Chelopech Mining EAD General Overview Presentation November 2010 - PowerPoint PPT Presentation

Chelopech Long Section Sever shaft Zapad shaft Kapitalna shaft Iztok shaft Nadejda Decline 405 103 16 151 150 19 CW link 149 20

Mineral Resources – Dec 2008 Resource Estimate by Category 50 45 Inferred Indicated Measured 40 35 Tonnes (*million) 30 25 20 15 10 5 0 RSG-March RSG-Nov FinOre_Aug RSG-Aug RSG-Oct Coffey-Dec Coffey-Jan 2003 2004 2005 2006 2007 2008 2009 (3.2g/t cutoff) Year • Reduce cutoff and apply new gold equivalent formula - 35% increase in tonnes and 20% increase in metal. 21

Geology Reserves Mineral Reserves (NI43-101 Compliant) Metal Proven & Probable Tonnes Grade Ounces (Million) (g/t) (Moz) Gold 23.1 3.6 2.7 Tonnes Grade Pounds (million) (%) (Mlb) Copper 23.1 1.2 640 Ore locations and distribution of reserves. • Mineral Reserves performed by Coffey Mining, dated October 2009 which formed part of the 2009 DFS; includes mining depletion; Cut-off @ 3.2g/tAuEq, AuEq = 2.5*Cu% + Au g/t. 22

Chelopech Performance 60.0 EBITDA 58.6 57.8 57.6 50.0 40.0 $ million 37.7 30.0 28.8 20.0 19.6 10.0 0.0 2005 2006 2007 2008 2009 2010 (Q1-Q3) Site operating EBITDA 120,000 120 118 100,000 100 99 93 80,000 80 85 82 $ million tonnes 75,542 71,799 60,000 60 66,712 64,939 Sales 56,760 52 55,178 40,000 40 43,990 20,000 20 22 0 0 23 2004 2005 2006 2007 2008 2009 2010 (Q1-Q3) sales - revenue, $M sales - DMT

Chelopech Performance 80,000 300 70,000 250 Concentrate (mt) 60,000 200 50,000 troy oz '000 mt 40,000 150 30,000 100 Au (troy oz' 000) 20,000 50 10,000 Cu (mt) 0 0 2005 2006 2007 2008 2009 2010 (F) Concentrate produced (mt) metal in conc - Cu (mt) metal in conc - Au (troy oz), '000 24

Mill/Mine Expansion Project • “Upgrades to existing site infrastructure and process facilities to meet the projected increased ore production and mill throughput targets”, broadly defined by; – Installation of an under ground crushing/ore handling system – Upgrade of the mine ventilation system to allow for increased utilization of mobile equipment – Upgrades to Process Plant including installation of SAG mill, additional flotation capacity, upgrade of tailings facility, and water recovery. – Construction of Paste Fill Plant and related underground reticulation system. – New Run-of-Mine pad and crushed ore stockpile and mill feed system. 25 25 25 25 25

Production Schedule – Mill 2,500 6.0 2,037 2,025 2,008 2,003 2,003 2,003 5.0 1,935 1,935 2,000 1,801 4.7 4.5 4.5 4.3 4.0 4.1 4.2 4.1 Cu (%); Au (g/tonne) 3.9 3.8 1,500 3.8 1,336 ('000 tonnes) 3.6 3.0 1,002 981 1,000 2.0 1.5 1.5 1.5 1.5 1.4 1.4 1.4 1.8 1.3 1.3 1.3 1.1 500 1.0 0.7 0 0.0 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 26 Ore processed Grade Cu (%) Grade Au (g/tonne)

Production Schedule – Concentrate 180,000 500 156,322 151,920 450 160,000 145,481 140,393 400 140,000 132,249 124,912 129,246 350 117,698 120,000 102,472 300 ('000, troy oz) 100,000 (mt) 250 75,470 80,000 72,318 71,657 200 60,000 150 160.0 147.0 145.8 137.5 135.0 133.9 131.8 40,000 124.1 100 94.4 83.1 20,000 25,793 25,067 69.2 50 24,004 23,165 62.8 21,821 21,326 20,611 19,420 16,901 12,469 11,864 11,932 0 0 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 27 Concentrate produced (mt) metal in conc - Cu (mt) metal in conc - Au ('000; troy oz)

