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RAMELIUS RESOURCES LIMITED — Capital/Financing Update 2017
Apr 3, 2017
65718_rns_2017-04-03_1265f310-1349-434f-beac-1f520e1c7672.pdf
Capital/Financing Update
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04 April 2017 For Immediate Release
New Ore Reserves at Vivien and Mt Magnet & Exploration Update
HIGHLIGHTS
Ramelius Resources Limited ( ASX:RMS ) is pleased to announce that new Ore Reserves have been generated at both the Vivien and Mt Magnet operations in Western Australia (refer Figure 1), that will result in a revised life-of-mine plan being compiled within the next month. In addition, several exploration drill results have been received at the Mt Magnet operation as reported below.
VIVIEN UNDERGROUND MINE (WA)
Vivien Ore Reserves
Based upon the updated Mineral Resource of 854,000 tonnes at 7.2g/t for 198,000 ounces as at 31 December 2016 (see ASX Release, “December 2016 Quarterly Activities Report”, 31 January 2017), a new Ore Reserve totalling 525,000 tonnes @ 7.3 g/t for 123,000 ounces has been generated for the Vivien mine (refer Table 1) extending mine life to at least late 2019.
Underground diamond drilling for deeper extensions will be ready to commence in late-April 2017, with further mine development work carried out below the completed 247mRL Drill Drive to ensure all necessary escape way and ventilation requirements are met (refer Figure 3).
MT MAGNET (WA)
Stellar, Stellar West, Brown Hill, Vegas & Shannon Ore Reserves
New Ore Reserves totalling 1,682,000 tonnes @ 1.7 g/t for 94,000 ounces of gold has been generated for the Stellar, Stellar West, Brown Hill, Vegas & Shannon deposits (refer Table 3). These deposits are included in a multi-pit mining proposal, which also includes the Milky Way open pit (78,000 ounces) , that has been submitted to the DMP for approval (refer Figure 2).
Morning Star base of pit RC drilling
Infill RC drilling targeting the Star western limb and Evening Star BIF hosted zones from the base of the pit (13 holes), returned excellent results with best intercepts of:
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41m at 1.95 g/t Au from 11m in GXRC0536
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20m at 4.20 g/t Au from 24m in GXRC0540
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34m at 6.62 g/t Au from 11m in GXRC0542
Morning Star & Black Cat South open pit RC drilling
Infill RC drilling targeting the saddle between the Morning Star and Black Cat South open pits, located 2km south of the processing plant (45 holes), has continued with better results received since the last market update including:
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7m at 3.25 g/t Au from 109m in GXRC1540
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7m at 4.06 g/t Au from 209m in GXRC1541
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2m at 21.14 g/t Au from 63m in GXRC1564 and
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3m at 15.95 g/t Au from 119m in GXRC1578, incl. 1m at 46.2 g/t Au
Resource modelling for the Morning Star open pit area, including the Black Cat South and Eddie Carson areas, is in progress and nearing completion (refer Figure 6).
Morning Star Upper RC drilling
Infill RC drilling following up the 10m @ 6.56 g/t from 290m in GXRC1464 (previously reported), located approximately 400mbs and 80m north from the existing Morning Star decline with a series of seven deeper RC holes over 300m strike has been completed. Strong shearing and sericite alteration was observed in the preferred felsic porphyry host over at least 100m strike. Assay results are awaited.
Morning Star Deeps diamond drilling
Diamond drilling following up the historic drill hole MSD0044 (previously reported), located approximately 1,200mbs, has commenced with 3 wedges completed to date. Best results include:
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4.90m at 26.49 g/t Au from 1,277.30m in MSD0056C
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4.80m at 4.70 g/t Au from 1,293.00m in MSD0056C
Diamond drilling is continuing.
