Flowsheet improvements for the real world

IsaMill™ uses horizontal milling to secure better energy effi ciency, product size and availability with a 25% capital-back performance guarantee.

IsaMill’s horizontal configuration means it’s completely different from other mills. IsaMill™ gives me an increased recovery that outweighs the cost. I never have to worry about the mill.” – Amandelbult Operation, Anglo American

Flowsheet improvements for the real world IsaMill™ at a glance

> Real-world success in 130 metalliferous installations across 21 countries since launching in 1994 > World’s only horizontal fine grinding mill, it avoids short-circuits and gives the highest availability > Most efficient fine grinding mill in the world > Strongest performance guarantee in the world > Most consistent product size > Delivers better results to downstream flotation and leaching

For more: isamill@glencore.com.au Tel +61 7 3833 8500

IsaMill™ 1 IsaMill™ is the most effi cient and reliable grinding mill available and with 130 metalliferous installations in 21 countries it has a proven record in the real world.

The IsaMill™ reduces the energy, media and capital costs of grinding. It’s incredibly effi cient and intense. It focuses only on the particles that need grinding.

The IsaMill™ produces greater power vertical mill. It’s easy to operate and it The IsaMill™ is currently available in the intensity than ball or tower mills. maximises availability. following models, named for their net grinding volume: Today’s IsaMill™ is also light. A modest The IsaMill™ gives an accurate and volume of concrete and structural steel rapid scale up, so it’s predictable • M1000 (355–500kW)* are used, and the entire unit sits on a and reliable. • M3000 (800kW) one-storey platform. This means it’s Operating and maintaining the IsaMill™ about a third the height and weight of • M5000 (1120–1500kW) is safe, simple and reliable. It’s quick to similar grinding mills available. install, fl exible in operation and easy • M10000 (3000kW) It produces the most consistent and to maintain. • M15000 (3700kW) ‘sharp’ particle size distribution in a The IsaMill™ is widely used in base simple open circuit confi guration. • M50000 (8000kW). metals (copper, lead, zinc and nickel), IsaMill™ is the world’s only horizontal PGM, iron ore, industrial applications fi ne grinding mill. The horizontal slurry and gold processing plants and is the fl ow means low cost ceramic media best choice for regrinding concentrates, can be used without the concerns of a fi ne or ultrafi ne grinding and mainstream grinding.

* Smaller models are available on request 2 Flowsheet improvements for the real world How IsaMill™ grinds more effi ciently and delivers greater value

1. More accurate scale-up 3. Finer grinding and 5. Easier operation and better media maintenance The IsaMill™ is proven in the real world. Lab and pilot results are scaled to Slurry travels in a ‘plug’ fl ow pattern A Liquid Resistance Starter for the commercial size with 100% accuracy. through the eight rotating grinding IsaMill™ motor means it can be started We test rigorously for specifi c energy, discs within the mill. Media recirculates under load, so no time is lost in draining particle size and optimise the media between the discs, colliding with the the mill. size for accurate scale up so that every particles in the feed, causing breakage. Maintenance is easy. The entire grinding plant we install always meets design. The media is ceramic and avoids the chamber is quick to access. Slurry is When you buy an IsaMill™, the scope passivation of particles common with fl ushed from the IsaMill™ and the includes process and engineering metallic media, improving the product media is dumped through a scuttle design, supply and commissioning by for fl otation and leaching. valve into a hopper below. The IsaMill™ experts with real-world experience, for shell is then pushed back along rails The IsaMill™ delivers an even blend easy installation by a local contractor using hydraulic rams, giving you quick of attrition and abrasion of particles or EPCM. access to all the wear parts, all in under throughout the mill. At the discharge half an hour. end, slurry and media reach a patented 2. Easier installation product separator where media and Even a complete shutdown for and operation over-sized particles are retained in the inspection and replacement of wear grinding zone, while particles at the parts including the liner itself takes less Because the IsaMill™ delivers high correct grind size exit the IsaMill™. than eight hours. intensity grinding, it only requires a small footprint. 4. Most consistent product The horizontal confi guration results in a low height, unlike vertical grinding The IsaMill™ gives a sharper product mills. Smaller cranes are required to size distribution. Other mills with just install and maintain the IsaMill™. one grinding stage require closed circuit cyclones and high recirculating The IsaMill™ takes about a tenth the loads and still don’t produce product grinding volume of an equivalent ball size distributions as tight and steep as or tower mill. There are no external the IsaMill™. screens or cyclones required because the IsaMill™ internally classifi es the The IsaMill™ also produces clean, feed and delivers a consistent product. fresh mineral surfaces that improve downstream performance from fl otation and leaching.