Mine/Mill Expansion – schedule 2009 2010 2011 2012 Task Name ID Start Finish Duration Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 1 Mill Expansion 09/11/2009 30/09/2011 99w Operating Permits (Area 00) 03/01/2011 30/03/2011 12.6w 2 Primary Crushing (Area 11) 30/09/2010 23/12/2010 12.2w 3 Grinding (Area 13) 23/11/2009 28/12/2010 57.4w 4 Flotation (Area 14) 18/09/2009 30/12/2010 67w 5 Concentrate Handling (Area 15) - wet 08/02/2010 16/12/2010 44.8w 6 Concentrate Handling (Area 15) - dry 26/04/2010 18/03/2011 47w 7 8 Concentrate Reagents (Area 16) 16/04/2010 14/01/2011 39.2w Paste Backfill Plant (Area 76) 03/08/2009 03/11/2010 65.6w 9 Lime Slaking (Area 82) 11/08/2009 29/03/2010 33w 10 Other Reagents (Area 84) 04/01/2010 23/07/2010 29w 11 Fresh Water Services (Area 86) 30/09/2010 30/09/2011 52.4w 12 13 Process Water Supply (Area 87) 11/01/2010 05/08/2011 82w Air Services (Area 88) 30/09/2010 06/01/2011 14.2w 14 Power Generation and Electrical (Area 94) 22/07/2010 30/12/2010 23.2w 15 16 Mine Expansion 01/10/2009 28/02/2012 125.8w 17 18 Operating Permits (Area 00) 29/11/2011 28/02/2012 13.2w Surface Stockpile and Mill Feed System (Area 11) 14/12/2009 08/07/2011 82w 19 Ventilation (Area 262) 04/01/2010 31/03/2011 64.8w 20 Development (Crushing and Conveyor Incline, incl. 01/01/2010 29/07/2011 82.2w 21 28 portal) (Area 27) Installation (Crushing and Conveyor Incline) (Area 27) 22/03/2010 29/11/2011 88.4w 22

Financial Results Mine Mill Internal rate of return – after tax, % 41.7 Capital Payback, years 1.4 (from start up: Mine Mill 2012) NPV, M$ @ 7.5% discount rate 170.2 Assumptions 2011 onwards Copper price $1.75 Gold price $800 Exchange rate $/EUR $1.35 29

Economics – Cashflow 400 400 Cumulative Project Cash Flow - pretax 381 300 300 Cummulative (million $) Assumptions 2011 onwards Yearly (million $) 200 200 Copper price $1.75 Gold price $800 Exchange rate $/EUR $1.35 100 100 - - 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 Project Cash flow - pretax (65) Cumulative Project Cash Flow - pretax (100) (100) 30

Sensitivity – IRR (after tax) AFTER TAX INTERNAL RATE OF RETURN SENSITIVITY 80% $1000 70% $900 60% $2.10 50% After tax IRR (%) $1.90 40% $1.60 30% $700 $1.40 20% Gold Price $600 Copper Price 10% Capital Costs Operating Costs 0% -30% -20% -10% 0% 10% 20% 30% Percentage Change in Parameter 31

Sensitivity – NPV (after tax) AFTER TAX NET PRESENT VALUE SENSITIVITY $350 $1000 $300 $900 $2.10 $250 After tax NPV at 7.5% ($USM) $200 $1.90 $150 $1.60 $1.40 $100 $700 Gold Price Copper Price $50 Capital Costs $600 Operating Costs $0 -30% -20% -10% 0% 10% 20% 30% 32 Percentage Change in Parameter

Cash Cost per tonne (USD) 70 58.6 60 55.7 55.1 47.3 46.4 50 44.1 $/ tonne 37.3 40 33.0 29.8 30 20 10 0 2005 2006 2007 2008 2009 Q1 '10 Q2 '10 Q3 '10 after expansion cash cost per tonne (incl. royalty) cash cost per tonne (excl. royalty) 33

Ore handling infrastructure Vyara Decline Hoisting Haulage to the dump Dump and wagon loading 34

Chelopech Mining EAD General Overview Presentation MINE November 2010 www.dundeeprecious.com 35

