The deposit comprises a number of pegmatites hosted in meta-basalts of the Arcturus Formation within the Harare Greenstone Belt.

The pegmatites belong to the Petalite subclass of the Rare-Element pegmatite deposit class and belong to the LCT pegmatite family.

The pegmatites are poorly to moderately zoned (but not symmetrically or asymmetrically zoned and have no quartz core). The main lithium bearing minerals are dominantly petalite and spodumene, with sub-ordinate eucryptite, bikitaite, and minor lepidolite. In addition, disseminated tantalite is present. Gangue minerals are quartz, alkali feldspars and muscovite.

The pegmatites strike 045° and dip at 10° to the northwest.

The Arcadia Lithium deposit is hosted within a series of stacked, sub parallel petalitespodumene bearing pegmatites that intrude the local Archaean age Harare Greenstone Belt. Dimensions of the pegmatites defined by drilling to date are 3.5 km along strike (SW-NE), with an average thickness of 15 m and dipping 15 degrees to the NW. The Main Pegmatite is exposed in the historical pit, and the deposit is open along strike to the southwest, where drilling is ongoing. The deposit is cut by the NNE-SSW trending Mashonganyika Fault zone, as well as a regional SW-NE trending dolerite dyke that appears to truncate the pegmatite to the NW. Continuation of the Lower Main Pegmatite has been identified and tested to the north east of the Mashonganyika Fault Zone .

Conventional open pit mining is proposed for the delivery of 100 000 t/month or 1.2 Mtpa of RoM material to the communition and processing facilities. In order to develop the pit design for the Arcadia deposit, an optimised pit shell was first prepared using Dassault System Surpac© software. The mining method is based on six nested sequential open pits (1a, 1b, 2, 3, 4 and 5). The final pit, (5) will measure some 1.1 km by 750 m, with a maximum depth of 130 m on the final high- wall. The total surface area of the final pit 5 will be approximately 0.55 km2.

Mining is anticipated to commence from the location of the historical open pit where the Main Pegmatite is exposed. Pit slope parameters were designed based on recommendations made by Geotechnical Consultants (Practara) with overall slope angles planned to be 54º - 56º, with a batter angle of 80º. 10 m high benches are planned, with an operating berm width of 15 m, and a final width of 5 m.

The pit design has also taken cognisance of the local resource geometry to maximise the location of the ramp with respect to pit entry location, pit base access and utilisation of the pit floor for access to the final benches. Waste dumps have been located as close as possible to the pit exit points to minimise haulage profiles without disrupting the access to the orebodies or crushing plant.

Mining operations will be conducted utilising a contracted fleet for key equipment with some ancillary vehicles being supplied by the Company. Ore and waste will be handled by diesel hydraulic excavators and articulated dump trucks. Ore will be trucked to the crushing station where it will be directly dumped to the primary crusher, or stockpiled prior to front-end loader feeding. Waste material comprising meta basalt and some pegmatites will require blasting except for some of the very upper weathered rocks.

The mining dilution was estimated at 5 %, and the total ore losses have also been estimated at 5 %. This is to take into account the fact that some waste material will be added into the ore stream going to the processing plant and that some of the ore material will be directed to the waste dump. The grade of the dilution material, added to the ore stream is taken to have an average value of 0 % Li2O. This conservative approach does not make any allowance for Li2O values which are likely to be contained in the dilutant material. This scenario maximises the recovery of ore during mining, hence the mining recovery of the open pit minable resource is considered to be 95 %.

The metallurgical test work undertaken to date includes X Ray Diffraction (“XRD”), Heavy Liquid Separation (“HLS”) test work, Dense Medium Separation (“DMS”) pilot plant test work, spiral concentration and flotation test work.

Based on the results of these studies, the Company has designed a concentrator plant to process 1.2 Mtpa of ore feed using conventional DMS and froth flotation technology. The processing plant comprises key areas including, three-stage crushing, grinding, dense media separation, mica-flotation, spodumene flotation, petalite flotation, magnetic separation, concentrate dewatering and drying, and tailings filtering.

The plant will produce a >6 % Li2O and >4.1 % Li2O concentrates suitable for lithium hydroxide and carbonate plants that supply feed-stock to the lithium battery manufacturers and the glass/ceramics markets. Tantalite concentrate (>25 % Ta2O5) will also be produced to serve the downstream electronics markets.