Sibanye Gold Ltd.

Sibanye Mineral Resources and Mineral Reserves update for the Gold and Platinum Divisions

Report updated Group Mineral Resources and Mineral Reserves, declared as at 31 December 2016

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Sibanye Gold Limited (JSE: SGL & NYSE: SBGL - http://www.commodity-tv.net/c/mid,5428,Company_Updates/?v=297063) is pleased to report updated Group Mineral Resources and Mineral Reserves, declared as at 31 December 2016, which following the acquisitions of Aquarius Platinum Limited and the Rustenburg Operations in 2016 includes maiden Platinum Group Metals (4E PGM) Mineral Reserves and Resources.
Salient points:

  • Total Gold Mineral Reserves of 28.7Moz declared represent a reduction of 2.3Moz, which after accounting for depletion of 1.6Moz due to mining activities in 2016, equates to a 2% decrease year on year
  • The cessation of underground mining at Cooke 4, resulted in the exclusion of 2.1Moz Gold Mineral Resources and 0.5Moz Gold Mineral Reserves
  • Uranium Mineral Reserves decreased negligibly to 113.2Mlb, with the exclusion of 2.9Mlb from the Cooke Operations offset by additional Mineral Reserves from the Beisa Project being declared
  • Total Gold Mineral Resources increased by 3% to 102.0Moz
  • Maiden 4E PGM Mineral Resources of 126.5Moz and Reserves of 23. 2Moz declared, position Sibanye in the top 5 PGM companies globally, based on these measures.
  • The 12.5Moz decrease in 4E PGM Mineral Reserves year-on year, is primarily due to:
  • Mining Depletion (1.7Moz)
  • the sale of the Everest mine during the reporting period (1.1Moz)
  • duplication of reported reserves of 2.4Moz declared by Anglo American Platinum at the Rustenburg operations in relation to the Kroondal PSA area and
  • the application of more conservative commodity price assumptions used by Sibanye relative to those previously used by Anglo American Platinum and Aquarius Platinum ((resulting in a reduction of 6.2Moz at Rustenburg and 0.9Moz at Kroondal’s Marikana operation). In line with Sibanye reporting standards, assumed commodity prices assumptions for estimating Mineral Resource and Reserves are based on three year average, trailing and spot commodity prices

Summarise Group Mineral Resources and Reserve Estimate at 31 December 2016

  • Gold

Mineral Resources1

Gold

Mineral Reserves1

31 Dec 2016

31 Dec 2015

31 Dec 2016

31 Dec 2015

Tonnes

Grade

Gold

Gold

Tonnes

Grade

Gold

Gold

(Mt)

(g/t)

(Moz)

(Moz)

(Mt)

(g/t)

(Moz)

(Moz)

Grand Total                                         Underground and Surface

1104.5

2.9

102.035

98.790

Grand Total                                       Underground and Surface

838.2

1.1

28.694

30.988

Uranium

Mineral Resources1

Uranium

Mineral Reserves1

 

 

31 Dec 2016

31 Dec 2015

31 Dec 2016

31 Dec 2015

Tonnes

Grade

U3O8

U3O8

Tonnes

Grade

U3O8

U3O8

(Mt)

(kg/t)

(Mlb)

(Mlb)

(Mt)

(kg/t)

(Mlb)

(Mlb)

Grand Total                                         (Underground and Surface)

703.5

0.103

159.507

229.852

Grand Total                                       (Underground and Surface

687.5

0.075

113.226

113.814

PGMs (4E)

Mineral Resources

PGM (4)E

Mineral Reserves

31-Dec-2016

31-Dec-2015

31-Dec-2016  

31-Dec-2015

Tonnes (Mt)

Grade (g/t)

4E (Moz)

4E (Moz)

Tonnes (Mt)

Grade (g/t)

4E (Moz)

4E
 (Moz)

Grand Total                                         Underground and Surface

1064.8

3.7

126.478

141.487

Grand Total                                       Underground and Surface

261.6

2.7

23.186

35.703

Mineral Reserves are reported in accordance with the SAMREC Code, with three year average, trailing, commodity prices applied in accordance with SEC requirements. The PGM Reserves reported at December 2016,(including Rustenburg and Aquarius but excluding Mimosa), have been evaluated on this price deck. An average exchange rate of R12.70/US$ and the following commodity prices were used:

Group Consolidated Mineral Resource and Mineral Reserve Statement

Gold Division: Gold Resource and Reserve Estimate as at 31 December 2016

Gold

Mineral Resources1

Gold

Mineral Reserves1

31 Dec 2016

31 Dec 2015

31 Dec 2016

31 Dec 2015

Tonnes

Grade

Gold

Gold

Tonnes

Grade

Gold

Gold

(Mt)

(g/t)

(Moz)

(Moz)

(Mt)

(g/t)

(Moz)

(Moz)

Operations

 

 

 

 

Operations

 

 

 

 

Beatrix2

 

 

 

 

Beatrix2

 

 

 

 

