The table below shows results of the resource estimate at a cut-off grade of 0.5% nickel for the limonite horizon and 0.8% nickel for the saprolite horizon. This resource estimate is exclusive of the other regional nickel laterite deposits Agata South, Bolo-bolo and Karihatag.
| Classification |
Sub-Domain |
kTonnes |
Ni |
Co |
Fe |
Al |
Mg |
SiO2 |
CaO |
Cr2O3 |
MnO |
| Measured |
Upper Limonite |
211 |
0.98 |
0.11 |
49.7 |
3.11 |
0.5 |
2.8 |
0.03 |
3.67 |
1.01 |
| Lower Limonite |
27 |
1.13 |
0.15 |
35.5 |
2.57 |
5.1 |
21.1 |
0.22 |
2.86 |
0.85 |
| Total Limonite |
238 |
1.00 |
0.11 |
48.1 |
3.05 |
1.0 |
4.9 |
0.05 |
3.58 |
1.00 |
| Upper Saprolite |
478 |
1.19 |
0.03 |
11.3 |
0.39 |
17.9 |
41.6 |
0.32 |
0.89 |
0.23 |
| Lower Saprolite |
|
|
|
|
|
|
|
|
|
|
| Total Saprolite |
478 |
1.19 |
0.03 |
11.3 |
0.39 |
17.9 |
41.6 |
0.32 |
0.89 |
0.23 |
| Measured Sub-Total |
716 |
1.13 |
0.06 |
23.5 |
1.27 |
12.3 |
29.4 |
0.23 |
1.78 |
0.49 |
| Indicated |
Upper Limonite |
8,360 |
0.93 |
0.11 |
47.9 |
3.45 |
0.6 |
3.3 |
0.21 |
3.13 |
0.92 |
| Lower Limonite |
1,403 |
1.00 |
0.12 |
36.3 |
3.01 |
3.6 |
15.8 |
0.23 |
2.58 |
0.83 |
| Total Limonite |
9,764 |
0.94 |
0.11 |
46.3 |
3.39 |
1.0 |
5.1 |
0.22 |
3.05 |
0.90 |
| Upper Saprolite |
23,411 |
1.16 |
0.03 |
11.9 |
0.55 |
16.5 |
40.3 |
0.35 |
0.91 |
0.25 |
| Lower Saprolite |
48 |
0.84 |
0.02 |
8.9 |
0.35 |
19.4 |
41.1 |
0.33 |
0.70 |
0.18 |
| Total Saprolite |
23,459 |
1.16 |
0.03 |
11.9 |
0.55 |
16.5 |
40.3 |
0.35 |
0.91 |
0.25 |
| Indicated Sub-Total |
33,222 |
1.10 |
0.05 |
22.0 |
1.38 |
11.9 |
30.0 |
0.31 |
1.54 |
0.44 |
| Measured & Indicated |
Grand Total |
33,938 |
1.10 |
0.05 |
22.0 |
1.38 |
11.9 |
30.0 |
0.31 |
1.55 |
0.44 |
|
|
|
|
|
|
|
|
|
|
|
|
| Inferred |
Upper Limonite |
178 |
1.05 |
0.11 |
47.7 |
3.38 |
0.8 |
5.5 |
0.03 |
3.16 |
0.93 |
| Lower Limonite |
79 |
1.15 |
0.10 |
35.7 |
2.97 |
3.9 |
21.7 |
0.14 |
2.73 |
0.82 |
| Total Limonite |
258 |
1.08 |
0.11 |
44.0 |
3.25 |
1.8 |
10.5 |
0.06 |
3.03 |
0.90 |
| Upper Saprolite |
1,828 |
1.04 |
0.03 |
12.4 |
0.63 |
16.2 |
41.5 |
0.35 |
0.99 |
0.26 |
| Lower Saprolite |
0.02 |
1.11 |
0.02 |
7.3 |
0.21 |
18.9 |
42.7 |
0.28 |
0.65 |
0.16 |
| Total Saprolite |
1,828 |
1.04 |
0.03 |
12.4 |
0.63 |
16.2 |
41.5 |
0.35 |
0.99 |
0.26 |
| Grand Total |
2,086 |
1.04 |
0.04 |
16.3 |
0.96 |
14.4 |
37.7 |
0.32 |
1.24 |
0.34 |
The mineral resource estimates were produced by Mark Gifford MSc (Hons), who is a Fellow of the Australian Institute of Mining and Metallurgy (FAusIMM) and an independent qualified person as defined by NI 43-101, in conjunction with Quantitative Group Pty Ltd (QG) in Perth, Australia. A total of 593 drill holes were completed at Agata North for 10,851 metres, and 11,100 core samples were used in the resource estimate. The resource estimation method applied was Ordinary Kriging. Cut-off grades applied to the resource were 0.5% nickel within the Limonite zone and 0.8% nickel within the Saprolite zone.
Sample preparation and assaying were performed by Intertek Testing Services, Phils., Inc. (“ITS”). The ITS Phils. facility is among Intertek’s global network of mineral testing laboratories. Each sample is analyzed for nickel (Ni), cobalt (Co), iron (Fe), magnesium (Mg), aluminum (Al), silica (SiO2), CaO, Cr2O3, K2O, MnO, Na2O, P2O5, and TiO2. Whole rock analyses are done using X-ray Fluorescence (XRF). The samples are fused using lithium metaborate. XRF analysis determines total element concentrations that are reported as oxides. ITF mineral testing laboratories implement quality protocols. Normal Quality Control and Quality Assurance procedures were carried out, using a system of repeat analyses plus split sample analyses and the use of standard reference materials and blanks. Assay verification was carried out using standard samples and re-assaying field and pulp duplicates.