IsaMill™ 3 How we help you get more from your IsaMill™

Commitment in a partnership A unique performance guarantee

The IsaMill™ was developed and proven in real world With unequalled and proven performance in the real world, Glencore mining applications, so we’ve built up a suite of services Technology provide the most confi dent performance guarantee in that underpin our Technology Partnership concept. the world to minimise our customers risks: As a Partner: IsaMill™ uses horizontal milling to secure better energy effi ciency, product size and availability with a 25% capital-back • You will have access to training opportunities at real performance guarantee. client sites. The commitment and agreement is complete: • You will always have access to our most experienced technology experts around the world. • Your needs for a given energy draw or a given product distribution will be secured by the performance guarantee. • Your team will have opportunities to learn from other users. • We will work with you to ensure your needs for feed variability, operations and maintenance will be built in. • You will have access to a comprehensive spare parts supply. • Training and support will be included. • You’ll have access to maintenance and advisory services. If performance is not achieved then the 25% guarantee will apply, which is far greater than the prevailing industry • You will secure an ongoing technical standard of 5–10%. relationship with us.

4 Flowsheet improvements for the real world How others have gained from IsaMill™

George Fisher’s regrind Prominent Hill uses IsaMill™ 130 metalliferous circuit boosts recovery and to boost downstream installations in 21 Countries reduces reagents performance by December 2017 When the George Fisher project OzMinerals’ Prominent Hill copper- Clients and Projects include: needed fi ne grinding to a P80 of gold concentrator began commercial • Woodlawn (Heron Resources) seven microns in their zinc retreatment production in 2009. They needed circuit, they knew the IsaMill™ liberated fl uorine minerals to be • Aktogay (KAZKMYS) would be ideal. rejected in the cleaner fl otation circuit • Gidgi (KCGM) to produce a commercial quality Every one-micron size reduction in the copper-gold concentrate. • Eleonore (GoldCorp) zinc retreatment circuit below a P80 of 10 microns improves the overall plant A 3 MW M10000 IsaMill™ operating with • Constancia (Hudbay) zinc recovery by 1%, and the IsaMill™ 3.5mm ceramic media was installed to • Dugald River (MMG) was modelled to achieve this. liberate the fl uorine bearing gangue minerals from the rougher concentrate. • Mortimer (Anglo Platinum) Eight 1.1 MW IsaMill™ installations were introduced, two to regrind lead cleaner The IsaMill™ regrind circuit successfully • Mt Milligan (Thompson Creek Metals) feed and six to regrind intermediate produced a leaner circuit feed P80 of • Ernest Henry Mining (Xstrata Copper) zinc fl otation streams. The existing 20–25μm ensuring adequate liberation. concentrator was modifi ed to suit the What’s more, the inert grinding • Penasquito (Minera Penasquito) new ore type. environment in the IsaMill™ prevented contamination of the mineral surfaces The results were good and better – the and gave OzMinerals the optimum recovery improvement was expected fl otation performance from the fi rst day due to better liberation, but the of commissioning. operation also saw a signifi cant drop in reagents and circulating loads. Fine minerals are expected to consume more reagent due to their higher surface area, but improved liberation dropped circulating loads. Clean fresh surfaces from inert attrition increased fl otation rates and selectivity, and these signifi cantly reduced the need for collector and depressant.

IsaMill™ 5 Jameson Cell Flotation gives you more concentrate per dollar, year after year, with a 25% performance guarantee.

