Calidus Resources Limited reported assay results from the recently-completed Definitive Feasibility Study (DFS) drilling program at the Blue Spec Project in WA's Pilbara. Results include: 4.1m @ 33.6g/t Au from 194.9m (21BSDD005) incl. 2.2m @ 60.4g/t Au and incl. 1.1m @ 100.7g/t Au from 196m; 2.55m @ 44.1g/t Au from 413.25m (21BSDD002) incl. 1.9m @ 58.5g/t Au; and 3.1m @20.4g/t Au from 449.9m (BSDD001) incl. 2.1m @ 28.4 g/t Au. Blue Spec is 75km from Calidus' Warrawoona project, where construction is well advanced and first gold production is expected in the June quarter of next year. Calidus aims to start development of Blue Spec once steady-state production is achieved at Warrawoona. Blue Spec is anticipated to increase annual production at Warrawoona to 130,000oz when in full production. Calidus Managing Director Dave Reeves said the four diamond holes would form an important part of the Blue Spec Feasibility Study. Metallurgy Test Work and Processing Plant Design: The four diamond holes drilled at Blue Spec will be utilised for confirmatory Metallurgy test work which is underway. This test work will complement the extensive metallurgical testwork completed on the Project by previous owners. Calidus intends on pursuing an extraction strategy of flotation and then using cyanidation of the flotation tails through the main 2.4Mtpa CIL Processing Plant to maximise recovery. GR Engineering Services Ltd. (GRES) and Bureau Veritas (BV) are being used for the engineering and laboratory test work respectively, who are the same groups utilised for the Warrawoona Gold Project DFS. Calidus is contemplating a small modular standalone sulphide float plant located at Warrawoona which can be utilised to treat Blue Spec as well as the high-grade Copenhagen deposit at Warrawoona. The sulphide float plant was included in the DFS for the Warrawoona Gold Project and is separate to the 2.4Mtpa CIL plant currently under construction. The rationale for installing the sulphide float at Warrawoona is that it will enable the opportunity to recover additional gold by cyanide leaching of the floatation tailings through the main CIL plant as well as leveraging off the infrastructure and personnel based at Warrawoona. A central regional production hub at Warrawoona also provides further opportunity with regards to other potentially stranded assets in the region that do not have the scale to justify a standalone plant. Calidus plans to produce a high-grade Antinomy-Gold Concentrate from Blue Spec. Calidus has received indicative non-binding terms from a number of groups for the Antinomy-Gold Concentrate. The terms were in line with previous Net Smelter Return (NSR) assumptions used for the Blue Spec Integration Study released to the ASX in March 2021. Mineral Resource Estimate and Mining Studies: The results from the four diamond holes will be used to update the Mineral Resource Estimate (MRE) for Blue Spec. Geotechnical logging of the holes was also completed with preliminary advice received from the Geotechnical Consultant which was also in line with expectations. Cut-off grades are calculated using a NSR of the Antinomy-Gold Concentrate. A key driver for the Blue Spec Project is to fund its development out of operating cash flow from Warrawoona operations. As such, Calidus will consider options to de-risk the execution such as the incorporation of underground dedicated diamond drill drives to drill out the inferred portion of the resource at depth and factoring this into the life of mine schedule. Project Permitting: Calidus has commissioned all base line environmental studies required for Project Permitting. These will be completed in the December and March Quarter of 2021 and 2022 respectively and will allow for timely submission of the Mining Proposal and Mine Closure Plan by the end of the March Quarter in 2022.