MCF Mining Approvals IndexData as at 18 October 2026 · from Western Australian Government registers and open data
Western Australian mining lease
M 70/114 · Worsley
M 70/114 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 16 January 1989, expires 2 February 2031. 814 ha in the South West Mineral Field. Commodities: Bauxite. Part of the Worsley 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 project
- Worsley J00776 · OperatingOwners: 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
- 20 November 1983
- Granted
- 16 January 1989
- Expires
- 2 February 2031
- Area
- 814.50 hectares (8.1 km²)
- Mineral field
- South West Mineral Field
- Commodities
- Bauxite
- 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
- MCP_Worsley Alunina -Boddington Bauxite Mine - M70/114_PUBLIC VERSION_Part1 & Part2: approved 24 April 2018, Mining Proposal with MCP_Worsley Alunina -Boddington Bauxite Mine - M70/114_PUBLIC VERSION
- Environmental registrations
- 3 mining proposal and closure plan registrations (MINEDEX)
- EPA Ministerial Statements
- MS 1237
- EPA referred proposals
- Bauxite mining on the Darling Range in the southwest of WA for the years 2023 to 2027 Under assessment; overlaps 0.6 ha
Worsley Mine Expansion - Revised Proposal Approved (Ministerial Statement), MS 1237; overlaps 814 ha
Forest Management Plan 2014-2023 Approved (Ministerial Statement), MS 952; overlaps 814 ha
Forest Management Plan 2024-2033 Approved (Ministerial Statement), MS 1214; overlaps 814 ha - WAMEX data
- 2,712 open-file drill holes, 104 exploration reports on this ground
- Location
- -32.886, 116.4149 (centre)
Mining proposals and mine closure plans
| Date | Registration | Title | Status | Document (GeoDocs) |
|---|---|---|---|---|
| 22 January 2025 | Mining Proposal | Boddington Bauxite Mine - Karafils Mining Proposal Revision 1 | Approved | MP_128525.pdf |
| 24 April 2018 | Mining Proposal With Mine Closure Plan | Mining Proposal with MCP_Worsley Alunina -Boddington Bauxite Mine - M70/114_PUBLIC VERSION_Part1 & Part2 | Approved | mp_73205.pdf |
| 29 July 1998 | Mining Proposal | WORSLEY BAUXITE:KARAFIL PROJECT; BODDINGTON | Approved | mp_2768.pdf |
Registrations from MINEDEX (DMPE); the documents are the operators' own, linked on GeoDocs and not copied.