Catalyst Metals Limited and Navarre Minerals Limited announced final results from a 60 hole, 6,764 metre Air Core drilling program on the Macnaughtan and Lawry prospects and an 11 hole, 3,800 metre Diamond/Reverse Circulation (RC) drilling programme at Macnaughtan and Tomorrow prospects at the Tandarra Gold Project. Drilling activities have ended for the 2021 field season and will resume in December 2021 /January 2022 after crops have been harvested. The Tandarra Gold Project is situated along the Whitelaw Fault, extending northwards and concealed beneath a blanket of younger, post-mineralisation sediments of the Murray Basin.

All drilling programs are located within Retention Licence RL006660, located 40 kilometres north of the Bendigo Goldfield in Victoria and owned in Joint Venture (JV) by Catalyst (51%) and Navarre (49%), with Catalyst as manager of the JV. The northernmost and final Air Core traverse of the drilling program at Macnaughtan has returned highly encouraging results, continuing the gold trend 100 metres further north from the earlier results as reported to the ASX on 15th April 2021 (11m @ 0.91g/t Au from 71m in TNA044). The best gold mineralisation was in Hole TNA050 which contained two significant intersections: 9 metres @ 14.8g/t Au including 1 metre @ 112g/t Au from 106 metres, 10 metres @ 1.7g/t Au from 119 metres,100 metres further west on the same line hole TNA048 returned: 4 metres @ 1.0g/t Au from 62 metres.

A nine-hole program of Diamond drilling and deep RC drilling was completed, testing depth extensions of the Tomorrow zone for up to 500 metres below surface. Significant quartz-sulphide fault zones intersected at depths of approximately 180 metres confirmed the known main west-dipping Tomorrow fault and returned best intercepts of 2.55 metres @ 2.5g/t Au from 177.7 metres in TND003 and 3 metres @ 13.8g/t Au from 202 metres in TNR004. New fault structures, interpreted to be depth repetitions of the Tomorrow main fault structure, were intersected at depths of approximately 450 metres in diamond holes TND003 and TND004.

Gold values were low but the presence of fault repetitions at depth warrants further exploration by geophysics and drilling. The Macnaughtan line of gold mineralisation was scheduled for twelve drill traverses spaced 50 to 200 metres apart, over 1,000 metres of strike length. Assay results to hand confirm extensive gold bearing quartz reef development in the central area, with best results within a 400 metre long zone from 5,971,200N to 5,971,600N.

The current programme has closed the drill spacing to 50 x 50 metre centres in this central target area. Further exploration will focus on two gold targets at Macnaughtan:The Tomorrow-style zone on the eastern limb of the Macnaughtan anticline, where west-dipping structures intersect and disrupt bedding at a high angle in the east limb. Strike extensions to the north of hole TNA050 persist for about 2,500 metres, where the system is likely to break surface due to the shallow southerly plunge of the system.

This strike interval has been tested sparsely on 100 ­ 250 metre drill traverses. Geophysics and infill drilling is proposed to evaluate this trend as soon as access allows. Diamond holes TND003-TND006, RC holes TNR001-TNR005 and Diamond tail TNR001 were completed in April, targeting repetitions of fault structures at depth below the main Tomorrow zone TND003 was drilled beneath well-developed mineralisation in historical hole DDT015 and showed good correlation, intersecting 2.89 metres @ 1.59g/t Au from 158 metres and 2.55 metres @ 3.48g/t Au from 177 metres, confirming the position of the upper west-dipping fault.

The deeper target was intersected at about 450 metres downhole, demonstrating repetition at depth in the mineralised system albeit with less alteration and lower gold values. The confirmation of fault repetition is very important to the prospectivity of the tenement, as such depth potential is vital to the mining feasibility. Assays are still not received for diamond hole TND006 which tested potential feeder structures on the western limb of the Tomorrow anticline.

The deep RC drilling program experienced problems due to the difficulty of casing off the sediments and groundwater of the Murray Basin cover, resulting in ingresses of water, limiting the depth of RC penetration. As a result, the deeper structural targets were not tested, however, five holes were completed for 722 metres testing the upper mineralised zones. Hole TNR004 was drilled on an infill line 50 metres north of the well-mineralised Diamond drill hole DDT015 and intersected well-developed quartz veins with accessory pyrite and arsenopyrite in the upper target zone from 167 metres to end-of-hole at 205 metres.

Within this zone were three gold-bearing zones with a best of intercept of 3 metres @ 13.8g/t Au from 202 metres to the end of RC drilling. Excessive water flows prevented the RC drilling achieving planned depth, so a diamond tail is planned for the next drilling season.