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Environmental Assessment and Regulatory System
Annual Environmental Report Compliance Reporting
Reference ID: AER-313-74499
Period Finish: Sep/2025
Status: Submitted
Project: J05392 Paterson / Greatland Gold
-> Environmental Group Site (Site):
S0239149 Havieron Evironmental Group


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Step 1 Report Details
Company / Individual Details

NEWCREST MINING LIMITED
Site Details

J05392

Paterson / Greatland Gold

S0239149

Havieron Evironmental Group
Report Period

Oct/2024

Sep/2025
Step 3.1 Environmental Group Site - Site Activity Summary
Guidance

Provide a summary of the following for the AER reporting period:

  • The status of the site
  • exploration activities
  • operational mining activities
  • rehabilitation activities
  • progress towards mine closure (e.g. research / trials undertaken, progress with closure plan)
  • progress against the care and maintenance plan (if applicable*)

Attach supporting information in the Attach Documents section.

*   Sites on care and maintenance require a care and maintenance plan. For more information, refer to section 88 of the Mine Safety and Inspection Act 1994 and the worksheet
http://www.dmp.wa.gov.au/Documents/Environment/ENV-MEB-221.pdf.

Site Activity Summary

Site status:

The Havieron Underground Mine Project (Havieron Project) is a greenfield gold-copper deposit located approximately 45 km east of the Telfer, originally commenced in 2020 as a joint venture between Newcrest Operations Ltd and Greatland Pty Ltd.

 

In November 2023, Newmont purchased Newcrest Mining Ltd and in so doing acquired Newcrest Operations. Newmont holds a 70% interest in the Havieron JV arrangement with 30% held by Greatland. Greatland announced on 10 September 2024 that it had entered into a binding agreement with Newmont to acquire, subject to certain conditions being satisfied, Newmont’s 70% ownership interest in the Havieron gold-copper project, 100% ownership of the Telfer gold-copper mine, and other related assets in the Paterson region.

 

The sale to Greatland Resources Pty Ltd came into effect on 4 December 2024.

 

The development of the Havieron Project to date has involved exploration and early works (Stage 1) activities. Stage 1 commenced in December 2020 with more exploration work completed during the 2022 and 2023 reporting periods. In November 2023, whilst under Newmont control, development activities were paused whilst Newmont re-evaluated its captial expenditure prgramme. This pause continued has continued with Greatland, whilst the approvals under the Federal EPBC Act and Part IV of the WA EP Act are being sought.  

 

The Havieron Feasibility Study is progressing and remains on target for a December quarter 2025 release to market. The Havieron project includes 131 Mt in Resource (Figure 3) and the Reserve will be updated with the Feasibility Study to support a multi-decade operation. The Havieron LOM plan will be integrated with the Telfer LOM plan by 2H FY2026.

 

Exploration:

Exploration activities at the Havieron Project are managed in accordance with the Department of Energy, Industry Regulation and Safety (DEMIRS) Programme of Works (PoW) conditions and established Environmental Management Plans (EMPs) and procedures applicable to the Havieron Project. 

 

No new exploration activities have occurred during this reporting period.

  

Rehabilitation

A progressive rehabilitation strategy has been implemented for exploration activities, with rehabilation of 1.14 Ha of disturbance to close out PoW 97596 and 0.99 Ha of disturbance to close out PoW 98238.

 

No rehabilitation trials have progressed during the reporting period as landforms at the rehabilitation stage were not available. The next opportunity to undertake rehabilitation trials will require the completion of Stage 1 mining.

 

Progress towards Mine Closure

The stage 1 Mine Closure Plan has been approved for the Project. A revised Mining Proposal for Stage 1 (Rev 4) has also been approved and it includes closure plans for this stage. 

 

Summary of future works over the next 12 months

During the next reporting period (2025/2026), Greatland will begin ramping up the workforce in preparation for receipt of the primary approvals. The Havieron Stage 2 Mining Development and Closure Plan submission will be sent to DMPE for assessment and will include:

  • Infrastruture corridor linking Havieron to Telfer, where the ore will be processed;
  • Waste Rock Dump 2;
  • Second box cut and decline;
  • Paste plant; and
  • New camp. 

Items already approved under the Stage 1 Mining Proposal that are not yet complete will continue, including:

  • Construction and operation of additional Evaporation Ponds 4 – 6 and associated infrastructure. 
  • Recommencement of aquifer depressurisation and mine development to 420mRL (completion of works under Mining Proposal Stage 1 Reg ID 121684). Recommencement dependent upon completion and commissioning of Ponds 4 – 6.
  • Covering of existing box cut portal to control water inflow to the undergound workings from the surface. Waste rock from WRL will be used to cap the portal to surface level.

Attached Documents

There are no attachments to display

Step 3.2 Environmental Group Site - Site Summary Table
Guidance

Provide a concise overview of the operations and the progress of closure planning for the Environmental Group Site.

