Associated Event

Mine Closure 2022
4-6 October 2022 | Brisbane, QLD, Australia

Understanding the Costs of Closure through Integrated Mine Closure Planning Workshop (Sold out)

7 October 2022 | 9:00-17:00, Redlands Room, Hilton Brisbane

 This event will be held in person only.

About the workshop

The importance of integrated and proactive mine closure planning that starts in the design phase and continues throughout the mine life, is widely accepted in international literature. Industry-led guidance released by the ICMM in 2019 strongly advocates that mine closure is integrated proactively with all parts of the business, from ground work and mining activities to short-, medium- and long-term business plans and financial models ( 

Inadequate mine closure planning and closure designs could be irreversible or costly to rectify. Early and ongoing mine closure planning along with regular updates to closure cost estimations allow the environmental, social, legal and financial liabilities of planned and unplanned mine closure to be better understood and managed over the mine life. This has the potential reduce the cost of mine closure and improve environmental and social outcomes. 

Globally, we are seeing a movement within regulatory frameworks towards formalising the development of mine closure plans and closure cost estimates at initial mining lease application phases (an example of which is the Queensland regulations which require a Progressive Rehabilitation and Closure Plan (PRCP) inclusive of rehabilitation milestones at the application phase of a project) and a push to integrate site-specific costs for closure into the overall economics of a mining project, without artificially scheduling all works so far into the future the net present value NVP value reduces their impact on the project’s viability.  

This workshop will provide participants with an overview of current international guidance for mine closure planning and best-practice closure cost estimation. The workshop will include real world anecdotes and hands-on practice in closure cost estimation and an options analysis to provide attendees with an appreciation of the different types of closure cost estimation, available tools, the implications of mine design with a focus on closure at the early stages of mine planning, and the overall challenges of accounting for mine closure liabilities.   

Who should attend

The audience for this workshop is people in any role associated with the mining industry who have an interest in the liabilities associated with planned or unplanned mine closure. This includes mine closure planning practitioners, consultants, regulators, company representatives, technical experts, mine planners, mine managers and allied professionals. 

Workshop facilitator

Program* Session
What went wrong?
An overview of mine closure history
What is mine closure planning?
Study example of integrated mine closure
Closure cost estimates and mine closure planning: what do we need to know?
Closure cost estimation: types and tools
The importance of spatial data (practical session)
Standardised Rehabilitation Cost
Estimator as an integrated mine closure costing tool (practical session)
Standardised Rehabilitation Cost Estimator as an integrated mine closure costing tool continued
Challenges and opportunities: closure is forever
Q&A session and wrap up
Workshop close

*Program is subject to change. Check this web page for updates.

Danielle Kyan
Principal Consultant (Mine Closure)
SRK Consulting

Danielle has over 21 years’ experience working as a consultant in the mining industry with over 17 years of specialisation in closure cost estimation.

Danielle has worked on mine cost estimating and rehabilitation planning and instructed short courses and workshops for closure cost estimation across a range of commodities within the Asia Pacific region. Danielle has in-depth experience working within the Australian states’ regulatory requirements with a particular focus on Queensland and Western Australia. She has managed closure cost estimation projects that included annual liability reporting, life of mine provisioning, and regulatory financial assurance, and worked alongside external consultants as part of several feasibility studies, due diligence reviews, and financial assurance audits.

Danielle’s early career began in the petroleum and coal exploration sector with a focus on data management, data interrogation, GIS complication, and geophysical basin structure interpretation as part of the SRK Australia basin study team.

Ray Mayne
Principal Consultant (Mine Closure)
SRK Consulting

Ray has been involved in the field of environmental science for the past 15 years. He has obtained experience in the mining and industrial sectors, including development of closure strategies and implementation of rehabilitation measures. Over the last 9 years, Ray has developed an interest in mine closure and has assisted numerous operations in South Africa and internationally with the development of closure liability assessments and mine closure plans.

As a result of Ray’s interest in mine closure, he was a project manager on a rehabilitation project from 2013 until 2020, where SRK Consulting has been tasked with the development of closure strategies and designs and the implementation of rehabilitation measures. This has required Ray to manage a large project team consisting of client representatives, SRK personnel, various sub-consultants and contractors. As of 2019, Ray has been mostly involved in mine closure-related projects, as well as technical review of closure aspects for due diligence projects.


Jason Beltran
Senior Consultant (Mine Closure & GIS)
SRK Consulting

Jason has over 22 years’ experience in the GIS and resources industries including 9 years in closure cost estimation. Jason is a Senior Consultant specialising in closure cost estimations using the SRCE model globally and across different commodities such as Iron Ore, Gold, Nickel and Mineral Sands.  He also delivers short courses for implementing the SRCE modelling for closure estimation projects in Australia. 

Currently Jason manages all GIS data within SRK, developing systems using ESRI’s ArcGIS Server technology to publish and share digital mapping solutions across the organisation.


All users will be required to bring their own laptop with Excel 2010 or later. 

The workshop will be interactive and will include SCRE modelling exercises as well as presentation materials. Presentation materials and modelling exercises will be provided to attendees on an USB drive at the beginning of the workshop.