Measured

34.3

5.3

5.786

4.857

Proved AI

15.8

4.0

2.048

2.389

Indicated AI

35.0

5.5

6.150

3.677

Probable AI

20.2

2.6

1.675

1.875

Inferred AI

0.0

3.3

0.004

0.004

 

 

 

 

 

Total AI

69.4

5.4

11.940

8.538

Total AI

36.0

3.2

3.723

4.264

Indicated BI3

6.7

3.7

0.789

0.991

Probable BI3

 

 

 

 

Beatrix - Total Underground

76.1

5.2

12.729

9.530

Beatrix - Total Underground

36.0

3.2

3.723

4.264

Cooke

 

 

 

 

Cooke

 

 

 

 

Measured

11.6

8.3

3.113

1.566

Proved AI

4.3

5.3

0.728

1.014

Indicated AI

15.8

8.1

4.091

7.969

Probable AI

0.6

4.8

0.097

0.457

Inferred AI

6.0

13.6

2.635

2.326

 

 

 

 

 

Total AI

33.5

9.1

9.839

11.862

Total AI

4.9

5.2

0.826

1.471

Inferred BI4

40.7

3.1

3.998

3.998

 

 

 

 

 

Cooke - Total Underground

74.2

5.8

13.837

15.860

Cooke - Total Underground

4.9

5.2

0.826

1.471

Driefontein

 

 

 

 

Driefontein

 

 

 

 

MeasuredAI

20.7

11.6

7.741

6.503

Proved AI

20.7

6.6

4.420

4.133

Indicated AI

5.2

7.2

1.207

3.053

Probable AI

5.8

4.0

0.737

1.846

Inferred AI

0.4

13.8

0.181

0.314

 

 

 

 

 

Total AI

26.3

10.8

9.129

9.870

Total AI

26.5

6.1

5.157

5.980

MeasuredBI5

8.5

8.0

2.180

 

 

 

 

 

 

Indicated BI5

22.0

9.0

6.376

9.821

Probable BI5

8.8

6.0

1.694

2.122

Total BI

30.4

8.7

8.556

9.821

Total BI

8.8

6.0

1.694

2.122

Driefontein-Total Underground

56.7

9.7

17.684

19.691

Driefontein-Total Underground

35.3

6.0

6.851

8.102

Kloof

 

 

 

 

Kloof

 

 

 

 

Measured

14.4

17.1

7.928

6.196

Proved AI

18.4

7.9

4.700

4.857

Indicated AI

3.2

11.8

1.231

0.468

Probable AI

6.2

5.9

1.184

1.024

Total AI

17.6

16.1

9.159

6.664

Total AI

24.6

7.4

5.884

5.881

Indicated BI

44.9

13.4

19.371

11.246

Probable BI

2.5

7.2

0.566

0.502

Inferred BI

7.4

16.2

3.831

10.112

 

 

 

 

 

Total BI

52.2

13.8

23.202

21.359

Total BI

2.5

7.2

0.566

0.502

Kloof - Total Underground

69.9

14.4

32.361

28.023

Kloof - Total Underground

27.1

7.4

6.450

6.383

Operations - Total Underground

276.8

8.6

76.611

73.103

Operations - Total Underground

103.2

5.4

17.849

20.219

 

Surface rock dumps (SRD) and tailings storage facilities (TSF)

 

 

 

 

Surface rock dumps (SRD) and tailings storage facilities (TSFs)

 

 

 

 

Beatrix (Indicated)

4.5

0.4

0.052

0.062

Beatrix (Probable)

4.5

0.4

0.052

0.062

Randfontein Surface (Measured)

4.5

0.3

0.047

0.052

Randfontein Surface (Proved)

4.5

0.3

0.047

0.052

Driefontein (Indicated)

4.0

0.6

0.076

0.094

Driefontein (Probable)

4.0

0.6

0.076

0.094

Kloof (Indicated)

11.9

0.5

0.200

0.163

Kloof (Probable)

11.9

0.5

0.200

0.163

Operations - Total Surface

24.8

0.5

0.375

0.372

Operations - Total Surface

24.8

0.5

0.375

0.372

 

 

 

 

 

 

 

 

 

 

Total operations (Incl. SRD and TSF – excl. projects)

 

 

 

 

Total operations (Incl. SRD and TSF – excl. projects)

 

 

 

 

Beatrix

80.6

4.9

12.781

9.592

Beatrix

40.5

2.9

3.775

4.326

Cooke

78.6

5.5

13.883

15.911

Cooke

9.4

2.9

0.872

1.523

Driefontein

60.7

9.1

17.760

19.786

Driefontein

39.2

5.5

6.926

8.196

Kloof

81.8

12.4

32.561

28.186

Kloof

39.0

5.3

6.650

6.546

Operations Total

301.7

7.9

76.985

73.475

Operations Total

128.1

4.4

18.224

20.591

Projects

 

 

 

 

Projects

 

 

 

 

Beisa North

 

 

 

 

Beisa North

 

 

 

 

Inferred

14.8

3.4

1.619

1.619

 

 

 

