Aura Energy Limited Tiris Uranium Project Update
December 07 2016 - 3:07AM
UK Regulatory
TIDMAURA
7 December 2016
To view this release as a pdf complete with referenced images please click the
following link:
http://www.auraenergy.com.au/investor/ASX%20Announcements/2016/
Tiris%20Project%20Development%20Update%207%20December%202016.pdf
AURA RECOMMENCES TIRIS DEFINITIVE FEASIBILITY STUDY
TIRIS FIELD ACTIVITIES HAVE NOW COMMENCED
ACTIVITIES TO INCLUDE SAMPLING THE SABKHA PERMIT
FOR SODA ASH AND LITHIUM
Aura Energy Limited (ASX:AEE/ AIM:AURA) is pleased to announce that following
its successful UK listing and fund raising, activities are now underway with
the recommencement of the Tiris Definitive Feasibility Study (DFS) with a
target for completion at the end 2017.
The Tiris Uranium project in north eastern Mauritania is a shallow open-pit
mining project with a 49Mlbs U308 Indicated and Inferred Resource, 94% recovery
rates and simple processing allowing a potential 500% grade uplift (1). It is
forecast to have C1 Cash costs of US$30/lb U?O? and low-capex costs of US$45m
and has a development MOU signed with a Chinese engineering group (2).
Since the fundraising in September 2016 Aura has continued planning and review
for the
re-establishment of the DFS program which is now fully underway.
The activities have included the following;
* Appointment of Mr Rod Unwin as the Tiris Study Manager, an experienced
African Study Manager having completed studies for Mineral Deposits Ltd on
the Sabodala Gold Mine and Grand Cote Mineral Sands Projects in Senegal
* Permanent appointment of Dr Will Goodall as Principal Metallurgist for Aura
Energy
* Establishment of the Tiris Project Peer Review Committee
* Commencement of down hole gamma logging of 2015 drillholes
* Ultra-detailed ground radiometric surveying of Mineral Resources
* Planning of geophysical studies for the review and drilling of regional
water sources
* Re-commencement of the Environmental Impact Study
* Continuation of metallurgical studies for leaching and beneficiation
* Preparation of documents for the Mining Lease Application
* Meeting with Mines Ministry officials in Mauritania
Aura's Tiris Project remains a small low capex development capable of
significant uranium production based on the beneficiation step in the process.
The study has a target completion date of end 2017.
As part of the field activities Aura will also commence an initial scoping
sample program on its Sabkha, or salt pan, for possible soda ash and lithium
occurrences.
The location of the Sabkha between Aura's Tiris Project East and West tenements
provides a favourable location should a source of soda ash (Na2CO3) be
identified. Aura's 2014 Scoping Study identified the need for up to 16,000
tonnes of soda ash which, including transport, would account for approximately
25% of Tiris' operating costs (2). Utilising a nearby source of soda ash has
the potential to significantly reduce these costs. Additionally potential for
revenue from other minerals such as lithium or back-loading soda ash to port
for export would further reduce the Tiris operating cost.
Peter Reeve, Aura Energy's Executive Chairman said, "Aura remains extremely
fortunate to have retained such a high-quality team of technical professionals
to advance its Tiris Project and Rod Unwin's addition to the team further
enhances this; Rod has a proven track record of developing projects in Africa
to the production stage.
With the DFS firmly back underway and field activities commenced we remain
confident of completing the study by the end of 2017. Aura maintains that with
recovery of the uranium price over the coming two years and the strategic
balance of its other minerals exploration program it is perfectly positioned to
fund and construct Tiris to coincide uranium production with an improved
uranium pricing environment.
To have this study back underway and finally towards completion and with the
sampling of Aura's new soda ash and lithium tenements commences an exciting
period towards our ultimate goal of cashflow."
