Data as at 18 October 2026 · from Western Australian Government registers and open data
Western Australian mining project · Care and Maintenance
Lake Johnston / Forrestania
Lake Johnston / Forrestania is a Western Australian mining project (in care and maintenance) in MINEDEX, owned by Forrestania Resources Limited 100%; Poseidon Nickel Pty Limited, on 11 current tenements held by POSEIDON NICKEL PTY LIMITED. Commodities: Nickel, Cobalt, Copper.
- MINEDEX project
- J01666
- Stage
- Care and Maintenance
- Owners (MINEDEX)
- Forrestania Resources Limited 100%; Poseidon Nickel Pty Limited
- Tenement holders
- POSEIDON NICKEL PTY LIMITED
- Parent groups
- Maritana Minerals
- Commodities
- Nickel, Cobalt, Copper
- Rehabilitation liability
- Its rehabilitation liability is in the MCF Mining Index (subscribers): the Mining Rehabilitation Fund estimate, its trend since 2014, company provisions and closure-plan costs
Resources and reserves
| Commodity | Resources | Reserves | Latest estimate |
|---|---|---|---|
| Nickel | 3.50 Mt at 1.5%, 52 kt contained | — | 17 March 2015 |
Current MINEDEX estimates over all the project's sites; resources may include reserves. MINEDEX (DMPE), CC BY 4.0.
Mine closure plans
| Site | Operator | Latest plan approved | Plan (PDF on GeoDocs) | Closure year |
|---|---|---|---|---|
| Lake Johnston Operations | Norilsk Nickel Lake Johnston Pty Limited, Lake Johnston Ltd | 16 July 2015 | Lake Johnston Operations Mine Closure Plan 2014 | |
| MINE CLOSURE PLAN - LAKE JOHNSTON / POSEIDON PROJECT - J01666 | Poseidon Nickel LIMITED |
Tenements
| Tenement | Holder | Status | Expires | Commodities | Hectares |
|---|---|---|---|---|---|
| M 63/163 Mining lease | POSEIDON NICKEL PTY LIMITED | Granted | 26 October 2029 | Nickel, Cobalt, Copper | 928 |
| M 63/282 Mining lease | POSEIDON NICKEL PTY LIMITED | Granted | 15 March 2037 | Nickel, Cobalt, Copper | 976 |
| M 63/283 Mining lease | POSEIDON NICKEL PTY LIMITED | Granted | 15 March 2037 | Nickel, Copper, Cobalt | 982 |
| M 63/284 Mining lease | POSEIDON NICKEL PTY LIMITED | Granted | 10 August 2036 | Nickel, Cobalt | 36 |
| M 63/524 Mining lease | POSEIDON NICKEL PTY LIMITED | Granted | 22 June 2030 | Nickel | 966 |
| G 63/5 General purpose lease | POSEIDON NICKEL PTY LIMITED | Granted | 13 May 2028 | Nickel, Cobalt | 9 |
| G 63/8 General purpose lease | POSEIDON NICKEL PTY LIMITED | Granted | 5 December 2037 | Nickel, Cobalt | 81 |
| L 63/51 Miscellaneous licence | POSEIDON NICKEL PTY LIMITED | Granted | 6 August 2042 | Nickel, Cobalt | 342 |
| L 63/52 Miscellaneous licence | POSEIDON NICKEL PTY LIMITED | Granted | 1 August 2042 | Nickel, Cobalt | 254 |
| L 63/55 Miscellaneous licence | POSEIDON NICKEL PTY LIMITED | Granted | 3 March 2046 | Nickel, Cobalt | 25 |
| L 63/57 Miscellaneous licence | POSEIDON NICKEL PTY LIMITED | Granted | 7 March 2027 | Nickel, Cobalt | 1 |
MCF Mining Approvals Index