 

 

Beisa North Total

14.8

3.4

1.619

1.619

Beisa North Total

 

 

 

 

Bloemhoek

 

 

 

 

Bloemhoek

 

 

 

 

Indicated

27.4

4.7

4.163

4.163

Probable

 

 

 

 

Inferred

0.9

4.9

0.135

0.135

 

 

 

 

 

Bloemhoek Total

28.3

4.7

4.297

4.297

Bloemhoek Total

 

 

 

 

Burnstone

 

 

 

 

Burnstone

 

 

 

 

Indicated

25.4

5.3

4.350

4.350

Probable

17.5

3.8

2.137

1.799

Inferred

28.7

4.9

4.540

4.540

 

 

 

 

 

Burnstone Total

54.1

5.1

8.890

8.890

Burnstone Total

17.5

3.8

2.137

1.799

De Bron Merriespruit

 

 

 

 

De Bron Merriespruit

 

 

 

 

Indicated

23.0

4.5

3.307

3.307

Probable

15.4

4.3

2.112

2.112

Inferred

5.3

4.2

0.715

0.715

 

 

 

 

 

De Bron Merriespruit Total

28.3

4.4

4.022

4.022

De Bron Merriespruit Total

15.4

4.3

2.112

2.112

Projects - Total Underground

125.5

4.7

18.828

18.828

Projects - Total Underground

32.9

4.0

4.248

3.911

WRTRP

 

 

 

 

WRTRP

 

 

 

 

Measured

625.0

0.3

5.697

5.962

Proved

 

 

 

 

Indicated

52.3

0.3

0.524

0.524

Probable

677.3

0.3

6.222

6.486

Projects - Total Surface

677.3

0.3

6.222

6.486

Projects - Total Surface

677.3

0.3

6.222

6.486

Projects Total

802.8

1.0

25.050

25.314

Projects Total

710.2

0.5

10.470

10.397

Grand Total                                         Underground and Surface

1104.5

2.9

102.035

98.790

Grand Total                                       Underground and Surface

838.2

1.1

28.694

30.988

 

Mineral Resources are inclusive of Mineral Reserves
All tonnes (t) are expressed as metric units
Cut-off grades have been calculated in accordance with SEC Guidelines for mineral pricing and approximate the historic three-year average commodity prices
Mineral Resources were declared at a premium of 10% over the Mineral Reserve metal price
Gold Mineral Resources were determined at R540,000/kg and the Gold Mineral Reserves at R490,000/kg
1 Managed, unless otherwise stated
2 Beatrix Indicated Mineral Resources AI and Probable Mineral Reserves includes Beisa Central
3 Beatrix Indicated Mineral Resources BI refers to material below 26 Level (1,341mbs)
4 Cooke Inferred Mineral Resources BI refers to material within Cooke 4 Shaft Prospecting Right (Zuurbekom)
5 Driefontein Indicated and Inferred Mineral Resources and Probable Mineral Reserves BI refers to material below 50 Level (3,300mbs)
6 Kloof Indicated and Inferred Mineral Resources and Probable Mineral Reserves BI refers to material below 45 Level (3,347mbs)

* SOFS Projects

Gold Division: Uranium Resource and Reserve Estimate as at 31 December 2016

Uranium

Mineral Resources1

Uranium

Mineral Reserves1

31 Dec 2016

31 Dec 2015

31 Dec 2016

31 Dec 2015

Tonnes

Grade

U3O8

U3O8

Tonnes

Grade

U3O8

U3O8

(Mt)

(kg/t)

(Mlb)

(Mlb)

(Mt)

(kg/t)

(Mlb)

(Mlb)

Operations

 

 

 

 

Operations

 

 

 

 

Beatrix2

 

 

 

 

Beatrix

 

 

 

 

Measured AI

3.6

1.086

8.548

8.548

Proved AI

 

 

 

 

Indicated AI

7.8

1.069

18.330

18.330

Probable AI

10.2

0.711

16.060

11.654

Inferred AI

0.0

1.101

0.090

0.090

 

 

 

 

 

Beatrix - Total Underground

11.4

1.074

26.968

26.968

Beatrix - Total Underground

10.2

0.711

16.060

11.654

Cooke

 

 

 

 

Cooke

 

 

 

 

Measured AI

 

 

 

4.873

Proved AI

 

 

 

2.056

Indicated AI

 

 

 

11.546

Probable AI

 

 

 

1.017

Inferred AI3

 

 

 

8.020

 

 

 

 

 

Total AI

 

 

 

24.439

Total AI

 

 

 

3.073

Inferred BI

 

 

 

43.984

 

 

 

 

 

Cooke - Total Underground

 

 

 

68.423

Cooke - Total Underground

 

 

 

3.073

Operations - Total Underground

11.4

1.074

26.968

95.391

Operations - Total Underground

10.2

0.711

16.060

14.727

Projects

 

 

 

 

Projects

 

 

 

 

Beisa North

 

 

 

 

Beisa North

 

 

 

 

Inferred

14.8

1.084

35.373

35.373

 

