Other South African operations

 
 
 
 


View download options
 
Bambanani
   
Bambanani mine is near Welkom. It has two surface shafts (including Steyn 2) and a sub-shaft, with ore conveyed 7 kilometres to Harmony 1 plant for processing. This deep-level operation conducts mostly scattered mining on the Basal Reef with roughly a quarter of mining activities focused on remnant pillar extraction. Development is under way in preparation for the extraction of the shaft pillar, due to begin in 2013.
 

 

Safety

Bambanani regrettably had three fatalities in FY11 (FY10: one) and reported an LTIFR of 10.74 per million hours worked (FY10: 9.29). This is an unsatisfactory performance, and more work is being done to improve safety behaviour.

More detailed information on safety performance and Harmony’s sustainable development concerns in South Africa can be found in the online sustainable development reports, with a summary on pages 6 to 15.

Bambanani employed 3 820 people in FY11 (including 402 contractors).

Detailed information on Bambanani’s resources and reserves appears in the mineral resources and mineral reserves section of this annual report.

Operations review

In FY11, 426 000 tonnes were milled, down 19% from FY10. Recovered grade decreased 11% to 6.95g/t. Both contributed to the lower gold produced.

Volumes were severely affected by refrigeration constraints from September 2010 to January 2011. Following the seismic event in September, which resulted in two fatalities, we conducted a safety risk review on the remnant pillars. Mining on all remnant pillars along the major fault structure was stopped. These were very high-grade pillars, which affected the overall grade of the operation.

Bambanani is preparing to mine the shaft pillar in the near future and production in the sub-shaft will therefore stop soon, as the orebody in this area of the mine is almost depleted. We anticipate that the shaft pillar will be mined for around eight years from 2013.

Shaft-pillar preparation has proceeded well, with major equipping in the incline shaft set to begin in December 2011. The incline shaft is alternative infrastructure to replace the main shaft infrastructure which will be destroyed below 60 level during shaft pillar extraction.

The only development left at Bambanani is capital waste metres for the shaft pillar project and follow-on development for cleaning purposes. Similarly, at Steyn 2, only capital waste metres for the shaft pillar project are outstanding.

Mining in the decline area will end in the next six months, after which mining will take place around the high-grade shaft pillar over the next eight to ten years. Backfill will be used to minimise ground control-related risks when mining begins in the shaft pillar in 2013.

Equipping of the Steyn 2 shaft, in build-up phase, continues to improve face length flexibility.

Financial review

Revenue and cash operating profit decreased significantly in both rand and dollar terms, despite the higher average gold price received for the year. This was due to lower ounces sold. Revenue was R921 million (US$132 million) and cash operating profit R93 million (US$14 million), down by 17% and 75% respectively. Production cost of R828 million (US$118 million) for the year was 11% higher (20% up in dollar terms).

The year-on-year cash operating cost increased mainly on a 26% increase in the cost of electricity, which now constitutes 28% of the total cost of operation. Excluding this, operating costs rose 8.9% year on year. A higher labour cost reflects annual salary increases as well as an increase in the average staff complement of 278.

Capital expenditure rose by 55% in FY11 to R321 million, including R162 million in capital costs for the Steyn operations. The majority of the remaining capital at Bambanani East was for the shaft-pillar work other south african operations

Bambanani key statistics
Production     FY11   FY10   FY09  
Volumes milled   000t (metric)  426   528   517  
  000t (imperial)  470   582   570  
Gold produced††   kg   3 051   4 137   3 780  
  oz   98 092   133 007   121 530  
Average grade   g/t   6.95   7.77   7.32  
  oz/t   0.203   0.227   0.213  
Financial          
Revenue   R million   921   1 114   924  
  US$ million   132   147   103  
Operating cost*   R/kg   280 075   176 253   176 834  
  US$/oz   1 247   723   611  
Operating profit   R million   93   369   273  
  US$ million   14   49   31  
Capital expenditure   R million   321   207   52  
  US$ million   46   28   6  
People          
Number of employees          
Employees     3 418   3 611    
Contractors     402   276    
Total     3 820   3 887    
HDSAs in management   %   39   44    
Women in mining   %   9   9    
Training and development expenditure   R million   18   13    
Safety          
Fatalities      3   1    
LTIFR   per million hours worked   10.74   9.29    
Environment          
Electricity used   000MWh   471   467    
Water used for primary activities   000m3   2 655   3 505    
GHG emissions   000t CO2e   652   559    
Expenditure on local economic development   R million   6   4    
Status of mining right New-order mining right granted in December 2007  
*
Includes royalty payment in FY10 and FY11.
†† FY11: 90kg (2 894oz) and FY10: 33kg (1 061oz) were capitalised.
 
    back to top