Paris open pit RC drilling
Six RC holes targeting the southern extension of the small Paris deposit (refer Figure 2) have shown potential with best results of:
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22m at 5.85 g/t Au from 31m in GXRC0530, incl. 7m at 13.05 g/t Au
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22m at 1.77 g/t Au from 25m in GXRC0533
Zeus Prospect RC drilling
Exploration drilling adjacent to the Stellar West deposit has delineated significant gold mineralisation along the western flank of the Zeus Porphyry contact (Refer Figure 11). Previous RC drilling along the porphyry / ultramafic contact (GXRC1492) returned an intersection of 8m at 12.20 g/t Au from 65m to end of hole. This intersection appears to correlate with significant Aircore drill results, up to 19m at 1.31 g/t Au from 32m located 140m further north. Subsequent deeper RC drilling (7 holes) confirmed this with better infill results including:
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15m at 4.10 g/t Au from 103m in GXRC1543, incl. 10m at 5.83 g/t Au and
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20m at 1.84 g/t Au from 62m in GXRC1544
Exploration and Resource Development drilling is continuing throughout the Mt Magnet project leases.
For further information contact:
Mark Zeptner Managing Director Ramelius Resources Limited Ph: +61 8 9202 1127
Duncan Gordon Executive Director Adelaide Equity Partners Ph: +61 404 006 444
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ABOUT RAMELIUS
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Figure 1: Ramelius’ Operations & Development Project Locations
Ramelius owns 100% of the Mt Magnet gold mine and associated processing plant located in the Murchison region of Western Australia. The Company is mining underground at the high-grade Vivien gold mine near Leinster, in addition to open pit mining at Mt Magnet and Blackmans, 30km north of Mt Magnet.
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Figure 2: Mt Magnet gold camp key project locations
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RESOURCE DEVELOPMENT
Vivien Ore Reserve
Based on the updated Vivien Resource estimate (see ASX Release ‘December 2016 Quarterly Activities Report’, 31 Jan 2017), a new Ore Reserve has been generated in March 2017:
Table 1: Vivien Ore Reserve at 31 Dec 2016
| Category | Tonnes g/t Ounces |
|---|---|
| Probable | 525,000 7.3 123,000 |
Note: Figures rounded to nearest 1,000 tonnes, 0.1g/t and 1,000 ounces. Rounding errors may occur.
The new figure represents a sizeable increase on the feasibility study Ore Reserve of 400,000 tonnes @ 7.9 g/t for 101,000 ounces, considering production of 32,410 ounces has been achieved by end of December 2016 and depleted from resources. Mine life will be extended to at least late 2019 and project NPV is boosted substantially.
Underground diamond drilling for deeper extensions will be ready to commence in late-April 2017, with further mine development work carried out below the completed 247mRL Drill Drive to ensure all necessary escape way and ventilation requirements are met.
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Figure 3: Vivien long section, showing revised Ore Reserve and planned drilling
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Ore Reserve Commentary
The Vivien deposit is a high-grade, quartz vein hosted lode deposit. It is steeply dipping (70°) and contains higher grade shoots which plunge shallowly to the north-east. The vein is typically between 2 and 6 metres wide. Underground mining commenced in mid-2015 and ore production commenced in early 2016. Mining comprises of conventional decline access, level development and long-hole stoping. Cemented rock fill sill and rib pillars are now being utilised to improve total extraction. Appropriate dilution and recovery factors are applied and vary for free versus remote bogging, lode width, etc. Cutoffs of 4.5g/t (development) and 3.9g/t (marginal stoping) are applied. Costs, metallurgical recovery and all other relevant criteria is well established. Reconciled mill production to 31 December 2016 is 104,078 tonnes @ 7.40 g/t for 24,766 ounces. Detailed information is given in Appendix A attached below.
Stellar, Stellar West, Brown Hill, Vegas & Shannon Resources & Reserves (Mt Magnet)
Using recently updated Mineral Resource models, new Ore Reserves were generated in March 2017.