 

 

 

 

Beisa North Total

14.8

1.084

35.373

35.373

Beisa North Total

 

 

 

 

Projects - Total Underground

14.8

1.084

35.373

35.373

Projects - Total Underground

 

 

 

 

WRTRP

 

 

 

 

WRTRP

 

 

 

 

Measured

625.0

0.063

87.230

89.151

Proved

 

 

 

 

Indicated

52.3

0.086

9.936

9.936

Probable

677.3

0.065

97.166

99.088

Projects - Total Surface

677.3

0.065

97.166

99.088

Projects - Total Surface

677.3

0.065

97.166

99.088

Projects Total

692.1

0.087

132.539

134.461

Projects Total

677.3

0.065

97.166

99.088

Grand Total                                         (Underground and Surface)

703.5

0.103

159.507

229.852

Grand Total                                       (Underground and Surface

687.5

0.075

113.226

113.814

*Mineral Resources are inclusive of Mineral Reserves
1 Managed, unless otherwise stated
2 Beatrix includes uranium Mineral Resources and Mineral Reserves from the Beisa Central Project
3 Cooke Inferred Mineral Resources BI refers to material within the Cooke 4 Shaft Prospecting Right (Zuurbekom)

Key aspects that impacted on the 31 December 2016 Statement of Gold and Uranium Mineral Reserves include:

  • Following the cessation of underground mining at Cooke 4, 0.5Moz was excluded from Gold Mineral Reserves
  • A focused exploration program on “secondary reefs” resulted in additional Mineral Reserves of 0.6Moz at Kloof (Middelvlei Reef and Kloof Reef at Main shaft), Driefontein (Middelvlei Reef at 8 Shaft), and the Kimberley Reef at the Cooke Operations. 
  • The continuing review and investigation of previously unmined areas with economic potential (‘white areas’) resulted in a 0.9Moz increase in Gold Reserves during 2016.  This was derived primarily at Beatrix West, Driefontein 8 Shaft and Kloof Main Shaft.
  • Ongoing exploration at the western extension at Driefontein 5 Shaft, delineated a lower grade, overbank geological facies. This information underpinned an updated geological model, and this geological anomaly has resulted in a decrease in Mineral Reserves of 0.6Moz. Drilling on the opposite site of the overbank provides assurance that the extent of the overbank facies is constrained.
  • Minor decreases in grade as a result of additional geological information at Beatrix South and the exclusion of certain high grade pillars at Kloof Main Shaft resulted in reserve decreases of 0.4Moz and 0.3Moz at those operations respectively.
  • Uranium Mineral Reserves decreased negligibly to 113.2Mlb, with the exclusion of 2.9Mlb from the Cooke Operations alleviated by additional Reserves from the Beisa Project.

Group Consolidated Mineral Resource and Mineral Reserve Statement

Platinum Division: 4E PGM Resource and Reserve Estimate as at 31 December 2016

Category - 4E PGM

Mineral Resources

Category - 4E PGM

Mineral Reserves

31-Dec-2016

31-Dec-2015

31-Dec-2016

31-Dec-2015

Tonnes

Grade

4E PGM

4E PGM

Tonnes

Grade

4E PGM

4E PGM

(Mt)

(g/t)

(Moz)

(Moz)

(Mt)

(g/t)

(Moz)

(Moz)

South African Operations

 

 

 

 

South African Operations

 

 

 

 

Kroondal (50% attributable)¹

 

 

 

 

Kroondal (50% attributable)¹

 

 

 

 

Measured

44.5

3.5

5.039

8.190

Proved 4

21.0

2.7

1.802

4.030

Indicated

14.2

3.7

1.688

2.319

Probable

5.8

2.6

0.489

0.951

Inferred

6.0

3.2

0.629

0.903

 

 

 

 

 

Kroondal - Total Underground

64.8

3.5

7.356

11.412

Kroondal - Total Underground

26.8

2.7

2.291

4.981

Rustenburg (100% attributable)

 

 

 

 

Rustenburg (100% attributable)

 

 

 

 

Measured

375.9

4.9

59.745

63.017

Proved

123.1

3.8

15.165

21.278

Indicated

125.6

5.3

21.525

22.257

Probable

6.7

4.2

0.901

4.204

Inferred

15.2

5.6

2.717

2.760

 

 

 

 

 

Rustenburg - Total Underground

516.6

5.1

83.987

88.034

Rustenburg - Total Underground

129.8

3.8

16.066

25.482

South African Operations - Total Underground

581.4

4.9

91.343

99.447

South African Operations - Total Underground

156.6

3.6

18.357

30.463

Tailings Storage Facilities (TSF)

 

 

 

 

Tailings Storage Facilities (TSF)

 

 

 

 

Rustenburg (Measured)

90.4

1.1

3.140

3.280

Rustenburg (Proved)

 

 

 

 

Rustenburg (Indicated)

 

 

 

 

Rustenburg (Probable)

