Mine waste engineering Total mine water management solutions MINE SERVICES Resource infrastructure Environmental and social consultation AUSTRALASIA

GLOBAL LEADER IN THE MINING INDUSTRY ABOUT US

Klohn Crippen Berger Ltd. (KCB) is an international engineering, geoscience KCB RegistraƟ ons and environmental consulting fi rm with its head offi ce in Vancouver and Quality 9 offi ces in strategic locations in Australia, Canada, Peru and the UK. We have a strong reputation for quality service and technical expertise in a range of ISO 9001 services including: Mining, Environmental, Water, Power, Transportation, and Environment Oil and Gas. Since forming in 1951, we have a long history of participation in local projects, as well as a strong international reputation. We are working on ISO 14001 some of the largest, most challenging engineering projects, both nationally Health & Safety and internationally. OHSAS 18001 AUSTRALASIAN GROUP

Our Australasian operation services a wide Engineering services focus on geotechnical Our clients include: variety of mining clients within Australia and civil services for mining environments. Antamina Mines (Peru) and across the Pacifi c Rim. We are based We have a particularly strong reputation for AngloGold Ashanti in two offi ces, Brisbane and Perth, which complex and large-scale tailings and waste (Australia) operate under an integrated management rock design, often coupled with sediment Barrick Gold (multiple sites) system consisting of quality, health and and water diversion structure designs for BHP Billiton (multiple sites) BHP Billiton Iron Ore safety and environmental procedures. A severe rainfall events or for areas with BHP Billiton Mitsubishi large proportion of our work is conducted in annual rainfall measured by the meter. Our Alliance (Australia) geographically remote and often logistically engineering experience extends beyond Bluestone Tin (Australia) challenging environments, domestically and design and includes construction, QA / QC Department of Natural internationally. We have a strong record of and third party review roles; and, integrated Resources and Mining (Australia) project delivery under extreme conditions water management solutions through our Emperor Gold (PNG) from the wet humid tropics of equatorial Asia geosciences group. Evolution Mining (Australia) to arid remote mining areas within Australia. First Quantum Minerals We pride ourselves on being a high-end Our Environmental services are distributed (multiple sites) technically strong consultancy with mature across baseline and impact environmental Fortescue Metals Group service delivery practices including inter- sciences, and operational support through (Australia) Freeport McMoRan (multiple offi ce and inter-group project collaboration. project development and maturation, strengthened with consultation and sites) This latter element of our business is Gindalbie Metals (Australia) community engagement experience. particularly advantageous as it permits us to Glencore effi ciently provide more specialised services Regulatory reporting, document submission Hidden Valley Mine JV (PNG) (such as mechanical, electrical and structural and application support form part of our Iluka Resources (Australia) Independence Group engineering) from other offi ces to our local experience. (Australia) clients. Although our operations are based around Millennium Minerals Ltd three core technical streams, the value-add (Australia) Key services established from our Nautilus Minerals (PNG) that we provide is the ability to incorporate Australasian operations are based around Northern Minerals Ltd three core technical streams. and understand each technical stream (Australia) during project delivery. Many of our projects Newcrest Mining (multiple Geosciences (includes: hydrogeology, are generally multi-disciplinary, and often sites) geochemistry and geology). Through involve collaboration with external parties. Ok Tedi Mining (PNG) this group we specialise in whole of site Oyu Tolgoi LLC (Mongolia) Panoramic Resources water and water quality management (Australia) solutions, and have advanced capability and Perylia (Australia) experience in modelling, mitigation design Sagittarius Mines (Tampakan and fi eld implementation of testing programs Project - Philippines) and system commissioning. Key aspects Rio Tinto (multiple sites) Teck (multiple sites) of water management undertaken by the Vale (multiple sites) geoscience group include water supply Woodlark Mining Ltd. (PNG) development, mine dewatering, project water balance simulations (operational and post-closure) and water disposal. TEAM LEADERS Chris Langton, General Manager, Brent Usher, Manager Geosciences, OUR MISSION Australasia, has over 25 years of has over 18 years of international groundwater and environmental project experience in the fi eld of aqueous To a ract, develop, and retain experience in the mining, industrial and geochemistry and hydrogeology for the talented staff and quality clients who commercial infrastructure sectors. mining sector. thrive on challenging projects Chris Dickinson, Principal, Senior Steve Flynn, Manager Engineering, Consultant, has over 20 years of has over 20 years of international OUR VISION experience as a geologist, with almost geotechnical engineering experience for 20 years as a consulting hydrogeologist the mining and construction industries. working in Australia, Asia, the Pacifi c and Excellence, teamwork, and innova on Canada. MaƩ hew Ind, Senior Civil Engineer, has building a be er world over 17 years of experience in managing Chris StrachoƩ a, Manager Strategy and leading mine and civil design and Growth, has over 17 years of projects in Australia and overseas. OUR VALUES experience in the fi eld of geosciences in Australia, South America, Asia, Europe • People First and the Pacifi c. • Health & Safety • Sustainability • A respec ul, sa sfying and fun workplace • Professionalism • Quality • Innova on • Technical Excellence MINE WASTE ENGINEERING Services Dam Design Surface Water Management Design Risk and Benefi t Assessment Geotechnical design of tailings and water Hydraulic and hydrological assessment Risk assessment and risk management dams. Designs incorporate seismicity, and modelling of project sites including plans for mine waste and water facilities. seepage control, stability, natural dam break assessments and fl ood Benefi ts assessment to balance and hazards, and water management. mapping. Design and implementation mitigate potential risks. of site-wide surface water management Waste Rock Dumps plans capturing diversion, drainage, and Geotechnical and environmental design attenuation. Development of project- of waste rock dumps. Water balance, specifi c erosion and sediment control water management and hydraulic strategies to industry best practice. structure design associated with dams waste dumps and open pits. Tailings Technologies Designs to improve water management ConstrucƟ on and reduce project footprints using Focus on building projects that work for dewatered, paste and thickened the client and the community. Provision tailings. Alternative technologies using of QA / QC services, construction co-disposal with waste rock, cells to supervision / monitoring and cost limit evaporation losses, cycloning and control. thickening of select tailings streams and Mine OperaƟ ons combinations of conventional tailings storage and new technologies. Integration of international best practices following ANCOLD, ICOLD and Closure World Bank / IFC guidelines. Preparation Design for long-term sustainable closure of Operation Maintenance and of dams, tailings impoundments and Surveillance Manuals and Emergency waste dumps. Preparedness Plans. MINE WASTE ENGINEERING Experience

