Turning Capex into Opex Guaranteed power for remote mines in Africa

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1 Turning Capex into Opex Guaranteed power for remote mines in Africa Manuel Duggal, Business Development Manager Mining and Oil & Gas, Aggreko International

2 Aggreko Turnkey rental power stations Aggreko is not a generator rental company, it offers complete turnkey temporary power and temperature control solutions. Design Mobilisation and Installation Power Generation and Distribution Mine Shaft Air Conditioning and Cooling Operation and Maintenance Decommissioning and Demobilisation

3 Applications served in Mining Power during mine construction Power where grid supply is unavailable or unreliable Early power before grid supply or main power plant is installed Supplemental power during upgrade/ expansion of mine Emergency breakdown coverage

4 Equipment Generators Generators from 30KVA up to 350KVA are housed in robust steel canopies and contain fork pockets, lifting eyes Generators from 500KVA up to 1250KVA are housed in 20 ISO standard containers Suitable for low / high ambient temperatures and harsh environments Dual frequency capable 50 or 60 cycles

5 Power Generation Equipment 6 x 1MW units combine to provide 5 MW of continuous temporary power HV Transformer HV supply direct to client

6 Typical 6 Pack Power Project (5 MW)

7 Benefits to the mining customer Low installed capacity cost per KW No expenditure on capital equipment Availability of power within days of contract signing Minimal site preparation High flexibility for upsizing or downsizing plant capacity High degree of reliability Convenient extendible option circumvents long term commitment Risk mitigation

8 Mongolia Early production Situation The second largest copper and gold mine was being constructed in the Gobi Desert, Mongolia. With no utility power available to begin sinking shaft, underground mining was a problem. Solution Aggreko provided 4MW temporary power package in a standard 6 pack configuration, five 1MW units plus HV transformers.

9 Chile- construction power Situation CODELCO s construction of one of the biggest copper projects, Gaby Mine, required temporary power during the 17 months of construction. Solution Aggreko presented a power plant capable of delivering a continuous power output of 23kV for all the 17 months of construction.

10 Australia bridging power Solution Downer RML at Area C Mine, Newman Australia, needed a temporary source of power until the grid supply could be connected in the area. Situation - Aggreko supplied a power package of 11MW at 33kV

11 Guinea breakdown and maintenance Situation - Alumina Company of Guinea needed power to install a new boiler, deal with a generator breakdown and an explosion of the existing boiler Solution - Aggreko provided and installed, in less than 2 weeks, a power plant supplying continuous power of 5.95MW / 5.5kV.

12 South Africa Wheeling power Situation Due to a power crisis in South Africa in 2008, guaranteed power was required for a mine already connected to the grid with no availability. Solution Aggreko supplied a 10 MW plant at Mossel Bay in a wheeling power agreement. i.e. Aggreko guaranteed the power to the grid who in turn guaranteed it to the mine.

13 Eritrea base load for gold processing plant Situation Due to the remote location of the mine (300km from the coast) the short construction timeframe and the relatively short mine life, the client was looking for a guaranteed power supply without having to invest in infrastructure. Solution Aggreko supplied a 20 MW plant at Bisha as the sole source of power to the processing facility. The initial agreement has an option to extend on a year by year basis.

14 DRC mine construcion and processing plant Situation Due to the remote location of the mine power is required in 3 stages for construction; for initial production over the first 2 years and for the main production where a hydro powered plant has been planned. Solution Aggreko supplied a 2 MW plant at the mine site for the camp and initial construction power. This will increase to 11MW as and when the mining operation is big enough to require it. Once the HEP plant is installed and running, the equipment may be transferred to another site or off-hired.

15 Financial Benefits Complete turnkey solutions Rapid deployment, installation and commissioning No capital expenditure, only monthly cost No amortisation of power station over mine life Flexible phased delivery, reducing cost Guaranteed power what all miners want What does it cost?

16 Aggreko plc An overview UK FTSE-100 listed company, headquartered in Scotland Split into 3 main divisions US, Europe and International World leader in temporary power generation and temperature control services Over 45 years of worldwide experience

17 Global capability and reach: 4,000+ employee base 6,000+ generators Operates from 133 locations in 30 countries 4 main hubs for mobilisation Dubai, Holland, Singapore and Panama In 2009, served customers in over 100 countries

18 Quality, Health, Safety and Environment Aggreko processes are ISO 9001:2008 compliant Environmental Health and Safety ( EH&S) system implemented at all sites EH&S kits delivered to every site with initial mobilization EH&S training provided to employees in Basic first aid Fire fighting Crane & forklift operation High voltage operation Defensive driving All sites audited by trained auditors covers ISO 9001 and EH&S procedures EH&S key performance indicators (KPIs) monitored and reported to the Aggreko Senior Management

19 Thank you Questions?