90.4

1.1

3.140

3.280

South African Operations - Total Surface

90.4

1.1

3.140

3.280

South African Operations - Total Surface

90.4

1.1

3.140

3.280

Total operations (Incl. TSF – Excl. Projects)

 

 

 

 

Total operations (Incl. TSF – Excl. Projects)

 

 

 

 

Kroondal

64.8

3.5

7.356

11.412

Kroondal

26.8

2.7

2.291

4.981

Rustenburg

607.0

4.5

87.127

91.314

Rustenburg

220.2

2.7

19.206

28.762

South African Operations Total

671.7

4.4

94.483

102.727

South African Operations Total

246.9

2.7

21.497

33.743

Non South African Operations

 

 

 

 

Non South African Operations

 

 

 

 

Mimosa (50% Attributable)3

 

 

 

 

Mimosa (50% Attributable)3

 

 

 

 

Measured

31.9

3.7

3.776

4.120

Proved

9.2

3.5

1.053

1.310

Indicated

15.4

3.6

1.776

1.790

Probable

5.4

3.7

0.636

0.650

Inferred

4.4

3.6

0.512

0.520

 

 

 

 

 

Inferred (Oxides)

9.0

3.4

0.981

0.980

 

 

 

 

 

Mimosa - Total Underground

60.7

3.6

7.045

7.410

Mimosa - Total Underground

14.6

3.6

1.689

1.960

Non South African Operations - Total Underground

60.7

3.6

7.045

7.410

Non South African Operations - Total Underground

14.6

3.6

1.689

1.960

Projects

 

 

 

 

Projects

 

 

 

 

Millenium

 

 

 

 

 

 

 

 

 

Indicated

 

 

 

1.430

 

 

 

 

 

Inferred

17.5

3.1

1.720

0.290

 

 

 

 

 

Millenium Total

17.5

3.1

1.720

1.720

 

 

 

 

 

Vygenhoek

 

 

 

 

 

 

 

 

 

Measured

1.4

5.1

0.230

0.230

 

 

 

 

 

Vygenhoek Total

1.4

5.1

0.230

0.230

 

 

 

 

 

Sheba's Ridge (3E PGM)

 

 

 

 

 

 

 

 

 

Measured

31.2

0.9

0.880

0.880

 

 

 

 

 

Indicated

37.9

0.9

1.040

1.040

 

 

 

 

 

Inferred

167.0

1.0

5.180

5.180

 

 

 

 

 

Sheba's Ridge Total

236.1

0.9

7.100

7.100

 

 

 

 

 

Zondernaam

 

 

 

 

 

 

 

 

 

Inferred

77.4

6.4

15.900

15.900

 

 

 

 

 

Zondernaam Total

77.4

6.4

15.900

15.900

 

 

 

 

 

Hoedspruit

 

 

 

 

 

 

 

 

 

Indicated

 

 

 

2.450

 

 

 

 

 

Inferred

 

 

 

0.530

 

 

 

 

 

Hoedspruit Total

 

 

 

2.980

 

 

 

 

 

Hoogland

 

 

 

 

 

 

 

 

 

Indicated

 

 

 

2.810

 

 

 

 

 

Inferred

 

 

 

0.610

 

 

 

 

 

Hoogland Total

 

 

 

3.420

 

 

 

 

 

Projects - Total Underground

332.4

2.3

24.950

31.350

Projects - Total Underground

 

 

 

 

Grand Total                                         Underground & Surface

1064.8

3.7

126.478

141.487

Grand Total                                       Underground & Surface

261.6

2.7

23.186

35.703

Mineral Resources are inclusive of Mineral Reserves
All tonnes (t) are expressed as metric units
Mineral Resources were declared at a premium of 10% over the Mineral Reserve metal price

  1. Kroondal year on year change includes the sale of Everest Mine during the reporting period and the removal of sub-economic Reserves from the Marikana section.  Kroondal is mined under a Pool and Share agreement (PSA) with Anglo American Platinum (AAP) and mineral resources and reserves are reported as 50% attributable.
  2. .Mimosa’s change YoY is associated with depletions. Mimosa (Zimbabwe) is a non RSA operation managed as a standalone company in Zimbabwe, 50% attributable to Sibanye. The Reserves reported are June 2016 declared by Mimosa less depletions to December 2016
  3. Kroondal is mined under a Pool and Share agreement (PSA) with AAP. Kroondal retains exclusive mining rights for the Kroondal Extension and 1.130Moz 4E PGM (50% attributable) is included in the Sibanye statement ending 31 December 2016.