For further information please contact:
Aura Energy Limited Telephone: +61 (3) 9516 6500
Peter Reeve (Executive Chairman) info@auraenergy.com.au
WH Ireland Limited Telephone: +44 (0) 207 220 1666
Adrian Hadden
Katy Mitchell
James Bavister
Yellow Jersey PR Limited Telephone:
Felicity Winkles +44 (0) 7748 843 871
Joe Burgess +44 (0) 7769 325 254
ABOUT AURA ENERGY'S PROJECTS
TIRIS PROJECT, MAURITANIA (AURA 100%)
The Tiris Uranium Project is based on a major greenfields uranium discovery in
Mauritania, with 49 Mlb U3O8 in current resources (1) from 66 million tonnes @
334 ppm U3O8. The project has several natural attributes which result in low
capital and operating costs. These attributes are:
* Shallow flat-lying surface mineralisation (only 1-5 metres deep)
within unconsolidated gravels
* Low cost mining with no blasting and negligible overburden
* Uranium ore can be simply (wash and screen) upgraded by up to
700%; from 335 ppm to 2500ppm
* Leads to a very small plant, small footprint and minimal
supporting infrastructure
* Leach feed grade 2,000-2,500 ppm U3O8 with 94% leaching recovery
in 4 hours
The conceptual 1 Mtpa mine and plant project described in the Scoping Study (2)
was designed to take full advantage of these unusual characteristics, whilst
providing a low capital cost and rapid project development and construction.
Significantly, a water study by Golders has indicated that potential sources of
water in the immediate vicinity will satisfy the demands of the project.
The Study, which indicates 11 million pounds of uranium will be produced over
an initial mine life of 15 years, only utilises 20% of the known Global Mineral
Resource resulted in the following outputs (2);
* Low capital cost - US$45 million
* Low operating cost - A$30/lb
* Easily scalable
* Mining at 120 tph (1.0 Mtpa)
* Small 25 tph leach facility
* Mined grade >420ppm U3O8 for 15 years
* Produce 0.7-1.1 Mlbs U3O8 per year
* Expand project from cashflow
HÄGGÅN PROJECT, SWEDEN (AURA 100%)
Häggån is located in central Sweden and is one of the largest undeveloped
uranium projects in the world. The project has a resource of 803 million pounds
(3) uranium with significant base metal by-products.
Sweden remains a nuclear friendly jurisdiction with 10 operating nuclear power
reactors. In 2013, Sweden generated 152.5 TWh, of which 65.8 TWh (43%) was from
nuclear and 61.3 TWh (40%) from hydro. Sweden imports most of its nuclear fuel,
including all enrichment. It is one of the few countries that has the
opportunity, within its sovereign borders, to be vertically integrated from
nuclear power generation down to the U3O8 fuel source. Public opinion polls in
the last few years had shown steady majority (over two-thirds) support for
nuclear power (4).
The Häggån project is located in a sparsely populated area of swamp and forest
used mainly for commercial forestry. Sweden's has a current and active mining
industry, with a clear regulatory position and a well-established path from
exploration to production.
A Scoping Study (5) suggests that the Häggån Project has excellent potential to
become a major, low cost producer of uranium, with by-product nickel and other
metals. Aura's discovery that the mineralisation is ideally suited to bioleach
metal extraction was the major breakthrough to creating a robust and economic
project. Bioleaching, including bioheap leaching, is a proven technology widely
used in copper and gold industries with some application to the uranium
industry.
The Häggån Inferred Resource contains 2.35 billion tonnes at the grades shown
in the table below(1). Metal content is also shown.
The project contemplated in the Scoping Study was a large scale heap leach with
recovery of base metals as separate and high purity sulphide precipitates. The
Scoping Study outcomes were as follows (5);
* Capital cost - US$540 million
* Low operating cost - A$13.50/lb U3O8
* Mining rate 30 Mtpa
* Mined grade 160 ppm U3O8 for 30 years
* Production 7.8 Mlbs U3O8 per year
NOTES TO PROJECT DECRIPTIONS
(1) There is a low level of geological confidence associated with
inferred mineral resource and there is no certainty that further exploration
work will result in the determination of indicated measured resource or that
the production target will be realised.
(2) The Company released to the ASX the Tiris Project Scoping Study
on 16 July 2014 and the Company believes that no material change to forecast
capital and operating costs and forecast production rates have occurred since
the release.
(3) There is a low level of geological confidence associated with
inferred mineral resource and there is no certainty that further exploration
work will result in the determination of indicated measured resource or that
the production target will be realised.
(4) http://www.world-nuclear.org/info/Country-Profiles/Countries-O-S/
Sweden
(5) The Company released to the ASX the Haggan Project Scoping Study
on 7 February 2012 and an updated study on 29 May 2014. The Company believes no
material change to forecast capital and operating costs and forecast production
rates have occurred since the releases.
END
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