Chelopech Mining Methods Old – Sublevel Caving New – Sublevel Longhole Stoping Ventilation Underground water impact 36 Ground conditions impact

Stope sequencing, block 150 37

Mining Methods Level 330 Level 300 Level 270 Block 150 38

Stope 9А Level 330 Stage 1 Level 300 60 m Stage 2 Level 270 Block 150 39

Level 330 Slot raise Stage 1 Down drill blasting holes Level 300 Upper drill blasting holes Stage 2 Level Block 150 270 Stope 9А

Level 330 Stage 1 Mined stope Stage 1 Level 300 3D model (CMS) Stage 2 Level Block 150 270 Stope 9А

Level 330 Stage 1 Pillar rings Level 300 Slot raise Stage 2 Upper drill blasting holes Level 270 Block 150 Stope 9А

Level 330 Stage 1 3D model (CMS) Level 300 Mined stope Stage 2 Stage 1 and 2 Level 270 Block 150 Stope 9А

Stope ready for fill Level 330 Level 300 Level 260 Block 150 Stope 9А

Backfill • Dry Rock fill • CRF • HF • Paste fill • No waste stockpile 45 45

Stope preparation for backfill Level 330 Build Level 300 barricades Stage 1 Level 260 Block 150 Stope 9А

Stope backfill Stage 1 Level 330 Level 300 Stage 1 Level 260 Block 150 Stope 9А

Stope backfill Stage 1 Level 330 Level 300 Stage 1 Level 260 Block 150 Stope 9А

Stope preparation for backfill Level 330 Stage 2 Level 300 Build barricades Level 260 Block 150 Stope 9А

Stope backfill Stage 2 Level 330 Stage 2 Level 300 Level 260 Block 150 Stope 9А

Stope backfill Stage 2 Level 330 Stage 2 Level 300 Level 260 Block 150 Stope 9А

Modern Equipment • Front-end loader • Jumbo Axera • Dump truck • Drill rig • Electrical and mechanical maintenance – planning, maintenance and repair – Mobile equipment – Stationary equipment 52 – Electrical equipment

Achievements in maintenance • Central workshop: – Light Vehicle Service – Machine Shop – Rebuild Section – Drifter Workshop – Manufacture Workshop mobile equipment planned overhauls 53

Achievements in maintenance Manufacture and machine workshop Savings: $480K / annually Drifter workshop Light Vehicle Service Savings: $130K / annually 54

Achievements in maintenance Simulator Development and Technology Centre Hydraulic stand Cabin: Toro 0010 Engine: Detroit S50 55

Mine Production Ore Hoist 1,000,000 900,000 800,000 700,000 tonnes 600,000 500,000 400,000 1,084,315 624,310 911,179 920,150 906,070 911,382 957,042 300,000 200,000 100,000 0 2004 2005 2006 2007 2008 2009 2010 (F) • Reliable production at 1 mtpa 56

Ore handling infrastructure Hoisting Vyara Decline Haulage to the dump Dump and wagon loading 57

Underground crusher and conveyor Sever shaft CV7 Iztok shaft Zapad shaft CV6 Nadejda Decline Kapitalna shaft CV5 103 CV4 405 151 CV3 150 19 CW link Level 195 CV2 Level 165 total Project to-day 149 % distance plan actual compl. 58 45% conveyors 4,295 2,511 1,941 62% other 1,000 951 620

Conveyor Project Layout 360 330 Fresh air raise Ore pass 330/195 300 Tip 260 Block 151 225 225/195 Ore bin 195 Fresh air raise 165 Return air raise Crusher Chamber CV1 59

Underground crusher and conveyors 60

Conveyor Project 61

Agreed conveyor decline layout - portal 62

Conveyor Decline Layout 63

Vyara Portal The excavation and concrete work for the external Portal

Sever Fan • Updated ventilation model to meet life of mine requirements • Exhausts at the rate – Current: 154 m 3 /sec – Design criteria: 235m3/sec – The fan chosen and currently being engineered: 265 m 3 /sec 65

Chelopech Mining EAD General Overview Presentation PROCESS PLANT November 2010 www.dundeeprecious.com 66

Process Plant – treated ore Treated Ore 1,200,000 1,000,000 800,000 tonnes 600,000 1,001,819 400,000 623,810 851,964 952,753 913,440 900,563 980,928 200,000 0 2004 2005 2006 2007 2008 2009 2010 (F) 67

