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Our operations

Bambanani

Bambanani, near Welkom and about 262 kilometres from Johannesburg, has two surface shafts (the East and West shafts). Mining is conducted at a depth of 2 365 metres. Activities at the mine focus on the Basal Reef and are limited to shaft pillar extraction. The ore mined is sent to Harmony One Plant for processing. Given the high risk of seismicity at Bambanani, efforts are focused on managing support systems and the rehabilitation of areas with challenging ground conditions.

Performance FY16

Bambanani's all-in sustaining costs are less than US$700/oz (R310 000/kg), and is one of Harmony's most profitable mines.

The decline shaft was commissioned towards the end of FY16 and is expected to be completed during the September 2016 quarter. All reef is now being hoisted via West Shaft, while the hoisting of waste will continue at East Shaft for the duration of the mining of the shaft pillar.

Despite the overall increase in production and grade, production during the second half of the financial year was impacted by stoppages and delays caused by a shaft infrastructure accident. Aging infrastructure resulted in electrical cables being dislodged from their mountings causing damage to parts of the mine. A comprehensive programme and engineering strategy has been implemented to mitigate this risk going forward. Further production delays were caused by underground fires started by illegal miners in a mined out area. Fire mitigation plans, equipment and infrastructure upgrades have been implemented to protect the mining area.

More detailed information on safety performance can be found in the Integrated annual report.

Key statistics

    FY16 FY15 FY14
Number of employees        
– Permanent   1 491 1 517 1 584
– Contractors   321 330 444
Total   1 812 1 847 2 028
Operational        
Volumes milled (000t) (metric) 232 229 206
  (000t) (imperial) 256 253 227
Gold produced (kg) 3 013 2 908 2 576
  (oz) 96 870 93 495 82 821
Gold sold (kg) 3 015 2 947 2 567
  (oz) 96 934 94 748 82 530
Grade (g/t) 12.99 12.70 12.50
  (oz/t) 0.378 0.370 0.365
Development results        
Total metres   1 743 1 150.3 1 092
Reef metres   105 14.7 0
Capital metres   0 0 0
Financial        
Revenue (Rm) 1 617 1 330 1 111
  (US$m) 112 116 107
Average gold price received (R/kg) 536 410 451 200 432 706
  (US$/oz) 1 151 1 226 1 300
Cash operating cost (Rm) 808 697 574
  (US$m) 56 61 55
Production profit/(loss) (Rm) 806 625 537
  (US$m) 56 55 52
Capital expenditure (Rm) 106 110 125
  (US$m) 7 10 12
Cash operating cost (R/kg) 268 305 239 552 222 764
  (US$/oz) 576 651 669
All-in sustaining cost (R/kg) 304 634 276 855 263 867
  (US$/oz) 654 752 793
Safety        
Number of fatalities   0 1 1
Lost-time injury frequency rate per million hours worked   3.59 4.63 7.46
Environment        
Electricity consumption (GWh) 140 133 143
Water consumption – primary activities (ML) 1 434 1 731 1 665
Greenhouse gas emissions (000t CO2e) 142 137 142
Intensity data per tonne treated        
– energy   0.60 0.59 0.69
– water   6.18 7.57 8.08
– greenhouse gas emissions   0.60 0.61 0.69
Number of reportable environmental incidents   0 0 0
Community        
Local economic development (Rm) 9 3 3
Training and development* (Rm) 25 17 13

* Expenditure on training and development at Bambanani includes that at Steyn 2 for FY14

Other salient features  
Status of operation Mature operation with focus on mining of the shaft pillar for the next few years after which it will reach the end of its operating life
Life of mine 5 years
Hoisting capacity (per month) 32 256 tonnes (35 556 tons)
Compliance and certification New order mining right – December 2007
ISO 14001
ISO 9001
OHSAS 18001

Mineral reserves as at 30 June 2016

  Proved reserves Probable reserves Total mineral reserves
Reserves (metric) Tonnes
(Mt)
Grade
(g/t)
Gold
(000kg)
Tonnes
(Mt)
Grade
(g/t)
Gold
(000kg)
Tonnes
(Mt)
Grade
(g/t)
Gold
(000kg)
  1.3 11.08 14 1.3 11.08 14
Reserves (imperial) Tons
(Mt)
Grade
(oz/t)
Gold
(000oz)
Tons
(Mt)
Grade
(oz/t)
Gold
(000oz)
Tons
(Mt)
Grade
(oz/t)
Gold
(000oz)
  1.4 0.323 449 1.4 0.323 449

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Annual report

Integrated annual report 2016
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Harmony Investor brief, Sep 2017
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