GoldMining Reports New Drill Results Highlighting Exploration Potential at São Jorge Project, Pará State, Brazil
The reverse circulation ("RC") drilling results detailed in this release comprise the continuation of the William South drilling program ("the Program"), a high priority part of the broader 2025 São
Highlights:
-
William South RC Drilling Results:
- 12 metres ("m") at 2.38 grams per tonne ("g/t") gold ("Au") from 13 m depth, including 1 m at 22 g/t Au (SJRC-048-25)
- 4 m at 1.11 g/t Au from 46 m depth (SJRC-049-25)
- 1 m at 1.23 g/t Au from 16 m depth (SJRC-047-25)
- Preliminary processing of Induced Polarisation ("IP") data indicates drilling completed at William South to date has only tested the southern flank of a broad chargeability anomaly, which is similar in scale and intensity to the known IP signature of the São Jorge Deposit.
- Drilling over the highest chargeability core of the William South IP anomaly is planned in 2026.
- A total of 9,533 metres of drilling was safely and successfully completed on-budget during 2025.
- Exploration results received to date support the broader potential for discovery and delineation of new zones of mineralization across the 46,000 hectare São
Jorge Project .
Alastair Still, Chief Executive Officer of GoldMining, commented: "GoldMining is further encouraged by the additional positive drill results yielded from the 2025 RC drilling completed to date at the William South prospect, an emerging gold discovery located a short distance from the known São Jorge gold deposit. The geology and geophysical signature at William South resembles the São Jorge gold deposit itself based on exploration to date. This work has been encouraging of the potential for this area, highlighting that significant additional systematic exploration is required, especially over the core of the IP anomaly which has not yet been tested by drilling.
In conjunction with William South, we continue to explore additional targets across the broad 12 km x 7 km geochemical footprint overlying the São Jorge property-scale mineral system, where we have additional exploration results pending. The excellent infrastructure at the 100% owned 46,000 hectare São
Project Overview
The São
2025 São Jorge Mineral System Exploration Program
The São Jorge mineral system is defined by a comprehensive exploration data set which the Company has developed over previous campaigns. Surrounding the previously delineated São Jorge deposit, which has a defined 1.4 km strike length, the broader mineral system comprises a zone of contiguous surface geochemical anomalies over an area of 12 km x 7 km, which the Company interprets to be the surface expression of a broad intrusive related gold system.
The 2025 São Jorge exploration program successfully and safely completed a total of 9,533 m of drilling, which exceeded the total planned meterage of 9,000 m while remaining on–budget. The Project benefitted from the introduction of RC drilling which is cheaper and more rapid than diamond core, while providing greater depth penetration and assay reliability than auger drilling. The Program comprised 3,862 m diamond core, 3,528 m RC and 2,143 m auger drilling.
Of the 84 RC holes drilled to date across the Project for a total of 3,528 metres, assays have been returned for 78 holes, with the remaining 18 holes pending assays. To date, four target areas have returned >1 g/t Au intercepts from RC drilling: William South,
Previously announced initial intercepts at the William South prospect included 4 m at 1.78 g/t Au from 12 m depth (see news release
New assay results are presented herein for additional drilling at the William South Prospect, which is located 1.5 km north of the Deposit. The full drilling program at William South comprised 20 RC holes drilled on three fences to test beneath a broad zone of elevated gold-in-soil and auger drilling geochemistry. The western–most drill fence returned the best assay results from weathered monzogranite containing disseminated pyrite mineralization. The strongest mineralized intercept to date, comprising 12 m at 2.38 g/t Au (including 1 m at 22.08 g/t Au), occurs adjacent to a contact between monzogranite and syenogranite intrusive phases. A similar intrusive contact localizes strain, hydrothermal alteration and gold mineralization at the São Jorge deposit. Mineralization remains open along strike and to depth.
