bulyanhulu gold mine site visit september 15th,...
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Buly June 2010BGML Cost Review – July 2010
Disclaimer
Important Notice
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Buly June 2010BGML Cost Review – July 2010
Bulyanhulu History
Safety & Health Performance
Operation Overview
– Business Environment
– Asset Overview
– Geology, Reserve/Resource
– Mining
– Processing
– 2010 Performance Summary
Strategic Priorities
Project Pipeline
Bulyanhulu History
Buly June 2010BGML Cost Review – July 2010
BulyanhuluLocation/History
Asset LocationLocation Overview
Mine History
High grade, narrow vein, steeply dipping orebody
Underground gold mine owned and operated, by Bulyanhulu Gold Mine Ltd
Located in the Kahama District, in the Shinyanga Province of northwest Tanzania, 55km south of Lake Victoria
Access to Bulyanhulu is by road from Mwanza (155km) or Kahama (55km) and by air through a owner-operated airstrip within the property
Well-established mine site with an administration office, a mill, laboratory, warehouse, clinic, security installations, housing, and other support structure
Tanzanian workforce is drawn from surrounding communities
1980 to 1982: First exploration by State Mining Corporation
1983 to 1985: JV withOuto Kumpu and Kone Corp to conduct further drilling
1994
1976: Gold first discovered at Bulyanhulu
1976 1980 1999
1999: Acquisition of Sutton Resources by Barrick (8.8 Moz Resource)
1994: Prospecting license granted to Sutton Resources
1989 to 1992: Placer Dome JV to manage the property and conduct exploratory work
2001
2001: Commencement of production
19921985
North Mara
Buzwagi
Tulawaka Bulyanhulu
T A N Z A N I A
2009
2009: Produced ±2.7
Moz to date
2010
2010: H1 production 132koz
Buly June 2010BGML Cost Review – July 2010
Bulyanhulu History
Safety & Health Performance
Operation Overview
– Business Environment
– Asset Overview
– Geology, Reserve/Resource
– Mining
– Processing
– 2010 Performance Summary
Strategic Priorities
Project Pipeline
Safety & Health Performance
Buly June 2010BGML Cost Review – July 2010
Current Status
Strong corporate and regional focus on safety issues
Taproot investigation and presentation, Management Review
Site wide Risk Assessments
Good emergency response capability
Reduction of Lag Indicators
Significant reduction of Mobile equipments related incidences.
Effective use of RIMS for Action Plan tracking & Management
Future Opportunities
Further develop a risk aware culture
System focus needs to be balanced with behavioral focus
Improve Hazard Identification
Improve quality of frontline Safety Supervision
Security & Community related incidents
Health Issues – Malaria, HIV/AIDS
Increasing geotechnical and seismic related monitoring as depth increases
Improving lead indicators
Safety & Health Performance
Buly June 2010BGML Cost Review – July 2010
Bulyanhulu History
Safety & Health Performance
Operation Overview
– Business Environment
– Asset Overview
– Geology, Reserve/Resource
– Mining
– Processing
– 2010 Performance Summary
Strategic Priorities
Project Pipeline
Operation Overview
Buly June 2010BGML Cost Review – July 2010
Top External Forces
Political Government operation and government relations including legislative changes.
Media
Economic
Rising costs; Labor & commodities
Gold & Copper price
Challenging road / rail / port infrastructure
Social
Community unrest from failure to realize benefit
Basic infrastructure (education, health, security) is not optimum
Crime / Corruption and Legacy issues
Technological Sustainable power, water and energy
Business Environment
Buly June 2010BGML Cost Review – July 2010
2007 2008 2010 H1
Production (koz) 243 249 132
Cash cost ($/oz) 456 651 540
Gold grades (g/t) 9.84 8.75 9.30
Capex ($mm) 60 60 33
BulyanhuluAsset Overview
Underground gold mine owned and operated, by Bulyanhulu Gold Mine Ltd
Located in the Kahama District, in the Shinyanga Province of northwest Tanzania, 55km south of Lake Victoria
Production commenced in 2001
High grade, narrow vein, steeply dipping orebody
Conventional gravity, sulphide flotation and carbon-in-leach (CIL) processing plant producing copper/gold concentrate and doré gold bars
Copper Concentrate at 14–18% Cu, includes high grade gold (200g/t Au) and silver (180g/t Ag)
The concentrate is sold to offshore copper smelters
Note: ¹ By-product credits have been included
Note: Mineral Resources are exclusive of Mineral Reserves
Capacity
Historical Operating Metrics
Mineral Reserves and Resources at 31st December 2009Asset Overview
Ore (Mt) Grade (g/t) Contained (Moz)
Reserves
Proven 1.3 13.01 0.537
Probable 23.8 12.80 9.783
Resources
Measured - - -
Indicated 10.3 10.83 3.584
Inferred 6.6 14.64 3.116
Total 42.0 12.61 17.054
– Ore production is currently ±3,300 tpd, (1.2 Mtpa)
– Shaft capacity is in the range of 5,000 -5,500 tpd
2009
200
638
8.99
56
Buly June 2010BGML Cost Review – July 2010
Mining Highlights
Bulyanhulu is an underground mine with shaft and ramp access
Shaft Capacity is in the range of 5,000–5,500 tpd
Four current underground mining methods have been employed at BGML:
