre- and after
tax)
Fully defined IRR, N
payback period (pre- andSensitivity Analysis
Basic analysis to minimal amount of
project variables
Preliminary to selected key project
variables
Numerous analysis to
variables
RISK EVALUATION
Risk Assessment General overview Fatal flaw analysisFormal Monte Carlo a
flaw analysis
ProjectPreliminary overview of geology,
engineering, and environmental
Preliminary environmental, country,
permitting, technology, and business;
detailed geology and engineering
Detailed geology,
environmental, legal, pe
technology, business, an
Note 1: Internationally Recognized Standards include:
1. Canadian National Instrument 43-101 and 43-101 CP.
2. Australiasian Code for Reporting of Mineral Resources and Ore Reserves - prepared by the Joint Ore Reserve Committed (JORC)
3. U.S. Securities & Exchange Commission Industry Guide 7
4. SME Guide for Reporting Exploration Information, Mineral Resources and Mineral Reserves
Order-of-magnitude based historic data
or factoring
Estimates from historical factors,
percentages and vendor quotes based
on materials volumes
Detailed from estimates
to 25% complete; multip
-
7/29/2019 Tabla - Comparacion Estudios Ingenieria
4/6
DESCRIPTIONConceptual
(Scoping Study)
Prefea
StINTRODUCTION
Location, Topography and Climate
Site Location Map Basic map Preliminary map showing claims and bound
Topography Map Basic map showing site topography Prel iminary map showing site topographic f
Property Ownership Review of property lease Review of property lease; claims list provide
Current Status and History
Historical Chronology Basic presentation Full presentation
Past Production (if any) Basic presentation Full presentation
EXPLORATION AND GEOLOGY
Geologic Description
Review Preliminary review Preliminary site-specific analysis
Data Posting Review of available existing maps Detailed geologic mapping with cross-secti
Geologic Assessment Preliminary Basic assessment and review
Mineralogical Sampling & Analysis Limited sampling; preliminary assessment Preliminary mineralogical sampling and an
Drilling, Sampling and Assaying
Drill Hole Parameters Wide spaced drilling as appropriate Initial in-fills of wide spaced drilling; prelimin
Underground Drilling Review of existing data Drilling if accessible
Samples Preliminary; some outcrop samples Geophysical and geotechnical sampling; te
Drilling/Assay Data Preliminary check of existing drill hole dataCheck of drill holes (coordinates, elevation
vs vertical hole comparison; assay flow dia
Condemnation Drilling None None
RESOURCES AND RESERVES (Internationally Recognized Standards [see note 1])
Resources Indicated and Inferred Measured, Indicated, and Inferred
Geologic Controls Assumed Established from geologic data and/or vario
Tonnage Factors Preliminary assessment if available Preliminary analysis and determinations
Statistical Analysis Not performed Preliminary analysis and determinations
Geostatistical Analysis Not performed Preliminary analysis and determinations
Reserves Only resources estimated Proven and Probable
Calculation Parameters Usually no reserves are estimated Known or estimated
Cutoff Grade (COG) Equations Usually no reserves are estimated Calculated from floating cone parameters
MINING
Mining Method Assumed between open pit and underground Specific method identified
Open Pit Mine Plan
Pit Slopes Assumed Preliminary estimates by rock type and bas
Pit Design Simple outline of final pit Preliminary pit design from optimized analy
Waste Dumps Simple outline of final dumps Preliminary design for total waste tonnage;
Underground Mine Plan Assumed mining system; general outline of mine plan and developmentPreliminary mining system identified from
outline of mine plan and development inclu
Production Schedule Basic schedule based on assumed mine life Yearly and mine life ore and waste tonnage
Capital Cost Estimate Order-of-magnitude, factored or from similar operations Preliminary equipment list; budget or histor
Operating Cost Estimate Order-of-magnitude; factored or from similar operationsQuantif ied estimates for labor, power an
quotes for unit prices; some factoring
PROCESSING
Ore Sampling and Test WorkMinimal sampling; conduct lab bench scale process characterization tests on collected
samples (if available)
Sampling of core; preliminary bench scale
ore characterization and processing param
Process Engineering and Design
Production Rate and Product(s) First estimate of production rate and product(s) Preliminary mining and processing rates an
Design Basis Preliminary using factored estimates General design basis; preliminary engineer
Design ConceptOutline of design criteria and specif ications incorporating area/regional climatic
conditions
Design criteria established for construct
conditions
Process Description General Narrative; 1 to 2% of detail engineering com
Layout Approximate geographic locations and site map; no general arrangement drawings Optimization of facil ity locations on sitearrangement drawings of major equipment
Flow Sheets Assumed flow sheet from known processes; simple block diagramEstablishment of probable flow sheet from
