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AIS Resources Ltd
Symbol AIS
Shares Issued 52,416,099
Close 2018-06-11 C$ 0.29
Recent Sedar Documents

A.I.S. Resources to end Chiron drilling, exploration

2018-06-12 11:00 ET - News Release

Mr. Marc Enright-Morin reports

CHIRON DRILLING RESULTS AND GUAYATAYOC UPDATE

A.I.S. Resources Ltd. has completed two minus-90-degree-dip HQ-diameter diamond drill holes for a total of 757 metres and 21 trenches with depths of four to 4.5 metres in its Pocitos concessions at its Chiron project in the eastern area of the Pocitos salar. Economic cut-off values were set at 250 parts per million and 8:1 for Mg:Li (magnesium:lithium) values. All DDH hole and pit samples failed this test. The exploration team decided not to continue with the drilling program and exploration work. The company decided not to exercise the property option which was extended by the vendor until receipt of assay results. The company's qualified person, Phillip Thomas, supervised the drill program, sampling and analysis.

The company's interpretation of the geophysics was accurate with a major aquifer being encountered at 16 metres within a black sand unit, indicated by a significant drop in resistivity and at depth where a brown clay unit had transitioned into a coarse sandy unit with halite. High resistivity was correlated to solid halite units with almost no porosity. Significant brine flows at very high pressures were encountered at depth in both diamond drill holes with estimated flow rates of 50,000 to 70,000 litres per minute. In the case of DDH PO2, the brine flowed under its own pressure for approximately 5.25 to 5.5 hours.

The results of the double packer (closed downhole sampling) DDH and pit tests are shown in the associated table.

                                   POCITOS ONE -- DDH HOLE 1 
                             (all values in ppm (parts per million))
   
Sample No.    Density     Li       Ca     Mg       B       Na        K   Sr (strontium)   Mg:Li ratio
Accuracy
Mg/L ICP                0.05    0.025   0.05    0.05      0.1      0.2             0.01

PO1             1.211     66      788  1,111      89  116,571    2,375            18.17        16.8:1
PO2                       40    1,197     22     740  116,957    1,816            27.37        0.55:1
PO3                       59    1,010  1,237      47  113,729    2,139            23.41        21.0:1
PO4                       66      660  1,006     105  117,887    2,475            16.02        15.2:1
PO5                       76      588  1,100     131  116,127    2,630            13.05        14.5:1
PO6             1.213     88      581  1,258     145  116,147    2,846            11.73        14.3:1
 
                                  POCITOS ONE -- DDH HOLE 2
                            (all values in ppm (parts per million)) 
   
Sample No.      Li      Ca     Mg        B        Na        K    Sr (strontium)      Mg:Li ratio
Accuracy
Mg/L ICP      0.05   0.025   0.05     0.05       0.1      0.2              0.01

PO2-1           39   1,229    758       25   115,894    1,866             27.12           19.4:1
PO2-2           74   1,140  1,547       62   106,605    1,600             23.62             20.9
PO2-3          112   1,133  2,144       88   103,995    1,568             20.88           19.1:1
PO2-4          126   1,067  2,521      111    94,408    1,392             19.23           20.0:1
PO2-5           95     601  1,447      123   116,064    2,468             12.88            15.23
 
                                  PITS 
     (all values in ppm (parts per million) depth 4.0 m to 4.5 m)
   
Pit No.       Li     Ca     Mg       B         Na       K      Sr   Mg:Li

1             22    692    313      31     55,784     998   13.94    15:1
2       no brine
3             65    307    322     209    121,722   3,201    5.58    4.95
4       no brine
5             45    267    349      53    119,763   1,623    5.90    7.75
6       no brine
7             72    494  1,131     141    116,172   2,467    9.79  15.7:1
8             76    484  1,170     131    118,995   2,646   10.06  15.4:1
9             78    572  1,207     132    116,594   2,469   10.08  15.5:1
10           179    310    482     316    116,856   6,375   10.01    2.69
11            80    179    538   1,251    116,746   2,558   10.03    6.72

                             POCITOS 7 PITS 
                  (all values in ppm (parts per million))
   
Pit No.   Li    Ca       Mg      B        Na        K     Sr        Mg:Li

12        72   497    1,183    168   118,450    2,514   9.56       16.4:1
13        72   473    1,156    163   115,698    2,460   8.89       16.0:1
14        73   467    1,178    159   121,693    2,457   8.97       16.1:1
15        65   453    1,011    112   121,450    2,305   8.75       15.6:1
16        68   468    1,088    139   119,398    2,413   8.85       16.0:1