Process Plant – recoveries Cu Recovery 100 Model Cu Recovery Cu Recovery 80 recovery (%) 60 40 20 85.95 84.56 83.66 82.47 84.99 85.36 86.62 87.08 86.51 85.98 86.85 87.21 0 Au recovery 2004 2005 2006 2007 2008 2009 100 CuRec= Model Au Recovery Au Recovery 101,9503-+0,1326*(Cu %)-0,186*(Ag ppm)-1,3782*(S/Cu%) 80 recovery (%) 60 40 20 58.10 58.21 49.10 49.28 55.70 57.96 61.17 65.18 62.17 61.17 61.85 64.64 0 2004 2005 2006 2007 2008 2009 AuRec= 68 72,4367+24,1769*(Cu%)-0,2818*(Ag ppm)-3,012*(S%)

Process Plant – consumables PAX consumption (gs/dmt) 100 Power consumption ( kWhrs/dmt) 90 Frother consumption (gs/dmt) 80 grs/dmt ; kWhrs/dmt 82 80 79 77 70 70 60 66 50 40 30 20 35 35 35 34 34 32 10 Grinding Media consumption 10 31 27 25 25 34 9 9 0 Lime consumption 8 8.69 2004 2005 2006 2007 2008 2009 7 7.56 6 6.67 kgs/dmt 5 5.50 4 4.44 3 3.72 2 1.47 1.63 1.50 1.45 1.45 1.48 1 0 2004 2005 2006 2007 2008 2009 69

Process Plant Flowsheet - current Х-Н 750 COB Х-Н 750 ШАХТА КАПИТАЛНА shaft capitalna jaw crushers СИЛОЗ ЗА CEMENT Наклонка"Надежда" ЧЕЛЮСТНИ НАТРОШЕНА Decline ТРОШАЧКИ РУДА FOB H2O washing screen ПРОМИВНА ПРЕСЕВНА УРЕДБА dewatering screen M1 - P ОБЕЗВОДНЯВАЩО ПРЕЛИВ M2 - S СИТО ПРЕЛИВ М2 М1 ERAL КОНУСНИ ТРОШАЧКИ СОНДАЖ ПЪРВИ СТАДИЙ НА СМИЛАНЕ ВТОРИ СТАДИЙ НА СМИЛАНЕ con crushers BOREHOLE Н-4000 КМДТ Н-3000 ПРЕСЕВНИ УРЕДБИ screens СГЪСТИТЕЛ 12 м slime thickener Scavengers floatation КОНТРОЛНА МЕДНА ФЛОТАЦИЯ ДЕНВЕР 300 РЕЗЕРВОАР filtration feed tank Roughers floatation ОСНОВНА МЕДНА ФЛОТАЦИЯ -ДЕНВЕР 500 КЕРАМИЧЕН ФИЛТЪР СС 30-35 ceramec filter МЕДЕН КОНЦЕНТРАТ AMDEL CONC copper conc Cleaners floatation МЕДНИ ПРЕЧИСТКИ-ДЕНВЕР 30 СГЪСТИТЕЛ 18 м СГЪСТИТЕЛ 18 м СГЪСТИТЕЛ 18 м thickener thickener thickener 70 ХВОСТОХРАНИЛИЩЕ TMF

SAG Mill assembly 71

SAG Mill assembly SAG Mill lining 72

Concentrator upgrade New Mill Central Motor Control Center Flotation cells 73

Process Plant Flowsheet – 2011 COB AMDEL FEED ШАХТА КАПИТАЛНА shaft capitalna jaw crushers Наклонка"Надежда" ЧЕЛЮСТНИ CEMENT ТРОШАЧКИ SAG Mill ПРЕЛИВ М1 СОНДАЖ BOREHOLE ПОЛУАВТОГЕННА МЕЛНИЦА SAG Mill Roughers floatation AMDEL TAILS ОСНОВНА ФЛОТАЦИЯ -OK 100 Scavengers floatation КОНТРОЛНА ФЛОТАЦИЯ ДЕНВЕР 300 РЕЗЕРВОАР filtration feed tank Scavengers floatation КОНТРОЛНА ФЛОТАЦИЯ -ДЕНВЕР 500 ФИЛТЪР ПРЕСА КЕРАМИЧЕН ФИЛТЪР СС 30-35 Pressure filter ceramec filter МЕДЕН КОНЦЕНТРАТ AMDEL CONC copper conc Cleaners floatation МЕДНИ ПРЕЧИСТКИ-ДЕНВЕР 30 СГЪСТИТЕЛ thickener ХВОСТОХРАНИЛИЩЕ TMF 35 74

