Quarterly Activities Report

BHP Group Limited
18 January 2024
 




18 January 2024

Operational review for the half year ended 31 December 2023

Strong H1 in copper, iron ore and energy coal. Challenging half in metallurgical coal.

Tragically, a team member from BEP Engineering & Maintenance, a contracting partner to BMA, was fatally injured in an incident at BMA's Saraji mine earlier this week. Our deepest sympathies are with their family, friends and colleagues at this difficult time. We are committed to learning from this tragedy and investigations into the incident are underway.

Operationally, BHP has had a solid first half. WA Iron Ore production was up 5% quarter-on-quarter, while first half copper production rose 7% reflecting a record half at Spence and ongoing strong performance and additional tonnes at Copper South Australia. NSW Energy Coal had its best first half in five years, while BMA had a tough six months following significant planned maintenance and low starting inventories. At Nickel West, we are evaluating options to mitigate the impacts of the sharp fall in nickel prices.

We progressed our growth agenda during the quarter with ongoing construction of the Jansen mine in Canada and the sanction of Jansen Stage 2, which doubles our planned potash production capacity. In South Australia, we successfully integrated our Copper SA business and significant exploration drilling beneath Olympic Dam has identified attractive copper mineralisation above 1% grade along a 2 km strike, with areas above 2%.

Mike Henry

BHP Chief Executive Officer

Summary

Operational performance

Portfolio

Production guidance unchanged, except at BMA

Enhancing the quality of our portfolio

FY24 production guidance ranges remain unchanged for all assets, with the exception of BMA which has been lowered to between 23 and 25 Mt (46 - 50 Mt at 100%) excl. Blackwater and Daunia from the expected sale completion date of 2 April 2024.

Copper production increased1 7%, including a record quarter at Carrapateena, and energy coal production increased 36%, with its FY24 production now expected to be in the upper end of the guidance range.

We are investing in growth with the approval of US$4.9 bn in Jansen Stage 2. We continued our strategic focus on higher quality metallurgical coal with the planned divestment of BMA's Blackwater and Daunia mines for cash consideration of up to US$4.1 bn (100% basis). We have undertaken ~62 km of exploratory drilling beneath Olympic Dam (OD Deeps), which has shown extensive mineralisation continuity, with attractive copper grades of above 1% along more than 2 km in strike and more than 1 km in depth. Results are included in Appendix 3.

Financial performance

Leadership

Unit cost guidance

Executive Leadership Team update

WAIO, Escondida and Spence are expected to be within their respective unit cost guidance ranges at FY24, with BMA unit cost guidance for FY24 increasing to between US$110/t and US$116/t as a result of the lowered production guidance.

In December, we announced a number of changes to our Executive Leadership Team, effective 1 March 2024, including that Catherine Raw will join BHP from SSE plc as Chief Development Officer effective 29 April 2024.

Production

Quarter performance

YTD performance

FY24 production guidance


Q2 FY24

v Q1 FY24

v Q2 FY23

HY24

v HY23

Previous

Current


Copper (kt)

437.4

(4%)

3%

        894.4

7%

1,720 - 1,910

1,720 - 1,910


  Escondida (kt)

254.6

(7%)

(1%)

        527.9

3%

1,080 - 1,180

1,080 - 1,180

Unchanged

  Pampa Norte (kt)

59.8

(24%)

(22%)

        138.1

(6%)

210 - 250i

210 - 250i

Unchanged

  Copper South Australia (kt)

82.0

14%

51%

        153.7

48%

310 - 340

310 - 340

Unchanged

  Antamina (kt)

39.2

21%

11%

          71.7

(1%)

120 - 140

120 - 140

Unchanged

  Carajás (kt)

1.8

50%


            3.0


-

-

-

Iron ore (Mt)

65.8

4%

(2%)

        129.0

(2%)

254 - 264.5

254 - 264.5


  WAIO (Mt)

64.5

4%

(2%)

        126.5

(3%)

250 - 260

250 - 260

Unchanged

  WAIO (100% basis) (Mt)

72.7

5%

(2%)

        142.1

(3%)

282 - 294

282 - 294

Unchanged

  Samarco (Mt)

1.3

6%

19%

            2.5

13%

4 - 4.5

4 - 4.5

Unchanged

Metallurgical coal - BMA (Mt)

5.7

2%

(18%)

          11.3

(17%)

28 - 31

23 - 25

Lowered

  BMA (100% basis) (Mt)

11.4

2%

(18%)

          22.6

(17%)

56 - 62

46 - 50

Lowered

Energy coal - NSWEC (Mt)

3.9

7%

35%

            7.5

36%

13 - 15

13 - 15

Upper end

Nickel - Nickel West (kt)

19.6

(3%)

11%

          39.8

4%

77 - 87

77 - 87

Unchanged











i        Production guidance for FY24 is for Spence only and excludes Cerro Colorado which produced 11 kt before ceasing production on 9 November 2023.

 

1

BHP | Operational review for the half year ended 31 December 2023

 

Summary of disclosures

BHP expects its financial results for the half year ended 31 December 2023 (HY24) to reflect certain items summarised in the table below. The table does not provide a comprehensive list of all items impacting the period. The financial statements are the subject of ongoing work that will not be finalised until the release of the financial results on 20 February 2024. Accordingly, the information in the table below contains preliminary information that is subject to update and finalisation.

Description

H1 impacti

(US$M)

Classificationii

Unit costs (at guidance FX)iii



At HY24, unit costs at WAIO and Escondida are expected to be within their respective guidance ranges, while Spence is expected to be in the lower half of its guidance range. Unit costs at BMA are expected to be substantially higher than the revised guidance range due to the lower volumes

-

Operating costs

For FY24, unit cost guidance for WAIO, Escondida and Spence remains unchanged. Unit cost guidance for BMA has been increased to between US$110/t and US$116/t as a result of the decrease in expected production, and excludes Blackwater and Daunia from the expected date of completion of the divestment

-

Operating costs

Note: weaker Australian dollar and Chilean peso than guidance rates were realised in the period

Refer footnoteiii


Income statement



The Group's adjusted effective tax rate for HY24 is expected to be in the lower half of the guidance range of 30 - 35%

-

Taxation expense

Cash flow statement



Working capital movements including net price impacts, closure and rehabilitation payments and other movements

~1,500 - 1,700

Up Operating cash flow

Cash tax paid

~3,500 - 3,600

Down Operating cash flow

Dividends received from equity-accounted investments

~200

Up Operating cash flow

Dividends paid to non-controlling interests

~600

Down Financing cash flow

Payment of the H2 FY23 dividend

~4,000

Down Financing cash flow

Balance sheet



The Group's net debt balance at 31 December 2023 is expected to be between $12.5 and $13.0 bn

-

Net debt

Exceptional items



Financial impact on BHP Brasil of the Samarco dam failure

The financial impact is expected to primarily relate to amortisation of discounting on the provision and the impact of foreign exchange

Refer footnoteiv

Exceptional item

i        Numbers are not tax effected, unless otherwise noted.

ii       There will be a corresponding balance sheet, cash flow and/or income statement impact as relevant, unless otherwise noted.

iii     Average exchange rates for HY24 of AUD/USD 0.65 (guidance rate AUD/USD 0.67) and USD/CLP 874 (guidance rate USD/CLP 810).

iv      Financial impact is the subject of ongoing work and is not yet finalised. See Iron ore section for further information on Samarco operations.

 

 


Further information in Appendix 1

Detailed production and sales information for all operations in Appendix 2

Detailed drilling results for Olympic Dam Deeps Appendix 3

 

 

 

 

 

 

 

 

 

 

 

2

BHP | Operational review for the half year ended 31 December 2023

Segment and asset performance | FY24 YTD v FY23 YTD

Copper

Production

894 kt Up 7%

HY23 834 kt

FY24e 1,720 - 1,910 kt

 

Average realised price

US$3.66/lb Down 5%

HY23 US$3.49/lb

 

 

Total copper production increased by 7% to 894 kt. Copper guidance for FY24 remains unchanged at between 1,720 and 1,910 kt.

Escondida 528 kt Up 3% (100% basis)

Increased production was primarily due to higher concentrator feed grade of 0.81%, compared to 0.79% in HY23 and higher concentrator throughput. Concentrator feed grade is expected to be between 0.85% and 0.90% for FY24. Production guidance for FY24 remains unchanged at between 1,080 and 1,180 kt.

Pampa Norte 138 kt Down 6%

Production at Spence increased 4% to a half year record of 127 kt, driven by improved concentrator throughput. Record concentrate production was partially offset by lower cathode production, in line with an expected decline in stacked feed grade. The concentrator plant modifications which commenced in August 2022 are expected to be completed in FY24.

We approved an incremental US$570 m in sustaining capital to progress remediation of previously identified anomalies in the Spence Tailings Storage Facility (TSF). These plans have been developed with the Engineer of Record, Independent Tailings Review Board and expert consultants. This is the first stage to remediate the TSF. Production guidance for Spence for FY24 remains unchanged at between 210 and 250 kt and remains subject to successful remediation of the TSF anomalies.

Cerro Colorado entered temporary care and maintenance in December 2023, after producing 11 kt for the period.

