Great Boulder Resources provided assay results from the first phase of RC drilling at the Mulga Bill prospect, within the Side Well Gold Project ("Side Well") near Meekatharra in Western Australia. These results are standard fire assays including samples from hole 23MBRC006A which were initially assayed using the Photon assay technique, as announced on March 7, 2023. The 2023 Phase 1 RC program at Mulga Bill comprised 13 holes for 3,393m, testing positions within the Central and HGV zones.

Samples from the two intersections of visible gold in 23MBRC006A were initially assayed using the ChrysosTM Photon assay technique and subsequently re-assayed using the Company's standard fire assay technique. The current AC drilling campaign is expected to conclude in approximately two weeks' time, after which an RC rig will return to site in the second week of April to commence follow-up drilling at Mulga Bill and Ironbark. The Company is currently finalising timing for an initial Aboriginal heritage survey at the Wellington project, located approximately 500km east of the Side Well Project in the Earaheedy Basin.

The heritage survey is expected to be followed by a wide-spaced soil geochemistry program. GBR was originally planning to conduct heritage monitoring and soil sampling concurrently, however these activities will now be completed separately. Once geochemical data from the soil program has been received and assessed the Company will confirm the next steps for Wellington, including the option of an aerial Falcon gravity survey.