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North Mining Ltd

Holds ground today

North Mining Ltd holds 195 Western Australian tenements covering 285,933 ha. It is a subsidiary of Rio Tinto (ASX:RIO). It has lodged 54 open-file WAMEX reports between 1994 and 2015, mostly for gold, mineral sands and copper.

Reports lodged
54
Tenements held
195
285,933 ha
Holding since
1994
Active
22yrs
1994 to 2015
Areas worked
12
most in City of Kalgoorlie-Boulder
Owner
Rio Tinto
ASX:RIO
Last reported
2015
11 years ago
Explore on the live map
Where North Mining Ltd has reported
+7 more local government areas

Who owns North Mining?

North Mining is a subsidiary of Rio Tinto (ASX:RIO). The group is named as a holder on 522 live Western Australian tenements.

The other companies Rio Tinto holds ground through, with the live tenements each is named on:

Hamersley Iron Pty. Limited 181Robe River Mining Co. Pty. Ltd. 174Rio Tinto Winu Pty Limited 33Hamersley Resources Limited 28Rio Tinto Exploration Pty Limited 27Hamersley Exploration Pty Limited 23Galaxy Lithium Australia Pty Ltd 15Hamersley WA Pty Ltd 15Galaxy Resources Pty Ltd 10Hamersley Iron-Yandi Pty Limited 9Mount Bruce Mining Pty Limited 6Argyle Diamonds Pty Limited 5Allkem Financial Services Pty Ltd 1Kerrigup Resources Pty Limited Rio Tinto Limited

From Rio Tinto's consolidated entity disclosure statement, as at 2025-12-31.

Who holds paper over Rio Tinto's ground?

North Mining is part of the Rio Tinto group, so these are the group's connections.

55 of Rio Tinto's live titles carry a caveat or mortgage held by another party. Rio Tinto holds caveats or mortgages over 43 live titles of other companies. It holds 251 live titles together with another holder.

Caveats and mortgages over its ground

SMM Perth Pty Ltd 26Winu Services Pty Ltd 26Rhodes Ridge Management Services Pty Ltd 14SPC Blue Pty Ltd 14Rhodes Ridge Mining (No 1) Pty Ltd 14Greatland Resources 7

and 8 more

It holds caveats and mortgages over

SMM Perth Pty Ltd 26SPC Blue Pty Ltd 14Rhodes Ridge Mining (No 1) Pty Ltd 14FMR Investments Pty Ltd 1High-Tech Metals Ltd 1Cannon Resources Pty Ltd 1

Holds ground with

Mitsui Iron Ore Development Pty Ltd 171Cape Lambert Iron Associates 171Pannawonica Iron Associates 171SMM Perth Pty Ltd 27Rhodes Ridge Mining (No 1) Pty Ltd 23SPC Blue Pty Ltd 23

and 4 more

See Rio Tinto's whole web

From caveats, mortgages and joint holdings on the DMPE tenement register. A caveat protects an interest in a title, such as a royalty, an option or a loan; the register does not say which.

What North Mining holds today

North Mining holds 195 tenements across 285,933 ha. The register records 5 titles transferred in, the latest in November 2025.

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Due diligence workbook for 195 titles
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Exploration record

Commodities targeted
Gold 41 · Mineral Sands 9 · Copper 5 · Base Metals 5 · Zinc 3 · Nickel 2 · Lead 2 · Platinum 1
Where they worked
City of Kalgoorlie-Boulder 19, Shire of Meekatharra 6, Shire of Leonora 4, Shire of Irwin 4, Shire of Wiluna 3, Shire of Gingin 3, Shire of Laverton 2, Shire of Coolgardie 2, Shire of East Pilbara 2, Shire of Kulin 1
Work on record
RC drilling 24 · Rotary drilling 22 · Geological mapping 15 · Soil sampling 15 · Aerial magnetic surveys 12 · Diamond drilling 8 · Heavy minerals 7 · Geophysical interpretation 5
Resource declared
Yes, in 1 report: A48297 (1996)
Downloadable data
5 of 54 reports include a digital package
Report types
Annual 33 · Final Surrender 15 · Partial Surrender 6
Reports by decade
521990s
2000s
12010s

