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GoldMining Inc.

For the period ended Oct 31, 2026. Filed Oct 6, 2026.

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Oct 31, 2026 · Filed Oct 6, 2026

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GLDG$0.78+4.1%Stored close · as of Nov 6, 2026
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EX-99.1 · Notes:

Notes:

1.Reported intervals are downhole core lengths. True width is estimated to be approximately 50% of downhole interval length based on current geological interpretation of sub-vertical P-1 intrusive phase contact orientations.
2.Gold Equivalent (AuEq) is calculated using the formula: AuEq (g/t) = Au (g/t) + [Cu (%) x {Cu Price/Au Price} x 22.0462 x 31.1035] + [Ag (g/t) x {Ag Price/Au Price}]. Assumed metal prices: US$3,550/oz Au, US$5.00/lb Cu and US$50/oz Ag. Metallurgical recoveries are assumed at 100% for the purpose of conceptual equivalence pending definitive metallurgical test work; actual recoveries may be lower.
3.Cut-off grade applied for the entire drill hole composite interval (from surface to 399.9 m EOH) is 0.10 g/t AuEq with a maximum internal dilution of 5.0 consecutive metres. The additional composite intercepts are reported above a cut-off grade of 0.30 g/t AuEq with a maximum internal dilution of 3.0 consecutive metres.

Table 2 Yarumalito drill hole collar location coordinates and status (as of October 6, 2026).

Hole IDEasting (m)1Northing (m) 1Elevation (m)Dip (°)Azimuth (°)Total Depth (m)Status
YAR-451,160,6461,108,8311,939-57195399.9Reported
YAR-461,160,6471,108,8321,939-65276251.2Assays Pending
YAR-471,160,4861,108,7281,949-49135263.25Assays Pending
YAR-481,160,2411,108,7511,933-51215304.1Assays Pending

1: Bogotá* 1975 / Colombia West Zone (EPSG:21892)*

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