GoldMining Inc. announced additional assay results from the previously announced drilling program at the Company's 100% owned São Jorge Project ("São Jorge" or the "Project") in the Tapajós gold district ("Tapajós"), Pará State, Brazil. The diamond core drilling component of the program, which is now complete, consisted of 1,077 metres ("m"). The objectives of the program included confirmatory drilling within and near the margins of the existing São Jorge gold deposit (the "Deposit"), as well as exploratory drilling approximately one kilometre away from known mineralization in an area with no previous drilling.

Assay results for two additional diamond drill holes (SJD-121-24 and SJD-122-24) have been received, which combined with the previously released hole, SJD- 120-24, have successfully completed the confirmatory component of drilling within and near the margins of the Deposit. São Jorge lies within the active and rapidly developing Tapajós Gold District, which is estimated to have produced over 20 million ounces of gold historically from artisanal mining of surface deposits, according to the Brazil National Mining Agency. The Tapajós is home to Serabi Gold Plc.'s producing high- grade underground Palito Mine and G Mining Ventures Corp.'s ("G Mining") brand new Tocantinzinho open pit mine, which recently commenced commissioning of its processing facility.

São Jorge is located immediately adjacent to paved Hwy BR-163 and a new 138 kV powerline corridor, which ties into the district electrical grid recently constructed for Tocantinzinho. Exploration activities at São Jorge are operated from a permanent camp near the existing Deposit and just 3 kilometres from the highway. The Company commenced drilling at São Jorge in May 2024 and released results of the first confirmatory drill hole SJD- 120-24 with an interval of 163 m at 1.02 g/t Au, including 37 m at 2.26 g/t Au.

Mineralization comprises fracture-controlled sulphide ± quartz veins, with the sulphides consisting of dominant pyrite with lesser chalcopyrite, along metre-scale northwest-southeast striking shear zones hosted within monzogranite and along a sheared footwall contact between monzogranite and syenogranite, which cumulatively defines the São Jorge high-strain corridor. Pyrite occurs as hairline stringers, disseminated grains and semi-massive pyrite in 3 ­ 5 cm thick veins. Higher gold grades are related to a higher abundance of sulphide minerals, particularly thicker veins, and/or a higher density of semi-massive to massive pyrite veins.

SJD-121-24 and SJD-122-24 provided additional infill drilling in the western portion of the Deposit to support potential future resource interpolation and classification. Drilling intersected multiple zones of mineralization hosted within the São Jorge high-strain corridor. SJD-122-24 demonstrated strong mineralization directly along strike of the main Deposit.

SJD-121-24 intersected several zones of mineralization north of the established Deposit strike direction, representing possible en echelon northwest stepping of mineralized structures within a large low-grade envelope associated with the broader São Jorge high-strain corridor. See Tables 1 and 2 below for further information regarding the drilling. For this drill core sampling program, 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 Brazil for assaying, and the other half of the core retained at the site for future reference. Sample lengths downhole were uniformly 1.0 m. SGS is a certified commercial laboratory in Vespasiano, Minas Gerais, Brazil, and is independent of GoldMining. GoldMining has implemented a quality assurance and quality control program for the sampling and analysis of drill core, including duplicates, mineralized standards and blank samples for each batch of 100 samples.

The gold analyses were completed by FAA505 method (fire-assay with an atomic absorption finish on 50 grams of material).