Following the company’s pre-feasibility study, the metallurgical test work has been focused on ore fines (grains of around 0-10 millimetres in size).
The test work on ore fines delivered positive results from both fine DMS (dense media separation) and flotation tests, highlighting the potential to increase the proposed lithium production during 2018.
The three-stage sighter flotation test work returned a recovery to concentrate of 83% at a concentrate grade of 4.7% lithium.
The average production rate in Tawana’s pre-feasibility study was circa 150,000 tonnes per annum of spodumene concentrate.
Interestingly, based on a 70% recovery, the Phase 2 DMS has the potential to increase spodumene production by 25% with a combined Phase 1 and Phase 2 DMS recovery of about 82.5%.
Bald Hill remains on track to commence commissioning in the first quarter of 2018.
Tawana’s share price increased circa 27% in the past six months, closing at $0.215 on Wednesday.