13 Codelco Chile Project: Division El T eniente, Chile. Scope: Carry out a peer review to check compliance with Codelco’ s standards for a pre-feasibility study , in order to advance to a feasibility study phase for the new mine level project. Outcome: Analysed the location of the new undercut level for the panel caving exploitation at 1 40ktpd with the possibility to expand to 1 8 0ktpd. Ivanhoe Mines Ltd Project: Oyu T olgoi, Mongolia. Scope: Open pit and underground studies and ongoing technical assistance for development of the Oyu T olgoi deposit. Outcome: SRK was involved from the early stages of the project in various aspects of the mining studies. Utilising extensive knowledge of mass mining technology , SRK assisted the client to make the critical decision in terms of mining approach and selection of design parameters. SRK also helped to evaluate trade-off studies between mining methods and has been retained to provide technical support for one of the largest block caving projects currently being considered. Minera Hier ro P aposo Project: Iron ore deposit, Chile. Scope: Complete a scoping study which considered open pit (at 1 00 ktpd) and underground (at 20, 25 and 30 ktpd) options for ore extraction. High - level consultant for hydrology and hydrogeology issues, process and plant design, ore transportation, environmental, and port facilities review . Outcome: T echnical and economic evaluation was carried out to define the best mining extraction method. Underground option was selected due to limited time for ore production. Dry magnetic concentration was selected for the ore process. Further work recommended for the next stages. Nor thg ate Minerals Corp Project: Y oung - Davidson, northern Ontario, Canada. Scope: Preparation of a conceptual underground mine design and economic assessment. The client was assessing the possible reopening of a historic gold mine that had two shafts and extensive underground workings, and involved high tonnage bulk mining employing open stoping. Outcome: Completed conceptual mine design and indicative economic assessment, which justified additional work to advance the project. After further studies and investigation, Northgate has completed a pre- feasibility study and has started a full feasibility . Since 1 999 SRK has worked with BHP Billiton’ s team at the Ekati™ Diamond Mine in Canada to select and design appropriate underground mining methods for individual kimberlite pipes