GoldMining Inc.

Table 11‑1 Certified Reference Material

Three standards were used in the La Garrucha drilling (Table 11‑1) distributed randomly. The away results were consistent with expected results for both gold and copper. Out of 47 measurements, none fell outside of the allowable 3 standard deviations for Au or Cu.

Using 2 standard deviations departure from the accepted value as a benchmark, only 1 Au determination (see Figure 11‑47), and nil Cu determinations, were outside an acceptable range.

Figure 11‑45 Reference Material BH12002X Performance for Au

Figure 11‑46 Reference Material BH12002X Performance for Cu

Figure 11‑47 Reference Material BH12003X Performance for Au

Figure 11‑48 Reference Material BH12003X Performance for Cu

Figure 11‑49 Reference Material BH12004X Performance for Au

Figure 11‑50 Reference Material BH12004X Performance for Cu

Two blank standards were used in the GoldMining La Garrucha 2022 drilling, a certified reference material (“CRM”) gold blank and a second blank derived from core drilled at another GMI project.

CRM blank BH12001X was inserted 26 times across the five drillholes completed, see Figure 11‑51 and Figure 11‑52. The gold results were very good, with no samples exceeding the 3 rd standard deviation line. Copper also performed well with no samples falling outside of the 3 rd standard deviation.

Figure 11‑51 Reference Material - Blank BH12001X Performance for Au

Figure 11‑52 Reference Material - Blank BH12001X Performance for Cu

The core blank performed well for Au with only one sample exceeding the 5.0 ppb detection limit, and the majority of samples assaying less than detection and thus recorded as 2.5 ppb Au. Copper demonstrated relatively uniform performance, however as a core sample from another GMI project it has a naturally high Cu background and returned values between 60 ppm - 80 ppm Cu. See Figure 11‑53 and Figure 11‑54.