How we rehabilitate and close our mines is just as important as how we build and operate them. Our land management and rehabilitation efforts are aligned with leading practice and undertaken in a socially and environmentally responsible manner. We have a strong track record over several decades of leading successful rehabilitation through to land relinquishment.


We have an integrated approach to planning the rehabilitation and closure of our mines, that commences at the feasibility phase and continues throughout the life of the asset – evolving over time as more information becomes available. We understand that closure planning is dynamic and have a Closure Standard that guides a consistent approach across the business, tailored to local regulatory requirements. This requires every site to have an overarching Closure Framework which consists of a number of closure components – either contained in a singular closure plan or maintained in multiple documents in a central database. Closure components are at a level of detail that is appropriate for the project phase and current understanding of site conditions. These components are reviewed as required to reflect changing circumstances of a site such as transitioning of each project phase and changes in operational activities and mining methods. This is underpinned by consistent and transparent stakeholder consultation to work towards mutually beneficial and supported closure outcomes.

During the early phases of a project, closure planning identifies uncertainties related to closure objectives or criteria, and potential rehabilitation research or engineering required to address these uncertainties. A detailed handover of all closure components occurs at the transition of each phase of a project

We focus on progressive rehabilitation during the operations phase of the mine lifecycle to:

  • minimises the mining footprint;
  • assist with understanding and evaluating closure risks;
  • identifies knowledge gaps and inform research and development programmes; and 
  • refine closure provision estimates.
Rehabilitation targets are linked to the company’s sustainability improvement targets and employee incentive plans. During 2019, the rehabilitation of 686 hectares of land in Australia, the United States and Sierra Leone was completed. A total of 322 hectares of land was disturbed in 2019. Construction of the Cataby mine accounted for >65% of the land disturbance, while >20% is attributed to the mine move of Jacinth to the Ambrosia pit at the Jacinth-Ambrosia mine.      

 



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Legacy contamination

In addition to the ongoing environmental management of our operating mines and processing sites, we seek to address historical land contamination issues prior to or during closure. Given the long history Iluka and its predecessor organisations has, contamination may exist by virtue of the standards of the day, as opposed to any regulatory non-compliance. Iluka seeks to address any potential risk of harm to communities and the environment through a programme of identification, assessment and remediation of contaminated land. 
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