IsoEnergy Drills 3.5 metres of 10.4% U3O8 including 0.5 metres of 38.2% U3O8 in Drill Hole LE19‐02 at the Hurricane Zone
IsoEnergy Drills 3.5 metres of 10.4% U3O8 including 0.5 metres of
38.2% U3O8 in Drill Hole LE19‐02 at the Hurricane Zone
Vancouver, BC, February 13, 2019 – IsoEnergy Ltd. (“IsoEnergy” or the “Company”) (TSXV: ISO; OTCQX: ISENF)
is pleased to announce chemical assay results from intervals of strong uranium mineralization reported earlier
(see news release dated January 28, 2019) from the Hurricane zo ne. The highlight is an intersection in drill
hole LE19‐02 of 3.5 metres averaging 10.4% U3O8 from 326.5‐330.0 metres, that includes 38.2% U3O8 over 0.5
metres from 329.0‐329.5 metres. The Hurricane zone is a new discovery of high‐grade uranium mineralization
on the Company’s 100% owned Larocque East property (the “Property”) in the eastern Athabasca Basin of
northern Saskatchewan.
Highlights
Drill Hole LE19‐02 intersected 3.5 m @ 10.4% U3O8, including 0.5 m @ 38.2% U3O8
Drill Hole LE19‐03 intersected 3.0 m @ 2.7% U3O8, including 0.5 m @ 13.3% U3O8
Substantial Ni mineralization is present in both drill holes
Five of a planned 10 drill holes are complete
This drill program and subsequent follow‐up efforts in 2019 are fully funded
Craig Parry, Chief Executive Officer commented: “I’m very pleased to report these initial assays from our follow‐
up drilling campaign at the Hurricane zone. With an impressive width, growth along its length, and some very
high‐grade assays, Hurricane has demonstrated potential to grow into a significant find.”
Steve Blower, Vice President, Exploration commented: “Our geolo gists deserve a lot of credit for their
interpretation of the geology and rapid identification of the key controls on mineralization. Uranium at
Hurricane is related to certain faulted graphitic basement units t h a t f o r m a s u b t l e r i d g e a l o n g t h e s u b ‐
Athabasca unconformity. We will continue to target these struc tures as we progress along the length of the
zone with subsequent drilling.”
LE19‐02 and LE19‐03 Assay Results
Drill hole LE19‐02 intersected two main intervals of fracture c ontrolled, disseminated and replacement styles
of pitchblende uranium mineralization (>1,000 cps RS‐125), as summarized in Table 1. An upper zone of
sandstone‐hosted uranium mineralization is followed by strong u ranium mineralization at the unconformity
that averages 10.4% U3O8 and 0.8% Ni over 3.5 metres. Included in the interval are maximum values of 38.2%
U3O8 and 1.6% Ni over 0.5 metres.
Drill hole LE19‐03 also intersected two main intervals of uranium mineralization that are similar to those
described above for LE19‐02. An upper zone of sandstone‐hosted uranium mineralization is followed by strong
uranium mineralization at the unconformity that averages 2.7% U3O8 and 2.5% Ni over 3.0 metres. Included in
the interval are maximum values of 13.3% U3O8 and 11.8% Ni over 0.5 metres.
Table 1 – Hurricane Zone Radioactive Intervals
Hole‐ID From (m) To (m) Length (m) Radioactivity 1,2 (CPS) Chemical Assays Location
U 3O8 (%) Ni (%)
LE19‐02 316.5 320.0 3.5 >1,000 0.2 0.1 Section 4560E
and 326.5 330.0 3.5 >1,000 10.4 0.8
incl. 328.5 330.0 1.5 >20,000 23.6 1.6
incl. 329.0 329.5 0.5 >50,000 38.2 1.5
LE19‐03 324.0 324.5 0.5 >1,000 0.2 0.1 Section 4560E
and 326.5 329.5 3.0 >1,000 2.7 2.3
incl. 328.5 329.5 1.0 >5,000 7.6 6.6
incl. 329.0 329.5 0.5 >20,000 13.3 11.8
LE19‐04 329.0 329.5 0.5 >1,000 Pending Section 4560E
333.0 333.5 0.5 >1,000 Pending
LE19‐05 No significantly elevate d radioactivity Section 4560E
LE19‐06 328.0 330.0 2.0 >1,000 Pending Section 4585E
and 332.0 336.0 4.0 >5,000 Pending
incl. 333.5 335.5 2.0 >10,000 Pending
incl. 333.5 334.0 0.5 >20,000 Pending
Notes: 1. Radioactivity is total gamma from drill core measured with an RS‐125 hand‐held spectrometer.