The Mount Isa Copper Concentrator has operated two Jameson Cells in pre-flotation and slag cleaner duties, very successfully, for over 15 years. In 2015 we installed three 18 downcomer Jameson Cells to replace the cleaner circuit. We’ve seen significant improvements in operability and maintenance intensity translating to improved recovery at a reduced cost.” – Mount Isa Copper Concentrator, Mount Isa Mines

6 Flowsheet improvements for the real world Jameson Cell at a glance

> Real-world success in 350 installations across 30 countries since launching in 1988 > It creates the smallest bubbles of any flotation cell, to deliver the best grade and recovery > No moving parts for maximum availability and easy maintenance > Strongest performance guarantee in the world > 100% scale-up reliability

For more: [email protected] Tel +61 7 3833 8500

Jameson Cell 7 Jameson Cell is the most effective froth fl otation technology in the world and the reason is in the bubbles.

The Jameson Cell creates smaller bubbles than any other fl otation cell, so it creates more surface area for the particles to collide with and attach to – six times as much! Jameson Cell Flotation gives you more concentrate per dollar, year after year, with a 25% performance guarantee.

Jameson Cell has been used and The Jameson Cell is smaller than The inclusion of a recycle mechanism proven in base and precious metals, many fl otation cells because it doesn’t means the Jameson Cell is also very coal, industrial minerals, oil sands and need a long residence time. The Cell’s tolerant of feed variations, so they’re solvent extraction. There were 350 downcomer sees feed pumped under made for the real world. Jameson Cells installed around the high pressure to shear and entrain air Glencore Technology provides accurate world by the beginning of 2018. from the atmosphere into fi ne bubbles. Jameson Cell design and scale up, Particle to bubble interaction happens The Jameson Cell has no moving parts, engineering, manufacturing, fl otation immediately in the downcomers high so it delivers reliable froth fl otation circuit design and review, installation shear mixing zone. with a promise of 99% availability. It’s support, cell commissioning and so predictable that it’s guaranteed to Jameson Cell designs are fl exible ongoing technical support. deliver 100% scale-up performance, so they’re ideal for any new project A Jameson Cell is the most risk- across all applications. and a great option for low cost plant mitigating and reliable froth fl otation expansions. They’re easy to install, system you could buy. very easy to operate, deliver excellent availability and are simple to maintain.

8 Flowsheet improvements for the real world How Jameson Cell delivers more concentrate and reduces risk for your project

1. More accurate scale-up 3. Simple operation and not residence time, so it’s much rugged tolerances smaller than equivalent mechanical The Jameson Cell is proven in the real and column cells and fewer units world. The hydrodynamics for particle After installation, start up and are required. collection inside the Jameson Cell are commissioning is even simpler – it only identical between laboratory, pilot plant needs the feed pump to operate The grade of the concentrate is and full scale Jameson Cells, so scale up to the designed fl ow and pressure. controlled by froth drainage and froth is direct, proven and guaranteed. Commissioning is simple and the cell washing. Your Jameson Cell ensures will reach design capacity quickly. an effi cient, quiescent zone that For that reason, choosing a Jameson maximises froth recovery, and is perfect Cell for your fl owsheet signifi cantly Your Jameson Cell will be sized to for froth washing. The high carrying reduces project risk. When you choose accommodate the design fl owrate capacities mean you can process large a Jameson Cell, the scope includes based on the number of downcomers. tonnages in a small volume. process and design, supply and The tank can be designed to fi t into commissioning by experts with real- restricted spaces, making it ideal for world experience, for easy installation retrofi ts/replacement and expansion 5. Easier operation and by a local contractor or EPCM. projects. The construction materials are maintenance fl exible and your cell can be fabricated to suit your application. Your Jameson Cell quickly reaches 2. Easier installation equilibrium and can continue operating if feed supply is interrupted. There are no rotors, compressors or 4. Smaller bubbles and blowers to install, operate or maintain. more concentrate Automatic tailings recycle eliminates There are no moving parts in the cell, fl uctuating feed fl ow, to give you and the only other equipment is a feed The Jameson is a step change in constant fl ow, consistent performance pump, so the Jameson Cell is quick and fl otation effi ciency. Feed is pumped and a simple start-up. simple to install. into the downcomer, creating a high- The cell operates at a constant feed pressure jet that entrains air. That Your Jameson Cell undergoes a full pressure and the hydrodynamic action aerated jet plunges into the slurry, trial assembly prior to delivery to your inside the downcomer, essential for where the kinetic energy of impact site. All the parts fi t perfectly together particle collection, is always consistent. breaks the air into fi ne bubbles which during plant installation, making the collide with the particles, carrying them Maintenance is rare and simple. whole process straightforward. into the froth phase. The highest wear component, the slurry lens orifi ce, has a wear life of Those bubbles are smaller than other more than fi ve years! Downcomer fl otation systems, creating six times maintenance can be performed while more surface area for the particles to the cell is operating and takes less than attach to. 10 minutes. The rapid kinetics mean the Jameson Cell simply needs contact and