Copper South Australia 154 kt Up 48%

Production increased by 51 kt due to the additional volumes from Prominent Hill and Carrapateena. Successful integration of the Copper South Australia asset has resulted in strong underlying operational performance, including record quarterly copper production at Carrapateena in Q2. Strong smelter performance at Olympic Dam was supported by increased transfers of concentrate from Prominent Hill for processing to higher margin cathode. Olympic Dam also delivered record half year gold production and sales.

Production guidance for FY24 remains unchanged at between 310 and 340 kt.

Crusher 2 at Carrapateena remains on track to come online in Q3 FY24 and to ramp up in Q4 FY24. We have also had continued success with exploration drilling across the asset. Drilling to date beneath the known Olympic Dam ore body (OD Deeps) confirms attractive mineralisation continuity at above 1% copper grade (refer to Appendix 3). At Oak Dam, there are 12 active drill rigs (up from 10) and the accommodation camp is nearing completion.

Other copper

At Antamina, copper production decreased by 1% to 72 kt, while zinc production was 10% higher at 69 kt, both in line with planned concentrator feed grades. Production guidance at Antamina remains unchanged for FY24 with expected copper production of between 120 to 140 kt and zinc production of between 85 and 105 kt.

Carajás produced 3.0 kt of copper and 2.1 troy koz of gold. Operations were stopped in August due to a geotechnical event, and gradually restarted in October. In Q3 FY24 operations will continue to ramp back up with shipments also expected to resume.

 

 

 

3

 

BHP | Operational review for the half year ended 31 December 2023

Iron ore

Production

129 Mt Down 2%

HY23 132 Mt

FY24e 254 - 264.5 Mt

 

Average realised price

US$103.70/wmt Up 21%

HY23 US$85.46/wmt

 

 

 

Total iron ore production decreased by 2% to 129 Mt. Guidance for FY24 remains unchanged at between 254 and 264.5 Mt.

WAIO 126 Mt Down 3% | 142 Mt (100% basis)

Lower production due to the continued tie-in activity for the Rail Technology Programme (RTP1), and the impacts of the ongoing ramp up of the Central Pilbara hub (South Flank and Mining Area C).

South Flank is on track to ramp up to full production capacity of 80 Mtpa (100% basis) by the end of FY24. The planned tie-in of the Port Debottlenecking Project (PDP1) is on track to be completed in CY24, following commissioning on 7 December 2023.

Production guidance for FY24 remains unchanged at between 250 and 260 Mt (282 and 294 Mt on a 100% basis).

Samarco 2.5 Mt Up 13% | 5.1 Mt (100% basis)

Production increased as a result of higher concentrator throughput. Production guidance for FY24 remains unchanged at between 4 and 4.5 Mt.

In December 2023, BHP Brasil approved up to US$925 m in further financial support for the Renova Foundation. The funding is for CY24 and will be deducted from the Group's provision for the Samarco dam failure.  

Coal

Metallurgical coal

Production

11.3 Mt Down 17%

HY23 13.6 Mt

FY24e 23 - 25 Mt

 

Average realised price

US$266.43/t Down 1%

HY23 US$268.73/t  

BMA 11.3 Mt Down 17% | 22.6 Mt (100% basis)

On 15 January, a team member from BEP Engineering & Maintenance, a contracting partner to BMA, was fatally injured in a vehicle incident at Saraji mine. Investigations are underway and we are working closely with the relevant authorities. Operations at Saraji were suspended and are expected to progressively restart over the coming days.

In the period, lower production was a result of a significant increase in planned maintenance across the asset, the extended longwall move, and geotechnical faulting which impacted underground operations at Broadmeadow until early November. Production was also impacted by an increase in prime stripping to improve value chain stability following depleted inventory positions arising from extended weather impacts and labour constraints over recent years.

Full year production guidance is now expected to be between 23 and 25 Mt (46 and 50 Mt on a 100% basis). This guidance excludes Blackwater and Daunia from the date of completion of the divestment which is expected to occur on 2 April 2024. This has been lowered from 28 - 31 Mt (56 and 62 Mt on a 100% basis), inclusive of Blackwater and Daunia.

Energy coal

Production

7.5 Mt Up 36%

HY23 5.5 Mt

FY24e 13 - 15 Mt

 

Average realised price

US$123.29/t Up 65%

HY23 US$354.30/t

NSWEC 7.5 Mt Up 36%

Increased production as a result of strong operating performance as eased labour constraints and improved weather conditions enabled an uplift in truck productivity, with record annualised truck hours for the half. Domestic sales under the NSW Government Coal Market Price Emergency (Directions for Coal Mines) Notice commenced in Q4 FY23, which resulted in a lower proportion of washed coal and contributed to the higher volumes.

Production guidance for FY24 is expected to be at the upper end of the range of between 13 and 15 Mt.

We submitted a modification request to the NSW Government to extend mining approval to 30 June 2030 in support of the 2030 closure plan. The modification submission went on public exhibition for four weeks in November 2023.  The approval process will continue through FY24.

 

4

 BHP | Operational review for the half year ended 31 December 2023

Group & Unallocated

Nickel

Production

40 kt Up 4%

HY23 38 kt

FY24e 77 - 87 kt

 

Average realised price

US$18,602/t Down 24%

HY23 US$24,362/t

Nickel West 40 kt Up 4%

Production increased due to improved performance, and a shorter shutdown period at the Kalgoorlie Smelter offsetting downtime at the Kwinana Refinery.

Production guidance remains unchanged at between 77 and 87 kt for FY24.

The nickel industry is undergoing a number of structural changes and is at a cyclical low in realised pricing. Nickel West is not immune to these challenges. Operations are being actively optimised, and options are being evaluated to mitigate the impacts of the sharp fall in nickel prices. Given the market conditions, a carrying value assessment of the Group's nickel assets is ongoing, and a further update will be provided with the release of the financial results on 20 February 2024.

 

Quarterly performance | Q2 FY24 v Q1 FY24

Copper

Iron ore

437 kt Down 4%

Q1 FY24 457 kt

Lower concentrator grade at Escondida and concentrator throughput at Spence, partially offset by higher volumes at Copper South Australia following planned maintenance in Q1.

66 Mt Up 4%

Q1 FY24 63 Mt

Increased production at WAIO as a result of the Q1 impacts of the RTP1 integration, planned equipment maintenance and Central Pilbara hub ramp up.

Metallurgical coal

Energy coal

5.7 Mt Up 2%

Q1 FY24 5.6 Mt

Production increased due to the lower planned wash plant maintenance, the ramp up of the longwall at Broadmeadow, and improved strip ratio. This was partially offset by significantly increased rainfall.

3.9 Mt Up 7%

Q1 FY24 3.6 Mt

Higher production as a result of strong performance across the value chain, largely driven by strong Q1 stripping performance, and the opportune draw down of raw coal.

Nickel


20 kt Down 3%

Q1 FY24 20 kt

Lower volumes due to downtime at the Kwinana Refinery.







The following footnotes apply to this Operational Review:

1       Prior year comparatives do not include production volumes for the operations acquired from OZL on 2 May 2023.

 

 

 

 

 

 

 

 

 

 

5

 

BHP | Operational review for the half year ended 31 December 2023

Appendix 1

Average realised prices1


Q2 FY24

HY24

Q2 FY24 v
Q1 FY24

HY24 v

H2 FY23

HY24 v

HY23

Copper (US$/lb)2,3,4

 3.68

 3.66

1%

(4%)

5%

Iron ore (US$/wmt, FOB)5

 109.47

 103.70

12%

4%

21%

Metallurgical coal (US$/t)6

 293.21

 266.43

24%

(2%)

(1%)

Hard coking coal (US$/t)7

 305.69

 274.99

26%

0%

2%

Weak coking coal (US$/t)7

 214.26

 204.55

12%

(18%)

(19%)

Thermal coal (US$/t)6,8

 121.35

 123.29

(3%)

(22%)

(65%)

Nickel metal (US$/t)

 16,812

 18,602

(17%)

(21%)

(24%)

1       Based on provisional, unaudited estimates. Prices exclude sales from equity accounted investments, third party product and internal sales, and represent the weighted average of various sales terms (for example: FOB, CIF and CFR), unless otherwise noted. Includes the impact of provisional pricing and finalisation adjustments.

2       At 31 December 2023, the Group had 356 kt of outstanding copper sales that were revalued at a weighted average price of US$3.87/lb. The final price of these sales will be determined over the remainder of FY24. In addition, 342 kt of copper sales from FY23 were subject to a finalisation adjustment in the current period. The displayed prices include the impact of these provisional pricing and finalisation adjustments.

3       The large majority of copper cathodes sales were linked to index price for quotation periods one month after month of shipment, and three to four months after month of shipment for copper concentrates sales with price differentials applied for location and treatment costs.

4       Does not include sales from assets acquired through the purchase of OZL.

5       The large majority of iron ore shipments were linked to index pricing for the month of shipment, with price differentials predominantly a reflection of market fundamentals and product quality. Iron ore sales for HY24 and Q2 FY24 were based on an average moisture rate of 6.7% (HY23: 6.8%).