Process Plant Flowsheet – 2012 onwards COB AMDEL FEED jaw crushers Наклонка"Надежда" ЧЕЛЮСТНИ CEMENT ТРОШАЧКИ ПРЕЛИВ М1 SAG Mill СОНДАЖ BOREHOLE ПОЛУАВТОГЕННА МЕЛНИЦА SAG Mill Roughers floatation AMDEL TAILS ОСНОВНА ФЛОТАЦИЯ -OK 100 Scavengers floatation КОНТРОЛНА ФЛОТАЦИЯ ДЕНВЕР 300 РЕЗЕРВОАР filtration feed tank Scavengers floatation КОНТРОЛНА ФЛОТАЦИЯ -ДЕНВЕР 500 ФИЛТЪР ПРЕСА КЕРАМИЧЕН ФИЛТЪР СС 30-35 Pressure filter ceramec filter МЕДЕН КОНЦЕНТРАТ AMDEL CONC copper conc Cleaners floatation МЕДНИ ПРЕЧИСТКИ-ДЕНВЕР 30 СГЪСТИТЕЛ thickener ХВОСТОХРАНИЛИЩЕ TMF 35 75

Paste Plant • Progress – Commissioning completed on September 23 – Paste is being delivered underground and cement addition has been reduced from 7% to 4.1%. The completed Paste Back-fill plant and Surge tank Tailings slurry running 76 through the system

Paste Reticulation underground 77

Tailings Management Facility (TMF) • Designed area - 110 ha; • Designed capacity - 25-30 million m3; • As of Q3, 2010: – Occupied area – approx. 902 decares; – Filled volume – approx. 10.2 million m 3 or 15.3 million tons; 78 • Class 1 Hydro-Engineering Facility.

TMF Management PROGRAM FOR POLICY FOR TMF PREVENTING PREVENTION OF MANAGEMENT WATER FROM BIG PLAN POLLUTION EMERGENCIES OVERALL DESIGN FOR PROGRAM FOR CONSTRUCTION, PREVENTING AIR OPERATION POLLUTION INTERNAL AND DESIGN FOR EXTERNAL ENVIRONMENTAL CLOSURE AND EMERGENCY MONITORING RECULTIVATION PLAN ANNUAL DESIGN FOR HEALTH AND AUDIT REPORT EXPERTISE EXPERTS ENGINEERING/ MONITORING SAFETY PLAN OPERATIONAL SYSTEM OF THE FACILITY REPORT COMMISSION PLAN/ DESIGN PROCEDURES SHIFT REPORTS, ANNUAL REPORT AND DAILY AND FOR TMF WORKING MONTHLY MANAGEMENT INSTRUCTIONS REPORTS AND CONTROL 79

Projects – Rock Buttressing of the Main Embankment • The project to be completed in 2010 80

TMF Phase 2 Progress on the lift of the Dam Wall and the Buttress 81

TMF wall buttressing Before April 2010 After November 2010 82

Chelopech Mining EAD General Overview Presentation Environment and Sustainable development November 2010 www.dundeeprecious.com 83

Background – Srednogorie region • Chelopech Mining is situated in traditional old mining region; • Since 90s of the last century neither state nor industry care for the environment; • Damaged areas from past mining activities can be seen all around the region; • Three mining companies (two open pits, one underground mine) and one smelter operate in the region; • In the region: five TMFs constructed; one of them already rehabilitated. 84

Process Plant Flowsheet - future • Environmental Monitoring; • Environmental Projects; • Environmental Procedures and Permits; 85 • Environmental Reporting.

