Data as at 18 October 2026 · from Western Australian Government registers and open data

Western Australian mining lease

M 70/23 · Boddington Gold

M 70/23 is a Western Australian mining lease held by JAPAN ALUMINA ASSOCIATES (AUSTRALIA) PTY LTD; SOJITZ ALUMINA PTY LTD; SOUTH32 ALUMINIUM (RAA) PTY LTD; SOUTH32 ALUMINIUM (WORSLEY) PTY LTD (South32 group). Granted 27 March 1986, expires 8 April 2028. 963 ha in the South West Mineral Field. Commodities: Gold, Copper, Bauxite, Silver, Arsenic, Bismuth. Part of the Boddington Gold project (operating).

Type: Mining lease
Status: Granted
Holders: JAPAN ALUMINA ASSOCIATES (AUSTRALIA) PTY LTD
SOJITZ ALUMINA PTY LTD
SOUTH32 ALUMINIUM (RAA) PTY LTD
SOUTH32 ALUMINIUM (WORSLEY) PTY LTD
Parent group: South32 (a joint venture)
MINEDEX projects: Boddington Gold J00026 · Operating
Owners: Newmont Corporation 100%; Newmont Australia Pty Ltd; Saddleback Investments Pty Ltd

Worsley J00776 · Operating
Owners: South32 Limited 86%; Japan Alumina Associates (Australia) Pty Ltd 10%; Sojitz Alumina Pty Ltd 4%; Alcoa of Australia Ltd; South32 Aluminium (RAA) Pty Ltd; South32 Aluminium (Worsley) Pty Ltd; Alcoa Corporation
Lodged: 7 April 1983
Granted: 27 March 1986
Expires: 8 April 2028
Area: 963.30 hectares (9.6 km²)
Mineral field: South West Mineral Field
Commodities: Gold, Copper, Bauxite, Silver, Arsenic, Bismuth
Rehabilitation liability: Its rehabilitation liability is in the MCF Mining Index (subscribers): the Mining Rehabilitation Fund estimate, its trend since 2014, company provisions and closure-plan costs
Mine closure plan: Newmont Boddington Gold - Life of Mine Extension - (BGM11099_01: approved 20 February 2015, Newmont Boddington Gold - Life of Mine Extension - Mining Proposal (BGM11099_01
Environmental registrations: 10 mining proposal and closure plan registrations (MINEDEX)
EPA Ministerial Statements: MS 1237, MS 971, MS 453, MS 379, MS 299, MS 100, MS 85, MS 49, MS 19
EPA referred proposals: Newmont Boddington Life of Mine Extension Amendment Proposal Under assessment; overlaps 933 ha
Newmont Boddington Goldmine - Life of Mine Expansion Approved (Ministerial Statement), MS 971; overlaps 933 ha
Worsley Mine Expansion - Revised Proposal Approved (Ministerial Statement), MS 1237; overlaps 930 ha
Forest Management Plan 2014-2023 Approved (Ministerial Statement), MS 952; overlaps 963 ha
Forest Management Plan 2024-2033 Approved (Ministerial Statement), MS 1214; overlaps 963 ha
WAMEX data: 1,059 open-file drill holes, 53 exploration reports on this ground
Location: -32.73355, 116.39015 (centre)

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Mining proposals and mine closure plans

Date	Registration	Title	Status	Document (GeoDocs)
27 June 2025	Mining Proposal	Boddington Gold F1/F3 RDA REVISED 750MT BUTTRESS DESIGN MINING PROPOSAL REV 2	Approved	MP_121521.pdf
1 May 2025	Mining Proposal	Worsley_HN Mining Proposal_v3	Approved	MP_500210.pdf
24 May 2024	Mining Proposal	Boddington Bauxite Mine - Hotham North Mining Proposal - South32 Worsley	Approved	MP_120346.pdf
24 December 2021	Mine Closure Plan	MINE CLOSURE PLAN - NEWMONT BODDINGTON GOLD PROJECT - J00026	Approved	no public document
20 February 2015	Mining Proposal With Mine Closure Plan	Newmont Boddington Gold - Life of Mine Extension - Mining Proposal (BGM11099_01	Approved	MP_48325.pdf
19 February 2015	Mining Proposal	Groundwater Production Bores & 34 Mile Brook Causeway Construction	Approved	mp_53894.pdf
29 August 2012	Mining Proposal	Revised Wandoo North and South Pit Modifications and Additional Waste Rock Storage: Mining Proposal Addendum: ML264SA(2), M70/22, M70/23, M70/24, M70/25, M70/1031, G70/218 - Version 2 - July 2012	Approved	mp_33764.pdf
29 June 2006	Mining Proposal	BODDINGTON EXPANSION GATEHOUSE	Approved	mp_5383.zip mp_5383.pdf mp_18750_res.pdf
18 September 2000	Mining Proposal	BODDINGTON : HEDGES GOLD : PIT M6	Approved	mp_16883.pdf
11 September 1998	Mining Proposal	BODDINGTON : HYDRAULIC MINING TRIAL RESIDUE RETURN WATER	Approved	mp_16292.pdf

Registrations from MINEDEX (DMPE); the documents are the operators' own, linked on GeoDocs and not copied.