2. Measurements of total gamma are an indication of uranium content, but may not correlate with assays
Larocque East
Larocque East consists of 6 mineral claims totaling 3,200 hectares and was purchased in May, 2018. The
Property is owned 100% by IsoEnergy and is not encumbered by any royalties or other interests. Larocque East
is immediately adjacent to the north end of IsoEnergy’s Geiger p r o pe r t y a n d i s 3 5 k i l o m e t r e s n o r t h w e s t o f
Orano Canada’s McClean Lake uranium mine and mill.
The Property covers a 15‐kilometre‐long northeast extension of the Larocque Lake conductor system; a trend
of graphitic metasedimentary basement rocks that is associated with significant uranium mineralization in
several occurrences to the southwest of the Larocque East prope rty. The closest of these are the Larocque
Lake and Larocque North zones, which are located 6.5 kilometres and 0.4 kilometres, respectively, to the
southwest of the western Larocque East property boundary. Dril ling at the Larocque Lake zone has returned
his to rical inters ectio ns of up to 29.9% U3O8 over 7.0 metres in drill hole Q22‐040. Drilling at the Larocq ue
North zone has returned intersections of up to 2.05% U3O8 over 0.6 metres in drill hole Q22‐16. Like the nearby
Geiger property, Larocque East is located adjacent to the Wollaston‐Mudjatik transition zone ‐ a major crustal
s u t u r e r e l a t e d t o m o s t o f t h e m a j o r u r a n i u m d e p o s i t s i n t h e e a st e r n A t h a b a s c a B a s i n . I m p o r t a n t l y , t h e
sandstone cover is thin, ranging between 140 metres and 330 metres in previous drilling.
A total of 23 historical drill holes have been completed on the Property along approximately 22 kilometres of
graphitic conductors. Five of the historical holes have inters ected weak uranium mineralization on the
Larocque East property to date, including drill holes KER‐07 (0 .12% U3O8 over 0.1 metre) and KER‐11 (0.06%
U3O8 over 0.5 metre) near the western property boundary, within the general vicinity of the Hurricane zone.
Next Steps
Additional drilling is underway on the 4585E cross‐section to t he north and south of drill hole LE19‐06. This
will be followed by along‐strike step‐outs to the west of the d iscovery section. The originally contemplated
drill program is approximately half finished. Following a $5.5 M financing that closed in December, 2018, the
company is fully funded for the current drill program and subsequent follow‐up in 2019.
Figure 1 – Larocque East Property Location Map
Figure 2 –Cross‐Section 4560E
Qualified Person Statement
The scientific and technical information contained in this news release was prepared by Andy Carmichael,
P.Geo., IsoEnergy’s Senior Geologist, who is a “qualified perso n” (as defined in National Instrument 43‐101 –
Standards of Disclosure for Mineral Projects). Mr. Carmichael has verified the data disclosed. This news release
refers to properties other than those in which the Company has an interes t. Min eralizatio n o n tho s e o ther
properties is not necessarily indicative of mineralization on t he Company’s properties. An RS‐125 hand‐held
spectrometer was used to verify that the radioactivity is due to uranium. As the drill holes reported herein are
vertical or near‐vertical, and the mineralization is interprete d to be horizontal, the true thickness is expected
to be within 90% of the cored intervals.
About IsoEnergy
IsoEnergy is a well‐funded uranium exploration and development c o m p a n y w i t h a p o r t f o l i o o f p r o s p e c t i v e
projects in the eastern Athabasca Basin in Saskatchewan, Canada and a historic inferred mineral resource
estimate at the Mountain Lake uranium deposit in Nunavut. IsoE nergy is led by a Board and Management
team with a track record of success in uranium exploration, dev elopment and operations. The Company was
founded and is supported by the team at its major shareholder, NexGen Energy Ltd.
Craig Parry
Chief Executive Officer
IsoEnergy Ltd.
+1 778 379 3211
www.isoenergy.ca
Investor Relations
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+1 604 684 6730
www.isoenergy.ca
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