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

Western Australian mining project · Operating

Kanowna - Golden Valley

Kanowna - Golden Valley is a Western Australian mining project (operating) in MINEDEX, owned by Northern Star Resources Ltd 100%; Perilya Ltd; Cove Mining NL; Northern Star (Kanowna) Pty Limited, on 39 current tenements held by KANOWNA MINES PTY LIMITED; NORTHERN STAR (KANOWNA) PTY LIMITED; NORTHERN STAR (KLV) PTY LTD; NORTHERN STAR (SARACEN KALGOORLIE) PTY LTD and others. Commodities: Gold, Silver, Molybdenum.

MINEDEX project: J00181
Stage: Operating
Owners (MINEDEX): Northern Star Resources Ltd 100%; Perilya Ltd; Cove Mining NL; Northern Star (Kanowna) Pty Limited
Tenement holders: KANOWNA MINES PTY LIMITED
NORTHERN STAR (KANOWNA) PTY LIMITED
NORTHERN STAR (KLV) PTY LTD
NORTHERN STAR (SARACEN KALGOORLIE) PTY LTD
NORTHERN STAR RESOURCES LTD
ZEBINA MINERALS PTY LTD
Parent groups: Northern Star Resources
Commodities: Gold, Silver, Molybdenum
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

Resources and reserves

Commodity	Resources	Reserves	Latest estimate
Gold	109 Mt at 1.68 g/t, 5.91 Moz contained	27 Mt at 1.45 g/t, 1.26 Moz contained	31 March 2026

Current MINEDEX estimates over all the project's sites; resources may include reserves. MINEDEX (DMPE), CC BY 4.0.

Production recorded in MINEDEX

Commodity	Latest year	That year	All recorded
Gold	2000	32 koz	278 koz

Historical: the bulk extract's production records end in 2002.

Mine closure plans

Site	Operator	Latest plan approved	Plan (PDF on GeoDocs)	Closure year
KCGM Golden Mile / Fimiston / Kaltails - Golden Mile/KCGM and Kaltails	NORTHERN STAR (KLV) Pty Ltd, SARACEN MINERAL HOLDINGS Limited	19 September 2025	MINE CLOSURE PLAN - KCGM Golden Mile / Fimiston / Kaltails MCP 2022 Version 2 - J00102 Gol	2021
Kanowna Operations ( - Part A)	Northern Star Resources Limited	31 July 2023	Kanowna Operations Mine Closure Plan (Version 3 - Part A)

EPA Ministerial Statements

MS 1258 Fimiston Gold Mine Operations Extension (Stage 3) and Mine Closure Planning: Revised Proposal - Fimiston South Project, MS 782 Fimiston Gold Mine Operations Extension (Stage 3) and Mine Closure Planning, MS 505 Mining of gold ore from Reward and Northern orebodies adjacent to Mt Charlotte, Kalgoorlie, MS 77 Phase II Expansion of Gidji Gold Roaster

Tenements

Tenement	Holder	Status	Expires	Commodities	Hectares
M 24/462 Mining lease	NORTHERN STAR (KLV) PTY LTD; NORTHERN STAR (SARACEN KALGOORLIE) PTY LTD	Granted	23 November 2045	Gold, Silver	265
M 24/640 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	20 January 2030	Gold, Silver	794
M 27/18 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	10 July 2027	Gold, Silver	59
M 27/22 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	25 August 2027	Gold, Silver	10
M 27/23 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	25 August 2027	Gold, Silver	14
M 27/37 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	15 March 2029	Gold, Silver	583
M 27/53 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	9 April 2029	Gold, Silver	482
M 27/57 Mining lease	KANOWNA MINES PTY LIMITED	Granted	6 August 2029	Gold, Silver	6
M 27/63 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	1 May 2030	Gold, Silver	60
M 27/92 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	13 March 2030	Gold, Silver	969
M 27/103 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	11 January 2031	Gold, Silver	940
M 27/122 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	27 March 2032	Gold, Silver	8
M 27/123 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	9 October 2031	Gold, Silver	991
M 27/127 Mining lease	KANOWNA MINES PTY LIMITED	Granted	23 April 2031	Gold, Silver	742
M 27/128 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	23 April 2031	Gold, Silver	13
M 27/159 Mining lease	KANOWNA MINES PTY LIMITED	Granted	30 January 2034	Gold, Silver	1
M 27/164 Mining lease	KANOWNA MINES PTY LIMITED	Granted	20 June 2035	Gold, Silver	838
M 27/175 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	16 November 2035	Gold, Silver	69
M 27/191 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	6 December 2036	Gold, Silver	725
M 27/198 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	28 December 2036	Gold, Silver	180
M 27/202 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	5 December 2036	Gold, Silver	770
M 27/232 Mining lease	KANOWNA MINES PTY LIMITED	Granted	12 October 2030	Gold, Silver	1
M 27/287 Mining lease	KANOWNA MINES PTY LIMITED	Granted	10 April 2045	Gold, Silver	1
M 27/493 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	24 January 2038	Gold, Silver, Molybdenum	684
M 27/494 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	9 January 2038	Gold, Silver	496
M 27/495 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	10 January 2038	Gold, Silver	124
M 27/496 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	20 July 2038	Gold, Molybdenum	11
M 27/497 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED; ZEBINA MINERALS PTY LTD	Granted	19 September 2040	Gold, Silver	598
M 27/498 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Application		Gold, Silver	214
M 27/499 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	19 September 2040	Gold, Silver	36
M 27/519 Mining lease	NORTHERN STAR RESOURCES LTD	Granted	19 January 2046	Gold	366
M 27/521 Mining lease	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	19 January 2046	Gold	254
L 26/198 Miscellaneous licence	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	25 February 2031	Gold, Silver	15
L 27/49 Miscellaneous licence	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	13 September 2030	Gold, Silver	9
L 27/50 Miscellaneous licence	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	5 November 2027	Gold, Silver	46
L 27/51 Miscellaneous licence	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	5 November 2027	Gold, Silver	14
L 27/62 Miscellaneous licence	KANOWNA MINES PTY LIMITED	Granted	19 October 2028	Gold, Silver	70
L 27/83 Miscellaneous licence	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	28 May 2035	Gold, Silver	57
L 27/87 Miscellaneous licence	NORTHERN STAR (KANOWNA) PTY LIMITED	Granted	19 February 2034	Gold, Silver	4