6       The large majority of metallurgical coal and energy coal exports were linked to index pricing for the month of scheduled shipment or priced on the spot market at fixed or index-linked prices, with price differentials reflecting product quality.

7       Hard coking coal (HCC) refers generally to those metallurgical coals with a Coke Strength after Reaction (CSR) of 35 and above, which includes coals across the spectrum from Premium Coking to Semi Hard Coking coals, while weak coking coal (WCC) refers generally to those metallurgical coals with a CSR below 35.

8       Export sales only. Includes thermal coal sales from metallurgical coal mines.

Current year unit cost guidance


Previous

Current



FY24 guidance1

FY24 guidance1


Escondida unit cost (US$/lb)2

1.40 - 1.70

1.40 - 1.70

Unchanged

Spence unit cost (US$/lb)

2.00 - 2.30

2.00 - 2.30

Unchanged

WAIO unit cost (US$/t)

17.40 - 18.90

17.40 - 18.90

Unchanged

BMA unit cost (US$/t)

95 - 105

110 - 116

Increased

1       FY24 unit cost guidance is based on exchange rates of AUD/USD 0.67 and USD/CLP 810.

2       Escondida unit costs for FY24 onwards exclude revenue-based government royalties.

Medium term guidance


Production

Unit cost


guidance

guidance1

Escondida2

1,200 - 1,300 kt

US$1.30 - $1.60/lb3

Spence4

~250 kt


WAIO (100% basis)

>305 Mt

<US$17/t

1       Medium term unit cost guidance is based on exchange rates of AUD/USD 0.67 and USD/CLP 810.

2       Medium term refers to FY25 and FY26.

3       Escondida unit costs for FY24 onwards exclude revenue-based government royalties.

4       Average of 250 ktpa over five years on the basis that remediation of the previously identified TSF anomalies does not impact operations.

 

 

 

 

 

 

 

 

6

 

BHP | Operational review for the half year ended 31 December 2023

Major projects

Commodity

Project and ownership

Project scope / capacity

Capital
expenditure
US$M

First
production
target date

Progress

Potash

Jansen Stage 1
(Canada)
100%

Design, engineering and construction of an underground potash mine and surface infrastructure, with capacity to produce 4.15 Mtpa.

5,723

End-CY26

Project is 38% complete

Potash

Jansen Stage 2
(Canada)
100%

Development of additional mining districts, completion of the second shaft hoist infrastructure, expansion of processing facilities and addition of rail cars to facilitate production of an incremental 4.36 Mtpa.

4,859

FY29

Approval announced October 2023

The operating expenditure related to Potash for HY24 is expected to be ~US$130 m.

Exploration

Minerals exploration and evaluation expenditure was US$199 m for HY24 (HY23: US$156 m) of which US$170 m was expensed (HY23: US$127 m).

 

 

 


 

 

 

7

 


BHP | Operational review for the half year ended 31 December 2023

Appendix 2





Production



Sales





Quarter ended


Year to date



Quarter ended


Year to date





Dec

Mar

Jun

Sep

Dec


Dec

Dec

Var



Dec

Mar

Jun

Sep

Dec


Dec

Dec

Var





2022

2023

2023

2023

2023


2023

2022

%



2022

2023

2023

2023

2023


2023

2022

%

Group production and sales summary


By commodity


Metals production is payable metal unless otherwise noted.


Throughout this report figures in italics indicate that this figure has been adjusted since it was previously reported.


Copper

Payable metal in concentrate

kt


276.0

262.4

310.7

317.3

308.7


626.0

544.8

15%



272.7

268.4

323.1

298.0

316.5


614.5

533.0

15%


Escondida

kt


208.3

200.8

220.5

221.3

207.7


429.0

411.4

4%



216.0

197.3

220.3

209.5

211.7


421.2

412.7

2%


Pampa Norte

kt


32.5

32.0

32.2

38.8

32.6


71.4

61.1

17%



22.0

38.7

38.6

31.3

34.9


66.2

48.0

38%


Copper South Australia

kt




19.9

23.5

27.4


50.9







27.6

22.2

31.6


53.8




Antamina

kt


35.2

29.6

36.5

32.5

39.2


71.7

72.3

(1)%



34.7

32.4

34.5

32.8

38.3


71.1

72.3

(2)%


Carajás

kt




1.6

1.2

1.8


3.0







2.1

2.2

-


2.2




Cathode

kt


148.3

143.5

165.5

139.7

128.7


268.4

289.6

(7)%



155.9

130.3

179.9

131.9

137.6


269.5

290.1

(7)%


Escondida

kt


49.7

50.8

72.5

52.0

46.9


98.9

99.3

0%



53.5

43.8

78.0

49.2

52.2


101.4

99.4

2%


Pampa Norte

kt


44.2

41.0

36.3

39.5

27.2


66.7

86.2

(23)%



45.6

36.0

42.4

36.6

31.1


67.7

88.0

(23)%


Copper South Australia

kt


54.4

51.7

56.7

48.2

54.6


102.8

104.1

(1)%



56.8

50.5

59.5

46.1

54.3


100.4

102.7

(2)%


Total

kt


424.3

405.9

476.2

457.0

437.4


894.4

834.4

7%



428.6

398.7

503.0

429.9

454.1


884.0

823.1

7%

Lead

Payable metal in concentrate

t


114

169

146

96

105


201

342

(41)%



91

181

143

154

91


245

221

11%


Antamina

t


114

169

146

96

105


201

342

(41)%



91

181

143

154

91


245

221

11%

Zinc

Payable metal in concentrate

t


29,929

23,612

38,822

35,669

33,475


69,144

62,614

10%



29,127

25,851

37,629

33,912

37,092


71,004

62,947

13%


Antamina

t


29,929

23,612

38,822

35,669

33,475


69,144

62,614

10%



29,127

25,851

37,629

33,912

37,092


71,004

62,947

13%

Gold

Payable metal in concentrate

troy oz


52,277

57,106

96,655

89,024

94,794


183,818

96,034

91%



52,277

57,106

108,552

87,703

98,969


186,672

96,034

94%


Escondida

troy oz


48,402

48,954

53,503

48,063

48,633


96,696

86,638

12%



48,402

48,954

53,503

48,063

48,633


96,696

86,638

12%


Pampa Norte

troy oz


3,875

8,152

9,263

3,931

2,854


6,785

9,396

(28)%



3,875

8,152

9,263

3,931

2,854


6,785

9,396

(28)%


Copper South Australia

troy oz




32,736

36,228

42,051


78,279







44,098

34,176

47,482


81,658




Carajás

troy oz




1,153

802

1,256


2,058







1,688

1,533

-


1,533




Refined gold

troy oz


43,280

49,086

46,479

53,028

55,828


108,856

90,464

20%



41,900

47,300

49,182

54,036

55,349


109,385

91,442

20%


Copper South Australia

troy oz


43,280

49,086

46,479

53,028

55,828


108,856

90,464

20%



41,900

47,300

49,182

54,036

55,349


109,385

91,442

20%


Total

troy oz


95,557

106,192

143,134

142,052

150,622


292,674

186,498

57%



94,177

104,406

157,734

141,739

154,318


296,057

187,476

58%

Silver

Payable metal in concentrate

troy koz


2,678

2,556

2,592

2,582

3,074


5,656

5,330

6%



2,605

2,523

2,409

2,527

2,938


5,465

5,082

8%


Escondida

troy koz


1,510

1,346

1,008

1,168

1,401


2,569

2,720

(6)%



1,510

1,346

1,008

1,168

1,401


2,569

2,720

(6)%


Pampa Norte

troy koz


245

409

412

356

388


744

497

50%



245

409

412

356

388


744

497

50%


Copper South Australia

troy koz




201

260

310


570







242

258

364


622




Antamina

troy koz


923

801

971

798

975


1,773

2,113

(16)%



850

768

747

745

785


1,530

1,865

(18)%


Refined silver

troy koz


261

277

256

261

221


482

556

(13)%



233

307

270

219

222


441

553

(20)%


Copper South Australia

troy koz


261

277

256

261

221


482

556

(13)%



233

307

270

219

222


441

553

(20)%


Total

troy koz


2,939

2,833

2,848

2,843

3,295


6,138

5,886

4%



2,838

2,830

2,679

2,746

3,160


11,371

10,717

6%

Uranium

Payable metal in concentrate

t


943

833

813

825

986


1,811

1,760

3%



1,127

683

1,275

481

895


1,376

1,399

(2)%


Copper South Australia

t


943

833

813

825

986


1,811

1,760

3%



1,127

683

1,275

481

895


1,376

1,399

(2)%

Molybdenum

Payable metal in concentrate

t


564

636

666

612

481


1,093

860

27%



514

789

594

564

468


1,032

789

31%


Pampa Norte

t


216

407

333

329

145


474

250

90%



216

492

367

303

162


465

241

93%


Antamina

t


348

229

333

283

336


619

610

1%



298

297

227

261

306


567

548

3%

Iron ore

Western Australia Iron Ore (WAIO)

kt


65,807

58,725

64,074

62,004

64,460


126,464

129,732

(3)%



64,496

59,204

62,926

64,180

62,606


126,786

126,753

0%


Samarco

kt


1,095

1,048

1,221

1,231

1,302


2,533

2,243

13%



1,097

1,111

1,160

1,136

1,329


2,465

2,243

10%


Total

kt


66,902

59,773

65,295

63,235

65,762


128,997

131,975

(2)%



65,593

60,315

64,086

65,316

63,935


129,251

128,996

0%

Metallurgical coal¹

BHP Mitsubishi Alliance (BMA)

kt


6,952

6,929

8,477

5,601

5,717


11,318

13,614

(17)%



7,027

6,186

8,876

5,325

5,706


11,031

13,509

(18)%

Energy coal

NSW Energy Coal (NSWEC)

kt


2,851

3,934

4,765

3,613

3,855


7,468

5,473

36%



2,862

3,667

4,894

3,307

4,250


7,557

5,303

43%

Nickel

Nickel West

kt


17.7

19.6

22.0

20.2

19.6


39.8

38.4

4%



18.4

19.6

23.4

18.9

20.0


38.9

39.1

(1)%

Cobalt

Nickel West

t


93

175

246

192

182


374

331

13%



93

175

246

192

110


302

331

(9)%

1 Includes BMA thermal coal sales.























 

