Lecture 1-3 MetE 197

download Lecture 1-3 MetE 197

of 46

Transcript of Lecture 1-3 MetE 197

  • 8/13/2019 Lecture 1-3 MetE 197

    1/46

    Lecture No. 1

  • 8/13/2019 Lecture 1-3 MetE 197

    2/46

    Role of mining and processing of rawmaterials

    Diversification of multinational miningcompanies grass roots exploration tosmaller resource companies

    Level of exploration declined in 1990’s due todepressed metal prices and availability offunds

  • 8/13/2019 Lecture 1-3 MetE 197

    3/46

  • 8/13/2019 Lecture 1-3 MetE 197

    4/46

    Exploration – successful exploration willresult in dramatic increase in value of the

    company Definition – quantity and quality of resource Feasibility studies – economic viability of the

    resource Development – if project is justified Extraction – taking the ore from the orebody

    and separating from the waste rock

  • 8/13/2019 Lecture 1-3 MetE 197

    5/46

    Processing – mineral processing,beneficiation, extractive processes

    Refining – further processing to producesaleable commodity

  • 8/13/2019 Lecture 1-3 MetE 197

    6/46

    Volatility of share prices Exploration – necessity, therefore higher risk

    Finite reserves – definite volume, finite life

    Proven Reserve Probable Reserve Measure Resource

    Tonnage: 2 million Tonnage: 3 million Tonnage: 8 million

    Grade: 1.2% Cu Grade: 1.0% Cu Grade: 0.8% Cu

    Cu: 24,000MT Cu: 30,000MT Cu: 64,000 MT

  • 8/13/2019 Lecture 1-3 MetE 197

    7/46

    Great effect on the value of the company Reliance on International Commodity prices

    Dependent on demand and economicconditions globally

    Effect of exchange rate – most prices arequoted in US$

  • 8/13/2019 Lecture 1-3 MetE 197

    8/46

    Exploration – funds are needed to define anddelineate reserves – speculative.

    Economics of scale – continuing decline ofthe quality of ore reserves – move largevolume of material

    Isolation – remote location of mineralreserves result in high cost of infrastructure

    Power and water – requirement in all miningoperations

  • 8/13/2019 Lecture 1-3 MetE 197

    9/46

    Ensure minimum impact on environment Environmental impact statement (EIS)

    Processing Water consumption

    Carbon dioxide emission

    SO2 emissions Decommissioning

  • 8/13/2019 Lecture 1-3 MetE 197

    10/46

    Surface owners Indigenous people

    Local government units

  • 8/13/2019 Lecture 1-3 MetE 197

    11/46

    Lecture No. 2

  • 8/13/2019 Lecture 1-3 MetE 197

    12/46

    Analysis of financial data Forecast the future financial performance of

    the company

  • 8/13/2019 Lecture 1-3 MetE 197

    13/46

    Capital Costs Revenue

    Operating Costs Other costs Depreciation Taxation Cash flow

  • 8/13/2019 Lecture 1-3 MetE 197

    14/46

    Developing access to the orebody Mining equipment

    Processing plant Support infrastructure – power

    station/transmission, water source, airports,housing, roads, etc.

    Replacement of old equipment Working capital

  • 8/13/2019 Lecture 1-3 MetE 197

    15/46

    Price of product x quantity sold Importance of forecasting of prices

    Exchange rate Production schedule Marketing costs plus insurance and

    transportation must be deducted

  • 8/13/2019 Lecture 1-3 MetE 197

    16/46

    Day to day cost of production and processing Include: Consumables – chemicals & explosives

    Wages

    Transportation

    Power Commonly quoted in cost/ton or ore mined or

    cost/ton ore milled Total cost usually in cost/production: i.e. US$/lb

    Cu produced

  • 8/13/2019 Lecture 1-3 MetE 197

    17/46

    State royalties Leasing costs

    Interest or financing costs

  • 8/13/2019 Lecture 1-3 MetE 197

    18/46

    Non-cash item Recovery of capital expenditure over the life

    of the project for tax purposes Defines the “book” value of capital or assets

    of the company

  • 8/13/2019 Lecture 1-3 MetE 197

    19/46

    Varying rates Varies from country to country

    Royalties from the sale of mineral products iscalled “excise tax” 

  • 8/13/2019 Lecture 1-3 MetE 197

    20/46

    Cash needed to get the project into operation(negative)

    Cash from the project the owners get afterdeducting all costs (positive)

  • 8/13/2019 Lecture 1-3 MetE 197

    21/46

  • 8/13/2019 Lecture 1-3 MetE 197

    22/46

    Lecture No. 3

  • 8/13/2019 Lecture 1-3 MetE 197

    23/46

    Feasible – practicable and possible In resource industry

    Physical aspects – i.e. reserves, location Economic aspects – cost, metal prices

    Risk of failure vs. financial reward Initially, inferred from previous success “back of the envelope” valuation 

