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

Western Australian mining lease

M 04/416 · Koolan Island

M 04/416 is a Western Australian mining lease held by KOOLAN IRON ORE PTY LTD (MGX Resources group). Granted 20 April 2006, expires 20 April 2027. 833 ha in the West Kimberley Mineral Field. Commodities: Iron. Part of the Koolan Island project (operating).

Type: Mining lease
Status: Granted
Holder: KOOLAN IRON ORE PTY LTD
Parent group: MGX Resources (a subsidiary)
MINEDEX project: Koolan Island J00728 · Operating
Owners: Mount Gibson Iron Limited 100%
Lodged: 25 August 2004
Granted: 20 April 2006
Expires: 20 April 2027
Area: 832.60 hectares (8.3 km²)
Mineral field: West Kimberley Mineral Field
Commodities: Iron
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: Koolan Island Iron Ore Mine and Port Facility - Doc ID: MGI-KIO: approved 18 April 2017, Koolan Island Iron Ore Mine and Port Facility - Mine Closure Plan - Doc ID: MGI-KIO-MCP -
Environmental registrations: 14 mining proposal and closure plan registrations (MINEDEX)
EPA Ministerial Statements: MS 715
EPA referred proposals: Koolan Island Iron Ore Mine and Port Facility Approved (Ministerial Statement), MS 715; overlaps 468 ha
WAMEX data: 1,159 open-file drill holes, 24 exploration reports on this ground
Location: -16.128, 123.74795 (centre)

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Mining proposals and mine closure plans

Date	Registration	Title	Status	Document (GeoDocs)
18 July 2025	Mining Proposal	Mining Proposal Mangrove Pit and WD1/WD5 Rehabilitation Rev 0 Version 3	Approved	MP_500195.pdf
24 May 2024	Mining Proposal	Mining Proposal for Small Mining Operations: Koolan Island Operations WWTP Irrigation Field - M 04/416 Version 1 Revision 1	Approved	MP_122805.pdf
15 May 2020	Mining Proposal	OPTIMISATION OF MULLET PIT AND EAST PIT BACKFILLS & BARRAMUNDI PIT BACKFILL	Approved	MP_83724.pdf
15 August 2019	Mining Proposal	Koolan Island Iron Ore Mine and Port Facility (Project Code: J00728) - Airfield Construction and Operation - Koolan Iron Ore Pty Ltd	Approved	MP_79171.pdf
20 April 2017	Mining Proposal	Addendum to Koolan Island Iron Ore Mining Proposal Reg ID 5601 - SEAWALL CONSTRUCTION AND MINE PIT DEWATERING ON M04/416, M04/417 & L04/29	Approved	mp_60751.pdf
18 April 2017	Mine Closure Plan	Koolan Island Iron Ore Mine and Port Facility - Mine Closure Plan - Doc ID: MGI-KIO-MCP - Version 4	Approved	mcp_56401.pdf
29 January 2015	Mining Proposal	Optimisation of Waste Rock Placement - Koolan Iron Ore Mine and Port Facility	Approved	mp_53093.pdf mp_53093.zip
14 May 2014	Mining Proposal	Application for Construction of a Bioremediation Facility and Emergency Response Training Area	Approved	mp_47723.pdf
22 August 2012	Mining Proposal	Acacia East Pit Cutback	Approved	mp_34572.pdf
11 October 2011	Mining Proposal	Mining Proposal for Dewatering Mullet Pit, Dewatering Below -40mRL at Main Pit, Mining of Main and Mullet Pits below Water Table, Construction of Saline Waste Dumps, on Koolan Island, Western Australia on Tenements M04/416, M04/417 and L04/29	Approved	mp_31828.pdf
19 September 2011	Mining Proposal	Mining Proposal Additional Infrastructure and clearing Koolan Island, Western Australia Tenements M04/416, M04/417 and L04/29	Approved	mp_31899.pdf
21 April 2010	Mining Proposal	Scree Stripping Letter of Intent, Koolan Island	Approved	mp_23857_res.zip mp_23857.pdf
11 August 2006	Mining Proposal	KOOLAN ISLAND IRON ORE MINE PROJECT INFRASTRUCTURE	Approved	mp_5312.pdf
22 June 2006	Mining Proposal	KOOLAN ISLAND IRON ORE LAND PREP AND ACCOM CAMP M04/416 417	Approved	mp_5278.pdf

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