 

 

 

 

8

 

 

 

 

BHP | Operational review for the half year ended 31 December 2023

 





Production



Sales





Quarter ended


Year to date



Quarter ended


Year to date





Dec

Mar

Jun

Sep

Dec


Dec

Dec

Var



Dec

Mar

Jun

Sep

Dec


Dec

Dec

Var





2022

2023

2023

2023

2023


2023

2022

%



2022

2023

2023

2023

2023


2023

2022

%

Production and sales























By asset
























Copper
























Metals production is payable metal unless otherwise noted.























Escondida, Chile¹


BHP interest 57.5%





















Material mined

kt


101,987

106,170

95,451

87,462

95,168


182,630

212,235

(14)%







Concentrator throughput

kt


33,911

33,309

30,750

33,332

34,752


68,084

66,805

2%





Average copper grade - concentrator

%


0.76%

0.78%

0.93%

0.85%

0.78%


0.81%

0.79%

2%





Production ex mill

kt


212.8

210.0

228.9

225.7

217.6


443.3

427.4

4%





Payable copper

kt


208.3

200.8

220.5

221.3

207.7


429.0

411.4

4%



216.0

197.3

220.3

209.5

211.7


421.2

412.7

2%


Copper cathode (EW)

kt


49.7

50.8

72.5

52.0

46.9


98.9

99.3

0%



53.5

43.8

78.0

49.2

52.2


101.4

99.4

2%


 Oxide leach

kt


17.6

14.7

29.3

17.5

17.0


34.5

32.8

5%







 Sulphide leach

kt


32.1

36.1

43.2

34.5

29.9


64.4

66.5

(3)%





Total copper

kt


258.0

251.6

293.0

273.3

254.6


527.9

510.7

3%



269.5

241.1

298.3

258.7

263.9


522.6

512.1

2%


Payable gold concentrate

troy oz


48,402

48,954

53,503

48,063

48,633


96,696

86,638

12%



48,402

48,954

53,503

48,063

48,633


96,696

86,638

12%


Payable silver concentrate

troy koz


1,510

1,346

1,008

1,168

1,401


2,569

2,720

(6)%



1,510

1,346

1,008

1,168

1,401


2,569

2,720

(6)%

1 Shown on a 100% basis.















































Pampa Norte, Chile


BHP interest 100%




















Copper

Payable metal in concentrate

kt


32.5

32.0

32.2

38.8

32.6


71.4

61.1

17%



22.0

38.7

38.6

31.3

34.9


66.2

48.0

38%


Cathode

kt


44.2

41.0

36.3

39.5

27.2


66.7

86.2

(23)%



45.6

36.0

42.4

36.6

31.1


67.7

88.0

(23)%


Total copper

kt


76.7

73.0

68.5

78.3

59.8


138.1

147.3

(6)%



67.6

74.7

81.0

67.9

66.0


133.9

136.0

(2)%

Gold


troy oz


3,875

8,152

9,263

3,931

2,854


6,785

9,396

(28)%



3,875

8,152

9,263

3,931

2,854


6,785

9,396

(28)%

Silver


troy koz


245

409

412

356

388


744

497

50%



245

409

412

356

388


744

497

50%

Molybdenum


t


216

407

333

329

145


474

250

90%



216

492

367

303

162


465

241

93%

























Cerro Colorado¹

























Material mined

kt


583

172

145

-

-


-

3,762

(100)%







Ore stacked

kt


4,119

3,567

3,928

154

-


154

8,492

(98)%





Average copper grade - stacked

%


0.56%

0.57%

0.53%

0.58%

-


0.58%

0.55%

6%





Copper cathode (EW)

kt


12.2

12.0

12.2

9.5

1.6


11.1

25.0

(56)%



12.2

10.9

14.1

8.8

3.7


12.5

25.5

(51)%

























Spence

























Material mined

kt


26,980

24,858

25,622

27,654

25,973


53,627

53,936

(1)%







Ore stacked

kt


5,155

4,947

5,625

5,113

4,744


9,857

10,732

(8)%





Average copper grade - stacked

%


0.66%

0.60%

0.58%

0.60%

0.59%


0.60%

0.68%

(13)%





Concentrator throughput

kt


7,602

7,290

6,927

8,473

7,151


15,624

14,035

11%





Average copper grade - concentrator

%


0.60%

0.61%

0.61%

0.64%

0.65%


0.64%

0.61%

5%





Payable copper

kt


32.5

32.0

32.2

38.8

32.6


71.4

61.1

17%



22.0

38.7

38.6

31.3

34.9


66.2

48.0

38%


Copper cathode (EW)

kt


32.0

29.0

24.1

30.0

25.6


55.6

61.2

(9)%



33.4

25.1

28.3

27.8

27.4


55.2

62.5

(12)%


Total copper

kt


64.5

61.0

56.3

68.8

58.2


127.0

122.3

4%



55.4

63.8

66.9

59.1

62.3


121.4

110.5

10%


Payable gold concentrate

troy oz


3,875

8,152

9,263

3,931

2,854


6,785

9,396

(28)%



3,875

8,152

9,263

3,931

2,854


6,785

9,396

(28)%


Payable silver concentrate

troy koz


245

409

412

356

388


744

497

50%



245

409

412

356

388


744

497

50%


Payable molybdenum

t


216

407

333

329

145


474

250

90%



216

492

367

303

162


465

241

93%

1 Cerro Colorado entered temporary care and maintenance in December 2023.































 

 

 

 

 

 

 

 

 

9

 

 

 

BHP | Operational review for the half year ended 31 December 2023

 





Production



Sales





Quarter ended


Year to date



Quarter ended


Year to date





Dec

Mar

Jun

Sep

Dec


Dec

Dec

Var



Dec

Mar

Jun

Sep

Dec


Dec

Dec

Var





2022

2023

2023

2023

2023


2023

2022

%



2022

2023

2023

2023

2023


2023

2022

%

Copper (continued)

Copper South Australia, Australia

BHP interest 100%




















Copper

Payable metal in concentrate

kt




19.9

26.2

30.6


56.8







27.6

22.2

31.6


53.8




Cathode

kt


54.4

51.7

56.7

48.2

54.6


102.8

104.1

(1)%



56.8

50.5

59.5

46.1

54.3


100.4

102.7

(2)%


Total copper

kt


54.4

51.7

76.6

74.4

85.2


159.6

104.1

53%



56.8

50.5

87.1

68.3

85.9


154.2

102.7

50%


Payable metal in concentrate transfer to Olympic Dam¹

kt




-

(2.7)

(3.2)


(5.9)







Net copper

kt


54.4

51.7

76.6

71.7

82.0


153.7

104.1

48%



Gold

Payable metal in concentrate

troy oz




32,736

41,424

48,051


89,475







44,098

34,176

47,482


81,658




Refined gold

troy oz


43,280

49,086

46,479

53,028

55,828


108,856

90,464

20%



41,900

47,300

49,182

54,036

55,349


109,385

91,442

20%


Total gold

troy oz


43,280

49,086

79,215

94,452

103,879


198,331

90,464

119%



41,900

47,300

93,280

88,212

102,831


191,043

91,442

109%


Payable metal in concentrate transfer to Olympic Dam¹

troy oz




-

(5,196)

(6,000)


(11,196)







Net gold

troy oz


43,280

49,086

79,215

89,256

97,879


187,135

90,464

107%



Silver

Payable metal in concentrate

troy koz




201

271

323


594







242

258

364


622




Refined silver

troy koz


261

277

256

261

221


482

556

(13)%



233

307

270

219

222


441

553

(20)%


Total silver

troy koz


261

277

457

532

544


1,076

556

94%



233

307

512

477

586


1,063

553

92%


Payable metal in concentrate transfer to Olympic Dam¹

troy koz




-

(11)

(13)


(24)