Jameson Cell 9 How we help you get more from your Jameson Cell

Commitment in a partnership A unique performance guarantee

The Jameson Cell was developed and proven in real With unequalled and proven performance in the real world, Glencore world mining applications, so we’ve built up a suite Technology provide the most confi dent and risk-removing performance of services in a Technology Partnership concept. guarantee in the world: As a Partner: Jameson Cell Flotation gives you more concentrate per dollar, year after year, with a 25% performance guarantee. • You will have access to training and learning opportunities at real client sites. The commitment and agreement is complete: • You will always have access to our most • The lab results will scale up, with 100% accuracy. experienced technology experts around • Your Jameson Cell will perform at a minimum of 99% availability. the world. • We will work with you to ensure your needs for feed variability, • Your team will have opportunities to learn from operations and maintenance will be built in. other users. • Training and support will be included. • You will have access to service and parts help. If performance is not achieved then the 25% guarantee will apply, • You will secure an ongoing technical relationship which is far greater than the prevailing industry standard of 5–10%. with us.

10 Flowsheet improvements for the real world Examples of how others have gained from their Jameson Cell

More concentrate, less energy and a broad range of applications A set of just twelve Jameson Cells at Curragh (Australia) treats over 5 Mtpa of coal fi nes. Jameson Cells are also installed in coal operations in Africa, North America, Asia and Europe. A retrofi t Jameson Cell at Mount Isa achieved energy savings of up to 76% when it replaced 16 mechanical cells with one Jameson Cell. The biggest operating cell, a J7250/10 recovering organics from 3000 m3 per hour of raffi nate at Olympic Dam’s copper SX plant in Australia, was commissioned in 2003. There are 350 Jameson Cells operating around the world.

Jameson Cell 11 Albion Process™ leaches the broadest feed variations, costs less and ramps-up faster with a 25% capital-back performance guarantee.

Albion Process™ exceeded expectations. Even with large swings in sulphur grade and feed rate, we maintain gold recovery in the cyanidation plant above design targets. Without Albion Process™ we would only achieve around 20% gold recovery and huge cyanide consumption, but with Albion Process™ we can achieve over 95% gold recovery and minimal cyanide consumption, giving the process plant outstanding return on investment.” – GPM Gold

12 Flowsheet improvements for the real world Albion Process™ at a glance

> Real-world success in delivering over 99% leach recovery > Replaces large complex high cost-capital assets with simple low cost capital assets > Tolerates a broader low grade more variable content feed and works where others fail > Incredibly fast and simple to commission and operate > Modular so it can be implemented in stages but maintain economic performance > Strongest performance guarantee in the world

For more: [email protected] Tel +61 7 3833 8500

Albion Process™ 13 Albion Process™ combines fi ne- grinding and oxidative leaching to create a hydrometallurgical asset that works where others fail.

The Albion Process™ is a proven atmospheric oxidative leaching process for base and precious metals that is reliable, safe and highly favourable economically.