– Longhole sublevel stoping (62%)
– Conventional cut and fill stoping (12%)
– Mechanized drift and fill (overhand) stoping (7%)
– Alimak stoping (19%)
Life of Mine plan average mining rate 1 million tonnes of ore mined per annum mined from two reefs
Mobile equipment fleet includes drill jumbos, scoops, dump trucks, rail locomotives, utility vehicles and hand held equipment
2007 2008 2009 2010 H1
Ore Hoisted (tonnes) 830,015 727,153 966,900 470,000
Gold Head Grade (g/t) 9.84 8.99 8.75 9.30
BulyanhuluMining Operations
Buly June 2010BGML Cost Review – July 2010
Processing Highlights
The following processes are utilized; Crushing,
Grinding, Gravity, Flotation, Carbon in Leach,
Thickening, cyanide destruction, Filtration and Paste
Backfill
Cyanide code compliant
Bulyanhulu produces two saleable products: doré
and copper concentrate
Doré bars are produced from gravity and CIL plants
Copper concentrate is produced from the flotation
plant and sold to copper smelters mainly in China
and Japan
The concentrate requires processing in a copper
smelter with a gold refinery
2007 2008 2009 2010 H1
Gold Production (oz) 242,693 200,361 248,991 132,856
Gold Head Grade Milled (g/t) 9.84 8.99 8.75 9.30
Gold Recovery (%) 89.3% 91.8% 92.1% 92.0%
Tonnes Processed (000’s) 860.3 754.5 959.2 477
BulyanhuluProcessing Operations
Buly June 2010BGML Cost Review – July 2010
Cost Control Culture entrenched
Mabingwa 1 & 2 rolled out
Mining/Maint developed a number of Tanzanians into senior roles
Achieved Mine production targets
BAC project Completed without major incident
Developed an U/Ground Mine Training centre
CCF build-up 25% over target
Launched new Social Support Model
Very good Marsh audit
Year to Date Highlights
Buly June 2010BGML Cost Review – July 2010
Advance key projects to increase ounce profile
Low grade ore from waste stockpile
Cost reduction and availability with FLAC management
Emulsion to increased face advance
Waste backfill into Alimak and CCF stopes
3980 workshop reduce tramming to maintenance
Reduce site losses from theft & fraud
Future Opportunities
Buly June 2010BGML Cost Review – July 2010
Bulyanhulu History
Safety & Health Performance
Operation Overview
– Business Environment
– Asset Overview
– Geology, Reserve/Resource
– Mining
– Processing
– 2010 Performance Summary
Project Pipeline
Strategic Priorities
Buly June 2010BGML Cost Review – July 2010
Top Strategic Priorities
Top Initiatives Planned (2010) Top Initiatives Planned (Medium Term)
Mining Production Targets
Accelerate mine development to ensure growth and flexibility
Increase productivity in Conventional Cut and Fill (CCF)
Refrigeration plant (Bulk Air Cooler) on schedule
Underground workshop on schedule
Ensure mine infrastructure is put in place for the LOM
Entrench mine standards and procedures
Comprehensive training program for CCF
CostManagement
Underground Consumable reduction
Advance development of Tanzanian leadership and workforce
Centralize purchasing
Standardize equipment and materials
Equipment Utilization and Availability
Reliability Centered Maintenance team
Focus on Fuel, Lubricant, Air & Coolant (FLAC)
Integrated maintenance plan using OEM expertise
Scheduled equipment re-build and replacement plan
Training and Development
Continue development of skilled and professional personnel
Tracking of employees after leaving Barrick as potential future resource pool
IMTT - Technical training college initiative to provide skilled labour pool
Community Development Plan Build strong Co-Operatives from the immediate
impact area
Extend the Co-Op model to the district
Establish a clear demarcation area around the mine
Bulyanhulu 2010 – 14 Strategic Priorities
Buly June 2010BGML Cost Review – July 2010
Bulyanhulu History
Safety & Health Performance
Operation Overview
– Business Environment
– Asset Overview
– Geology, Reserve/Resource
– Mining
– Processing
– 2010 Performance Summary
Strategic Priorities
Project Pipeline Project Pipeline
Buly June 2010BGML Cost Review – July 2010
2011 – 2015 Project Plan
Top Project Priorities
Project Development Planned (2011)
Project Development Planned (2012 – 15)
Upper East Mining Plan
Dewater Zone 3 and rehabilitate 500 meters
Develop zone 5 4616 ramp to Upper East
Complete Feasibility of Upper East
Design and plan ore development in Upper East
Design and plan stoping in Upper East
Design and Plan Ventilation in upper east
East Reef 1 & 2 Advance
Exploration
Surface Drilling
Met testwork and plant design
Plan potential Open pit for mining
Plan Box Cut to asses Reefs 2 & Reef 1 from surface
Deep Central Reef 2 (Super Ramp)
Waste development to access reef 2 3980
Waste development to access Reef 2 3940
Waste development to access Reef 2 4130
Definition drilling from 3980
Vent Design
Belt to extract ore from reefs 2 to shaft belt
Mine design for Alimak and CCF Stoping
Tails Re-treatment
Drill sampling program
Metallurgical testwork to establish recovery and treatment cost
Detailed plant design
Follow-up met testwork
Project execution
Narrow Alimak Mining (sub 2mts)
Equipment construction and certify
Trial Stope
Review opportunities for CCF conversion