Jr Mining CalculatorNote sure how well this will post
This id's a number of the elements involved in determining a companys value: All the stuff we talk about ends up here directly or indirectly.
Key lines are grades, recovery, processing TPD, expected long term prices and operating and capital costs.
I've plugged a number of assumptions in to get started. Use the last column for the Share price - each of the columns is 1 year of the mine life. I'm using 4000 tpd for 10 years here (15 million tonnes)
These assumptions give me 40c per share for ex: I offer it so you can draw your own conclusions
If you want a copy inbox me with your email address
| Year | | | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Resource (in tonnes) | | 10000000 | 10000000 | 10000000 | 10000000 | 10000000 | 10000000 | 10000000 | 10000000 | 10000000 | 10000000 |
| Grade - Zn (%) | | 3.50% | 3.50% | 3.50% | 3.50% | 3.50% | 3.50% | 3.50% | 3.50% | 3.50% | 3.50% |
| Grade - Pb (%) | | 1.00% | 1.00% | 1.00% | 1.00% | 1.00% | 1.00% | 1.00% | 1.00% | 1.00% | 1.00% |
| Grade - Cu (%) | | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
| Grade - Ni (%) | | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
| Grade - Ag (g/tonne) | | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Grade - Au (g/tonne) | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Recovery Factor (%) | | 87.00% | 87.00% | 87.00% | 87.00% | 87.00% | 87.00% | 87.00% | 87.00% | 87.00% | 87.00% |
| | | | | | | | | | | |
| Mill Processing (tpd) | | 4000 | 4000 | 4000 | 4000 | 4000 | 4000 | 4000 | 4000 | 4000 | 4000 |
| Mine Life (years) | | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Operating Days/Yr | | 360 | 360 | 360 | 360 | 360 | 360 | 360 | 360 | 360 | 360 |
| % of Tonnes Consumed | 90.00% | 90.00% | 90.00% | 90.00% | 90.00% | 90.00% | 90.00% | 90.00% | 90.00% | 90.00% |
| Long-Term Zn Price (US$/lb) | $ 0.85 | $ 0.85 | $ 0.85 | $ 0.85 | $ 0.85 | $ 0.85 | $ 0.85 | $ 0.85 | $ 0.85 | $ 0.85 |
| Long-Term Pb Price (US$/lb) | $ 0.80 | $ 0.80 | $ 0.80 | $ 0.80 | $ 0.80 | $ 0.80 | $ 0.80 | $ 0.80 | $ 0.80 | $ 0.80 |
| Long-Term Cu Price (US$/lb) | $ 1.80 | $ 1.80 | $ 1.80 | $ 1.80 | $ 1.80 | $ 1.80 | $ 1.80 | $ 1.80 | $ 1.80 | $ 1.80 |
| Long-Term Ni Price (US$/lb) | $ 2.00 | $ 2.00 | $ 2.00 | $ 2.00 | $ 2.00 | $ 2.00 | $ 2.00 | $ 2.00 | $ 2.00 | $ 2.00 |
| Long-Term Ag Price (US$/oz) | $ 11.00 | $ 11.00 | $ 11.00 | $ 11.00 | $ 11.00 | $ 11.00 | $ 11.00 | $ 11.00 | $ 11.00 | $ 11.00 |
| Long-Term Au Price (US$/oz) | $ 600.00 | $ 600.00 | $ 600.00 | $ 600.00 | $ 600.00 | $ 600.00 | $ 600.00 | $ 600.00 | $ 600.00 | $ 600.00 |
| | | | | | | | | | | | | |
| Value | Zinc | | $ 67,087,440 | $ 67,087,440 | $ 67,087,440 | $ 67,087,440 | $ 67,087,440 | $ 67,087,440 | $ 67,087,440 | $ 67,087,440 | $ 67,087,440 | $ 67,087,440 |
| | Lead | | $ 18,040,320 | $ 18,040,320 | $ 18,040,320 | $ 18,040,320 | $ 18,040,320 | $ 18,040,320 | $ 18,040,320 | $ 18,040,320 | $ 18,040,320 | $ 18,040,320 |
| | Copper | | $ - | $ - | $ - | $ - | $ - | $ - | $ - | $ - | $ - | $ - |
| | Nickel | | $ - | $ - | $ - | $ - | $ - | $ - | $ - | $ - | $ - | $ - |
| | Silver | | $ 10,879,579 | $ 10,879,579 | $ 10,879,579 | $ 10,879,579 | $ 10,879,579 | $ 10,879,579 | $ 10,879,579 | $ 10,879,579 | $ 10,879,579 | $ 10,879,579 |
| | Gold | | $ - | $ - | $ - | $ - | $ - | $ - | $ - | $ - | $ - | $ - |
| Subtotal | | | $ 96,007,339 | $ 96,007,339 | $ 96,007,339 | $ 96,007,339 | $ 96,007,339 | $ 96,007,339 | $ 96,007,339 | $ 96,007,339 | $ 96,007,339 | $ 96,007,339 |
| | | | | | | | | | | | | |
| Average Oper. Cost ($/Tonne) | $ 45.00 | $ 45.00 | $ 45.00 | $ 45.00 | $ 45.00 | $ 45.00 | $ 45.00 | $ 45.00 | $ 45.00 | $ 45.00 |
| Operating Cost (annual) | $ 64,800,000 | $ 64,800,000 | $ 64,800,000 | $ 64,800,000 | $ 64,800,000 | $ 64,800,000 | $ 64,800,000 | $ 64,800,000 | $ 64,800,000 | $ 64,800,000 |
| Initial Capital Costs | | $ 75,000,000 | $ - | $ - | $ - | $ - | $ - | $ - | $ - | $ - | $ - |
| Sustaining Capital ($/Yr) | $ - | $ 7,500,000 | $ 7,500,000 | $ 7,500,000 | $ 7,500,000 | $ 7,500,000 | $ 7,500,000 | $ 7,500,000 | $ 7,500,000 | $ 7,500,000 |
| | | | | | | | | | | | | |
| SubTotal | | | -$ 43,792,661 | $ 23,707,339 | $ 23,707,339 | $ 23,707,339 | $ 23,707,339 | $ 23,707,339 | $ 23,707,339 | $ 23,707,339 | $ 23,707,339 | $ 23,707,339 |
| | | | | | | | | | | | | |
| Discount Rate (%) | | 15% | 15% | 15% | 15% | 15% | 15% | 15% | 15% | 15% | 15% |
| | | | | | | | | | | |
| NPV | | | -$ 38,080,575 | $ 17,926,154 | $ 15,587,960 | $ 13,554,748 | $ 11,786,737 | $ 10,249,337 | $ 8,912,467 | $ 7,749,971 | $ 6,739,105 | $ 5,860,092 |
| Cumulative NPV (Mkt Cap) | -$ 38,080,575 | -$ 20,154,421 | -$ 4,566,460 | $ 8,988,288 | $ 20,775,025 | $ 31,024,362 | $ 39,936,829 | $ 47,686,800 | $ 54,425,905 | $ 60,285,997 |
| Diluted # Shares | | 150,000,000 | 150,000,000 | 150,000,000 | 150,000,000 | 150,000,000 | 150,000,000 | 150,000,000 | 150,000,000 | 150,000,000 | 150,000,000 |
| Value/Share | | -$ 0.25 | -$ 0.13 | -$ 0.03 | $ 0.06 | $ 0.14 | $ 0.21 | $ 0.27 | $ 0.32 | $ 0.36 | $ 0.40 |