Natural Resources

9 January 2018


In the news: Plateau Uranium


We’ll be marketing Ian Stalker of Plateau Uranium†† (PLU CN) in London in the week starting Monday 29 January. Plateau’s share price has trebled since it completed a C$1.8m private placement in November 2017, mainly on the back of encouraging drill results from its Falchani lithium and uranium discovery in the Macusani Plateau Project in south-eastern Peru. In late November it announced that high-grade lithium mineralisation averaging 3,670ppm Li over 61.2m was intersected below thick uranium mineralisation of 511ppm U3O8 over 56m from surface in the north-east of the area, while another drill hole in the south-east intersected 27.5m of 900ppm U3O8from surface and lithium of 3,255ppm over the remaining 37.5m of the hole.

Initial leach test results in December showed that 77-80% of contained lithium can be extracted from Falchani. These very positive results were achieved using sulphuric acid leaching at atmospheric pressure and a moderate temperature of 89ºC over a period of 12 hours, beyond which leaching was reported to have continued. Also, encouragingly, met test results for the uranium were released last week showing that 95% uranium could be leached at 20ºC over six hours, slightly in excess of the 2016 PEA; grades of 511-633ppm U3O8, 1.5-2.0x the existing resources in the PEA, should further improve the (already very low) costs. Falchani mineralisation is located immediately at surface, whereas the 2016 PEA had an average stripping ratio of 2:1 with an estimated production cost of US$17.28/lb U3O8. This positive newsflow is set against a backdrop of continued uranium production cuts from Kazataprom, which is expected to reduce supply by 20% over the next three years.

Plateau’s Macusani Project is now one of the world’s largest undeveloped uranium-lithium districts. It is a unique, shallow, volcanic-hosted supergene deposit in a mining-friendly jurisdiction and close to excellent infrastructure (that includes the Interoceanic Highway). It has access to labour, water and cheap hydro-electric power. Less than 15% of the 910km2 consolidated land package has been drilled, with a NI43-101 resource from March 2016 of 124Mlb U3O8 and 176,000t Li2O. The January 2016 PEA at US$50/lb U3O8 showed an NPV8 of US$603m, an IRR of 40.6% and a post-tax capital payback of 1.8 years. Proposed production would be 6Mlb pa U3O8over a ten-year mine life. As commented, the current LoM cash production cost is at US$17.28/lb, with an initial capital cost around US$300m.

Although Macusani started life as a pure uranium story, recent results have meant that the importance of lithium has increased significantly. By focusing test work on the Falchani area, Plateau will develop the lithium angle to the project more strongly. The key to what it has found so far is the extremely high recoveries; these will go a long way to making the lithium — like the uranium — extremely low cost to extract. There is plenty of work ongoing, so we can expect a lot more newsflow over the coming weeks and months. Please let us know if you’d like a meeting with Ian.


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Corporate Broking

Jonathan Williams

+44 (0)20 3440 6817




Charlie Cryer

+44 (0)20 3440 6834



Jim Taylor

+44 (0)20 3440 6821


Greg Bowie

+44 (0)20 3440 6833


David Bird

+44 (0)20 3440 6822


*RFC Ambrian acts as Nomad to this company

RFC Ambrian acts as Broker to this company

††RFC Ambrian acts as Agency Broker to this company

**RFC Ambrian has acted as a Placing Agent for this company

***RFC Ambrian acts as Financial Adviser to this company

†††RFC Ambrian has received fees from this company over the last 12 months

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