Independent Audit Report, Mine Closure

Sector: Resources
Client: Energy Resources of Australia
Location: Jabiru, Northern Territory
Services Provided: Quantity Surveying


Energy Resources of Australia’s (ERA) Ranger Mine is currently undergoing closure and rehabilitation. The overarching objectives for closure and rehabilitation are defined under the Environmental Requirements of the Australian Government for the Operation of the Ranger Uranium Mine.

Part of the requirements require ERA to produce an Annual Plan of Rehabilitation (APR) for the approval by the Australian Government, of which a Trust Fund is set up to provide security against the estimated costs of closing and rehabilitating the Ranger mine immediately.


MGA were engaged to provide the services of independent certifiers to assess rehabilitation progress against the APR and deliver audit reporting.

Our role included both a desktop study and a site visit to produce an independent report of the progress achieved on site, reporting against the approved APR. Tasks involved review of the APR to understand the project reporting requirements, interview Package Leads & ERA representatives, gather / witness supporting progress documentation, forensic analysis of GIS and spatial data.

Various packages of the rehabilitation works required different methods of recording progress, due to the nature of the package and requirements of the APR. These processes were developed between MGA and ERA considering the practicality and time available to do so.


This report enabled ERA to successfully drawdown on the trust fund for the works completed on site for this period.

MGA are in current communication with ERA to complete these reports on an ongoing basis, including assisting in the methodology of recording / reporting the progress of the current and future packages.