Hidden Valley Mine, Papua New Guinea Tampakan Project, Philippines eroding waste dumps, and undertook Over a 15 year period KCB has KCB has undertaken feasibility the investigation and design for the plant undertaken numerous work scopes investigations and designs for waste site. Several studies were undertaken to at this open pit gold mine spanning storage facilities and appurtenant assess potential (tailings and waste rock) concept to detailed design and structures for the proposed Tampakan co-mingling options. construction monitoring for waste rock copper mine in Mindanao. Facilities Simberi Mine, Papua New Guinea dumps and PNG’s fi rst large scale TSF included a 1.4 Bt capacity TSF using Conceptual and detailed designs have which comprises two large earth-fi ll centerline construction methods, a been completed for stable waste rock dams. 2 Bt stable waste rock dump and a dumps at the Simberi Gold Mine, freshwater dam upstream of the TSF to PNG. Designs included geochemical Ok Tedi Mine, Papua New Guinea manage the 55 km2 catchment. KCB has been working at Ok Tedi Mine segregation of waste and seepage, water since the mid 1980s with scopes ranging Waisoi Copper Project, Fiji management to reduce dump erosion from detailed design and construction KCB undertook an integrated water and and static and seismic geotechnical supervision of the Ok Menga hydro- waste management prefeasibility study. stability analyses. electric power plant to the detailed This comprised of geotechnical and Collingwood Tin Mine, Qld, Australia design and construction supervision hydrogeological site investigations for KCB undertook the geotechnical and of the dredged sand stockpiles and proposed mine waste disposal options hydrotechnical designs, and provided pyrite concentrate pits at Bige. KCB including co-disposal. construction supervision for the tailings has also carried out numerous studies storage facility at Collingwood mine. for potential TSF sites and is currently Porgera Mine, Papua New Guinea undertaking scopes related to mine KCB designed the stable waste rock closure. KCB is retained by OTML to dumps and the Waile Creek fresh water provide periodic site inspections and supply dam at the Porgera Mine. KCB audits of the Bige site. also developed the concept for the GEOSCIENCES Services

Geochemistry and PredicƟ ve Water requirements. Regulatory engagement predictive simulation of both fl ow and Quality Modelling and technical support for regulatory water quality characteristics. Geochemical assessment of mine submission. Baseline CharacterisaƟ on materials. Predictive water quality Hydraulic Structures Groundwater and surface water modelling for pre-mining environmental Design and construction of diversion monitoring program development and impact assessment, and mine operations structures, diversion channels, spillways, implementation for the characterisation and closure. Prevention of acid rock sediment ponds and decant systems. of baseline conditions relative to drainage and metal leaching through Assessment of “dam break” and “tailings proposed project infrastructure / waste and water management strategies, run-out” scenarios to support emergency footprint and potential receiving and integration with engineering design preparedness planning (EPP). environment. and construction.