flow diagrams; initial determinations of mat
Civil Work Rough topographic maps; no soil conditions considered or quantities estimatedRough topographic maps; soil conditions
preliminary quantities
Equipment Specifications Major equipment items listed Preliminary listing of major equipment item
Architectural None Sketches
Piping/HVAC None Preliminary P&ID
Electrical Distribution None Basic one-line diagram
Motors None General description
Instrumentation None General description
INFRASTRUCTURE
Facilities General overview with types of support facilities described All required support facilities identified, size
Communications Communications requirements identified Communications systems study
Power Overview of power availability and regional unit power costs Power sources and requirements identified
HYDROLOGY
Water Sources Estimated using regional data Preliminary hydrology study
Water Usage Factored plant volume and unit costs Required plant water volumes and unit cos
Dewatering Dewatering parameters identified Dewatering parameters estimated
ENVIRONMENTAL
SettingPreliminary evaluation of project setting for potentially significant environmental or
permitting constraints for site data
Prel iminary evaluation of the project's
environmental and/or other permitting r
potentially significant environmental and/or
Data
Collect and review all available, existing data for environmental studies assessments or
audits; regulatory inspections, waste handling practices, management plans, and all
applicable environmental laws and regulations; no social, training or safety programs
identified
Col lect and review available environm
environmental studies, assessments or aud
waste handling practices; management p
and regulations; plans; initiate baseline dat
programs identified
EIS/EA None Draft EIS/EA initiated
Reporting and Plans Conceptual plans for managing any identified environmental issues
Preparation of environmental plans and
and erosion control plan; conceptual r
drainage; geotechnical stability review of w
impact mitigation plan; preliminary spill and
Minimum Report Contents for Engineering Studies
-
7/29/2019 Tabla - Comparacion Estudios Ingenieria
5/6
DESCRIPTIONConceptual
(Scoping Study)
INTRODUCTION
Location To o ra h and Climate
Site Location Map Basic map Preliminary map showing
Topography Map Basic map showing s ite topography Preliminary map showing
Property Ownership Review of property lease Review of property lease;
Current Status and History
Historical Chronology Basic presentation Full presentation
Past Production (if any) Basic presentation Full presentation
EXPLORATION AND GEOLOGY
Geologic Description
Review Preliminary review Preliminary site-specific aData Posting Review of available existing maps Detailed geologic mapping
Geologic Assessment Preliminary Basic assessment and re
Mineralogical Sampling & Analysis Limited sampling; preliminary assessment Preliminary mineralogical
Drilling, Sampling and Assaying
Drill Hole Parameters Wide spaced drilling as appropriate Initial in-fills of wide space
Underground Drilling Review of existing data Drilling if accessible
Samples Preliminary; some outcrop samples Geophysical and geotech
Drilling/Assay Data Preliminary check of existing drill hole dataCheck of drill holes (coor
vertical hole comparison;
Condemnation Drilling None None RESOURCES AND RESERVES (Internationally Recognized Standards [see note 1])
Resources Indicated and Inferred Measured, Indicated, and
Geologic Controls Assumed Established from geologic
Tonnage Factors Preliminary assessment if available Preliminary analysis and d
Statistical Analysis Not performed Preliminary analysis and d
Geostatistical Analysis Not performed Preliminary analysis and d
Reserves Only resources estimated Proven and Probable
Calculation Parameters Usually no reserves are estimated Known or estimated
Cutoff Grade (COG) Equations Usually no reserves are estimated Calculated from floating c
MINING
Mining Method Assumed between open pit and underground Specific method identified
Open Pit Mine Plan
Pit Slo es Assumed Preliminary estimates by
Pit Design Simple outline of final pit Preliminary pit design from
Waste Dumps Simple outline of final dumps Preliminary design for tota
Underground Mine Plan Assumed mining system; general outline of mine plan and development Preliminary mining systeoutline of mine plan and d
Production Schedule Basic schedule based on assumed mine life Yearly and mine life ore a
Capital Cost Estimate Order-of-magnitude, factored or from similar operations Preliminary equipment list
Operating Cost Estimate Order-of-magnitude; factored or from similar operationsQuantified estimates for l
for unit prices; some facto
PROCESSING
Ore Sampling and Test WorkMinimal sampling; conduct lab bench scale process characterization tests on collected
samples (if available)
Sampling of core; prelimin
characterization and proc
Process Engineering and Design
Production Rate and Product(s) First estimate of production rate and product(s) Preliminary mining and pr
Design Basis Preliminary using factored estimates General design basis; pre