Net silver

troy koz


261

277

457

521

531


1,052

556

89%



Uranium


t


943

833

813

825

986


1,811

1,760

3%



1,127

683

1,275

481

895


1,376

1,399

(2)%

























Olympic Dam

























Material mined

kt


2,264

2,317

2,356

2,655

2,537


5,192

4,676

11%







Ore milled

kt


2,687

2,433

2,755

2,596

2,634


5,230

5,257

(1)%





Average copper grade

%


2.08%

1.95%

2.00%

1.96%

2.12%


2.04%

2.10%

(3)%





Average uranium grade

kg/t


0.58

0.59

0.55

0.56

0.62


0.59

0.58

2%





Copper cathode (ER and EW)

kt


54.4

51.7

56.7

48.2

54.6


102.8

104.1

(1)%



56.8

50.5

59.5

46.1

54.3


100.4

102.7

(2)%


Refined gold

troy oz


43,280

49,086

46,479

53,028

55,828


108,856

90,464

20%



41,900

47,300

49,182

54,036

55,349


109,385

91,442

20%


Refined silver

troy koz


261

277

256

261

221


482

556

(13)%



233

307

270

219

222


441

553

(20)%


Payable uranium

t


943

833

813

825

986


1,811

1,760

3%



1,127

683

1,275

481

895


1,376

1,399

(2)%

























Prominent Hill²

























Material mined

kt




661

1,110

1,125


2,235









Ore milled

kt




1,228

1,652

1,800


3,452







Average copper grade

%




0.77%

0.85%

0.83%


0.84%







Production ex mill

kt




16.3

23.8

23.6


47.4







Payable copper

kt




8.2

12.1

12.9


25.0







15.7

8.4

10.6


19.0




Payable gold concentrate

troy oz




17,432

22,031

25,779


47,810







28,856

15,524

20,045


35,569




Payable silver concentrate

troy koz




44

63

65


128







87

53

59


112



























Carrapateena²

























Material mined

kt




880

1,201

1,310


2,511









Ore milled

kt




856

1,230

1,307


2,537







Average copper grade

%




1.52%

1.29%

1.52%


1.41%







Production ex mill

kt




30.1

37.6

49.2


86.8







Payable copper

kt




11.7

14.1

17.7


31.8







11.9

13.8

21.0


34.8




Payable gold concentrate

troy oz




15,304

19,393

22,272


41,665







15,242

18,652

27,437


46,089




Payable silver concentrate

troy koz




157

208

258


466







155

205

305


510



1 Excludes prior year production previously reported and transferred during the period.

2 Production and sales included from 1 May 2023, following the acquisition of OZL on 2 May 2023.

 

 

 

 

 

 

 

 

10

 

BHP | Operational review for the half year ended 31 December 2023

 





Production



Sales





Quarter ended


Year to date



Quarter ended


Year to date





Dec

Mar

Jun

Sep

Dec


Dec

Dec

Var



Dec

Mar

Jun

Sep

Dec


Dec

Dec

Var





2022

2023

2023

2023

2023


2023

2022

%



2022

2023

2023

2023

2023


2023

2022

%

Copper (continued)
























Antamina, Peru


BHP interest 33.75%





















Material mined

kt


68,750

57,939

62,894

63,310

61,539


124,849

132,615

(6)%







Concentrator throughput

kt


14,272

12,349

13,897

14,246

14,824


29,070

28,130

3%





Average head grade - copper

%


0.86%

0.88%

0.88%

0.83%

0.90%


0.87%

0.89%

(3)%





Average head grade - zinc

%


0.99%

1.06%

1.25%

1.17%

1.03%


1.10%

1.04%

6%





Payable copper

kt


35.2

29.6

36.5

32.5

39.2


71.7

72.3

(1)%



34.7

32.4

34.5

32.8

38.3


71.1

72.3

(2)%


Payable zinc

t


29,929

23,612

38,822

35,669

33,475


69,144

62,614

10%



29,127

25,851

37,629

33,912

37,092


71,004

62,947

13%


Payable silver

troy koz


923

801

971

798

975


1,773

2,113

(16)%



850

768

747

745

785


1,530

1,865

(18)%


Payable lead

t


114

169

146

96

105


201

342

(41)%



91

181

143

154

91


245

221

11%


Payable molybdenum

t


348

229

333

283

336


619

610

1%



298

297

227

261

306


567

548

3%

























Carajás, Brazil¹


BHP interest 100%





















Material mined

kt




103

74

115


189









Ore milled

kt




100

70

119


189







Average copper grade

%




1.71%

1.91%

1.69%


1.77%







Production ex mill

kt




6.6

5.2

7.6


12.8







Payable copper

kt




1.6

1.2

1.8


3.0







2.1

2.2

-


2.2




Payable gold concentrate

troy oz




1,153

802

1,256


2,058







1,688

1,533

-


1,533



1 Production and sales included from 1 May 2023, following the acquisition of OZL on 2 May 2023. 






Production



Sales





Quarter ended


Year to date



Quarter ended


Year to date





Dec

Mar

Jun

Sep

Dec


Dec

Dec

Var



Dec

Mar

Jun

Sep

Dec


Dec

Dec

Var





2022

2023

2023

2023

2023


2023

2022

%



2022

2023

2023

2023

2023


2023

2022

%

Iron ore
























Iron ore production and sales are reported on a wet tonnes basis.























WAIO, Australia


BHP interest 85%





















Newman

kt


16,172

11,925

14,795

13,234

15,468


28,702

30,225

(5)%







Area C Joint Venture

kt


26,302

25,284

28,818

25,804

26,074


51,878

53,273

(3)%





Yandi Joint Venture

kt


5,613

4,941

5,359

3,150

4,978


8,128

11,110

(27)%





Jimblebar¹

kt


17,720

16,575

15,102

19,816

17,940


37,756

35,124

7%





Total

kt


65,807

58,725

64,074

62,004

64,460


126,464

129,732

(3)%





Total (100%)

kt


74,292

66,163

72,717

69,448

72,670


142,118

146,427

(3)%





Lump

kt







20,375

18,021

20,022

20,969

19,176


40,145

39,936

1%


Fines

kt





44,121

41,183

42,904

43,211

43,430


86,641

86,817

0%


Total

kt





64,496

59,204

62,926

64,180

62,606


126,786

126,753

0%


Total (100%)

kt





72,688

66,580

71,172

71,748

70,340


142,088

142,964

(1)%

1 Shown on a 100% basis. BHP interest in saleable production is 85%.



















































Production



Sales





Quarter ended


Year to date



Quarter ended


Year to date



























































Dec

Mar

Jun

Sep

Dec


Dec

Dec



Dec

Mar

Jun

Sep

Dec


Dec

Dec

Var





2022

2023

2023

2023

2023


2023

2022

%



2022

2023

2023

2023

2023


2023

2022

%

Samarco, Brazil


BHP interest 50%





















Total

kt


1,095

1,048

1,221

1,231

1,302


2,533

2,243

13%



1,097

1,111

1,160

1,136

1,329


2,465

2,243

10%

















































Coal
























Coal production is reported on the basis of saleable product.























BMA, Australia


BHP interest 50%





















Blackwater

kt


1,160

1,107

1,505

1,295

1,182


2,477

2,443

1%







Goonyella

kt


1,997

2,185

2,348

827

1,736


2,563

3,777

(32)%





Peak Downs

kt


1,480

1,251

1,424

1,121

846


1,967

2,805

(30)%





Saraji

kt


1,243

1,007

1,326

1,010

701


1,711

2,263

(24)%





Daunia

kt


441

607

617

545

431


976

765

28%





Caval Ridge

kt


631

772

1,257

803

821


1,624

1,561

4%





Total¹

kt


6,952

6,929

8,477

5,601

5,717


11,318

13,614

(17)%





Total  (100%)

kt


13,904

13,858

16,954

11,202

11,434


22,636

27,228

(17)%





Coking coal

kt







5,872

5,372

7,448

4,497

4,756


9,253

11,487

(19)%


Weak coking coal

kt





727

710

1,064

529

752


1,281

1,327

(3)%


Thermal coal

kt





428

104

364

299

198


497

695

(28)%


Total

kt





7,027

6,186

8,876

5,325

5,706


11,031

13,509

(18)%


Total (100%)

kt





14,054

12,372

17,752

10,650

11,412


22,062

27,018

(18)%

1 Production figures include some thermal coal.















































 

 

11

 

 

BHP | Operational review for the half year ended 31 December 2023

 





Production



Sales





Quarter ended


Year to date



Quarter ended


Year to date





Dec

Mar

Jun

Sep

Dec


Dec

Dec

Var



Dec

Mar

Jun

Sep

Dec


Dec

Dec

Var





2022

2023

2023

2023

2023


2023

2022

%



2022

2023

2023

2023

2023


2023

2022

%

NSWEC, Australia


BHP interest 100%





















Export

kt







2,862

3,667

4,693

3,087

3,942


7,029

5,303

33%


Domestic¹

kt







                          201

220

308


528




Total

kt


2,851

3,934

4,765

3,613

3,855


7,468

5,473

36%



2,862

3,667

4,894

3,307

4,250


7,557

5,303

43%

1 Domestic sales are made under the NSW Government Coal Market Price Emergency (Directions for Coal Mines) Notice 2023.















































Production



Sales





Quarter ended


Year to date



Quarter ended


Year to date





Dec

Mar

Jun

Sep

Dec


Dec

Dec

Var



Dec

Mar

Jun

Sep

Dec


Dec

Dec

Var





2022

2023

2023

2023

2023


2023

2022

%



2022

2023

2023

2023

2023


2023

2022

%

Other
























Nickel production is reported on the basis of saleable product.























