Gold Basin Resources Corporation report on its column leach Metallurgical Testwork conducted by Kappes Cassiday & Associates in Reno, Nevada between December 2021 and May 2022 on diamond core samples from the Cyclopic area of its 100%-owned Gold Basin project in Mohave County, Northern Arizona, USA. Gold extractions up to 80% on Cyclopic diamond core composite samples Gold extractions between 50 and 70% after 7 days in leach Agglomeration and compaction tests showed all agglomerated samples passed percolation tests up to 100 metres dump height Gold Basin mineralisation extremely low in preg-robbing soluates and less than 0.61% total carbon in the material All results show low reagent consumption in leach All results indicate Gold Basin mineralisation is a rapid leaching material with low preg-robbing characteristics that when agglomerated passes industry criteria for flow rates for dump heights up to 100 metres. Further to the Company's positive initial Bottle Roll leach testwork completed in late 2021 further metallurgical studies have been undertaken in order to determine additional parameters on the heap leach suitability of the Gold Basin mineralisation.

As preparation for these studies the Company drilled four PQ core diamond drillholes at 200 metres intervals along strike at the Cyclopic deposit during the 2021 resource drilling program. This drillhole interval sequence and depth of hole was determined to provide a sufficiently representative mineralised samples for the planned testwork. The core samples were delivered to KCA's laboratory facilities in Reno, Nevada on the 6 th December 2021 and the metallurgical program of work was undertaken between December 2021 and May 2022 included column leach and agglomeration /compaction testwork as well as some additional bottle roll tests.

In order to evaluate the relative effects on gold extraction both conventional crushing and High Pressure grinding roll crushing methodology was used to prepare the diamond core material for the column leach and agglomeration tests. Under reagent in the column leach all samples showed a rapid extraction response to the reagent solution with gold recoveries between 52% and 70% being achieved after only 7 days of leaching. Each sample was progressed to where the leaching had effectively plataued and provided: 1. Column leach gold extractions of 75% and 71% on conventional crushed composite samples after 72 days of leach period: 2. HPGR crushing resulted in an increased gold extractions of 80% and 78% after 67 days of leach Preliminary agglomeration and compacted permeability test work was conducted on portions of the conventionally crushed material and HPGR crushed material from each composite sample.

The purpose of the percolation tests was to examine the permeability of the material under various cement agglomeration levels that had no cement addition. The purpose of the compacted permeability test work was to examine the permeability of the crushed material, agglomerated at various cement levels, under compaction loading equivalent to heap heights of 20 and 100 metres of overall heap height. Both the conventional crushed material and the HPGR crushed product for Composite #1, failed at an equivalent heap height of 100 meters due to low solution flow rate and/or excessive slump.

The HPGR crushed product for Composite #2, failed at an equivalent heap height of 100 metres due to low solution flow rate. KCA's general recommendations for heap leach dump heights are a maximum of 40m Shake tests were conducted on portions of the pulverized head material to provide preliminary indications of soluble metal extractions as part of the testwork process. In order to investigate the preg-robbing characteristics of the Cyclopic material additional shake testing was conducted.

For these preg-robbing tests, pulverized portions of head material were leached by the same method as the initial shake tests with the addition of a known quantity of gold in solution. Preg-robbing tendency was then determined by comparing the spiked shake test extraction and the original shake test extraction with the gold spike . Preg-rob% = 100% ­ /×100% If the spiked shake test extraction was lower than the shake test + spike more than 10%, the shake was considered preg-robbing.

Differences less than 10% were Differences less than 10% were attributed to variations in the material. In addition to preg-robbing tests a number of additional Head analyses were carried out which included analyses for multi-element, mercury and copper, carbon and sulphur.