Preliminary processing of the recently completed 40 line km of IP surveying indicates that a broad east-west oriented high tenor chargeability anomaly, with coincident high resistivity, occurs at the William South target. Overall, the William South geophysical signature is similar in nature, scale and intensity to the São Jorge deposit. Drilling completed to date primarily targeted the highest tenor gold-in-soil geochemical anomaly, which occurs south of the core geophysical anomaly. Future drilling will extend northwards to test the chargeability / resistivity high.
Further RC drilling was subsequently completed at the Ivonette and
Table 1 São Jorge
2025
drilling results at William South prospect (as of
|
Prospect |
Drill Hole Number |
Interval |
Interval |
Sample |
|
|
William South |
SJRC-045-25 |
21 |
22 |
1 |
0.48 |
|
|
47 |
48 |
1 |
0.22 |
|
|
SJRC-046-25 |
12 |
16 |
4 |
1.78 |
|
|
including |
13 |
14 |
1 |
5.03 |
|
|
including |
14 |
15 |
1 |
1.19 |
|
|
|
24 |
25 |
1 |
0.19 |
|
|
|
49 |
51 |
2 |
0.13 |
|
|
SJRC-047-25 |
3 |
4 |
1 |
0.22 |
|
|
|
16 |
17 |
1 |
1.23 |
|
|
|
22 |
23 |
1 |
0.26 |
|
|
|
37 |
41 |
4 |
0.22 |
|
|
including |
39 |
40 |
1 |
0.47 |
|
|
SJRC-048-25 |
13 |
25 |
12 |
2.38 |
|
|
including |
16 |
17 |
1 |
4.86 |
|
|
including |
17 |
18 |
1 |
22.08 |
|
|
|
28 |
29 |
1 |
0.27 |
|
|
|
31 |
32 |
1 |
0.15 |
|
|
|
39 |
40 |
1 |
0.19 |
|
|
SJRC-049-25 |
2 |
3 |
1 |
0.12 |
|
|
|
31 |
32 |
1 |
0.24 |
|
|
|
46 |
50 |
4 |
1.11 |
|
|
including |
46 |
47 |
1 |
2.35 |
|
|
including |
47 |
48 |
1 |
1.69 |
|
|
SJRC-050-25 |
45 |
46 |
1 |
0.12 |
|
|
|
48 |
49 |
1 |
0.11 |
|
|
SJRC-051-25 |
45 |
46 |
1 |
0.34 |
|
|
SJRC-052-25 |
2 |
4 |
2 |
0.21 |
|
|
SJRC-053-25 |
NSR |
||||
|
SJRC-054-25 |
0 |
2 |
2 |
0.15 |
|
|
|
5 |
6 |
1 |
0.20 |
|
|
|
6 |
7 |
1 |
0.72 |
|
|
|
9 |
10 |
1 |
0.14 |
|
|
|
12 |
13 |
1 |
0.32 |
|
|
SJRC-055-25 |
1 |
2 |
1 |
0.12 |
|
|
SJRC-056-25 to |
NSR |
||||
|
SJRC-059-25 |
29 |
31 |
2 |
0.20 |
|
|
|
32 |
33 |
1 |
0.16 |
|
|
SJRC-060-25 |
22 |
23 |
1 |
0.49 |
|
|
SJRC-061-25 |
10 |
12 |
2 |
0.15 |
|
|
|
37 |
38 |
1 |
0.12 |
|
|
SJRC-062-25 |
3 |
4 |
1 |
0.11 |
|
|
|
15 |
16 |
1 |
0.14 |
|
|
SJRC-063-25 |
18 |
19 |
1 |
0.70 |
|
|
|
21 |
22 |
1 |
0.15 |
|
|
SJRC-064-25 |
8 |
9 |
1 |
0.29 |
|
|
Note: NSR: 'No Significant Result'. True width of mineralization is estimated to be approximately two-thirds of downhole length, assuming primarily steeply dipping vein-hosted mineralization intersected by inclined (-60° dip) drill holes. Assays >1 g/t Au in bold; drill holes highlighted in this release are shaded. |
Table 2 São Jorge RC drill hole collar location coordinates (as of
