How do development, production, grade, recovery, and commodity-price assumptions shape the mine plan?
Model profile
Graphite Small-Scale Mining
An artisanal and small-scale graphite mining enterprise or cooperative, set up for Tanzania or for any country you choose, and shipped as a bankable case: a weathered flake graphite deposit floated in the owner's 250 tonne-a-day plant on a renewed licence and a development-bank loan, the concentrate sold to an exporter. Other cases: an offtake at a higher payable share, selective mining, the first 150 tonne-a-day design, the concentrate exported directly, a smaller plant, a cooperative paying a toll flotation plant, or hand-sorted ore sold to a processor. Tested the way a buyer and a lender would: the carbon grade, the flake sizes and the price each fetches, what the buyer pays, the royalty and the final withholding tax, the rains, and debt sized on the cash the mine can service.
Decision scope
Questions this model helps you examine
What capital, operating cost, closure provision, and financing structure are required?
How do price, grade, recovery, cost, and schedule downside cases affect investment returns?
Model capabilities
What this model includes
The profile below is generated from the same catalogue and workspace definitions used by the application.
- A 10-year mine plan in per cent total graphitic carbon, with a resource limit and an exploration stage
- Weathered free-dig ore or fresh rock, with drilling and blasting only for fresh rock
- Own flotation plant, toll flotation, or hand-sorted ore sold to a processor
- A concentrate priced as a basket of flake sizes, paid at a payable share, less grade and element penalties
- Plant power, flotation reagents, drying and bagging
- Plant, equipment and crews that scale with throughput
- A researched Tanzania profile with the primary mining licence rules and the 2% final withholding tax, and every other country selectable
- Local-currency costs, and a local-currency or dollar loan
- Debt sized and sculpted on cash available for debt service, with a reserve, a lease and a buyer prepayment
- Cost per tonne of concentrate, break-even basket price, payability and grade
- A basket price deck, named scenarios, an NPV tornado and a Monte Carlo
Build the case
Inputs and workspaces
- CasesLoad a country, or the bankable, offtake, selective mining, 150 t/day, direct export, smaller plant, toll cooperative or ore sale case
- Mine and costsCountry, licence type, term and area, geology and resource, throughput, the reference carbon grade, unit costs, power, diesel and the local currency
- Mine planThroughput, utilisation, strip ratio, grade, recovery, price and payability by year
- SeasonalityHow the rains spread production across the months
- Processing and saleOwn flotation plant, toll plant or ore sale, product grade, buyer terms and settlement
- Flake sizes, penalties, royalty and routeThe flake size distribution and prices, element penalties, the sliding-scale royalty and the ore and product route
- Staff and operating costsPositions, pay, start dates, sizing from productivity, and other operating expenses
- Initial costs and assetsStart-up costs, the four asset classes, replacement and the lease share
- FinancingEquity, the start-up gap, the term loan and its sizing, the reserve, the lease and the prepayment
- Fiscal and permitsTax regime, final withholding tax, royalty, levies, the rehabilitation fund and VAT
- Valuation and riskCost of capital, rehabilitation and closure, the basket price deck and the Monte Carlo
- Due diligenceLicence, environment, water, flotation testwork, offtake, resource, responsible sourcing, safety and the community agreement
Review the result
Outputs and analysis
- Project NPVUSD, at WACC
- Project IRRUnlevered, after tax
- WACCDiscount rate
- PaybackMonths
- Minimum DSCRYears principal is repaid
- Loan life cover ratioAt first repayment
- Term loanSized by the model
- Total fundingAll sources
- 19 additional metrics in the workspace
- Financial statementsDetailed schedules
- Lender view, mine plan, funding & valuationDetailed schedules
- Risk & analyticsDetailed schedules
Designed for review
Who this model is for
- Mine owners and project sponsors
- Technical and operating teams
- Financial advisers
- Investors and lenders
Governed evidence
The review trail stays with the result.
Each completed calculation preserves the model version, saved inputs, reporting-currency snapshot, immutable run, and result fingerprint used for its reports.
- Version-controlled calculation logic
- Saved assumptions and scenarios
- Immutable calculation runs
- Reporting context preserved in exports
Ready to explore the case?