Nickel West, Australia

BHP interest 100%




















Mt Keith

Nickel concentrate

kt


39.6

38.8

44.5

42.7

43.8


86.5

82.2

5%







Average nickel grade

%


15.5

16.5

16.2

16.7

16.8


16.8

16.3

3%




Leinster

Nickel concentrate

kt


47.9

68.4

71.1

66.0

63.4


129.4

114.7

13%





Average nickel grade

%


9.4

8.6

8.5

8.1

8.0


8.1

9.7

(17)%





Refined nickel¹

kt


10.8

13.2

13.1

13.8

12.6


26.4

28.3

(7)%



10.2

13.0

13.1

13.2

13.0


26.2

28.3

(7)%


Nickel sulphate²

kt


0.4

0.9

0.7

0.9

0.7


1.6

1.6

0%



0.5

0.9

0.8

0.8

0.7


1.5

1.3

15%


Intermediates and nickel by-products³

kt


6.5

5.5

8.2

5.5

6.3


11.8

8.5

39%



7.7

5.7

9.5

4.9

6.3


11.2

9.5

18%


Total nickel

kt


17.7

19.6

22.0

20.2

19.6


39.8

38.4

4%



18.4

19.6

23.4

18.9

20.0


38.9

39.1

(1)%


Cobalt by-products

t


93

175

246

192

182


374

331

13%



93

175

246

192

110


302

331

(9)%

1 High quality refined nickel metal, including briquettes and powder.























2 Nickel sulphate crystals produced from nickel powder.























3 Nickel contained in matte and by-product streams.























 

 

 


 

12


BHP | Operational review for the half year ended 31 December 2023

Appendix 3

Explanatory Notes and JORC Table 1

Project status update - Olympic Dam "Deeps" (OD Deeps)

In 2006-07, three deep holes were drilled below known Olympic Dam mineralisation, testing a modelled density anomaly, and subsequently intersected mineralisation. These holes, RD1988, RD2786A and RD2785 returned mineralised intercepts.

Table 1. Historic deep drilling below Olympic Dam from 2006-07.

Hole ID

Depth from
(m)

Depth to
(m)

Interval
(m)

Cu
(%)

U3O8
(ppm)

Au
(g/t)

Ag
(g/t)

Density
(g/cm3)

RD1988

922

1897.9

975.9

1.53

266

0.98

4.24

3.73

RD2786A

1771

1847

76

1.36

279

0.92

4.67

3.82

and

1925

2027

102

1.52

288

0.74

5.92

3.57

RD2785

2058

2184

126

0.86

228

0.49

2.61

3.05

In 2020-21 BHP Olympic Dam geologists reviewed mineralisation potential at depth and commenced exploration drilling in 2022. As of 9th September 2023, total drilling of the OD Deeps mineralisation, including historic drilling, was approximately 62 km, with nominal drill space ranging from 160 m to 320 m. All holes completed to target depth intersected mineralisation and have outlined a mineralisation extending more than 2 km along strike, and more than 1 km in depth. Mineralisation continues to be open along strike and at depth.

The iron oxide copper gold (IOCG) mineralisation style of the OD Deeps appears similar to the main body of Olympic Dam (refer to Section 2-Reporting of Exploration Results). Mineralisation is dominantly chalcopyrite with some areas of bornite. To date, and noting wide spaced drilling, continuity continues to appear favourable above 1% copper grade. The absolute extent of mineralisation has not been discovered. However, along strike there are geological indications of decreasing brecciation as well as decreasing iron content. These suggest a diminishing system along strike.

Figure 1 describes the location of the new drilling and Figures 2, 3, 4 and 5 show the new drilling on cross section(s), long section, and level plan. Mineralised intercepts provided in Table 2 and drilling collar location is provided in Table 3.

This release reflects progress in our exploration activities at Olympic Dam. Further work will be required to enable an estimate of Mineral Resources.

 

 

 

 

13

 

BHP | Operational review for the half year ended 31 December 2023

Table 2. Length and density-weighted mineralised intercepts reported as down hole lengths.

Hole ID

Depth from
(m)

Depth to
(m)

Interval
(m)

Cu
(%)

U3O8
(ppm)

Au
(g/t)

Ag
(g/t)

Density
(g/cm3)

RU50-12091

516

1096 (EOH)

580

2.22

473

0.93

4.87

3.77

including

522

648

126

4.41

945

0.99

7.13

3.90

RD4552A

1608

2050

442

1.38

350

0.65

2.98

3.49

including

1790

1912

122

2.15

506

0.89

4.20

3.88

RD4552AW2

1862

2252

390

1.38

396

0.65

2.43

3.35

including

2124

2176

52

1.72

483

0.63

1.33

3.55

RD4577W1

2022

2322

300

1.53

426

0.72

4.16

3.52

RU50-17932

718

1000 (EOH)

282

1.46

340

0.88

3.66

3.70

including

718

744

26

3.34

876

0.93

2.04

3.98

RD4552AW3

2101

2401

300

1.50

330

1.04

5.81

3.60

including

2101

2143

42

2.09

327

1.39

12.52

3.71

RU48-14098W1

1807.5

1985

177.5

1.54

402

0.87

11.22

3.54

including

1912.5

1985

72.5

2.29

422

1.31

21.60

3.86

RU48-14099

1388

1587.5

199.5

1.68

357

0.80

6.37

3.63

including

1388

1462

74

2.35

534

0.73

6.42

3.69

RD4551

1298

1486

188

1.17

325

0.52

5.57

3.38

RD4551W1

1474

1646

172

1.52

348

0.65

7.91

3.61

including

1596

1646

50

2.03

355

0.83

9.11

3.82

RD4551W2A

1320

1390

70

1.33

327

0.73

5.09

3.76

RD4554W2

1917

1971

54

1.99

386

1.32

13.37

3.89

and

2123

2307

184

1.38

340

0.76

5.63

3.53

RD4554W3

1560

1662

102

1.74

468

0.95

2.62

3.85

and

1698

1734

36

1.67

415

0.66

1.30

3.87

RD4568W1

1384

1580

196

1.12

292

0.76

5.08

3.67

and

1626

1696

70

1.62

290

0.88

7.87

3.74

and

1816

1836

20

2.04

244

0.22

3.52

3.19

RD4554W1

1691

1911

220

1.09

293

0.77

5.69

3.50

including

1691

1713

22

1.68

456

0.91

12.02

3.50

and

2001

2041

40

2.32

439

0.57

9.20

3.36

and

2187

2211

24

1.18

464

0.24

1.50

3.06

RD4561W4

1772

1810

38

2.42

799

0.16

0.91

3.50

RU48-14097

1148

1198

50

1.25

328

0.27

0.59

3.26

and

1392

1426

34

2.37

224

0.73

8.97

3.76

and

1516

1580

64

1.38

254

0.93

5.46

3.80

RU50-12093W1

539.2

644

104.8

1.23

409

0.92

4.24

3.42

and

770

834

64

1.29

335

0.62

3.33

3.28

RU50-17930

618

782

164

1.02

306

0.61

3.93

3.41

RU48-14098

1604

1632

28

1.09

309

0.45

1.17

3.16

and

1690

1737.5

47.5

1.41

433

0.70

1.90

3.45

and

1760

1812.5

52.5

2.08

335

1.03

8.53

3.52

RU48-17326

1126

1192

66

1.36

264

0.25

<1.0

3.08

and

1332

1378

46

1.38

438

0.67

2.45

3.62

and

1524

1574

50

1.41

378

0.64

7.04

3.38

RD4573W1

1348

1380

32

1.47

340

0.20

1.07

3.00

and

1574

1680

106

1.32

331

0.75

5.71

3.94

RD4574W1

1459

1523

64

1.14

619

0.50

0.42

3.34

RD4575

1380

1390

10

1.39

349

0.31

1.15

3.04

and

1434

1494

60

1.07

511

0.38

0.75

3.29

RU50-17931

424

448

24

1.62

482

0.98

7.81

3.67

RD4561

1294

1334

40

1.31

348

0.73

5.39

3.87

RD4578A

1872

1886

14

1.03

1797

0.15

0.58

4.04

RD4571

1610

1628

18

1.08

989

0.26

4.20

3.63

14

BHP | Operational review for the half year ended 31 December 2023

Figure 1. New drill hole traces shown against all Olympic Dam drilling. Reference sections provides for cross sections and long section.

 

Figure 2. Representative cross-section (A-A' from Figure 1) showing simplified geology and down hole Cu assays.

 

Figure 3. Representative cross-section (B-B' from Figure 1) showing simplified geology and down hole Cu assays.

 

Figure 4. Representative composite long-section (C-C' and D-D' from Figure 1) showing simplified geology and significant intercepts.

