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

Western Australian mining project · Operating

Winning Pool Diatomite

Winning Pool Diatomite is a Western Australian mining project (operating) in MINEDEX, owned by Silica Earth Resources Pty Ltd 100%, on 2 current tenements held by SILICA EARTH RESOURCES PTY LTD.

MINEDEX project: J04320
Stage: Operating
Owners (MINEDEX): Silica Earth Resources Pty Ltd 100%
Tenement holders: SILICA EARTH RESOURCES PTY LTD
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 plans

Site	Operator	Latest plan approved	Plan (PDF on GeoDocs)	Closure year
FOR SMALL OPERATORS - WINNING POOL	Lyndon Mining Pty Limited	20 December 2016	MINE CLOSURE PLAN FOR SMALL OPERATORS - WINNING POOL REVISION 1 - J04320

Tenements

Tenement	Holder	Status	Expires	Commodities	Hectares
M 08/135 Mining lease	SILICA EARTH RESOURCES PTY LTD	Granted	1 September 2035		18
G 08/9 General purpose lease	SILICA EARTH RESOURCES PTY LTD	Granted	19 September 2035		5