Overview

Mine Type	Tailings
Stage	Permitting
Commodities	Gold Silver
Mining Method	Hydraulic mining Truck & Shovel / Loader
Mine Life	...
Snapshot	A Definitive Feasibility Study on retreating the gold tailings at Windarra and Lancefield was completed in July 2021. On September 7, 2022, Poseidon Nickel entered into a binding head-of agreement with Green Gold Projects for the processing of the Windarra gold tailings project in Western Australia. A final agreement is subject to Green Gold being satisfied with the outcome of metallurgical testwork and a bankable feasibility study being completed at its expense. Upon achieving these milestones, Green Gold will earn a farm-in interest in the project, and be responsible for its funding, development and operation.

Deposit type

• Tailings

Summary:

Between 1981 and 1994, approximately 5.1 Mt of gold ore was treated at an average head grade of 5.1 g/t gold producing over 700,000 ounces of gold at a recovery of 84.2%. The gold tailings were isolated from the nickel tailings and deposited initially in the South dam and then the North dam from 1988. The North dam contains approximately 80% of the gold tailings tonnage. A minor proportion of gold tailings was deposited on top of the Central dam to assist with capping the nickel tailings prior to rehabilitation of the Central dam.

Poseidon is considering development of the Windarra Gold Tailings Project, which comprises the Windarra Gold Tailings Mineral Resource contained within the North and South tailings dams (Windarra) and the Lancefield Gold Tailings Mineral Resource contained on License To Treat (LTT) tenement 700-3709 (Lancefield). The Mineral Resource comprises 4.75 Mt at the Windarra North and South dams at an average grade of 0.73 g/t gold and 1.21 Mt at Lancefield at an average grade of 1.27 g/t gold, all classified as Indicated resources. There is a total of approximately 161,000 ounces of gold contained within the Project Mineral Resource at Indicated classification. The Project also has access to an additional 0.38 Mt at an average grade of 1.20 g/t gold at Lancefield currently classified as an Inferred resource. With additional resource definition drilling it is considered likely this material would be reclassified to an Indicated resource also.

Mining Methods

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Comminution

Crushers and Mills

Processing

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Production

Operational metrics

Metrics
Annual processing capacity	....

Personnel

Job Title	Name	Profile	Ref. Date
.......................	.......................		Sep 24, 2023