Environmental Monitoring & Control • All environmental components are monitored – weather conditions, air, water, noise, blast & vibration, soil & vegetation, biodiversity; • Monitoring net installed at Chelopech, Chavdar and surroundings, incl. Zlatitsa; • Submission of results to competent authorities and to stakeholders, incl. data, analysis and mitigation measures; • Regular sites inspections and audits 86

Environmental Performance • Areas for improvement: – Water conditions: • Usage of fresh water with no drinking properties for toilets and bathrooms; • Discharge of not treated domestic waste water to the environment; • Discharge of the TMF decant water to the environment; • TMF effect on ground water; – Fugitive and non-fugitive dust emissions • Communication with the stakeholders on complaints for noise, dust and cracks in the houses – Noise – from ventilation shafts; – Transport of concentrate and cement; – Complaints for Cracks in the houses. 87

Mitigation measures in place (1) • Pre-feasibility study for drinking water supply and domestic waste water treatment plant; • Zero discharge in normal weather conditions: – Improvement of the recycling water system; – Paste plant commissioning and production expansion ; • Further groundwater modeling to assess: – Effects to groundwater movement and quality that may arise when groundwater extraction from the mine is stopped, and – Further geochemical and groundwater modeling to assess effects of seepage from the TMF both during operation and post operation/closure phase. 88

Mitigation measures in place (2) • Irrigation, regular washing and cleaning of the internal industrial roads and streets from the approved transport scheme; • Reconstruction of the roads and other infrastructure projects; • Reduction of the dust emission sources with SAG mill commissioning and relocation of the Primary crusher underground; • Pre-feasibility study for refurbishment of the railway siding located on the Company site and construction of a concentrate/goods handling facility; 89

Discharged water • Water discharged in Topolnitsa River, permitted amount - 638,750 m 3 /annum: 700,000 DISCHARGED WATER QUANTITIES 2004 - 2010(m3) 600,000 500,000 400,000 300,000 200,000 100,000 0 2004 2005 2006 2007 2008 2009 2010 (Q1-Q3) • As result of the Mine/Mill Expansion Project the water balance model developed by KP showed 0 discharge in normal weather conditions 90

Rehabilitation projects – I stage old buildings and stock piles What Has Been Done: Before 2004 2004-2005 91 Autumn 2006

Rehabilitation projects – II stage surface cave What has been done: Before 2005 May 2009 92

Awards 93

Buffer zone around TMF (west side) The zone was rehabilitated with native species April 2010 June 2010 94

Rehabilitation project – III stage waste rock stockpiles (ongoing) What has been done: August 2010 Noise reduction November 2010 project at the ventilation shaft – executed. 95

Environmental Permitting • Permits for water consumption from a surface water: – Kachulka Dam; – Dushantzi Dam; – Vozdol River (for exploration). • Permit for ground water consumption from the Chelopech mine; • Permit for waste water discharging; • Permit for temporary waste collection and storage; • TMF Management Plan and Application for Permit – submitted in MOEW on March, 31 2010. 96

Environmental Projects • Closure and Rehabilitation Project (Entire Operation); – Approved by MEET (Ministry of Economy, Energy and Tourism) and MOEW in 2010; – Project costing app. $ 25M; – Financial guarantee for the project implementation (bank guarantee or alternative) - due November, 2010. • Hazardous Waste Storage – design done; construction forthcoming; • Domestic Waste Water Treatment Plan – design in 2010; construction 2011. 97

Community Dialogue • Transparency and dialogue – Information centers – link company and community – Informal meetings – Individual visits to residents and neighborhoods Access to up-to date information/ documents Easy way of asking difficult questions Job vacancies announcement Preparation of information materials • Stakeholders dialogue – Attendance and participation in municipal council sessions – Information meetings – Open doors days – Engagement with company/ community projects – Grievance mechanism 98

Social Responsibility • Investment in local communities infrastructure – 2010 Social Programme – 1MBGN to 5 municipalities • Investment in education – Chelopech Mining Private English Language School – Schools in Chelopech/Chavdar – Kindergartens in the region – Joint Apprenticeship programme with Pirdop Mechanical school Chelopech Mining winner of 2010 Corporate Social Award of the Bulgarian Mining and Geology Chamber • Investment in culture – Preservation of regional cultural traditions and rituals • Investment in sport – Supporting sports clubs nationally and locally • Support to Zlatitsa Orphanage 99 and Vulnerable people