Approach
Both the EDP and Main Plant /KKV phases of the project are brown-field expansions of the existing heap leach-solvent extraction-electrowinning operation.
The project execution is based on an Engineering, Procurement and Construction Management (EPCM) philosophy with engineering managed by Electrowin Pty Ltd and NeuBau Pty Ltd and procurement and construction managed by Finders.
Resindo, an Indonesian EPCM contractor will provide inspection and project controls support.
Karridale, a Western Australian contractor, will provide construction management support at site for the re-installation of theWhim Creek plant.
PT SDV Logistics are engaged to relocate the Whim Creek SX-EW Plant from Western Australia and to consolidate the other equipment and materials in Surabaya for transport to Wetar.
Specialist contractors will be used for structural-mechanical-piping (PT Supra Surya Indo) and electrical and instrumentation (E&I) installation (O'Donnell Griffin Indonesia, ODG). ODG was responsible for E&I on the demonstration plant.
Commissioning engineers will be provided by Australian company PPM Solutions which was responsible for commissioning of the original demonstration plant.
Schedule
The total construction project duration is 24 months. Assuming timely project finance and permitting, first cathode production from the EDP is 10 months from project start while first cathode production from the Main Plant is scheduled 20 months from project start.
Key milestone dates from the project schedule are:
| Q3 2011 |
Q4 2011 |
Q1 2012 |
Q2 2012 |
Q3 2012 |
Q4 2012 |
Q1 2013 |
Q2 2013 |
Q3 2013 |
|
|---|---|---|---|---|---|---|---|---|---|
| Project Approvals | |||||||||
| Project Finance | |||||||||
| Mining of first ore, re-start Demo Plant | |||||||||
| Mobilisation of heavy equipment contractors | |||||||||
| Commence civil works | |||||||||
| First EDP copper production | |||||||||
| Commissioning of EDP Neutralisation Plant | |||||||||
| First stacking to Gold Pit heap leach | |||||||||
| First Main Plant copper production | |||||||||
| Commissioning of KKV Neutralisation Plant | |||||||||
| First stacking to KKV heap leach |