Reports filed

54 WAMEX exploration reports lodged by North Mining Ltd.
Most recent reports
ReportYearProjectTitle
A107333 2015 EAST KALGOORLIE EAST KALGOORLIE PROJECT Kanowna Lights Prospect Annual Exploration Report for year ending 31st August 2015 Co
A55977 1998 Jilakin Final Mineral Exploration Report for Work Carried out by North Limited on E70/1705 (Jilakin) for the Period 27
A55915 1998 Tobago Report No. WA99/07S Relinquishment Report for Exploration Licence 38/860 Tobago Kinston District WA
A55914 1998 Georgetown Relinquishment Report for Exploration Licence 38/863 Georgetown Kingston District.
A55913 1998 Trinidad Final Surrender Report for Exploration Licence 38/861 Trinidad Kingston District, 02/05/1996 to 11/05/1998.
A55912 1998 Cayman Partial Surrender Mineral Exploration Report by North Ltd for Exploration Licence 38/862 Cayman Kingston Distr
A55911 1998 Wiluna Final Mineral Exploration Report for Exploration Licence 53/675 for the Period 27 March 19998 to 31st August 1
A48297 1996 Kalpini North Limited Report No. WA97/02S Annual Mineral Exploration Report for Mayday North, Kalpini Project M27/140
A44686 1995 Mount McCleay Mt McCleay Project, Final Report on Exploration undertaken during the period March 1994 to March 1995.
A43542 1995 Mount Hogan - St Alvano Annual Report on Exploration Within E15/323 Mt Hogan (Kalgoorlie District) Period Ending November 1994. Report
A43355 1995 Mount Hogan Annual Report on exploration licences E26/40 year ending November 1994; E15/251 year ending September 1994, Mt
A43248 1994 Lake Yindarlgooda- Gundockerta Annulal Report for E25/78 Gundockerta, Lake Yindarlgooda WA, Third Year ending 13 October 1994.
A42954 1994 Redbank Redbank Project, Annual Report for the year ending 13th October 1994, E80/1404 (Redbank), E80/1579 (Hargreaves
A42953 1994 Gundockerta North Gundockerta North Project, (Taurus & Slate), Annual Report for the period 27/10/1993 to 01/09/1994, M25/114 &
A42952 1994 Gundockerta North Annual report for the period 27/10/93-27/10/94 Gundockerta North Project M25/116
A42850 1994 Binduli Annual Report , Binduli (JV) Project, P26/2461-2463,2484-2486, for the period 30/9/93 to 30/9/94.
A42758 1994 Dodger Dodger Project, Annual Report for the year ending 26th October 1994, E37/243.
A42757 1994 Trigg Bore Trigg Bore Project, Annual Report for the year ending 12th October 1994, P37/4326- 4834.
A42756 1994 Mertondale Annual Report for the period 14/10/93-13/10/94 Mertondale Project P37/4449-4451
A42357 1994 Woodlands Woodlands Project, Annual Report for the period 05/10/1993 to 04/10/1994, E52/386.
Report numbers filed by North Mining Ltd
A107333 2015, A55977 1998, A55915 1998, A55914 1998, A55913 1998, A55912 1998, A55911 1998, A48297 1996, A44686 1995, A43542 1995, A43355 1995, A43248 1994, A42954 1994, A42953 1994, A42952 1994, A42850 1994, A42758 1994, A42757 1994, A42756 1994, A42357 1994, A42356 1994, A42264 1994, A42169 1994, A42154 1994, A42153 1994, A42008 1994, A41796 1994, A41744 1994, A41649 1994, A41624 1994, A41555 1994, A41554 1994, A41553 1994, A41552 1994, A41551 1994, A41550 1994, A41548 1994, A41547 1994, A41444 1994, A41443 1994, A41442 1994, A41384 1994, A41383 1994, A41382 1994, A41255 1994, A41254 1994, A41154 1994, A41153 1994, A41152 1994, A41151 1994

Named projects

Watching what North Mining Ltd does next?

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Tenure data sourced from the DMPE public registers and SLIP WA (© Government of Western Australia, CC BY 4.0). Compiled by NextMaps. Verify against primary sources before reliance.