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Doornkop Mine

Our operations

Doornkop

Doornkop, a single-shaft operation, is located in the province of Gauteng of South Africa, approximately 30 kilometres west of Johannesburg, on the northern rim of the Witwatersrand Basin. Mining is conducted at a depth of 1 978 metres. The operation focuses on narrow-reef conventional mining of the South Reef. The ore from the operation is processed at the Doornkop plant.

Performance FY16

The Doornkop operation was restructured towards the end of FY15 to respond to the low gold price environment and the significant capital investment required to sustain the operations at this shaft. The section 189A process was concluded at the end of July 2015. The majority of employees and contractors affected were transferred to vacant positions at other operations.

Doornkop's life-of-mine plan focuses on mining the higher-grade areas of the South Reef ore body on 192 and 197 levels. Greater emphasis was placed on improving operating efficiencies in FY16.

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

Key statistics

    FY16 FY15 FY14
Number of employees        
– Permanent   2 471 2 977 2 836
– Contractors   443 493 736
Total   2 914 3 470 3 572
Operational        
Volumes milled (000t) (metric) 630 603 737
  (000t) (imperial) 695 665 812
Gold produced (kg) 2 730 2 663 2 603
  (oz) 87 772 85 618 83 687
Gold sold (kg) 2 712 2 711 2 633
  (oz) 87 193 87 160 84 653
Grade (g/t) 4.33 4.42 3.53
  (oz/t) 0.126 0.129 0.103
Productivity (g/TEC) 83.49 68.47 63.57
Development results        
Total metres   7 766 8 919 8 322
Reef metres   1 688 1 701 1 475
Capital metres   0 0 0
Financial        
Revenue (Rm) 1 480 1 220 1 126
  (US$m) 102 107 109
Average gold price received (R/kg) 545 770 4495 857 4275 728
  (US$/oz) 1 171 1 222 1 285
Cash operating cost (Rm) 15 058 15 071 15 095
  (US$m) 73 94 106
Production profit/(loss) (Rm) 433 128 28
  (US$m) 30 12 3
Capital expenditure (Rm) 208 245 238
  (US$m) 14 21 23
Cash operating cost (R/kg) 387 585 402 065 420 617
  (US$/oz) 831 1 092 1 264
All-in sustaining cost (R/kg) 4735 562 5085 743 5235 839
  (US$/oz) 1 016 1 382 1 574
Safety        
Number of fatalities   0 1 11
Lost-time injury frequency rate per million hours worked   12.27 7.14 9.06
Environmental        
Electricity consumption (GWh) 203 205 187
Water consumption – primary activities (ML) 1 135 733 1 010
greenhouse gas emissions (000t CO2e) 206 211 186
Intensity data per tonne treated        
– energy   0.32 0.34 0.25
– water   1.80 1.26 1.37
– greenhouse gas emissions   0.32 0.35 0.25
Number of reportable environmental incidents   0 0 0
Community        
Local economic development * (Rm) 4 37 25
Training and development (Rm) 30 35 23

* Included in the total for FY16 is an amount of R1 million that was capitalised as part of the hostel upgrades (FY15: R28 million)

Other salient features  
Status of operation Mining takes place on the South Reef at this single-shaft operation.
Life of mine 17 years
Hoisting capacity (per month) 91 480 tonnes ( 100 839 tons)
Compliance and certification New order mining right – October 2008
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)
  1.7 5.03 9 2.6 5.21 13 4.3 5.14 22
Reserves (imperial)) Tonnes
(Mt)
Grade
(g/t)
Gold
(000kg)
Tonnes
(Mt)
Grade
(g/t)
Gold
(000kg)
Tonnes
(Mt)
Grade
(g/t)
Gold
(000kg)
  1.9 0.147 278 2.8 0.152 431 4.7 0.150 709

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Recent news

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Annual report

Integrated annual report 2016
Integrated annual report 2016

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Investor brief

Harmony Investor brief, November 2016
Harmony Investor brief -
November 2016

(PDF - 2MB)