Key aspects that impacted on the 31 December 2016 Statement of the 4E PGM Mineral Resources and Reserves include:

  • At the Kroondal operations total 4E PGM Mineral Reserves decreased by 2.7Moz.  This reduction can be primarily attributed to:
    • 0.4Moz due to mining depletion between June 2015 and December 2016.  To align with Sibanye reporting processes, this reserve declaration considers 18 months of mining depletion.
    • A 0.9Moz reduction in Mineral Reserves at Marikana. The Marikana operation was placed on care and maintenance by Aquarius Platinum during 2015 and did not contribute to the 2015 Life of mine plans.  These Reserves have been reassessed and are not considered to be economically viable under Sibanye’s economic assumptions.
    • 1.1Moz associated with the sale of Everest South during the reporting period.
    • The balance of the decrease was made up of technical and modifying factors that accounted for approximately 0.3Moz

At the Rustenburg Operations total 4E PGM Mineral Reserves decreased by 9.4Moz year-on-year.  This reduction can be attributed to:

  • 1.0Moz depletion due to mining activities during 2016.
  • Anglo American Platinum declared the ounces contained in Mineral Reserves at the Kroondal PSA ‘Extension’ area, amounting to 2.4Moz’s, as 100% attributable to the Rustenburg operations in 2015.  Aquarius Platinum declared 50% attributable reserves over the same area in 2015.  Sibanye has reported these reserves as 50% attributable to the Kroondal operations from where these reserves will be extracted, thus reducing the Rustenburg declared reserves by 2.4Moz’s.
  • The application of Sibanye’s more conservative economic assumptions at Rustenburg resulted in several areas at Siphumulele, Thembelani and Khusuleka shafts, containing approximately 6.2Moz, being considered either uneconomic, or unable to generate sufficient returns from the capital expenditure required to access these reserves, to meet internal project hurdle rates.
  • A sensitivity analysis has indicated that at sustained metal price increases of between 5% and 10%, the majority of these resources could be converted back to mineral reserves.
  • The 4E PGM Mineral Reserves at Mimosa, a non-managed independent company in which Sibanye holds a 50% stake, are reported as at June 2016, less depletions to December 2016.  A revision in the LoM Plan i will be updated by June 2017.
  • Mineral Resources at the Hoogland and Hoedspruit projects (6.4Moz’s) have not been declared in 2016 as these projects have been discontinued by Sibanye.

 

Abridged review per operation

BEATRIX
Beatrix is a low-cost, high productivity asset with a life of mine (LoM) extending to 2035. The Mineral Resources include 12.8Moz gold and 27.0Mlb uranium. Gold Mineral Reserves decreased by 5% net of production depletion of 0.3Moz to 3.8Moz in 2016, primarily as a result of lower grades affecting the tail end of the production profile  at Beatrix South and Beatrix West sections. 
The underground Reserve grade decreased from 3.5g/t in 2015 to 3.2g/t in 2016, primarily due to the inclusion of additional ground from the lower gold grade Beisa project at Beatrix West (a uranium rich project which is currently in Feasibility Study stage).  The additional Uranium Reserves from Beisa resulted in an increase of 4.4Mlb  
The underground production is supplemented by processing historic rock dumps, with an estimated gold Mineral Reserve of 0.052Moz at a grade of 0.4g/t. 
DRIEFONTEIN
Driefontein is a high-yield, long-term operation with gold Mineral Resources of 17.8Moz, gold Mineral Reserves of 6.9Moz and a LoM that extends to 2036.  The Mineral Reserves are based on current operations, as well as the 5 Shaft Depth Extension project which commenced in 2016.
Gold Mineral Reserves decreased by 15% net of production depletion of 0.6Moz year on year.  This reduction was primarily due to the intersection of a large geological anomaly (“overbank area”) at 5 Shaft and the 5 Shaft Depth Extension Project, resulting in a reduction of 0.574Moz and reducing the life of mine by 7 years.  As a result of this geological anomaly, the Reserve Grade at 5 Shaft is expected to decrease by 0.5g/t to 6.5g/t, and by 1.3g/t to 6.0g/t at the 5 Shaft Depth Extension project.  Despite the decrease in grade, the Depth Extension project is still above the economic hurdle rate of the Group and will continue as planned.  Further exploration is being conducted in the area, but drilling on the opposite site of the overbank provides assurance that the extent of the overbank is constrained and that the extent of this lower grade zone is well delineated and should not have any further impact on the Reserves.
Underground production is supplemented by processing of an estimated 0.1Moz of gold Mineral Reserves contained in historic rock dumps. Further exploration of historic rock dumps extended the life of the surface operation by another year. 

KLOOF
Kloof is a high-yield long-term operation with a LoM extending to 2034 and gold Mineral Resources of 32.6Moz and gold Mineral Reserves of 6.7Moz. Gold Mineral Reserves increased by 2% net of production depletion year on year, with the underground Reserve grade largely unchanged from 7.5g/t to 7.4g/t.  The Mineral Reserves is based on the current operations, as well as the 4 Shaft Depth Extension project which commenced in 2015. The increase in Mineral Reserves is largely due to additional Secondary Reefs (Middelvlei Reef and Kloof Reef) of 0.2Moz, as well as white areas (0.3Moz). 
Underground production is supplemented by processing historic rock dumps with an estimated gold Mineral Reserve of 0.2Moz, an increase of 22% from last year.