The Albion Process™ is a proven The Albion Process™ operates under The result is the world’s most proven atmospheric oxidative leaching process acid or neutral conditions. and reliable leaching system delivered, for base and precious metals that is operating in a simple, robust and easy Acid conditions are used for treating reliable, safe and highly favourable to commission package. base metal concentrates. Metal species economically. like copper are recovered by fi rst The capital investment required for the Albion Process™ has real-world success dissolving them into solution. Albion Process™ are roughly half the in delivering over 99% leach recovery cost of traditional leaching processes. Many metal compounds can be and creating signifi cant downstream oxidised and leached into solution Traditional and alternative leaching cost savings. simultaneously making it suitable for systems can be expensive or high-risk The process comprises two main steps polymetallic feeds of base and precious to operate and maintain. The Albion for effi cient recovery of valuable metals. metals or complex feeds. This means a Process™ is simple and safe. It’s also The fi rst step is mechanical liberation high grade concentrate is not required the fastest leaching process to install, using an IsaMill™ to grind the Albion for feeding Albion Process™ and the and has taken as little as six weeks to Process™ feed particles to a narrow size upstream concentrator can operate commission and begin operating at distribution. This prevents passivation of in a simpler circuit confi guration at a design recovery and throughput rates. the mineral surfaces in the subsequent point on the grade-recovery curve that The Albion Process™ is ideal for oxidative leaching step. maximises global metals recovery. precious and base metal concentrates. The second step is chemical liberation Neutral conditions are used for treating It can boost recoveries for zinc, copper, achieved by injecting supersonic iron sulphide concentrates where molybdenum, cobalt, nickel, lead, oxygen into the base of a series of metal species are recovered by a platinum group metals (PGMs), and Albion Process™ Leach Reactors downstream process after oxidation refractory silver and gold. continuously fed with the ground of the concentrate, such as gold in a concentrate. Oxygen is injected using cyanidation process. the HyperSparge™ supersonic oxygen By operating at near neutral conditions injection system to maximise oxygen for iron sulphide oxidation, elemental mass transfer and drive the oxidative sulphur is not generated. This adds leaching reactions. more value to the downstream process Albion Process™ has signifi cant as cyanide consumption is signifi cantly capital and operating cost advantages lower compared to pressure oxidative because the process oxidises as much leaching (POx) or bacterial leaching Our confi dence of the sulphide as you need but as which operate under acidic conditions. in the Albion little as possible to achieve the target Process™ is so high The Albion Process™ tolerates an metal recovery in either acid or neutral that we extend a incredibly broad feed variance. systems. This means a small oxygen unique 25% capital- Throughput and sulphur content can demand and a smaller leaching train. back performance vary signifi cantly, as most real-world guarantee. operations do, without causing a process interruption.

14 Flowsheet improvements for the real world How Albion Process™ delivers better returns and reduces risk for your project