|
Hole Number |
Easting |
Northing Metres |
Elevation |
Dip (°) |
Azimuth (°) |
Depth |
Status |
|
SJRC-001-25 |
653891 |
9282977 |
199.57 |
-60 |
180 |
40 |
Results Received |
|
SJRC-002-25 |
653893 |
9282926 |
205.33 |
-60 |
180 |
30 |
Results Received |
|
SJRC-003-25 |
654099 |
9282889 |
196.39 |
-60 |
180 |
25 |
Results Received |
|
SJRC-004-25 |
654258 |
9282949 |
198.09 |
-60 |
180 |
30 |
Results Received |
|
SJRC-005-25 |
653894 |
9282789 |
200.33 |
-60 |
360 |
25 |
Results Received |
|
SJRC-006-25 |
654098 |
9282786 |
223.67 |
-60 |
360 |
30 |
Results Received |
|
SJRC-007-25 |
654271 |
9282741 |
216.01 |
-60 |
360 |
25 |
Results Received |
|
SJRC-008-25 |
653486 |
9283739 |
247.26 |
-60 |
360 |
15 |
Results Received |
|
SJRC-009-25 |
653490 |
9283841 |
247.47 |
-60 |
360 |
21 |
Results Received |
|
SJRC-010-25 |
653688 |
9283855 |
241.80 |
-60 |
360 |
25 |
Results Received |
|
SJRC-011-25 |
653683 |
9283940 |
227.63 |
-60 |
360 |
30 |
Results Received |
|
SJRC-012-25 |
653689 |
9284042 |
236.42 |
-60 |
360 |
25 |
Results Received |
|
SJRC-013-25 |
653918 |
9283957 |
239.75 |
-60 |
360 |
30 |
Results Received |
|
SJRC-014-25 |
653903 |
9284037 |
239.93 |
-60 |
360 |
25 |
Results Received |
|
SJRC-015-25 |
653882 |
9284141 |
191.36 |
-60 |
360 |
25 |
Results Received |
|
SJRC-016-25 |
652641 |
9282394 |
191.36 |
-60 |
150 |
30 |
Results Received |
|
SJRC-016B-25 |
652641 |
9282394 |
190.07 |
-60 |
330 |
30 |
Results Received |
|
SJRC-017-25 |
652698 |
9282469 |
192.36 |
-60 |
150 |
30 |
Results Received |
|
SJRC-018-25 |
652728 |
9282565 |
190.55 |
-60 |
150 |
30 |
Results Received |
|
SJRC-019-25 |
652559 |
9282342 |
189.39 |
-60 |
130 |
18 |
Results Received |
|
SJRC-020-25 |
652486 |
9282288 |
187.20 |
-60 |
180 |
25 |
Results Received |
|
SJRC-021-25 |
652387 |
9282150 |
188.78 |
-60 |
180 |
21 |
Results Received |
|
SJRC-022-25 |
652301 |
9282197 |
189.17 |
-60 |
180 |
25 |
Results Received |
|
SJRC-023-25 |
652223 |
9282137 |
226.90 |
-60 |
180 |
25 |
Results Received |
|
SJRC-024-25 |
652129 |
9282110 |
188.33 |
-60 |
180 |
25 |
Results Received |
|
SJRC-025-25 |
652028 |
9282132 |
190.07 |
-60 |
180 |
25 |
Results Received |
|
SJRC-026-25 |
651930 |
9282116 |
186.76 |
-60 |
180 |
25 |
Results Received |
|
SJRC-027-25 |
651827 |
9282125 |
186.81 |
-60 |
180 |
26 |
Results Received |
|
SJRC-028-25 |
652802 |
9282206 |
192.68 |
-60 |
330 |
31 |
Results Received |
|
SJRC-029-25 |
652736 |
9282180 |
190.47 |
-60 |
330 |
21 |
Results Received |
|
SJRC-030-25 |
656200 |
9286496 |
219.02 |
-60 |
360 |
50 |
Results Received |
|
SJRC-031-25 |
656201 |
9286520 |