Design Concept Outline of design criteria and specifications incorporating area/regional climatic conditionsDesign criteria establis
conditions
Process Description General Narrative; 1 to 2% of deta
Layout Approximate geographic locations and site map; no general arrangement drawingsOptimizat ion of facility
arrangement drawings of
Flow Sheets Assumed flow sheet from known processes; simple block diagramEstablishment of probabl
diagrams; initial determina
Civil Work Rough topographic maps; no soil conditions considered or quantities estimatedRough topographic map
preliminary quantities
Equipment Specifications Major equipment items listed Preliminary listing of majo
Architectural None Sketches
Piping/HVAC None Preliminary P&ID
Electrical Distribut ion None Basic one-line diagram
Motors None General description Instrumentation None General description
INFRASTRUCTURE
Facilities General overview with types of support facilities described All required support facilit
Communications Communications requirements identified Communications systems
Power Overview of power availability and regional unit power costs Power sources and requi
Minimum Report Contents for Engineering
-
7/29/2019 Tabla - Comparacion Estudios Ingenieria
6/6
DESCRIPTION Conceptual (Scoping Study) Prefeasibility
HYDROLOGY
Water Sources Estimated using regional data Preliminary hydrology stud
Water Usage Factored plant volume and unit costs Required plant water volu
Dewatering Dewatering parameters identified Dewatering parameters es
ENVIRONMENTAL
SettingPreliminary evaluation of project setting for potentially significant environmental or
permitting constraints for site data
Preliminary evaluation o
environmental and/or o
potentially significant envi
Data
Collect and review all available, existing data for environmental studies assessments oraudits; regulatory inspections, waste handling practices, management plans, and all
applicable environmental laws and regulations; no social, training or safety programs
identified
Collect and review av
environmental studies, as
waste handling practices;
regulations; plans; initiat
programs identified
EIS/EA None Draft EIS/EA initiated
Reporting and Plans Conceptual plans for managing any identified environmental issues
Preparation of environme
erosion control plan; co
geotechnical stability rev
mitigation plan; preliminar
Monitoring Not considered Outline of a site environm
PERMIT REQUIREMENTS General overview Comprehensive overview
DESCRIPTION Conceptual (Scoping Study) PrefeasibilitPROJECT DEVELOPMENT SCHEDULE
Development Plan Development period and mine life estimatedDevelopment period and
schedule set
Project Master Schedule Estimated showing start and end of construction; Gantt bar chart of major work elements
Gantt bar chart with ov
QA/QC program outline
execution plan
CAPITAL COST ESTIMATE
Basis
Civil Structural
Architectural
Piping/HVAC
Electrical
Instrumentation
Construction Labor
Construction Labor Productivity
Material Volumes/Amounts
Material/Equipment Pricing
Infrastructure
Contractors Included in unit cost or as a percentage of total cost Percentage of direct cost
EPCM Percentage of estimated construction cost Percentage of detailed co
Pricing FOB mine site including all taxes and duties FOB mine site including a
Owner's Historic estimate Estimate from experience
Environmental Compliance Factored from historic experience Estimate from experience
Escalation Typically not considered Based on company's curr
Working Capital Factored from historic experience Estimate from experience
Accurac +-50%
Contingency 25%
OPERATING COST ESTIMATEBasis Order-of-Magnitude estimate Estimates for unit rates an
Operating Quantities General Quantified by estimates w
Unit Costs Historic unit costs and factoring Estimates for labor, powe
Accuracy +/- 35%
ECONOMIC EVALUATION
Financial Anal sis Preliminary assessment of principal economic parameters Assessment of the princip
Commodity Price(s) Estimated based on 3yr average minimum Estimated based on 3yr a
Royalties and Taxes Preliminary assessment Preliminary analysis
Smeltin Refinin and Frei ht Historic data Budgetary quotes
Cash Flow Analysis Simple cash flow Preliminary cash flow
Economic Criteria Simple IRR and NPV (pre- and after-tax) Preliminary IRR and NPV
Sensitivity Analysis Basic analysis to minimal amount of project variables Preliminary to selected ke
RISK EVALUATION
Risk Assessment General overview Fatal flaw analysis
Project Preliminary overview of geology, engineering, and environmental Preliminary environmentageology and engineering
Note 1: Internationally Recognized Standards include:
1. Canadian National Instrument 43-101 and 43-101 CP.
2. Australiasian Code for Reporting of Mineral Resources and Ore Reserves - prepared by the Joint Ore Reserve Committed (JORC)
3. U.S. Securities & Exchange Commission Industry Guide 7
4. SME Guide for Reporting Exploration Information, Mineral Resources and Mineral Reserves
Order-of-magnitude based historic data or factoringEstimates from historical
volumes
Minimum Report Contents for Engineering Studies (fuente Pinc