(PEA) for the Lahtojoki diamond deposit 2025 Base, Double, Triple18 Jun 2025 13:19
TO BE CLEAR THIS IS ONLY MY WORKINGS, NOTHING TO DO WITH KDR
To calculate the profit for each scenario in the updated Preliminary Economic Assessment (PEA) for the Lahtojoki diamond deposit, I’ll define profit as the total revenue minus total costs (operating costs, capital costs, royalties, and taxes) over the mine’s 9-year life, without discounting (i.e., undiscounted net cash flow). Using the calculations from the previous response, here are the profits for each scenario:
Assumptions Recap
• Revenue: Based on US$120/carat for standard diamonds, or with 3% pink diamonds at US$2,000/carat.
• Operating Costs (OPEX): US$168 million (5.6 million tonnes × US$30/tonne).
• Capital Costs (CAPEX): US$80 million (base), US$90 million (double), US$100 million (triple).
• Royalties: 2% of revenue.
• Taxes: 20% of taxable income (revenue – OPEX – royalties – depreciation).
• Mine Life: 9 years.
Profit Calculations
• Base Case (Standard, 2.11M Carats):
• Revenue: US$253.2 million
• OPEX: US$168 million
• CAPEX: US$80 million
• Royalties: US$5.06 million
• Taxes: Negligible due to depreciation (~US$0.01 million/year × 9 = ~US$0.09 million)
• Total Costs: US$168M + US$80M + US$5.06M + US$0.09M = US$253.15M
• Profit: US$253.2M – US$253.15M = US$0.05 million
• Base Case (3% Pink Diamonds, 2.11M Carats):
• Revenue: US$371.9 million
• OPEX: US$168 million
• CAPEX: US$80 million
• Royalties: US$7.44 million
• Taxes: ~US$0.09 million (same as base)
• Total Costs: US$168M + US$80M + US$7.44M + US$0.09M = US$255.53M
• Profit: US$371.9M – US$255.53M = US$116.37 million
• Double Case (Standard, 4.22M Carats):
• Revenue: US$506.4 million
• OPEX: US$168 million
• CAPEX: US$90 million
• Royalties: US$10.13 million
• Taxes: US$5.41 million/year × 9 = US$48.69 million
• Total Costs: US$168M + US$90M + US$10.13M + US$48.69M = US$316.82M
• Profit: US$506.4M – US$316.82M = US$189.58 million
• Double Case (3% Pink Diamonds, 4.22M Carats):
• Revenue: US$743.9 million
• OPEX: US$168 million
• CAPEX: US$90 million
• Royalties: US$14.88 million
• Taxes: ~US$15.41 million/year × 9 = US$138.69 million (adjusted for higher taxable income)
• Total Costs: US$168M + US$90M + US$14.88M + US$138.69M = US$411.57M
• Profit: US$743.9M – US$411.57M = US$332.33 million
• Triple Case (Standard, 6.33M Carats):
• Revenue: US$759.6 million
• OPEX: US$168 million
• CAPEX: US$100 million
• Royalties: US$15.19 million
• Taxes: US$10.81 million/year × 9 = US$97.29 million
• Total Costs: US$168M + US$100M + US$15.19M + US$97.29M = US$380.48M
• Profit: US$759.6M – US$380.48M = US$379.12 million
• Triple Case (3% Pink Diamonds, 6.33M Carats):
• Revenue: US$1,115.8 million
• OPEX: US$168 million
• CAPEX: US$100 million
• Royalties: US$22.32 million
• Taxes: ~US$25.41 million/year × 9 = US$228.69 million (adjusted for higher