21 Jipangu Project : Standard Gold Mine, Nevada, USA. Scope: Geotechnical site investigation and engineering design for a 25Mt run - of - mine (ROM) gold heap leach facility and associated process solution ponds. The 25,000 tpd operation is anticipated to produce heap with net ore height of about 300 feet on ground up to 1 3slope angle. Outcome: Design optimised heap and proposed ore stacking sequence, evaluated containment requirements, and static and seismic stability . Specific, sub - grade and overliner versus smooth and textured HDPE liners were analysed. A water balance was completed, and solution ponds and solution management systems designed. Aura Minerals Inc Project: San Andres Mine, Honduras. Scope: Design of three phases of heap leach expansion. Outcome: SRK designed the Phase IIB, Phase III, and Phase IV heap leach pad expansions. The primary challenge was to create stable heaps in excess of 1 00m in height, with clay - rich foundation material. SRK developed grading plans that met stability requirements. SRK’ s Phase IIB work included design and construction management of a cement-amended soil foundation that has provided additional stability for the heap. Alamos Gold Inc Project: Mulatos Mine, Sonora, Mexico. Scope: Design of a interlift liner system and stacking plan for a vertical expansion of the 1 4 , 000 tpd heap leach facility . An assessment of the slope stability of the interliner system was conducted to assure stability of the heap, with the addition of lower shear strength liner surfaces. Outcome: Ore recovery has increased 30with the addition of the first interlift liner and other factors that have improved recovery . Areva Project: T rekkopje, Namibia. Scope: Feasibility design for a new 30 million tonne on-off uranium heap leach pad and associated process solution ponds. SRK designed the 2.5Msq.m pad to optimise the grading requirements, designed the containment and solution collection system, performed geotechnical site investigations, stability analysis and water balance, and designed the solution conveyance and solution pond system. Outcome: SRK is currently developing the detailed design, including bid document support such as developing schedule of quantities, drawings and specifications. The heap leach facility at Alamos Gold’ s Mulatos Mine in the Sierra Madre Occidental mountain range, Sonora, Mexico