217.62 |
-60 |
360 |
50 |
Results Received |
|
SJRC-032-25 |
656200 |
9286545 |
216.43 |
-60 |
360 |
50 |
Results Received |
|
SJRC-033-25 |
656236 |
9286543 |
216.62 |
-60 |
360 |
70 |
Results Received |
|
SJRC-034-25 |
659993 |
9281950 |
227.79 |
-60 |
360 |
50 |
Results Received |
|
SJRC-035-25 |
659917 |
9281909 |
230.39 |
-60 |
330 |
50 |
Results Received |
|
SJRC-036-25 |
659900 |
9281940 |
229.68 |
-60 |
360 |
30 |
Results Received |
|
SJRC-037-25 |
659789 |
9281849 |
230.76 |
-60 |
330 |
50 |
Results Received |
|
SJRC-038-25 |
659693 |
9281802 |
229.05 |
-60 |
330 |
40 |
Results Received |
|
SJRC-039-25 |
658549 |
9281097 |
236.21 |
-60 |
45 |
30 |
Results Received |
|
SJRC-040-25 |
658596 |
9281155 |
231.24 |
-60 |
45 |
39 |
Results Received |
|
SJRC-041-25 |
658647 |
9281203 |
227.16 |
-60 |
45 |
33 |
Results Received |
|
SJRC-042-25 |
658724 |
9281148 |
223.86 |
-60 |
45 |
30 |
Results Received |
|
SJRC-043-25 |
658670 |
9281098 |
231.37 |
-60 |
45 |
30 |
Results Received |
|
SJRC-044-25 |
658616 |
9281042 |
234.90 |
-60 |
45 |
35 |
Results Received |
|
SJRC-045-25 |
656030 |
9284637 |
215.05 |
-60 |
360 |
51 |
Results Received |
|
SJRC-046-25 |
656018 |
9284612 |
215.71 |
-60 |
360 |
51 |
Results Received |
|
SJRC-047-25 |
656018 |
9284587 |
216.19 |
-60 |
360 |
60 |
Results Received |
|
SJRC-048-25 |
656015 |
9284560 |
216.31 |
-60 |
360 |
55 |
Results Received |
|
SJRC-049-25 |
656018 |
9284534 |
216.82 |
-60 |
360 |
55 |
Results Received |
|
SJRC-050-25 |
656014 |
9284511 |
216.55 |
-60 |
360 |
55 |
Results Received |
|
SJRC-051-25 |
656017 |
9284485 |
216.10 |
-60 |
360 |
39 |
Results Received |
|
SJRC-052-25 |
656792 |
9284197 |
216.70 |
-60 |
360 |
51 |
Results Received |
|
SJRC-053-25 |
656790 |
9284228 |
216.22 |
-60 |
360 |
51 |
Results Received |
|
SJRC-054-25 |
656794 |
9284247 |
215.94 |
-60 |
360 |
51 |
Results Received |
|
SJRC-055-25 |
656790 |
9284268 |
215.62 |
-60 |
360 |
51 |
Results Received |
|
SJRC-056-25 |
656789 |
9284298 |
215.15 |
-60 |
360 |
56 |
Results Received |
|
SJRC-057-25 |
656542 |
9284235 |
220.65 |
-60 |
360 |
60 |
Results Received |
|
SJRC-058-25 |
656542 |
9284213 |
221.22 |
-60 |
360 |
56 |
Results Received |
|
SJRC-059-25 |
656543 |
9284189 |
221.65 |
-60 |
360 |
60 |
Results Received |
|
SJRC-060-25 |
656543 |
9284165 |
222.68 |
-60 |
360 |
52 |
Results Received |
|
SJRC-061-25 |
656645 |
9284382 |
216.44 |
-60 |
360 |
60 |
Results Received |
|
SJRC-062-25 |
656642 |
9284363 |
216.13 |
-60 |
360 |
60 |
Results Received |
|
SJRC-063-25 |
656640 |
9284338 |
216.70 |
-60 |
360 |
60 |
Results Received |
|
SJRC-064-25 |
656641 |