1. Accurate modelling • First, you’ll have access to fully defi ned parameters to prevent the risks means less risk operational Albion Process™ sites of catastrophic failure. The procedures during the construction process for isolating and maintaining are very Your Albion Process™ plant is to help your operators be trained rigorous and in most countries the developed in three stages, from the and prepared before your plant is pressure vessel requires statutory laboratory to full-scale, to ensure it will commissioned. checks. These additional procedures deliver design throughput and plant impact on plant availability reducing recoveries. • Second, we deliver classroom training at your site towards the end throughput capability. • Go/No-go: A single batch test of the construction period so your Installing more than one autoclave is determines amenability of the team can retain and use what they’ve common due to rebricking requiring process to your feed material and learned. During this stage, site- another autoclave as a means of allows us to gather key design data. specifi c operating procedures are delivering continuity. So the capital costs • Optimisation: Optimisation of grind developed between GT experts and are high compared to Albion Process™. size, residence time and operating site personnel. Bacterial leaching requires many more density to ensure the correct IsaMill™ • Third, your team are familiarised with tanks, is less tolerant of feed variations size is selected. the plant and begin working under and requires maintenance of a low- • Variability and parameterisation: our guidance at site until they’re pressure air injection system which Batch testing of variability samples comfortable, usually for one or two can become blocked. It also requires weeks. We also remain in regular under optimised conditions ensures additional capital over time to manage communication. This means your that the fl owsheet will treat the wide water quality to continue operation. plant is enabled to ramp up as fast as variety of feeds encountered in the possible and maintain performance. Albion Process™ doesn’t have real operation. complicated equipment operating at 2. Signifi cantly less expensive 4. Tolerates a broader high pressures. The equipment consists and easier to install feed variation of low maintenance slurry pumps, agitators, valves, HyperSparges, tanks Ordinarily, maintaining conditions The capital equipment required in and thickeners. These items are basic in oxidative leaching processes that the Albion Process™ is considerably in design and require non-specialised maximise kinetics and leaching extent less than what’s needed in alternative skills and procedures to operate and can be challenging because the feed leaching processes. maintain and are all well understood. grade and feed rate varies. This is Even if the instrumentation fails on an It’s about half the cost of a traditional because the sulphide minerals are the Albion plant, generally the plant can POx or bacterial leaching system. fuel to the oxidative leaching process. Variability in the sulphide grade, feed keep running. The Albion Process™ doesn’t need rate, or fuel input of the feed causes Albion Process™ comprises established, pressure and so it doesn’t represent a process interruptions or loss of effi ciency reliable and proven unit operations risk of catastrophic failure or require in pressure or bacterial leaching. such as the IsaMill™, Albion Process™ the consequential rigorous statutory Leach Reactors, HyperSparge™, pumps checking. The ZipaTanks™ are modular However, the Albion Process™ is not and thickeners. This means the process and fast to erect. affected by variations in feed quality and quantity provided the oxidation is fl exible, simple, robust and reliable. In fact, the commissioning process demand is kept within the capacity of The most critical part of the Albion is incredibly fast. The IsaMill™ is the oxygen plant which is not diffi cult. Process™ is the delivery and transfer considerably easier to install than a of oxygen to where it is needed to large high intensity mill, taking as little GPM Gold in Armenia has increased drive the oxidation reactions in the as four weeks on site. At the same time, recovery of gold from refractory ore from 20% to over 95%, outperforming Albion Process™ Leach Reactors. the Albion Process™ Leach Reactors the design of 92%. This is achieved through the specially can be commissioned. The result is that designed oxygen mass transfer it’s taken as little as one team member Even with the feed rate varying from system in the Albion Process™ Leach six weeks to commission Albion 25–70 tonnes per hour, and sulphur Reactors. Oxygen is injected at super- Process™ and get operating. varying from 8–35% the recovery was sonic velocities through a set of maintained at or above design gold HyperSparge™ lances into the Albion 3. Easy to learn and recovery levels from the residue. on-board Process™ Leach Reactors. Process 5. Easier to operate interruption is minimised because the As we install your Albion Process™ and maintain HyperSparge™ units can be removed plant, we begin a thorough technology from the Albion Process™ Leach transfer with our technology experts, Pressure leach reactors are the Reactors and inspected while the other metallurgists and maintenance experts opposite of Albion Process™. HyperSparge™ units are operating and and we train your team at your site They’re complicated and higher- without scuttling leach reactors. before, during and after commissioning. risk in operation and maintenance. They require a high level of monitoring to ensure the process remains within

Albion Process™ 15 How we help you get more from Albion Process™

Commitment in a partnership A unique performance guarantee

Albion Process™ was developed and With unequalled and proven performance in the real world, Glencore Technology proven in real world mining applications, provide the most confi dent and risk-removing performance guarantee in the world: so we’ve built up a suite of services in a Albion Process™ leaches the broadest feed variations, costs less and ramps-up Technology Partnership concept. faster to deliver better returns with a 25% capital-back performance guarantee. As a Partner: The commitment and agreement is complete: • You will have access to training and • The expectations we outline will transpose to your application and learning opportunities at real client sites. Albion Process™ will achieve minimums specifi ed. • You will always have access to our most • The Albion Process™ plant will be commissioned completely, experienced technology experts around including testing, training and attainment of minimums. the world. • Our assumptions of feed variances, appropriate operation and • Your team will have opportunities to maintenance schedules will be clearly identifi ed. learn from other users. • Glencore Technology will respond to any problems or faults. • You will have access to service and parts help. If performance is not achieved then the 25% guarantee will apply, which is far greater than the prevailing industry standard of 5–10%. • You will secure an ongoing technical relationship with us.