Site Status

Active

GOLD

2020

5

15
1
302.7700
1
244.6580


1 Value calculated from the information supplied in Step 3.4 Area of Activity.
Materials Balance
Total (m3 or tonnes) Comments
Volume of Material Mined: 22,417 m3 No material mined in this reporting period
Plant Throughput: 0 m3
Volume of Waste Rock: 93,688 m3 No material mined in this reporting period
Volume of Topsoil: 157,359 m3
Volume of Other Growth Medium2: 0 m3
Volume of Suitable Capping Material: 0 m3 Mining of suitable capping material has not occurred yet.


2 An alternative "growth medium" may be required where topsoil is either not naturally present in adequate volumes to address rehabilitation requirements, or was not preserved (e.g. stripped and stockpiled) prior to mining.
Bond

$0.00
Total bond amount calculated from tenements listed in Step 2. Review Tenements
Closure Plan

Operational

Yes


19/02/2024


Yes


18/03/2024


Step 3.3 Environmental Group Site - Site Plan
Guidance

A Site Plan must be attached that clearly and accurately reflects the information provided in this AER. The minimum requirements for the Site Plan are:

  • All operations and areas disturbed should be drawn on the plan with the scale and legend clearly shown
  • All tenements and their boundaries indicated
  • Include topographical, mine-site infrastructure details and cadastral information
  • Include areas rehabilitated to date with year completed and rehabilitation stage
  • Show areas disturbed during the reporting period
  • Show areas proposed for disturbance during the following reporting period

The Site plan will be publically available via the department's website. Please attach both a public and full version of the site plan if your main document contains confidential information.

Attached Site Plans
Authorised for Public Release File Name File Size Description
Yes Havieron Site Plan.pdf 3 MB Havieron site Plan
Step 3.4 Environmental Group Site - Area of Activity
Guidance

All mining related disturbance and rehabilitation activity present at the end of the AER reporting period needs to be reported.

Enter a summary of how the area data was verified (e.g. orthophotography, surveying), click the Save Form button, then review and update the activities, disturbance and rehabilitation data for each tenement.

Data Verification Method

In the 2024/2025 reporting period, the disturbance data was digitised from aerial imagery and reported as part of the Mining Rehabilitation Fund (MRF). The activity data was verified with 10 centimetres (cm) resolution RGB (red-green-blue) and NIR (Near-Infrared) imagery as well as 10 cm Digital Terrain Model (DTM), Digital Surface Model (DSM) (if required) and 0.5 m contours. Forming part of the continual improvement cycle, the disturbance data is reviewed on a regular basis to increase precision and accuracy. As part of the review process, there may be some instances of variation within the reported disturbance.

 

Area approved is from Haverion Stage 1 Mining Proposal Rev 4 Reg ID - 121684

 

Tenement Activity Summary
Tenement Assessment Date Area Approved (ha) Total Area of Activity (ha) Land Under Rehabilitation (ha) Relinquished (ha) Disturbance (ha)
Reporting Period Change Stage 1 Stage 2 Total Rehab
L 45/582 31/10/2024 29.0000 16.7690 0.3920 0.0000 0.0000 0.0000 0.0000 16.7690
L 45/636 31/10/2024 82.0000 42.9040 -0.6330 2.5160 0.0000 2.5160 0.0000 40.3880
M 45/1287 30/09/2025 191.7700 184.9850 173.0350 0.0000 0.0000 0.0000 0.0000 184.9850
Total 302.7700 244.6580 172.7940 2.5160 0.0000 2.5160 0.0000 242.1420

