Wiluna Mining Corporation Limited announced further results from the Company's Discovery, Resource Development and Grade Control programs that have delivered high-grade sulphide intersections around current mining areas and new targets across the Wiluna Mining Operation. This release covers drilling completed to May 2022, at which point drilling paused. Two rigs will mobilise to site in mid-July for Resource Development and Grade Control programs to recommence. DISCOVERY PROGRAM: The Company's Discovery Drilling campaign covers nine large-scale targets testing for high-grade sulphide shoots "under the headframe" at Wiluna. High-grade shoot discoveries are targeted to increase the underground ore grade and grow gold production at Wiluna. The Company is targeting analogues to historically mined shoots, such as the Bulletin shoot that historically produced approximately 800,000oz @ 8g/t. The nine priority targets are located in the upper 600m on both the East and West structures, and below the major historical production areas. Targets are defined where mineralisation remains open along strike, down dip and on parallel structures. Sulphide shoots are interpreted to have formed in a predictable pattern controlled by
steeply south-plunging shoot corridors in conjunction with north-plunging trends and rock unit boundaries. East & West Lower Drilling at the East & West Lower target has intersected high-grade sulphides in the first hole in the East Lode position 200m below the current Mineral Resource limits, returning 9.40m @ 4.87g/t including 6.60m @ 6.22g/t, and in the West Lode position 400m below the current Mineral Resource limits returning 1.80m @ 9.74g/t. Latest assays received from the second hole have demonstrated lode continuity approximately 150m further down-dip of the first hole, with results including 4.60m @ 2.52g/t including 0.70m @ 8.82g/t and 1.70m @ 3.86g/t in the East Lode position. These results demonstrate continuity of the sulphide lodes to considerable depths below the limits of previous mining and drilling. Bulletin North: At Bulletin North, drilling has intersected high-grade sulphides in a new sulphide zone returning 5.00m @ 4.97g/t including 2.60m @ 8.24g/t, and 5.70m @ 2.85g/t including 0.40m @ 12.65g/t. These latest intercepts are highly
encouraging in confirming extensions to high-grade mineralisation beyond the current Mineral Resource limits and may represent a continuation of the Squib structure parallel to Bulletin. The primary target of the current program is of similar scale to the Bulletin Main shoot, which produced 800koz @ 8g/t, in a 100m x 500m target area that has never been fully tested despite the large-scale, high-grade past production from the adjacent Bulletin zone. Resource Development drilling at Woodley, located along strike to the south of Bulletin zone, has successfully demonstrated continuity of high-grade sulphides largely beyond the current Mineral Resource limits. Mineralisation is located at shallow levels, approximately 500m below surface, and close to the existing Woodley Decline for ease of access. GRADE CONTROL: Grade control drilling continues to confirm high grade sulphide mineralisation in areas within the current twelve month mine schedule at both Happy Jack and Bulletin zones, with extensions to mineralisation also defined. Bulletin Mine Area: At Bulletin, drilling within the upper northern area of the mine continues to return high-grade sulphide intervals
within planned stope areas and has also highlighted the potential for a footwall lode. Currently the high-grade footwall lode has been intersected in holes covering a 100m strike length and appears
to be open along strike, north and south and at depth. Happy Jack Mine Area Drilling at Happy Jack has been completed in both the northern and central areas of the mine. Drilling at Happy Jack North returned several higher-grade intervals which are expected to improve the overall stope grades
being mined between the 1400-1300 Levels. More recently, drilling targeting the lesser drilled areas between the Happy Jack North and South mine areas, Happy Jack Central, has returned several wide, high-grade intersections that will extend and improve existing planned stoping areas. It is thought that mineralisation in this area could be continuous, potentially linking the Happy Jack North and Happy Jack South mine areas.