Water Balance and Water Management Environmental Design Total Water Management SoluƟ ons Water quality modelling to integrate Holistic approach to water management Optimising water recovery in arid climates facility engineering design with incorporating project usage effi ciency; and improving storage, treatment and limiting environmental factors in the re-use and discharge requirements; and, release of water in wet climates. receiving waters, such as aquatic life or receiving environment compliance. Mine Dewatering & DepressurisaƟ on downstream water use. Design of mine dewatering systems that Groundwater Modelling manage both quantity and quality of Groundwater modelling to allow mine water. Design of depressurisation predictive simulation of potential systems for pit wall stability. modifi cations to the hydrogeological Water Supply and Regulatory Approvals system as a result of project Groundwater and surface water supply development, operation, closure and and storage assessments for project post-closure. Modelling includes the GEOSCIENCES Experience Nullagine Gold Project, WA, Australia facility for the purpose of regulatory for in pit tailings disposal, PFS level Design, constructed and implemented review, impact assessment and closure closure planning for tailings and concept supplementary groundwater supply for requirements. design investigations (hydrological, the project demand; including resource hydrogeological and closure) for Lihir Gold Mine, Papua New Guinea management and whole of site water proposed tailings management Development of a regional scale accounting. facilities. Field studies, drill planning hydrogeological model to predict a range and specialised recommendations and Browns Range Project, WA, Australia of mine infl ows with time, apportioned programs to characterise the unique and Whole of site water management by source including potential seawater complex hydrogeological conditions of including the establishment of ingress and structurally derived fl ows. the site. groundwater supply for project demand, Model was adapted for proposed mining pit dewatering assessment, groundwater expansion under diff erent development Antamina Mine, Peru impact assessment and post-closure pit scenarios. Dewatering options were Whole of site water balance / void assessment. developed and consideration of water quality model development, dewatering eff ectiveness presented for implementation and scenario modelling Cobre Panama Project, Panama consequent depressurisation studies. to predict water quality and fl ow Whole of site water balance update for predictions across the project site; and, the assessment of water supply reliability Ok Tedi Gold Mine, Papua New allow operational management of waste from surface water sources. Guinea Several iterations of numerical and water facilities. modelling of the Ok Tedi Pit with a focus Mount Isa Mine, Qld, Australia on post mining recovery, development Tampakan Project, Philippines Geochemical and hydrogeological of pit lake conditions (elevation and Mine waste (rock and tailings) assessment of various waste facility timing), assessment of regional post geochemical characterisation, site-wide and aquifer systems for the purposes mining groundwater conditions and water balance modelling and tailings of operational management, impact development of input for pit lake water storage facility seepage assessment. assessment, closure requirements and quality assessments. Work included regulatory approvals. consideration of underground mining MacArthur River Mine, NT, Australia impacts on the pit void post closure. Provision of geochemistry, Goro Nickel Project, New Caledonia hydrogeological and engineering Groundwater monitoring reviews, PFS services with respect to the overburden hydrogeological and hydrological studies emplacement facility and tailings storage ENVIRONMENTAL & CONSULTATION Services

Baseline Studies manner aligned with corporate social and best design the EMP to mitigate Characterisation of pre-project responsibility best practices. potential impacts and provide a better environmental conditions in the environmental outcome for the project. Impact Assessment and MiƟ gaƟ on potential project area of infl uence. Plans Monitoring and Regulatory Compliance Coordination of multidisciplinary studies Assessment of potential environmental ReporƟ ng relating to the physical, biological and and social impacts as well as cumulative Establishment and installation of social environment in a diverse range of eff ects that would be expected as environmental and social monitoring environmental settings, covering tropical, a result of the proposed project. programs during construction, subtropical and arid zone climates. This assessment starts with the operations and post-closure, including Conducted for regulatory approval, fundamental environmental and social compliance monitoring and reporting for project fi nancing and corporate conditions prevailing in the immediate national regulatory agencies. Monitoring governance in both green fi elds and area of the project and within the plans designed to follow on from brown fi elds project settings. May surrounding communities and includes baseline studies and measure levels of include the identifi cation of permitting the development of mitigation, impact on the environment resulting requirements and strategies. enhancement, compensation and from the project. Stakeholder ConsultaƟ on, Capacity monitoring plans. Building and Social Management Plans Closure Planning Environmental Management Plans Development of integrated conceptual Facilitating understanding, involvement Developed for regulatory permitting and and detailed closure plans and and information exchange during all as part of a Company’s Environmental closure cost estimates, including the project stages through a variety of Management System for both the development of closure criteria and techniques, including the development construction and operational phases incorporating environmental and social of social management plans, of projects. Content and structure factors into fi nal land use planning, communication and consultation are specifi cally designed to meet the optimising opportunities and minimising plans and social impact assessments. requirements of the project and usually long-term risk. Culturally appropriate materials and include monitoring, emissions control, tools are devised to improve this impact mitigation and procedures for process. documentation and reporting. Hazard Training, skills development and identifi cation and risk assessments can facilitation of workshops are undertaken be undertaken during EMP development with clients and local communities to to understand the pathway from a build their capacity for working in a potential hazard to potential impact ENVIRONMENTAL & CONSULTATION Experience

