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Pure Energy Minerals Ltd (2)
Symbol PE
Shares Issued 66,226,056
Close 2016-09-13 C$ 0.79
Market Cap C$ 52,318,584
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Pure Energy's CV-3 well returns average of 175 mg/L Li

2016-09-14 09:18 ET - News Release

Mr. Patrick Highsmith reports

PURE ENERGY MINERALS REPORTS POSITIVE INITIAL LITHIUM BRINE ANALYSES FROM CV-3 WELL AT CLAYTON VALLEY SOUTH

The initial brine analyses from Pure Energy Minerals Ltd.'s latest exploration borehole at the Clayton Valley South (CVS) lithium brine project are very positive. Sampling in CV-3 encountered continuously elevated lithium compositions from a depth near the top of the perforated interval of the well at approximately 244 metres (800 feet) to the deepest sample collected near the bottom of the perforated interval at 564 metres (1,850 feet) below surface. The lithium content over this 320-metre (1,050-foot) interval ranged from 150 milligrams per litre to 200 mg/L, averaging approximately 175 mg/L.

In June, drillers successfully completed the CV-3 well beyond target to a total depth of 610 metres (2,000 feet) below ground level. The new exploration hole is located approximately 200 metres (656 feet) southeast of CV-1. During July, the well drillers prepared the well for geophysical logging and sampling by flushing sediment and residual drilling muds from the hole. Independent hydrogeologists from Montgomery & Associates completed sampling of the well using site-specific hardware and techniques developed by Pure Energy and its team. The sampling targeted specific intervals based on geology and analysis of downhole geophysical data. The team collected a total of 19 discrete fluid samples from depths of 45 metres (150 feet) down to 564 metres (1,850 feet).

As previously encountered in the northern project area, the results confirm the presence of a shallow, fresher water zone from 45 metres (150 feet) down to approximately 122 metres (400 feet), which is underlain by brackish zones from 152 metres (500 feet) to 175 metres (575 feet). Brine is first encountered at a depth between the brackish zone and the top of the perforated zone at approximately 244 metres (800 feet). The range of lithium concentrations in the brine is very consistent (possibly within the analytical error of the method), and there is no evidence of zonation. Since the samples are from discrete depths, there may be variation between the sampled intervals, but there were no internal samples of fresher water or indications of dilution in the geophysical data below the brine interface.

Pure Energy Minerals' chief executive officer, Patrick Highsmith, commented on the results: "We are very pleased with the grade and consistency of the brine encountered in CV-3. It is also positive that all the wells in the northern portion of the project have bottomed in brine. In fact, CV-3 confirms the presence of lithium brine well below the bottom of our inferred resource, at 494 metres (1,620 feet). The average lithium concentrations encountered in CV-1 (209 mg/L) and CV-3 (175 mg/L) are well above the average grade of our inferred resource (102 mg/L). Given these higher lithium grades and increased saturated thickness in this area, we expect to see the lithium endowment increase in the northern project area."

                           CV-3 BRINE CHEMISTRY FOR SELECTED ELEMENTS  
                                       (all analyses in mg/L)

Sample intervals          Li         Mg          Ca       Sr           K          Na          Cl

CV-3 at 800 feet         150        400       1,100       87       1,900      45,000      57,000
CV-3 at 850 feet         190        510       1,600       84       3,200      41,000      61,000
CV-3 at 1,025 feet       200        510       1,600       92       3,000      45,000      65,000
CV-3 at 1,125 feet       180        480       1,500       83       2,800      40,000      57,000
CV-3 at 1,225 feet       180        540       1,600       90       2,800      46,000      63,000
CV-3 at 1,325 feet       180        510       1,600       88       3,000      43,000      58,000
CV-3 at 1,425 feet       180        480       1,500       88       2,700      45,000      61,000
CV-3 at 1,525 feet       180        480       1,500       90       2,800      44,000      62,000
CV-3 at 1,600 feet       160        460       1,400       80       2,600      39,000      54,000
CV-3 at 1,650 feet       170        480       1,500       84       2,700      40,000      57,000
CV-3 at 1,750 feet       170        470       1,400       82       2,600      42,000      57,000
CV-3 at 1,755 feet       170        470       1,400       83       2,600      40,000      57,000
CV-3 at 1,850 feet       160        420       1,300       97       2,300      45,000      58,000
Average CV-3 brine       175        478       1,462       87       2,692      42,692      59,000

In general, lithium concentrations are positively correlated with brine electrical conductivity from downhole logs, and the geophysical data show that elevated fluid conductivity extends to the base of the borehole. This means that lithium brine is likely present to the base of the borehole, significantly extending the depth range of lithium brines on the Clayton Valley South project.

The overall chemistry of the CVS brines continues to be favourable. The magnesium and calcium concentrations are consistent with previous sampling from nearby wells. The average ratio of magnesium to lithium in CV-3 is approximately 2.7. Magnesium-to-lithium ratios of less than 3.0 are considered to be favourable for lithium processing, and lower concentrations of calcium and strontium may also be beneficial.

September and October will be active months in the field at the CVS project. The company continues to augment its database and build a three-dimensional picture of the CVS brine and its host aquifers. Continuing work includes a new round of downhole geophysical logging in CV-3 and other wells. Field crews are also collecting additional samples from several of the boreholes in Clayton Valley. The Pure Energy team is well under way with the engineering and technical studies that will contribute to the preliminary economic assessment slated for completion later this year.

Quality assurance and quality control

All analytical data reported in this news release were generated by Western Environmental Testing Laboratory (Wetlab) of Sparks, Nev. Wetlab is accredited by the Nevada State Division of Environmental Protection for determination of lithium, magnesium and other elements in non-potable water by EPA method 200.7. The lab employs its own quality assurance program to ensure accuracy and precision of its data. Consistent with industry best practice, Pure Energy inserts additional blind quality control samples with every batch of samples.

ALS Minerals in Vancouver, B.C., provides systematic blind and independent check analyses on the lithium and other analyses in the sampling program at Clayton Valley South. ALS Minerals Vancouver operates an industry-leading quality management system and is accredited under ISO 17025 for provision of mineral analysis. The data described herein have satisfied the company's quality criteria for release.

Patrick Highsmith, certified professional geologist (AIPG CPG No. 11702), is a qualified person as defined by National Instrument 43-101, and has supervised the preparation of the scientific and technical information that forms the basis for this news release. Mr. Highsmith is not independent of the company as he is an officer and director.

About Pure Energy Minerals

Pure Energy is currently focused on the development of its prospective CVS lithium brine project, which has the following key attributes:

  • A large land position with excellent existing infrastructure in a first-class mining jurisdiction: approximately 9,544 acres in four main claim groups, mostly in the southern half of Clayton Valley, Esmeralda county, Nevada;
  • Adjacent to the only producing lithium operation in the United States (Albemarle's Silver Peak lithium brine mine);
  • An inferred mineral resource of 816,000 metric tonnes of lithium carbonate equivalent (LCE), reported in accordance with NI 43-101.

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