Table 2: Mineral Resources
| Deposit | Indicated Tonnes g/t Ounces |
Inferred Tonnes g/t Ounces |
Total Tonnes g/t Ounces |
|---|---|---|---|
| Brown Hill Vegas Shannon |
1,131,000 1.7 61,000 644,000 1.4 28,000 249,000 3.3 27,000 |
486,000 1.2 19,000 98,000 1.2 4,000 81,000 3.9 10,000 |
1,617,000 1.5 80,000 742,000 1.3 32,000 330,000 3.5 37,000 |
| Total | 2,024,000 1.8 116,000 |
665,000 1.5 33,000 |
2,689,000 1.7 149,000 |
Note: Figures rounded to nearest 1,000 tonnes, 0.1g/t and 1,000 ounces. Rounding errors may occur. Mineral Resources are inclusive of Reserves
Mineral Resource Commentary
New RC drilling was conducted at each of the deposits and is combined with significant historic drilling. Drill spacing ranges from a 10m x 12.5m to a 25m x 30m hole spacing. Drilling used a 5.5” face sampling bit and 1m sample collection via a cone splitter. Interpretation was carried out on 10m or 12.5m spaced sections utilising appropriate geological and weathering interpretations. Brown Hill and Vegas are part of the Galaxy mining area and are dominantly BIF hosted, sub-vertical lode zones.
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Figure 4: Vegas Deposit cross-section
Shannon is hosted by a quartz-veined, moderately dipping, shear zone within felsic intrusive units. RC sub-samples were assayed by Fire Assay at a Perth commercial laboratory. Appropriate QAQC samples accompanied primary sample batches. Samples were composited to 1m intervals, top-cut and grade was estimated using constrained ID method and interpreted anisotropic searches. Block size is typically 5m x 10m x 5m or of similar scale. Resource classification was applied based on drill hole density and interpreted mineralisation continuity. Resources were reported above a 0.7 g/t lower cut-off. Resources have been generated in-house for evaluation by open-pit mining methods and have a maximum depth of 200m. Density values are based on established Mt Magnet values. Detailed information is given in Appendix B attached below.
New Ore Reserves are:
Table 3: Ore Reserves (>0.7g/t)
| Pit | Category | Tonnes g/t Ounces |
|---|---|---|
| Brown Hill Vegas Stellar Stellar West Shannon |
Probable Probable Probable Probable Probable |
623,000 1.6 31,000 196,000 1.4 9,000 388,000 1.5 19,000 267,000 1.8 15,000 208,000 2.9 20,000 |
| Total 1,682,000 1.7 94,000 |
Note: Figures rounded to nearest 1,000 tonnes, 0.1g/t and 1,000 ounces. Rounding errors may occur.
Ore Reserve Commentary
Ore Reserves have been generated using updated Resource models which incorporate recent, new RC drilling, revised geotechnical parameters, hydrogeological and environmental studies. Reserves are based on Indicated Resources only. See ASX Release; ‘Exploration & Resource Development Drilling Update, 19 Dec 2016’ for Resource details for Stellar and Stellar West. Open pit optimisations and designs are based on current and forecast contractor mining rates. Milling and other ore costs are based on budgeted Mt Magnet costs. Mining incorporates appropriate dilution and recovery
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factors and volumes for backfill and/or waste dump removal. All pits, except for Stellar West, have been previously mined. A Mining Proposal incorporating these pits was submitted to the DMP in March 2017. Detailed information is given in Appendix B attached.
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Figure 5: Shannon topography, resource and new pit design. Truncated 3D view to North.
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AUSTRALIAN EXPLORATION
MT MAGNET GOLD MINE – WA (RAMELIUS 100%)
An aggregate of 15,548m of exploratory RC drilling (GXRC1531 – 1617) has been completed throughout Mt Magnet since January 2017. Further, Ramelius has completed 3,262m in Resource Development RC drilling within and below several historical open pits (GXRC0522 – 547) and 18,111m of Aircore drilling (GXAC0688-1002) in addition to two wedges (MSD0056B and C) off the 1,425m deep parent diamond drill hole (MSD0056A) targeting the Morning Star Deeps during the same period. See Attachments 1, 2, 3 and 4 for a complete listing of significant drill hole intersections referred to in this release.