 

Figure 5. Representative level plan at -1300mRL, with deeps drilling projects to level.

 

Section 1 Sampling Techniques and Data

Sampling techniques

·      Drilling included oriented diamond drilling from surface and available underground locations.

·      Diamond core was sampled at either 2 m or 2.5 m intervals in mineralisation.

Drilling techniques

·      Surface parent holes were collared in PQ3 diameter (83 mm) in the overburden and continued in HQ3 (61.1 mm) or HQ (63.5 mm). Wedge (child) holes were drilled in NQ2 (50.6 mm). Navigational drilling was completed on surface drilling and select underground drilling, and also used parent holes and subsequent wedges.

·      Underground parent holes were collared in HQ (63.5 mm) to a depth of approximately 500 m, continued in NQ2 (50.6 mm) to a depth of approximately 1,700 m, and drilling completed in BQ (36.5 mm) when required.

·      All down hole surveys used a north-seeking gyroscope to end of hole. The core was oriented using the Reflect ACT III tool. At the end of each run, the low side of the core was marked by the drillers and this was used as the reference for marking the whole drill core.

Drill sample recovery

·      Sample recoveries were visually estimated to be greater than 99%.

·      The style of mineralisation and drilling methods employed lead to very high sample recovery, so no further effort was considered necessary to increase core recovery. In general for drill core, there is no clear relationship between sample recovery and grade, and no significant bias is expected from preferential loss or gain of fine or coarse material.

Logging

·      Drill holes were logged in qualitative detail below the post mineral cover.

·      Logging included, but was not limited to, lithology composition and texture, alteration minerals, sulphide distribution and geotechnical logging for rock-mass qualification. Drill holes were logged to a level of detail that would support future studies.

·      Structural measurements were recorded from oriented core.

·      Core was photographed dry.

Sub-sampling techniques and sample preparation

·      Diamond core was split by core saw, with half core submitted for assay and the other half stored in trays at Olympic Dam. Samples are submitted as 2 m or 2.5 m intervals.

·      Approximately 4-8 kg samples were submitted to an analytical laboratory for final drying, staged crushing to 2 mm, splitting to approximately 2-3 kg portion, followed by pulverisation to 90% passing 75 micron particle size pulp.

·      Duplicate samples were collected at each preparation stage where a reduction in sample mass occurred.

 

15

 

BHP | Operational review for the half year ended 31 December 2023

·      Bulk dry density measurements were collected on all assayed samples using water immersion method.

·      Sample sizes are considered appropriate for the style of the mineralisation.

Quality of assay data and laboratory tests

·      All samples were submitted to Intertek Group Plc (Intertek), Adelaide Laboratory, South Australia.

·      Drill hole results reported here were analysed for either the routine Olympic Dam multi-element suite or an expanded Olympic Dam multi-element suite. The routine suite includes Cu, Ag, Co, Ni, Pb, Zn (3-acid digest, measured via IOC-OES) and Li-borate fusion measured via ICP-OES/MS (Al, As, Ba, Bi, Ca, Ce, Cr, Fe, K, La, Mg, Mn, Mo, Na, P, Sb, Sc, Si, Sr, Ti, U, V, Y, Zr). The expanded suite includes 4-acid digest measured via ICP-OES/MS (Cu, Ni, Pb, Zn, Ag, As, Bi, Cd, Co, Ge, In, Li, Re, Se, Te, Tl) and Li-borate fusion measured via ICP-OES/MS (Al, Ba, Be, Ca, Ce, Cr, Cs, Dy, Er, Eu, Fe, Ga, Gd, Hf, Ho, K, La, Lu, Mg, Mn, Mo, Na, Nb, Nd, P, Pr, Rb, Sb, Sc, Si, Sm, Sn, Sr, Ta, Tb, Th, Ti, Tm, U, V, W, Y, Yb, Zr) and loss-on-ignition. All samples were assayed for Au (via 25-g FA with ICP-OES finish), and C and S (via induction furnace combustion, measured by infrared analyser).

·      Comparative analysis between the 4- and 3-acid digest methods demonstrates equal accuracy and precision within the Olympic Dam mineral system. The 4-acid digest is used to expand the geochemical suite of elements when initially characterising new parts of the deposit. Drill holes (Table 3) assayed via the 3-acid method were RD4552A, RD4554, RD45554W1, RD4554W2, RD4554W3, RU48-14097, RU48-14098, RU48-14098W1, RU48-14099, RU48-17326. The remainder were assayed via the 4-acid method.

·      Quality control samples consisted of duplicates (1:25), analytical blanks (1:50) and certified standards (1:25).

·      Quality control results were reviewed when received. All performed within acceptable accuracy and precision limits.

Verification of sampling and assaying

·      BHP has robust QAQC standards and procedures relating to sampling and assay quality control.

·      Significant intersections were compiled by BHP staff members, and were verified by the Competent Person.

·      There were no adjustments to the assay data. Data is electronically uploaded to the database from the external laboratory.

·      All drill hole data is managed internally via a SQL server hosted database with strict validation rules.

·      No twinned holes have been drilled.

Location of data points

·      All surface drill hole collar locations (historic and recent) have been surveyed with Leica GS16 Rover and manually entered into acQuire database. Underground drill holes collar locations have been surveyed using Leica TS16 Total Station.

·      All coordinates are provided in Geocentric Datum of Australia 1994 (GDA94 Zone 53), and all surface collars correlate well with the Olympic Dam topographic model, and all underground drill collars correlate well with underground development.

Table 3. Collar Dip and Azimuths as presented may not reflect the variation of deep directional drilling effect at depth as per section A-A' in Figure 3.

Hole ID

Type

Collar location

Easting
(m)

Northing
(m)

RL
(m)

End of Hole
(m)

Dip
(°)

Azimuth
(°)

RD4551

parent

surface

682,771

6,628,552

100

2262.8

-76

335

RD4551W1

wedge

surface

682,771

6,628,552

100

2260.3

-76

335

RD4551W2A

wedge

surface

682,771

6,628,552

100

2257.5

-76

335

RD4552A

parent

surface

681,234

6,628,589

99

2337.6

-75

337

RD4552AW2

wedge

surface

681,234

6,628,589

99

2445.3

-75

337

RD4552AW3

wedge

surface

681,234

6,628,589

99

2523.7

-75

337

RD4554

parent

surface

681,885

6,628,678

98

1419.3

-76

327

RD4554W1

wedge

surface

681,885

6,628,678

98

2346.8

-76

327

RD4554W2

wedge

surface

681,885

6,628,678

98

2565.8

-76

327

RD4554W3

wedge

surface

681,885

6,628,678

98

2231.3

-76

327

 

16

BHP | Operational review for the half year ended 31 December 2023

 

Hole ID

Type

Collar location

Easting
(m)

Northing
(m)

RL
(m)

End of Hole
(m)

Dip
(°)

Azimuth
(°)

RD4561

parent

surface

682,257

6,628,686

101

1609.1

-74

353

RD4561W4

wedge

surface

682,257

6,628,686

101

1867.0

-74

353

RD4568W1

wedge

surface

682,257

6,628,681

101

2145.5

-76

319

RD4571

parent

surface

683,123

6,630,335

105

2554.9

-59

152

RD4572W1

wedge

surface

683,364

6,630,263

103

2661.9

-63

148

RD4573W1

wedge

surface

682,628

6,630,057

102

2320.0

-69

158

RD4574W1

wedge

surface

683,142

6,628,612

99

2667.0

-60

334

RD4575

parent

surface

683,444

6,628,602

102

1614.8

-61

336

RD4577

parent

surface

681,226

6,628,588

99

691.4

-77

326

RD4577W1

wedge

surface

681,226

6,628,588

99

2511.7

-79

330

RD4578A

parent

surface

683,439

6,628,607

102

2449.1

-65

352

RU48-14097

parent

underground

681,942

6,630,450

-474

2254.4

-55

165

RU48-14098

parent

underground

681,942

6,630,451

-474

1982.5

-62

143

RU48-14098W1

wedge

underground

681,942

6,630,451

-474

2388.4

-62

143

RU48-14099

parent

underground

681,837

6,630,515

-472

2073.9

-52

174

RU48-17326

parent

underground

681,942

6,630,449

-474

1801.1

-42

155

RU50-12091

parent

underground

681,581

6,629,753

-462

1100.0

65

229

RU50-12093W1

wedge

underground

681,587

6,629,752

-461

900.0

-59

189

RU50-17930

parent

underground

681,587

6,629,751

-461

867.5

-54

154

RU50-17931

parent

underground

681,586

6,629,751

-461

896.4

-45

190

RU50-17932

parent

underground

681,587

6,629,752

-462

1000.0

-69

198

 

Data spacing and distribution

·      Drilling from surface, and some underground, used parent and wedge-styled drilling.

·      Nominal drill space ranging from 160 m to 320 m.

·      Sample length was 2 m to 2.5m in length. No compositing was undertaken for reporting.

·      Drilling is perpendicular to the interpreted orebody orientation. The current drilling does not provide sufficient information for estimation of a Mineral Resource.

