Hydrometallurgy Capability statement Expertise in hydrometallurgy SNC-Lavalin is a leader in the study, design and construction of hydrometallurgical plants. Our core experience includes base metals, rare earths, gold and platinum group metals. This is enhanced through our broad range of experience in various extraction and recovery techniques. Extraction Solution purification › Atmospheric leach › Neutralization › Pressure oxidative leach › Solvent extraction › High pressure acid leach › Ion exchange › Heap leach › Sulphide precipitation › Bio-leach › Cementation Metal recovery Tailings and effluent treatment › Electrowinning › Arsenic fixation › Reduction › Heavy metal removal SNC-Lavalin has designed and built a total of HIGH PRESSURE 10 ACID LEACH PROJECTS Recent selected hydrometallurgy mandates Antucoya, Chile Client: Minera Antucoya Ltd. Highlights of services provided Services: EPCM (balance of plant), EPC package management › Managed 4 large vertical EPC contracts › Greenfield project processing 32 Mtpa of ore into 80 ktpa › Project mechanical completion achieved at 3% below budget of copper cathodes › Highly proactive HSSE approach achieved remarkable results: › Project site was 9x11 km large and included infrastructure over 21.1M hours worked with TRIF=0.12 and LTIF=0.085, camp for 5,000+ workers and last 3.25M hours free of recordable incidents › Process involves crushing, leaching, solvent extraction › Hand safety campaign earned Canadian Safety Society of and electrowinning. Engineering 2016 National Outstanding Achievement Award. Ambatovy, Madagascar Client: Ambatovy – Sherritt, Sumitomo, Kores and SNC-Lavalin Highlights of services provided Services: FEL3, EPCM › Our comprehensive Local Resource and Development Initiative › Greenfield project to produce 60,000 tpa of Ni and 5,600 tpa of Co (LRDI) program trained 6,100 nationals, placed 95% of trainees, › Open pit mining and transport via a 220-km slurry pipeline to an and supported small, medium, micro enterprise (SMME) HPAL processing plant and refinery. Also in scope were tailings development through training, mentorship, and 700 local contracts management facilities, access infrastructure, and upgrades to port › SNC-Lavalin’s PM+ project management software tracked and › At peak, over 18,000 construction workers (6,000 in construction monitored over 350 purchase orders, 90 construction contracts, camps) were working on five work sites and 2M home office work hours from multiple offices › Project represented significant challenges in terms of complexity, › Winner of 2014 Canadian Consulting Engineering Award location, infrastructure, labour, environment, of Excellence in the Project Management category. and climate. Rochester POA11, United States Client: Coeur Rochester Inc. (CRI) Highlights of services provided Services: EPCM › SNC-Lavalin performed the gap analysis during Phase 1 (first › Engineering design and technical support during construction three months of the Project). Detailed engineering on any gaps of the 13,750 gpm processing plant identified during Phase 1 will be done in Phase 2 of the Project. › New open pit mine, crushing plant, stage VI heap leach pad, › SNC-Lavalin will oversee most engineering service providers on site facilities and utility upgrades (roads, power, water, etc.) for behalf of CRI. SNC-Lavalin will review all detailed engineering 2 development areas for acceptance and constructability. Year Location Project Client Services In progress United States Rochester POA11 Process Plant Coeur Rochester Inc. EPCM 2018 Brazil Suruca Yamana Gold FS 2016 Australia Syerston - Scandium Project - HPAL Circuit CleanTeq Metals FS 2016 Philippines Silangan Process Plant Silangan Mindanao Mining Company FS 2015 Israel Timna Arava Mines EPCM 2015 Dominican Republic Pueblo Viejo Pueblo Viejo Dominicana Corporation CM 2015 Chile Antucoya Antofagasta EPCM, EPC management 2014 Madagascar Ambatovy Ambatovy FS, EPCM 2014 Colombia Cerro Matoso – Heap Leaching Cerro Matoso FS 2014 Peru Oxides Plant Volcan EPCM 2013 New Caledonia Goro - 4th Autoclave Vale PFS 2013 Turkey Gordes Meta Nikel Kobalt Sanayi ve Tikaret AS E, P support 2013 Gabon Maboumine Eramet E 2013 Canada Thor Lake Avalon Rare Metal s Inc. FS 2012 Chile Lobo Marte Kinross FS 2012 Chile Mina Justa Oxides Plant Marcobre FS review, E 2011 Russia Amursk Gold POX Plant Amur Hydrometallurgical E, P 2010 Peru 4B Leach Pad - Phase II Cerro Verde Freeport-McMoRan E 2010 Chile Gaby Project Phase II Corporación Nacional de Cobre de Chile E, EPCM 2010 Yemen Jabali ZincOx Resources EPCM 2008 New Caledonia Goro Nickel Vale DFS, EPCM FS: Feasibility Study / E: Engineering / P: Procurement / C: Construction / CM: Construction Management / DFS: Detailed Feasibility Study .