COOKE
Cooke is a short- to medium-term asset, with gold Mineral Resources of approximately 13.9Moz and gold Mineral Reserves of 0.9Moz. With the cessation of underground mining at the Cooke 4 mine, and closure of the uranium processing circuit at the Ezulwini plant, the gold and uranium Mineral Reserve decreased by 0.5Moz and 2.9Mlbs respectively. With the exclusion of Cooke 4, as well as the inclusion of the expected impact of the Grout Project (which will enable mining of high grade crush pillars at Cooke 1 and 3), the average reserve grade at the Cooke Operations increased from 4.7g/t to 5.2g/t. Underground production is supplemented by processing of historic tailings facilities at Cooke Plant which will be completed by end 2017. 

KROONDAL
Kroondal is a low cost asset, with the current LoM estimated to extend to 2032. The operation is mined under a pool and share agreement with Anglo Platinum in which the PSA, of which Sibanye has a 50% stake, has exclusive mining rights to the area. Sibanye, through its Kroondal operations, has the infrastructure and processing facilities to mine and process the ore from this PSA area. The operation has 4E PGM Mineral Resources of approximately 7.356Moz (attributable) and 4E PGM Mineral Reserves of 2.291Moz (attributable).   Marikana is a lease area situated east of the Kroondal area and forms a natural extension to the existing mine plan for Kroondal. Marikana is however structurally complex with the propensity for higher geological losses and as such, affects the extraction rates of this orebody. The mine plan is sub economic considering the 4E PGM price deck applied to the 2016 valuation and as such, is removed from reserves. AQPSA, the former owners of Marikana, had already placed this operation on care and maintenance in 2015 owing to the high costs of extracting the ore from this section.

RUSTENBURG OPERATIONS
The Rustenburg Operations are long term assets, with the current estimated LoM extending to 2046. The operations contain 4E PGM Mineral Resources of approximately 87.127Moz and 4E PGM Mineral Reserves of 19.206Moz. The decline in the 4E PGM Mineral Reserves year-on-year, was primarily due to the use of commodity price assumptions in line with Sibanye reporting standards and SEC guidelines.  These prices are more conservative and as such resulted in several areas at Siphumulele and Thembelani conventional shafts being considered uneconomical. 

MIMOSA
Mimosa is a long-term asset, with the current LoM estimated to extend to 2033. The operation has 4E PGM Mineral Resources of approximately 7.0Moz (attributable to Sibanye) and 4E PGM Mineral Reserves 1.7Moz (attributable to Sibanye). The 4E PGM Mineral Reserves have decreased by 0.3Moz year on year, mainly due to depletion.

Abridged review per project

BURNSTONE
The development of the Burnstone Project commenced in 2015, with the first gold production expected by 2018.  With Mineral Reserves of 2.1Moz, the project envisages steady state production of approximately 115,000oz per annum from 2021, with a LoM extending up to 2042.

WEST RAND TAILINGS RETREATMENT PROJECT
The West Rand Tailings Retreatment Project (WRTRP) will process the historical tailings storage facilities of the Driefontein, Kloof and Cooke operations for gold and uranium. The project has an estimated gold and uranium Mineral Reserve of 6.2Moz and 97.2Mlb respectively.
The project, which will utilize current metallurgical capacity as well as a Central Processing Plant and Central Tailings Storage Facility, will have an annual steady state production of ~0.1Moz gold and ~0.9Mlbs uranium.  The project life will extend to beyond 2068, and will have the additional benefit of reducing the environmental liability posed by historical tailings.

DE BRON MERRIESPRUIT
Gold Mineral Reserves of 2.1Moz for the De Bron Merriespruit Project are based on the original feasibility study previously conducted by Royal HaskoningDHV in 2013.  However, the production design and schedule was modified during 2015 in line with enhanced geological and estimation models, with the extraction plan optimized in line with new cut-off grades.

Corporate governance
Sibanye reports its Mineral Resources and Mineral Reserves in accordance with the SAMREC Code, the updated Section 12 of the JSE Listings Requirements and the SEC Industry Guide 7, which is aligned with the guiding principles of SOX. Guided by a commitment to best practice corporate governance, the statement has been reviewed by each Division’s Technical Services.  For the Gold Division, the statement for the operations was independently reviewed by Amec Foster Wheeler (Mineral Resources) and by Mineral Corporation Consultancy Proprietary Ltd (Mineral Reserves), and has been found to be compliant with the relevant codes with no material shortcomings. The Platinum Division for 2016 did not have an external audit due to the acquisition approval process occurring during the year.

The Mineral Resources and Mineral Reserves are estimates at a particular date, and are affected by fluctuations in mineral prices, the Rand-US dollar currency exchange rate, operating costs, mining permits, changes in legislation and operating factors. Although all permits may not be finalised and in place at the time of reporting, there is no reason to expect that these will not be granted. However, the length of the approval process for such permits may have an impact on the schedules stated.

