Slide 1: Curragh Operations
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Slide 2: Wesfarmers Energy
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Slide 3: Location and operations
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Slide 4: Production and sales volumes FY 2004/05
FY 2004/05 Production Volume mt 7.0 Sales Volume Export mt 4.6 Domestic mt 2.5 Customers 14
Slide 5: Mine history and milestones
Mine opened 1983 Wesfarmers purchase of Curragh June 2000 Lease granted for Curragh East (+60Mt) October 2000 Mining commenced at Curragh East July 2002 CHPP Upgrades Aug 2002/Oct 2004 Awarded rights to Curragh North (‘CN’) December 2002 New mining lease granted CN (+130Mt) August 2004 Curragh North
Slide 6: Production history and Wesfarmers ownership
om NW ho OD ~s tonnes (m) Wesfarmers Ownership 4 —_—_——>> 1990 1992 1994 1995 1996 1997 1999 2000 2001 2002 2003 2004
Slide 7: Availability and cost of key inputs
e Availability and cost of key inputs ¢ Global shortage of earthmover tyres e Availability and cost of skilled labour e Industry-wide capital over-runs and delays
Slide 8: Curragh and Curragh North comparison
Area Disturbed by Mining ha 3,860 5,945 Deposit Strike Length km 13 30 Total Overburden Removal mbcm 97.3 131.7 Tonnes Mined mt 8.7 12.1 CHPP Capacity t/hr 1,200 1,600 Resource Complexity - raw coal types no. 3 6 Average Workforce (FTE incl contractors) no. 544 789 Activity Man-hours (FTE incl contr
Slide 9: Wesfarmers coal assets and reserves
Ini Premier, WA 100% Steaming 2,950 2,842 Curragh, QLD 100% Metallurgical 3,198 4,509 Steaming 1,695 2,052 Bengalla, NSW 40% Steaming 1,656 1,739
Slide 10: Mining
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Slide 11: Curragh brand and quality
e Established Curragh brand and quality ¢ Positioned as “independent” supplier ¢ Diversified product range e« World leading steel makers as key customers ¢ Positioned for future growth
Slide 12: Coal quality: ash and volatile matter
I) Ash in Coal % (adb) 145 17 #19 24 «42.23 «25 27 «229 «34 33 35 VM % (adb) Source: Barlow Jonker
Slide 13: Coal product range by type
Bla: Se 1 TT Ue LV Coking Cc Mv Coking Coal HV Coking Coal Semi Coking Coal oal ain yy perationalllouni
Slide 14: Markets
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Slide 15: Sales by region
TE sn Sale mim orth Asia Americas
Slide 16: Contract mix
LS TMNT TINA TiWHM«M«*«niiiinininncTTTC t D * Annual” 1 Year Contracts 8%
Slide 17: Rail and port capacity expansions
QR (Rail) Blackwater to Bluff Duplication September 2006 July 2007 CQPA (Gladstone Port) 3rd Train Dump Station July 2006 November 2006 * Curragh’s expected GCDS capacity in 2006/07 - 7.5mt ¢ 2006/07 capacity now uncertain
Slide 18: Blackwater rail duplication
Bluff to Blackwater Duplication Gregory Mine 165 550 Kasetral Curragh (2060km) {12.8.8 Grane, Eesha (15 O48) lickwater & cel = Koorilyah Boergaun (L482) Laleham _ (aL. 0Mkin) Bashiniz aan oo Kinrule( (8.5 (diem) +47 kminlength. « Earthworks to commence March 2006 * Construction program is under revi
Slide 19: Third Rail Unloading Station
Third Rail Unloading Station
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Slide 21: Curragh North overview
« 20km north of Curragh « +130mt of mineable reserves « 40 year mining lease « linked by private road to Curragh « limited site facilities « developed as a remote pit « all coal processed at Curragh
Slide 22: Curragh North benefits
° Increased coal reserve base ° Extended open cut mine life to 2025 ¢« Capital Expenditure $360M e Increased export volumes e New “PCI” product ° Supporting current customers
Slide 23: Curragh North pits and mining method
3 pits - North (Pit U), Central (Pit T) and South (Pit S) Mine Lease area 4800ha Adjacent to the MacKenzie River Mining west to east 2 draglines from Curragh for overburden removal Truck and shovel pre-strip Coal to Curragh for processing and rail
Slide 24: Curragh North site layout
OTT TTT ALT MINING BLOCKS SPOIL DUMP > Out of Pit Spoil revegetated as soon as practical. COAL DUMP HOPPER > Coal crushed at CN FLOOD PROTECTION > Conveyor to Curragh. LEVEE MINE INFRASTRUCTURE MacKENZIE RIVER > Minimised by utilising Curragh Mine facilities. » Limited On site facilities MINING LEAS
Slide 25: Seam coal reserves
h -SIIEIIEIO E10 CO II ICIPI ICI Avian Seam Coal Ravloge
Slide 26: Contractor boxcut and pre-strip
e Contractor boxcut and pre-strip for first 5 years ¢ Curragh infrastructure utilised for: - Coal handling and crushing - Coal processing Stockpiling Rail load-out * Dragline relocations to CN in 2006 & 2007
Slide 27: Coal transport to Curragh
HTT e Initial Development Phase: - Contractor road train - Up to 500,000 tonnes per month e« Long Term: - 20.3km single flight conveyor Benefits: - Avoids extensive upgrade of existing handling system - Lowest cost - Lowest operating risk - Sized for future growth
Slide 28: Coal handling and preparation plant
Handli paration P| general arra eS CHPP Plant 7 Feed | eine Raw Coal Primary Coking coal Ww. pees Distribution Desliming Dense Product 2 Modules Screens Medium Cyciones LMPE “banana” ABON roller screens screens
Slide 29: CHPP facts
« 4,320 sq m area « 27m high « built 1982/3 « 2 parallel modules + 24 screens « 43 pumps « 444 electric motors « 26,000m piping
Slide 30: Coal Handling and Processing
Coal Handling & Processing
Slide 31: Curragh North construction and mining progress
e Curragh North - civil construction Civil Contract signed Oct 2004 Civil works commenced Nov 2004 Completed Dec 2005 On time and within budget; Lost time injury free Materials handling system due for completion in Q4 CY 2006 e Curragh North - mining Mining lease granted July 2004 Mining Contract si
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