16 Flowsheet improvements for the real world How others have gained from Albion Process™

GeoProMining Gold Nordenham hits quadruple plant recovery 98.8% recovery GeoProMining (GPM) successfully be confi gured such that the CIL would The Albion Process™ plant at increased recovery from sulphide treat fl otation tailings and oxidised Nordenham was commissioned in concentrates in their Ararat plant residue from the Albion Process™. March 2011. The feed to the plant is also from 20% to over 95%, defying fi nely ground lead/zinc concentrate The design basis for the Albion expectations and targets. The plant from the McArthur River mine. Process™ at GPM was oxidation of was commissioned in June 2014 100,000 tpa of concentrate to give an Nordenham has a throughput of and achieved full capacity after overall production of 100,000 ozpa of 36,000 tpa of concentrate, and the three months. gold from concentrate and fl otation plant produces 16,000 tpa of cathode GPM own and operate the Zod Gold tailings. The design recovery of gold zinc from the concentrate, at a recovery Mine and Ararat Processing Plant from the Albion residue was 92% but of 98.8% w/w. in Armenia to produce gold and the plant frequently achieves over 95% The Albion Leach Reactor consists of an silver bullion. In order to expand, recovery with an overall plant-wide 800 m3 and a 280 m3 reactor in series. GPM needed to treat the underlying design recovery of 86% but commonly The lead residue from the Nordenham sulphide material at the Zod mine achieving 88%. Albion Process™ plant is also sold which achieved around 20–30% The refurbishment project was locally to secondary lead producers. gold recovery through their existing commissioned in June 2014, with ramp- conventional Carbon in Leach up occurring for the remainder of 2014. (CIL) fl owsheet. The plant has achieved and exceeded In 2010, GPM approved a refurbishment nameplate production, treating in fact project at the Zod Mine and Ararat 120,000 tpa concentrate with an overall Processing Plant – in increased production of 129,000 ozpa. crushing capacity to deal with the Further, GPM successfully achieved harder ore and a refurbishment and an overall 88% plant-wide recovery Other sites re-commissioning of the existing exceeding the 86% design target due to include San Juan fl otation plant. better than design performance in the de Neiva, Las They added to this the installation of Albion Process™. Lagunas and Sable. a new Albion Process™ plant for the Despite wild fl uctuations in grade Case studies oxidation of the sulphide concentrate and sulphur content, GPM has kept available on prior to its treatment in the existing recoveries above design using the request. CIL plant. The new fl owsheet would Albion Process™.

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Glencore Technology Glencore Glencore Technology develops innovative products Glencore is one of the world’s largest global diversifi ed natural that help mining operations extract more from resource companies and a major producer and marketer of more their fl owsheet. ISASMELT™, IsaKidd™, IsaMill™, than 90 commodities. The Group’s operations comprise around Jameson Cell and Albion Process™ have been 150 mining and metallurgical sites, oil production assets and developed in the real world and proven in more agricultural facilities. With a strong footprint in both established than 500 operations across every continent. and emerging regions for natural resources, Glencore’s industrial and marketing activities are supported by a global network of more Many of our technologies have been developed than 90 offi ces located in over 50 countries. and proven at our own sites, like ISASMELT™ and IsaMill™, which were pioneered by Mount Isa Mines Glencore’s customers are industrial consumers, such as those in and helped revolutionise mining and smelting the automotive, steel, power generation, oil and food processing processes all over the world. sectors. We also provide fi nancing, logistics and other services to producers and consumers of commodities. Glencore’s companies Our approach is premised on a technology employ around 146,000 people, including contractors. partnership to provide a full product and service offering, including process fl ow design, Glencore is proud to be a member of the Voluntary Principles engineering, equipment supply, commissioning on Security and Human Rights and the International Council on and operational expertise, and ongoing process Mining and Metals. We are an active participant in the Extractive and maintenance support. Industries Transparency Initiative.

CONTACT Glencore Technology Pty Limited ABN 65 118 727 870 Level 10, 160 Ann St Brisbane QLD 4000 Australia T. +61 7 3833 8500 F. +61 7 3833 8555 E. [email protected] South America · T. +562 2342 9000 Africa · T. +27 82 441 7482 Russia & CIS · T. +7 985 928 44 87 D10_GLT3030A_08/19