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Reserve Estimation and NI 43-101 Reporting

OSBORNE GOLD/COPPER PROJECT

The Osborne Copper Gold Project is located in northwest Queensland. The project has been in operation since 1995 and consists of several copper-gold deposits at various stages of development, and a processing plant. The mineralisation is characterised as belonging to the iron-oxide-copper-gold (IOCG) class of deposits.

In 2011, Ivanhoe commissioned SRK to complete a review of the Osborne Copper Gold Project Study, which demonstrated the economic viability of the project. Following the successful completion of the review, Ivanhoe requested that SRK complete a mineral reserve estimate and NI 43-101 technical report for three deposits within the Osborne Copper Gold Project. The project was split into two areas – Osborne/Kulthor and Starra 276 – with two separate technical reports commissioned. 

SRK personnel made site visits in both 2011 and 2012, which provided a valuable opportunity to increase understanding of the interactions between the deposits. A site visit undertaken partway through the development of the mineral reserve estimate allowed SRK to discuss the designs with site personnel and collect feedback pertaining to any significant issues, resulting in some changes to the design and a better understanding of the deposits. 

Over a three-year period, the project advanced from a preliminary environmental assessment to reporting Mineral Reserves. The project is now owned by Shanxi Donghui. 

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Consultants in Related Fields

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Sukhanjan Bose

Sukhanjan Bose

Kolkata, India
Sukhanjan has more than 15 years of experience in exploration and the mining industry.
Sudipta De

Sudipta De

Kolkata, India
Sudipta has some 30 years' experience in mine planning and design, feasibility studies, OHAS hazard identification, risk assessment, and operational support.
Peter Myers

Peter Myers

Cardiff, United Kingdom
Peter is a Competent Person with over 40 years’ experience in underground and open pit mining.
Edward Saunders

Edward Saunders

Vancouver, Canada
Edward is a Principal Rock Mechanics Consultant with over 14 years engineering experience. He has performed geotechnical slope design work at over 30 operating mines with experience from hard rock, structurally controlled deposits to weak, saprolites or altered materials requiring depressurization.

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