All statement figures are managed by Sibanye with the exception of those for Mimosa. Mineral Resources are reported inclusive of Mineral Reserves, and production volumes are reported in metric tonnes (t).
Gold and uranium estimates are reported separately from each other, therefore no gold equivalents are stated to avoid potential anomalies as a result of year-on-year metal price differentials. The Platinum Division statement consists of platinum reported as 4E PGM, which consists of platinum, palladium, rhodium and gold.  Individual proportions of the 4E PGM are determined via prill split proportions as determined from the assays.
All financial models used to determine Mineral Reserves are based on current tax regulations at 31 December 2016.
For the Gold Division, the lead competent person designated in terms of the SAMREC Code, with responsibility for the consolidation and reporting of Sibanye’s Mineral Resources and Mineral Reserves, and for overall regulatory compliance of these figures, is Gerhard Janse van Vuuren, who gave his consent for the disclosure of the 2016 Mineral Resources and Mineral Reserves Statement. Gerhard [GDE (Mining Eng), MBA, MSCC and B.Tech (MRM)] is registered with SAIMM (706705) and has 29 years’ experience relative to the type and style of mineral deposit under consideration.
For the Platinum Division, the lead competent person designated in terms of the SAMREC Code, who takes responsibility for the consolidation and reporting of the Division’s Mineral Resources and Mineral Reserves, and for the overall regulatory compliance of these figures, is Andrew Brown, who gave his consent for the disclosure of the 2016 Mineral Resources and Mineral Reserves Statement. Andrew [M.Sc Mining Eng] is registered with SAIMM (705060) and has 32 years’ experience relative to the type and style of mineral deposit under consideration.

The respective business unit-based Mineral Resource managers, relevant project managers and the respective Mineral Resource management discipline heads, have been designated as competent persons, in terms of the SAMREC Code. These persons take responsibility for the reporting of Mineral Resources and Mineral Reserves for their respective area(s). Additional information regarding these personnel, as well as the teams involved with the compilation of the Mineral Resource and Mineral Reserve declaration, is incorporated in the Mineral Resources and Mineral Reserves Supplement that has been published in conjunction with this Sibanye Integrated Annual Report 2016.

ENDS

Contact
James Wellsted
Head of Corporate Affairs
Sibanye Gold Limited
+27 83 453 4014
james.wellsted@sibanyegold.co.za

In Europe:
Swiss Resource Capital AG
Jochen Staiger
info@resource-capital.ch
www.resource-capital.ch

Sponsor: J.P. Morgan Equities South Africa (Pty) Ltd

FORWARD LOOKING STATEMENTS

Certain statements in this document constitute “forward-looking statements” within the meaning of Section 27A of the US Securities Act of 1933 and Section 21E of the US Securities Exchange Act of 1934.

These forward-looking statements, including, among others, those relating to Sibanye’s future business prospects, revenues and income, wherever they may occur in this document and the exhibits to this document, are necessarily estimates reflecting the best judgment of the senior management and directors of Sibanye, and involve a number of known and unknown risks and uncertainties that could cause actual results, performance or achievements of the Group to differ materially from those suggested by the forward-looking statements. As a consequence, these forward-looking statements should be considered in light of various important factors, including those set forth in this document. Important factors that could cause the actual results to differ materially from estimates or projections contained in the forward-looking statements include, without limitation, economic, business, political and social conditions in South Africa, Zimbabwe and elsewhere; changes in assumptions underlying Sibanye’s estimation of its current Mineral Reserves and Resources; the ability to achieve anticipated efficiencies and other cost savings in connection with past and future acquisitions, as well as at existing operations; the ability of Sibanye to successfully integrate acquired businesses and operations (whether in the gold mining business or otherwise) into its existing businesses; the success of Sibanye’s business strategy, exploration and development activities; the ability of Sibanye to comply with requirements that it operate in a sustainable manner; changes in the market price of gold, platinum group metals (“PGMs”) and/or uranium; the occurrence of hazards associated with underground and surface gold, PGMs and uranium mining; the occurrence of labour disruptions and industrial action; the availability, terms and deployment of capital or credit; changes in relevant government regulations, particularly environmental, tax health and safety regulations and new legislation affecting water, mining, mineral rights and business ownership, including any interpretations thereof which may be subject to dispute; the outcome and consequence of any potential or pending litigation or regulatory proceedings or other environmental, health and safety issues; power disruptions, constraints and cost increases; supply chain shortages and increases in the price of production inputs; fluctuations in exchange rates, currency devaluations, inflation and other macro-economic monetary policies; the occurrence of temporary stoppages of mines for safety incidents and unplanned maintenance; Sibanye’s ability to hire and retain senior management or sufficient technically skilled employees, as well as its ability to achieve sufficient representation of historically disadvantaged South Africans’ in its management positions; failure of Sibanye’s information technology and communications systems; the adequacy of Sibanye’s insurance coverage; any social unrest, sickness or natural or man-made disaster at informal settlements in the vicinity of some of Sibanye’s operations; and the impact of HIV, tuberculosis and other contagious diseases. These forward-looking statements speak only as of the date of this document.

The Group undertakes no obligation to update publicly or release any revisions to these forward-looking statements to reflect events or circumstances after the date of this document or to reflect the occurrence of unanticipated events.



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