  • 8/13/2019 Lecture 1-3 MetE 197

    24/46

    Best mine configuration based on currentknowledge of the orebody

    An estimate of likely operating and capitalcosts Initial metallurgical studies (bench tests) to

    determine likely mill design and likelyrecovery

    Availability of power, water, transport andinfrastructure requirements

  • 8/13/2019 Lecture 1-3 MetE 197

    25/46

    Environmental issues Product markets and future commodity price

    profile Preliminary financial model

  • 8/13/2019 Lecture 1-3 MetE 197

    26/46

    Grade Tonnage

    Recovery Mining rate Open cut or underground mining Capital cost Operating cost

  • 8/13/2019 Lecture 1-3 MetE 197

    27/46

    Studies Cost Time Accuracy

    Scoping $100,000s months Low

    Pre-feasibility $millions months Fair

    Final/BankableFeasibility &EngineeringDesign

    $10 millions Year (s) Good

    ConstructionphaseDetailedengineering

    Variable Year(s) Very Good

  • 8/13/2019 Lecture 1-3 MetE 197

    28/46

  • 8/13/2019 Lecture 1-3 MetE 197

    29/46

    Summary and recommendations Mine location and description

    Development plan Plant product and capacity

  • 8/13/2019 Lecture 1-3 MetE 197

    30/46

    Topographical maps Soil/geology reports

  • 8/13/2019 Lecture 1-3 MetE 197

    31/46

    Geology Resource and reserves

    Geo-technical Mine plan Mine production schedule Mine equipment Mine services

  • 8/13/2019 Lecture 1-3 MetE 197

    32/46

    Site plan Process flow sheets

    Energy balance Material balance Heat balance Major equipment Minor equipment General arrangement drawings Detailed structural drawings

  • 8/13/2019 Lecture 1-3 MetE 197

    33/46

    Building and piping drawings Electrical drawings

    Management systems Equipment vendors

  • 8/13/2019 Lecture 1-3 MetE 197

    34/46

    Environmental policy and plan Environmental risks

    Health and safety risks Environmental impact assessment Environmental permits issued Environmental monitoring plan Statutory requirements Closure plan

  • 8/13/2019 Lecture 1-3 MetE 197

    35/46

    Project plan Project business systems Cash flow forecast Construction work plan Construction contract configuration Construction schedule

    Future work Labor rates Labor productivity Construction equipment

  • 8/13/2019 Lecture 1-3 MetE 197

    36/46

    Major equipment bids Minor equipment bids

    Site preparation, earthwork Building foundations Equipment foundations Structural steel Cladding Architectural Mechanical

  • 8/13/2019 Lecture 1-3 MetE 197

    37/46

    Staffing levels Labor rates

    Consumable/utility consumption Maintenance supplies Spares Power and water unit costs Fuel unit costs Supplies and reagents unit costs Transport and logistics

  • 8/13/2019 Lecture 1-3 MetE 197

    38/46

    Working capital Sustaining/replacement capital

    Training Ramp up Insurances Escalation Foreign currency provisions Target accuracy

  • 8/13/2019 Lecture 1-3 MetE 197

    39/46

    Determine the profits and cash flow for theequity holders

    Valuation methods are employed todetermine financial viability Sensitivity and probability analysis consider

    issues such as project risk

  • 8/13/2019 Lecture 1-3 MetE 197

    40/46

    Financing for capital expenditures Assets of the project are used as collateral,

    not the assets of the borrower

  • 8/13/2019 Lecture 1-3 MetE 197

    41/46

  • 8/13/2019 Lecture 1-3 MetE 197

    42/46

    Cash flow should show that there are enoughfunds for payment of the interest

    Debt service coverage ratio Compare present value of forecast cash flow

    available for financing with the principaloutstanding

    Life of the project debt service coverage ratio

  • 8/13/2019 Lecture 1-3 MetE 197

    43/46

    Advantages:

    Provides capital allowing the corporate to own

    multiple projects

    Relatively low cost finance

    Worldwide capital market

  • 8/13/2019 Lecture 1-3 MetE 197

    44/46

    Disadvantages: Longer transaction time

    Higher fixed cost with restrictive covenants Extensive hedging to mitigate commodity

    price risk Increased level of due diligence and frequent

    monitoring of performance Default with the lender gaining ownership of

    the asset

  • 8/13/2019 Lecture 1-3 MetE 197

    45/46

    Reserves Markets and commodity pricing

    Construction time and costs Operational costs Political, labor and environmental issues Ownership, tenure and tax

  • 8/13/2019 Lecture 1-3 MetE 197

    46/46

    Debt service coverage ratio – ability for theproject to repay debt periodically

    Cash flow available for debt service (CFADS)

    divided by

    Debt service, where debt service = principal plus

    debt

    If DSCR 1.2