                               POCITOS 9 PITS 
                 (all values in ppm (parts per million)) 
   
Pit No.     Li     Ca      Mg      B        Na       K     Sr    Mg:Li

17          75    461   1,158    148   119,869   2,587   8.93   15.4:1
18          71    468   1,097    126   121,774   2,612   9.47   15.5:1
19         107    407   1,508    143   118,643   3,629   8.17   14.1:1
20         113    391   1,565    143   120,195   3,815  17.26   13.8:1
21          73    733     480     64    35,020   1,608  19.53    6.6:1

Interpretation

Both drill holes intersected substantial localized aquifers; however, sampling downhole using a double packer tool at 50-metre intervals showed that the lithium values were uneconomic and also the magnesium values were extremely high. Economic cut-off values were set at 250 ppm and 8:1 for Mg:Li values.

The geohydrological work on the surface showed that the lithium values in some of the pits with low sodium values increased substantially in lithium and sodium values over a seven-day period suggesting that surface water drained through the shallow brown sandy clay and black sand unit that had higher porosity due to the sand content, and more lithium rich brines flowed in that had been trapped in the higher-density lower clay units. The brine density differential was not measured but the low Na and Li values suggest these surface brines were lower density.

Pits 16 and 19 were sampled within 12 hours of being dug and then again in seven days.


Pit No.               Li         Ca         Mg          B          Na          K         Sr

16                     1        801         41          3       1,806         71       4.71
16 -- seven days      71        468      1,097        126     121,774      2,612       9.47
19                     1        655         84         17       3,861         89       7.55
19 -- seven days     107        407      1,508        143     118,643      3,629       8.17

The black sand unit that occurred about three metres below the surface predominately in the central salar area showed substantial porosity and transmissitivity. In DDH 1 10 metres of black sand core were lost from the drill rod below the 16-metre interval confirming substantial brine presence, but they were low in lithium concentration. The Pocitos salar was subjected to substantial rainfalls during December to March, 2018, and this impacted surface brine concentration. The highest lithium pit value was 179 ppm in pit 10 on the eastern most edge of Pocitos 2. No evaporation studies were undertaken but anecdotal evidence suggests that three to five centimetres of water had evaporated over the 30-day drill period.

The geological model adapted from the geophysics survey suggests that brine concentrates to the eastern edge but is stratified by less porous halite and clay units. A cemented aggregate sand sequence was intersected above the brine aquifer at 320 to 325 m in DDH1. Other explorers have confirmed this model in that brines sampled in the west had little or no lithium. The company took the view that considering the lithology, deeper drilling had a low probability of intersecting higher lithium grades.

Quality control and assurance

Alex Stewart International Argentina SA completed the sample analysis using an ICP (inductively coupled plasma) diagnostic machine. Three samples were submitted in a group of six, and every 10 in 20 for quality control. The variance was 2.5 per cent or less in the lithium analysis, which reflected the variance in brine sampling. ICP machine variance accuracy was 0.05 per cent.

Pit and DDH packer sampling quality control

Each bottle was rinsed in brine. A sampling tool was used to ensure that minimum disturbance was created and the clay sediments were not disturbed. A sample was taken and the cap put on the one-litre bottles with no air present. The temperature was taken and recorded that was approximately 6.5 C. The bottle was labelled PO1 or PO2 and then sealed with tape. The QP checked the labelling and recorded it and the site geologist took all the samples to Alex Stewart Laboratories. They sent a confirmation of the date, time and labels of the samples that were received and that they were still sealed.

Guayatayoc update

The company has received the date for its UGAMP (La Unidad de Gestio n Ambiental Minera Provincial) meeting slated for July 2, 2018. The proposed meeting is for the ratification of the company's proposed drilling and exploration program at Guayatayoc. The process involves community consultation with government and representatives of A.I.S..

Once the meeting is complete, a 30-day period for consultation is required, during which time A.I.S. may be requested to provide further information of its planned work program. If no objections are made, the permit will be issued.

Qualified person

Phillip Thomas, BSc, Geol, MBusM, MAIG, MAIMVA, (CMV), a qualified person as defined under National Instrument 43-101 regulations, has reviewed the technical information that forms the basis of this news release, and has approved the disclosure herein. Mr. Thomas is not independent of the company as he is an officer and shareholder.

About A.I.S. Resources Ltd.

A.I.S. Resources' current activities are focused exclusively on the exploration and development of lithium brine projects in northern Argentina.

We seek Safe Harbor.

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