Aircore drilling, RC drilling and the Morning Star Deeps diamond drilling are all scheduled to continue at Mt Magnet as the push to expand the Company’s Resource and Reserve base continues.
Morning Star In-pit Drilling / Black Cat South Open Pits
Infill RC drilling has targeted the base of the Morning Star pit (refer Figures 6 and 7), the saddle between the Morning Star pit and the Black Cat South pit, in addition to the Eddie Carson Lode and the Northern Ramp access at Morning Star. The RC drilling was aiming to delineate additional gold mineralisation associated with steep dipping shears within the basaltic flows and volcaniclastics that host the Morning Star Underground Lodes, the Eddie Carson Lodes, as well as the sub-vertical dipping Evening Star Chert that passes through the Black Cat South pit and beyond towards the small 25,000 ounce Bullocks resource further south. Encouragingly, broad zones of strike continuous gold mineralisation were intersected along the western limb of the Morning Star Lodes. Better results included 41m at 1.95 g/t Au from 11m and 20m at 4.20 g/t Au from 24m (refer Figure 7).
The drilling below the Black Cat South pit intersected multiple lode positions including a hangingwall porphyry dominated lode, the main Evening Star Chert Lode before truncating the chert. Variable footwall lode positions hosted by volcaniclastics including rare shale units (interpreted as facies variants to the Evening Star Chert) occur south of the Black Cat South pit towards Bullocks. A long section of the drilling results completed to date are presented in Figure 8.
Morning Star Upper
Deeper exploratory RC drilling was completed within 400m below surface, 80m north of the Morning Star portal. The drilling aimed to scope the potential for additional high grade lodes to be developed within the sheared felsic porphyry/volcaniclastic host rocks. A reconnaissance drill hole into the target (GXRC1464) had previously returned 10m @ 6.56 g/t from 290m. Extensive shearing and sericite alteration was observed in the current drilling and the assay results remain awaited.
Morning Star Deeps
Deep exploratory navigational diamond drilling commenced at the Morning Star Deeps in February 2017 with the aim of delineating resource extensions below the current limit of underground mining (980mbs) down to approximately 1,500mbs. Initially the drilling has target the interpreted high grade keel of the Morning Star deposit where previous deep diamond drilling confirmed the depth continuity of the high-grade gold mineralisation. Better historical (Hill 50 Gold NL - circa 1992) diamond drill results, from the deepest hole, included 16m at 9.05 g/t Au. Drilling completed to date has shown good continuity of the mineralisation at depth, albeit the higher-grade keel appears further to the west than originally predicted. Diamond wedges MSD0056A and B failed to intersect the high grade mineralisation but wedge MSD0056C intersected significant high grade gold mineralisation including 4.9m at 26.49 g/t Au from 1,277.30m.
The plunge of the high-grade shoots is depicted in Figure 9. The mineralised keel intersections sit along the folded contact between basaltic flows and andesitic tuffs and is annotated as “KL” in Attachment 3. Younging indicators suggest the rocks are overturned, hence hangingwall lodes are annotated “U1”, “U2” and “U3” as they lie above the contact in the overlying (older) basaltic flows whilst footwall lodes are annotated “L1”, “L2” and “L3” as they lie below the contact in the underlying (younger) andesitic tuffs and flows. Diamond drilling is continuing.