Detailed Assessment Information

Tenement: L 45/582 (4 Activities)
Mine Activity Type Mine Activity Reference Area Approved Total Area of Activity (ha) Land Under Rehabilitation (ha) Relinquished Open Disturbance (ha)
Area as of Previous reporting period Area as of Current reporting period Change Stage 1 Stage 2 Total
Transport or service infrastructure corridor Access Road 29.0000 15.4030 15.6250 0.2220 0.0000 0.0000 0.0000 0.0000 15.6250
Other Cleared Land - Land that is cleared of vegetation and is not otherwise described in this Table Roadside Cleared Land 0.0000 0.6720 0.6720 0.0000 0.0000 0.0000 0.0000 0.0000 0.6720
Exploration/Prospecting Operations - Land that has been disturbed by exploration operations Exploration Operations 0.0000 0.0420 0.2120 0.1700 0.0000 0.0000 0.0000 0.0000 0.2120
Topsoil stockpile Roadside Stockpile 0.0000 0.2600 0.2600 0.0000 0.0000 0.0000 0.0000 0.0000 0.2600
Total 29.0000 16.3770 16.7690 0.3920 0.0000 0.0000 0.0000 0.0000 16.7690
There is no assessment information to report on this tenement.
Tenement: L 45/636 (8 Activities)
Mine Activity Type Mine Activity Reference Area Approved Total Area of Activity (ha) Land Under Rehabilitation (ha) Relinquished Open Disturbance (ha)
Area as of Previous reporting period Area as of Current reporting period Change Stage 1 Stage 2 Total
Exploration/Prospecting Operations - Land that has been disturbed by exploration operations Exploration Operations 0.0000 0.8800 0.0900 -0.7900 0.0000 0.0000 0.0000 0.0000 0.0900
Other Cleared Land - Land that is cleared of vegetation and is not otherwise described in this Table Cleared Land along Haul road 0.0000 0.4030 0.4020 -0.0010 0.0000 0.0000 0.0000 0.0000 0.4020
Other Cleared Land - Land that is cleared of vegetation and is not otherwise described in this Table Roadside Cleared Land 0.0000 0.4020 0.4010 -0.0010 0.0000 0.0000 0.0000 0.0000 0.4010
Exploration/Prospecting Operations - Land that has been disturbed by exploration operations Pad 0.0000 0.1770 0.3620 0.1850 0.0000 0.0000 0.0000 0.0000 0.3620
Other Cleared Land - Land that is cleared of vegetation and is not otherwise described in this Table Other Cleared Land 82.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Topsoil stockpile Roadside Stockpile 0.0000 0.9390 0.9390 0.0000 0.0000 0.0000 0.0000 0.0000 0.9390
Borrow pit or shallow surface excavation (with a depth of less than 5 metres) Borrow Pit 0.0000 2.5180 2.5160 -0.0020 2.5160 0.0000 2.5160 0.0000 0.0000
Transport or service infrastructure corridor Access Road 0.0000 38.2180 38.1940 -0.0240 0.0000 0.0000 0.0000 0.0000 38.1940
Total 82.0000 43.5370 42.9040 -0.6330 2.5160 0.0000 2.5160 0.0000 40.3880
There is no assessment information to report on this tenement.
Tenement: M 45/1287 (17 Activities)
Mine Activity Type Mine Activity Reference Area Approved Total Area of Activity (ha) Land Under Rehabilitation (ha) Relinquished Open Disturbance (ha)
Area as of Previous reporting period Area as of Current reporting period Change Stage 1 Stage 2 Total
Borrow pit or shallow surface excavation (with a depth of less than 5 metres) Borrow Pit 0.0000 4.4030 4.3930 -0.0100 0.0000 0.0000 0.0000 0.0000 4.3930
Building (other than workshop) or camp site Camp, core shed, magazine etc 0.0000 0.0000 2.0640 2.0640 0.0000 0.0000 0.0000 0.0000 2.0640
Core yard Core Yard 0.0000 1.0610 1.0970 0.0360 0.0000 0.0000 0.0000 0.0000 1.0970
Dam - saline water or process liquor Raw water cells, turkeys nest, silt ponds (1-2) 18.0000 0.0000 1.0600 1.0600 0.0000 0.0000 0.0000 0.0000 1.0600
Diversion channel or drain WRD diversion channel 0.0000 0.0000 2.2990 2.2990 0.0000 0.0000 0.0000 0.0000 2.2990
Evaporation pond not associated with minerals-in-brine extraction Hypersaline ponds 1-3 28.0000 0.0000 23.0700 23.0700 0.0000 0.0000 0.0000 0.0000 23.0700
Evaporation pond not associated with minerals-in-brine extraction Hypersaline ponds 4-6 29.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Exploration/Prospecting Operations - Land that has been disturbed by exploration operations Exploration activities 0.0000 0.0000 44.2040 44.2040 0.0000 0.0000 0.0000 0.0000 44.2040
Laydown or hardstand area Laydown areas 0.0000 0.0000 20.8910 20.8910 0.0000 0.0000 0.0000 0.0000 20.8910
Mining void (with a depth of at least 5 metres) - below ground water level Boxcut 1.0000 0.0000 3.0910 3.0910 0.0000 0.0000 0.0000 0.0000 3.0910
Other Cleared Land - Land that is cleared of vegetation and is not otherwise described in this Table All clearing not described 0.0000 0.0000 40.6000 40.6000 0.0000 0.0000 0.0000 0.0000 40.6000
Plant site WWTP, plant site, generator 0.0000 0.0000 1.0280 1.0280 0.0000 0.0000 0.0000 0.0000 1.0280
Topsoil stockpile Topsoil Stockpile 0.0000 6.4860 9.0080 2.5220 0.0000 0.0000 0.0000 0.0000 9.0080
Transport or service infrastructure corridor Access roads, service corridor, pipeline 0.0000 0.0000 25.3820 25.3820 0.0000 0.0000 0.0000 0.0000 25.3820
Waste dump or overburden stockpile (class 1) WRD 1 6.0000 0.0000 4.6440 4.6440 0.0000 0.0000 0.0000 0.0000 4.6440
Other Cleared Land - Land that is cleared of vegetation and is not otherwise described in this Table Approval category 'Other mine Activity Area' 109.7700 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Sewage pond Spray field 0.0000 0.0000 2.1540 2.1540 0.0000 0.0000 0.0000 0.0000 2.1540
Total 191.7700 11.9500 184.9850 173.0350 0.0000 0.0000 0.0000 0.0000 184.9850
There is no assessment information to report on this tenement.
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