H&P - further..7 Sep 2021 13:48
Promising initial results on lithium separation using density methods
Preliminary results from ongoing Dense Media and Heavy Liquid Separation
(DMS & HLS) testing in S Africa show a four to five times uplift in the lithium
grade could be achieved. DMS and HLS exploit the relative density of lithiumbearing petalite in comparison to other minerals in the ore, The current (inferred)
resource grade at Uis is 0.63% Li2O, which suggests these density separation
methods could boost the grade to ~2.5-3.1% Li2O; it is expected that flotation and
magnetic separation methods will also be employed to further upgrade the
petalite to a standard 4% Li2O concentrate, with a low iron content of <0.05%
Fe2O3. For Phase 1, we currently model a conservative 28% Li2O recovery rate,
generating ~46ktpa of petalite concentrate for average annual lithium revenue of
US$16m. However, we see scope for this to be considerably ramped up in Phase 2
to a 62% recovery rate, with lithium comprising 44% of mine-gate revenue over
the life of the operation. Tantalum, by comparison, makes a smaller contribution
to our forecast LoM revenue at 10% of P1 and 8% of P2 based on an assumed 30%
recovery rate.
Uis shaping up to be an African technology metal hub
Both tantalum and lithium are important metals in the green-tech revolution with
dominant uses in capacitors and batteries respectively. Combined with a positive
outlook for tin (read our tin price update note here), AfriTin is well placed to
become the battery metals champion in Africa. With significant exploration
potential on the Uis licence and studies advancing on the larger Phase 2 (“P2”)
expansion, we continue to see considerable upside beyond Phase 1, which on its
own already drives solid valuation metrics for ATM. We forecast Phase 2
production at ~5-6kt Sn per annum, placing AfriTin as a key source of conflict
free tin as demand continues to grow on the back of uses in electronics and
batteries. We estimate AfriTin’s cost per tonne of tin at Uis Phase 2 is US$5,844/t
when accounting for by-product value - versus record spot prices of ~US$35.5k/t
- markedly derisking the project.
Valuation: SOTP GBp15.4/sh offers 177% upside
We derive a SOTP target price of 15.4p, 177% above the current share price, based
on our Phase 1 and Phase 2 DCFs using a long-term tin price of US$25,000/t. We
also note at the current 3m forward price of ~US$33,050/t our valuation would
increase a further ~33% to 20.6p. With tin appearing to have stabilised slightly
below all-time high prices, we expect ATM’s focus to remain on optimising P1,
infill drilling and advancing studies on P2, building upon the Company’s strong
news flow so far this year.