Orientation of data in relation to geological structure

·      Drilling at Olympic Dam is designed to intersect nominally perpendicular to the strike of the mineralisation.

·      Drill holes were angled approximately north-south and were designed to drill from outside the hydrothermal system, inwards towards mineralisation.

Sample security

·      Core trays are transported by BHP contractors from the drill rigs to the core processing facility at Olympic Dam, Roxby Downs. Samples in calico bags are transported from Olympic Dam via road on trucks to Intertek, Adelaide, South Australia.

 

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BHP | Operational review for the half year ended 31 December 2023

·      Calico bag numbers are automatically generated. Intertek is informed of the sample number ranges for each pending shipment and are recorded in their management system. Intertek use these to create barcode labels for Kraft geochemical bags used for storing the pulverised samples. On sample receipt, Intertek manually checks the submitted sample list against all samples in the shipment. Once the samples are pulverised, all further steps are tracked using the bar codes. BHP is informed of any discrepancies.

·      BHP has internal governance and standards related to sample security and data management. BHP undertakes routine verification of these practices.

Audits or reviews

·      OD Deeps exploration results have not been externally audited.

·      BHP routinely reviews standards, procedures and results from external laboratories. No issues have been noted from any BHP review.

Section 2 Reporting of Exploration Results

Mineral tenement and land tenure status

·      The Roxby Downs (Indenture Ratification) Act 1982 (SA) provides statutory authority for an agreement (Indenture) between BHP and the State of South Australia. The Indenture establishes the legal framework for existing and future operations at Olympic Dam and defines the roles and responsibilities of the South Australian Government and BHP. Part of the Indenture provides for the grant of Olympic Dam's special mining lease (SML).

·      The indenture confers continuous mining rights (via the SML) to BHP until the deposit is economically depleted. The lease is granted for 50 years, with extension rights for a further 50 years. Additional extensions can be requested. The current 50-year period ends in 2036. All agreements are in place as part of the normal operating practices.

Exploration done by other parties

·      The project has a long exploration history, dating back to 1975 by Western Mining Corporation (prior to their acquisition by BHP in 2005) and BHP.

Geology

·      The geology of the Olympic Dam iron-oxide copper uranium gold and silver (IOCG) deposit is described comprehensively in numerous publications. In summary, the deposit occurs entirely within the Olympic Dam Breccia Complex (ODBC) (see Figure 6), hosted within the 1,593.28 ± 0.26 Ma Roxby Downs Granite (RDG). The ODBC, which contains the mineralised rock volume, has an overall areal extent of around 50 km2. It is approximately 6 km long and 3 km wide, and typically extends to depths of 900 m and up to 2,300 m beneath the surface locally.

The ODBC is unconformably overlain by approximately ~350 m of unaltered, unmineralized Neoproterozoic to Cambrian flat-lying sedimentary rocks. The primary host rock within the ODBC is the RDG. Lesser, yet significant bedded clastic facies, clasts of 1594.63 ± 0.71 Ma Gawler Range Volcanic felsic feldspar-phyric lavas in hematite-rich breccias and dykes, and mafic-ultramafic lavas/dykes (MDY) which are pre-, syn- and post-mineralisation, are an integral part of the Olympic Dam ore-forming system. The ODBC and surrounding unbrecciated RDG are intruded by the regionally extensive ca 825 Ma Gairdner Dyke Swarm (dolerite). The host rocks for mineralisation consist of RDG and other lithologies (bedded clastic facies, felsic lavas, mafic-ultramafic lavas, sills and dykes, and a subvolcanic quartz-phyric rhyolite), all of which have been weakly to intensely brecciated (via tectonic, magmatic and hydrothermal processes). These are variably replaced by iron oxides forming a compositional continuum from recognisable lithologies to iron oxide breccias, where the primary lithology texture is obliterated by iron oxide alteration. Lithological contacts are typically obscured by faulting and brecciation.

There are more than 125 minerals within the deposit, 15 of which account for more than 98 per cent of the rock mass. The most common gangue minerals are hematite, quartz, muscovite, K-feldspar, chlorite, fluorite, siderite and barite. The dominant sulfide minerals within the deposit are chalcocite/digenite/djurleite (referred to here as chalcocite), bornite, chalcopyrite and pyrite, with lesser concentrations of sphalerite, galena, molybdenite, tennantite-tetrahedrite and trace amounts of native copper. The sulfides typically occur as disseminated grains in the breccia matrix and clasts. The grain size varies from <20 μm up to several millimetres, with an average size of ~100 μm. Suldes occur rarely as veins in granite-dominated breccias.

The Cu ± Fe sulfides display a distinct upwards and inwards deposit scale zonation, from pyrite → chalcopyrite-pyrite → chalcopyrite exsolution lamellae in brown bornite → purple bornite-chalcocite symplectites → digenite lamellae in chalcocite.

 

Figure 6. Simplified geological plan of the Olympic Dam deposit, approximately 350 m below surface.

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BHP | Operational review for the half year ended 31 December 2023

Drill hole information

·      Table 1 provides historic hole information for context. Tables 2 and 3, as well as Figures 1 and 5 provide details of new drill hole coordinates, orientations and locations, lengths and mineralised intercepts for the OD Deeps exploration drilling. Figures 2 and 3 provide representative cross sections. Figure 4 provides a representative long section.

Data aggregation methods

·      All reported intersections are length and density weighted with reported intersection in Table 2.

·      Intervals in Table 2 have more than 1% Cu with no more than 10 consecutive metres of less than 0.5% Cu, with an average internal waste of no more than 3 m. Two exceptions, due drilling orientation, to this are RD4552A (442 m mineralised interval reported) and RU48-14098W1 (177.5 m mineralised interval reported) which have single instances of 14m and 18m, respectively, internal waste <0.5%Cu.

Relationship between mineralisation widths and intercept lengths

·      Intersections are presented as apparent (downhole) lengths. True width is unknown.

Diagrams

·      Figures in the main body text provide details of drill hole location and context.

Balanced reporting

·      All exploration results from the OD Deeps exploration program to 9 September 2023 have been included.

Other substantive exploration data

·      Representative magnetic susceptibility measurements are recorded at 1 m intervals within mineralisation.

·      2D and pseudo 3D seismic data acquisition was undertaken in July 2022. In June-August 2023 BHP acquired 3D seismic data, with processing underway.

Further work

·      BHP will consider future drilling to test lateral and depth extents, as well as grade continuity.

 

Competent Person statement

The information in the report to which this statement is attached that relates to Exploration Results is based on information compiled by Dr Kathy Ehrig, a Competent Person who is a Member of The Australasian Institute of Mining and Metallurgy (FAusIMM(CP)). Dr Ehrig is a full-time employee of BHP. Dr Ehrig has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the 'Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves'. Dr Ehrig consents to the inclusion in the report of the matters based on her information in the form and context in which it appears.

 

 

 

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BHP | Operational review for the half year ended 31 December 2023

Variance analysis relates to the relative performance of BHP and/or its operations during the six months ended December 2023 compared with the six months ended December 2022, unless otherwise noted. Production volumes, sales volumes and capital and exploration expenditure from subsidiaries are reported on a 100% basis; production and sales volumes from equity accounted investments and other operations are reported on a proportionate consolidation basis. Numbers presented may not add up precisely to the totals provided due to rounding.

The following abbreviations may have been used throughout this report: billion tonnes (Bt); cost and freight (CFR); cost, insurance and freight (CIF), carbon dioxide equivalent (CO2-e), dry metric tonne unit (dmtu); free on board (FOB); giga litres (GL); greenhouse gas (GHG); grams per cubic centimeter (g/cm3), grams per tonne (g/t); high-potential injury (HPI); kilograms per tonne (kg/t); kilometre (km); million ounces per annum (Mozpa); metres (m), million pounds (Mlb); million tonnes (Mt); million tonnes per annum (Mtpa); ounces (oz); OZ Minerals Limited (OZL); part per million (ppm), pounds (lb); thousand ounces (koz); thousand ounces per annum (kozpa); thousand tonnes (kt); thousand tonnes per annum (ktpa); thousand tonnes per day (ktpd); tonnes (t); total recordable injury frequency (TRIF); wet metric tonnes (wmt); and year to date (YTD).

In this release, the terms 'BHP', the 'Group', 'BHP Group', 'we', 'us', 'our' and 'ourselves' are used to refer to BHP Group Limited and, except where the context otherwise requires, our subsidiaries. Refer to note 30 'Subsidiaries' of the Financial Statements in BHP's 30 June 2023 Annual Report for a list of our significant subsidiaries. Those terms do not include non-operated assets. Notwithstanding that this release may include production, financial and other information from non-operated assets, non-operated assets are not included in the BHP Group and, as a result, statements regarding our operations, assets and values apply only to our operated assets unless stated otherwise. Our non-operated assets include Antamina and Samarco. BHP Group cautions against undue reliance on any forward-looking statement or guidance in this release. These forward-looking statements are based on information available as at the date of this release and are not guarantees or predictions of future performance and involve known and unknown risks, uncertainties and other factors, many of which are beyond our control and which may cause actual results to differ materially from those expressed in the statements contained in this release.

 

 

 

 

 

 

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