9284311 |
217.90 |
-60 |
360 |
60 |
Results Received |
|
SJRC-065-25 |
658608 |
9281169 |
230.00 |
-60 |
45 |
50 |
Results Pending |
|
SJRC-066-25 |
658574 |
9281140 |
232.00 |
-60 |
45 |
50 |
Results Pending |
|
SJRC-067-25 |
658580 |
9281223 |
228.00 |
-60 |
45 |
47 |
Results Pending |
|
SJRC-068-25 |
658551 |
9281196 |
231.00 |
-60 |
45 |
50 |
Results Pending |
|
SJRC-069-25 |
658524 |
9281179 |
231.00 |
-60 |
45 |
52 |
Results Pending |
|
SJRC-070-25 |
658479 |
9281207 |
231.00 |
-60 |
45 |
50 |
Results Pending |
|
SJRC-071-25 |
658465 |
9281183 |
233.00 |
-60 |
45 |
50 |
Results Pending |
|
SJRC-072-25 |
658520 |
9281236 |
228.00 |
-60 |
45 |
50 |
Results Pending |
|
SJRC-073-25 |
658553 |
9281257 |
226.00 |
-60 |
45 |
50 |
Results Pending |
|
SJRC-074-25 |
658494 |
9281306 |
217.00 |
-60 |
45 |
48 |
Results Pending |
|
SJRC-075-25 |
658480 |
9281274 |
238.00 |
-60 |
45 |
53 |
Results Pending |
|
SJRC-076-25 |
658440 |
9281261 |
222.00 |
-60 |
45 |
50 |
Results Pending |
|
SJRC-077-25 |
654253 |
9282981 |
212.00 |
-60 |
180 |
50 |
Results Pending |
|
SJRC-078-25 |
654251 |
9282936 |
200.00 |
-60 |
180 |
62.5 |
Results Pending |
|
SJRC-079-25 |
654279 |
9282974 |
210.00 |
-60 |
180 |
50 |
Results Pending |
|
SJRC-080-25 |
654292 |
9282945 |
206.00 |
-60 |
180 |
50 |
Results Pending |
|
SJRC-081-25 |
654189 |
9282919 |
206.00 |
-60 |
180 |
50 |
Results Pending |
|
SJRC-082-25 |
654188 |
9282945 |
211.00 |
-60 |
180 |
61.5 |
Results Pending |
|
SJRC-083-25 |
654188 |
9282976 |
220.00 |
-60 |
180 |
51 |
Results Pending |
Data Verification
For drill core sampling, samples were taken from the NQ/HQ core by sawing the drill core in half, with one-half sent to SGS Geosol Laboratórios Ltda. ("SGS") in
SGS is a certified commercial laboratory located in Vespasiano,
Qualified Person
Visit www.goldmining.com for more information, including high-resolution figures, and to review the Technical Report titled "NI 43-101 Technical Report, São
About
Notice to Readers
Technical disclosure regarding
São Jorge
has been prepared by the Company in accordance with NI 43-101. NI 43-101 is a rule of the Canadian Securities Administrators which establishes standards for all public disclosure an issuer makes of scientific and technical information concerning mineral projects. These standards differ from the requirements of the
Cautionary Statement on Forward-looking Statements
Certain of the information contained in this news release constitutes "forward-looking information" and "forward-looking statements" within the meaning of applicable Canadian and
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