Hidden Valley Mine Advisory Ok Tedi Mine Community RelaƟ ons, Cracow Mine, Qld, Australia CommiƩ ee, Papua New Guinea Papua New Guinea Development and implementation of KCB was appointed as AC members The Ok Tedi Mine community relations Receiving Environment Monitoring for a period of four years in 2009. team is responsible for gaining and Program (REMP). Involved site The AC provided high level review, maintaining the company’s license to selection for surface water quality recommendations and general advice operate covering a demographic of over and macroinvertebrate sampling, addressing mine site waste and 100,000 people. The team has a current development of trigger values and environmental management strategies, staffi ng level of 40 with varying levels of submission to regulator for approval. general riverine impacts and social issues qualifi cations and experience. KCB has Quarterly monitoring results are covering a range of community and been commissioned to undertake a CR interpreted against the trigger values, government stakeholders. capacity review, develop a strategic CR which are constantly reassessed as more management plan and, facilitate training data is generated. Ok Tedi Mine SEIA, Papua New Guinea programs aimed at updating the present As part of the 15 year extension skills base. Lihir Gold Mine, Papua New Guinea to its current mine plan, KCB was Comprehensive mine closure plan commissioned to undertake a socio- Tampakan Copper Mine, Philippines update including environmental and economic assessment of this proposal. KCB completed a Social Impact socio-economic aspects and cost The work was completed following an Assessment and Community estimate update. extensive analysis of unedited community Consultation Program for a mine access engagement and consultation reports road. Using IFC performance standards involving 156 separate villages. we worked closely with local consultants and experts from the local university to complete the project. RESOURCE INFRASTRUCTURE Services

We integrate engineering, geoscience switchyards, instrumentation control truss stream crossings to larger cable and socio-environmental consultation to systems, and excitation and SCADA stay bridges; and swing and fl oating study, design, build and close projects systems. span structures. Design aspects for in the mining and energy sectors. tunnel infrastructure include hard rock Our engineering is supported by Ports and TransportaƟ on and cut / cover tunnels; and, associated environmental, permitting, social and Assessment and design of container retaining walls and rock fall protections. consultation teams. terminals, drydocks, wharves and project Infrastructure foundation assessments access roads. include mill and plant structures; truck Process, Pipeline and Mechanical Hydroelectric Power GeneraƟ on shops; camps; and, auxiliary support Conceptual through to detail design facilities. of water / slurry pipelines for water Investigations, design and construction supply, reclaim systems, drainage and Cranes, LiŌ ing Equipment and management of large hydro-electrical irrigation. Designs also relate to pump / Conveyors projects to smaller run-of-river hydro barge specifi cations, boilers and steam Design of loading facilities include bridge, schemes. Design incorporation of distribution, industrial heating and container, hammerhead and level luffi ng Kaplan, Bulb and Francis & Pelton ventilation. cranes; ship unloaders; marine loading turbines and generators. Specifi c design ramps and drydock equipment. Electrical, Power and InstrumentaƟ on components include gates, stoplogs, Assessment, design and implementation trash racks, turbine valves and hydraulic management of generators, transmission control systems. lines, power distribution (and associated Bridges, Tunnels and Structures load studies), transformers and Bridge designs include pre-fabricated RESOURCE INFRASTRUCTURE Experience

Ok Tedi Mine, Papua New Guinea Antamina Mine Water Pump-back VotoranƟ m Metals Goethite Pumping Mechanical and electrical design of System, Peru System, Peru cyclone systems. Retrofi t of valve Designed a new pump-back system Design for the replacement of a goethite chambers and capacity upgrade at to accommodate the low-grade pumping system at the Votorantim zinc hydro-electric plant site. ore stockpile. The surface water refi nery in Peru. Upgrade of pumps and management plan comprised a system associated piped infrastructure. Browns Range Mine, WA, Australia of lined ponds, ditches, pump-back Design of water supply reticulation stations and sodium-hydroxide dosing system, including equipment selection, to control the quality of surface water control philosophy, quality estimates and released to the environment. CAPEX / OPEX cost build-ups. Vale Inco, Canada Nam Theun 2 Hydroelectric Project, Pre-feasibility study to assess options Laos to improve reliability of the reclaim Provided bid design, fi nal design and pumping system that supplies water to construction engineering services for the the Upper Pond. two main civil works packages for this 1074 MW project. OFFICES

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