Pioneer Dome Lithium-Caesium-Tantalum Project

Pioneer has discovered pegmatite-hosted lithium mineralisation in rock chip samples at its 100%-held Pioneer Dome Project. The Project, near Norseman in Western Australia, is located 130 km south of Kalgoorlie. The Project is situated 200 km north of the Port of Esperance with access via the Goldfields Highway. Water and gas pipelines also pass through the Project. The Project covers an area of approximately 341 km² comprising six exploration licences plus a mining lease which has been pegged over the Sinclair Caesium Zone.

At least 13 clusters of pegmatites, including LCT pegmatites, have been identified along a 20 km strike length. Approximately 7000 soil samples have been used to identify 9 priority and 15 mid-rank targets. Mapping and additional sampling required to generate drill targets. The inaugural 5000m RC programme at the end of 2016, identified both high grade Lithium and Caesium. The Project demonstrates strong potential for the discovery of a significant spodumene deposit and will be a focus for future drilling – such a discovery would be a major value driver. The high grade Caesium prospect has been named Sinclair Zone, and the Company’s core focus is to advance the Sinclair Zone caesium towards mining.

Mineral Resource Estimate, Sinclair Caesium Zone - 22 March 2017

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Mavis Lake & Raleigh Lithium Projects

The Mavis and Raleigh Lithium Projects are situated 19 km and 80 km respectively east of Dryden, Ontario, Canada. The Projects are well located to relevant infrastructure. Pioneer earns an 80% interest in the Projects from International Lithium Corp (TSX.V: ILC).

Spodumene bearing pegmatites have been intersected. Current phase of drilling at Mavis Lake commenced in January 2018 and assay results are expected March/April 2018.

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Donelly Lithium Project

The Donelly Lithium Project is located in the world class Greenbushes Mineral Field in south-west Western Australia. It extends from 12 km to 60 km southwest of the world class Greenbushes Lithium Mine, and comprises two exploration licence applications (E70/4826 and E70/4829) covering a total area of 220 km². The Donnelly Project is considered prospective for lithium contained in spodumene-bearing pegmatites of the Lithium-Caesium-Tantalum (LCT) geochemical family.

Announcement

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Phillips River Lithium Project

The 100%-held Phillips River Lithium Project is located approximately 100 km east of the Mt Cattlin Lithium Mine, Ravensthorpe, in Western Australia. The project comprises three exploration licence applications that cover approximately 340 km² that are considered prospective for lithium spodumene-bearing pegmatites. Initial work will be to undertake detailed soil geochemistry in the areas of very anomalous lithium results returned from roadside sampling completed by a previous tenement holder.

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Bogardi Lithium Clay Project

Pioneer 90%, Milford Holdings Pty Ltd 10%. Located 100 km southeast of Gascoyne Junction, the Bogadi project covers a very large, 25 km by 8 km, lithium-rubidium-niobium-tantalum-phosphorus geochemical anomaly. The anomaly may represent an ‘unconventional’ sedimentary lithium deposit. The Company has been awarded co-funding of up to $126,000 under the WA state government’s Exploration Incentive Scheme (EIS) for funds to drill this prospect.

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