Paris open pit
RC drilling was completed under the shallow Paris open pit located 1km south of Morning Star, half way towards the Water Tank Hill/St George portal. The mineralisation at Paris is hosted by banded iron formation, believed to be the strike extension of the Nathan BIF at Morning Star that extends southwards to Water Tank Hill/St George. Very
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encouraging gold intersections were encountered from this first pass test and additional step out drilling is planned (refer Figure 10). Better results include:
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22m at 5.85 g/t Au from 31m in GXRC0530, incl. 7m at 13.05 g/t Au
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22m at 1.77 g/t Au from 25m in GXRC0533
Zeus Prospect
Exploration drilling adjacent to the Stellar West deposit has delineated significant quartz vein hosted gold mineralisation along the western flank of the Zeus Porphyry (refer Figure 11). The abundance of quartz veining can often indicate healing of early (possibly D1 thrusts) gold mineralised structures as highlighted in the Stellar open pit. A single RC drill hole (GXRC1492) returned a highly encouraging intersection of 8m at 12.20 g/t Au from 65m to end of hole associated with the abundant quartz veining within altered porphyry on the contact with ultramafics. This intersection correlates well with the significant porphyry hosted Aircore drill results up to 19m at 1.31 g/t Au from 32m located 140m further north (refer Figure 12). Subsequent RC drilling has continued to show very encouraging intersections, including 15m at 4.10 g/t Au in GXRC1543 and 20m at 1.12 g/t Au from 70m in GXRC1542, within broader, anomalous, mineralised porphyry intervals up to 71m at 1.43 g/t Au from 54m in GXRC1543.
True widths remain undetermined at this stage given the multiple shear/lode orientations interpreted in the data to date. Infill RC and Aircore drilling is continuing.
Venus Prospect
Infill Aircore drilling down to 100 x 50m centres has enhanced the geochemical anomaly at Venus, located immediately south of the Boomer pit. Better 4m composite assay results include 12m at 0.85 g/t Au from surface in GXAC0795 and 41m at 0.54 g/t Au from 20m in GXAC0815. The anomalous geochemistry (0.1 – 0.5 g/t Au to bottom of hole) now defines a coherent north east trending corridor (interpreted to be the Latecomer Fault extension from Morning Star) over 700m and a north-west trend over 600m paralleling the western Boomer Porphyry contact, south of the small Golden Stream pit. Deeper RC drilling will target along the Latecomer Fault and the confluence of these trends in the June 2017 Quarter (refer Figure 13).
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Figure 6: Plan view over the Morning Star and Black Cat South pits highlighting long section traces, through Black Cat South (B – C) and the Morning Star Deeps (A – B’)
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Figure 7: Plan view of Morning Star Lodes around 150mbs below surface (20m below the base of the pit) highlighting good continuity of mineralisation between the Evening Star Chert and the as-mined Morning Star stopes
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Figure 8: Long section through Morning Star and Black Cat South pits highlighting Ramelius’ drill hole traces, including recent drilling into the saddle between the two pits
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Figure 9: Long section through A-B’ (see Figure 6 for location) through the Morning Star Deeps
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Figure 10: Cross section through Paris open pit drilling
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Figure 11: Overview map of the Boogardie Basin highlighting maximum downhole gold ppm from drilling. The gold geochemistry is overlying a 1VD-RTP aeromagnetic image and the mapped/interpreted extent of the felsic porphyry intrusions; as constrained by the magnetic data and drilling to date. Litho-structural corridors favourable for the ingress and deposition of significant gold mineralisation are now being highlighted. The confluence of structures and/or their intersection with buried porphyry contacts represent primary targets for shallow plunging ore shoots to be developed. This interpretive 3-D modelling is ongoing. The newly discovered Zeus Prospect (highlighted) is shown in the top left hand corner of this figure and now extends over 500m on or near the confluence of the NE trending shear and an inferred NNW trending thrust.
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Figure 12: Cross section through recent RC drilling at the Zeus Prospect
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Figure 13: Venus Prospect >0.5 g/t Au Aircore geochemical anomaly defining regional structural trends including Latecomer Fault
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Attachment 1: Resource Definition RC Drilling Results below the Paris, Morning Star and Shannon pits – Mt Magnet, WA
| Hole Id | Easting | Northing | Az/Dip | RL | F/Depth (m) |
From (m) | To (m) | Interval (m) |
g/t Au |
|---|---|---|---|---|---|---|---|---|---|
| GXRC0529 Paris Pit |
581301 | 6896253 | 299/-52 | 439 | 95 | 17 38 53 |
35 44 58 |
18 6 5 |
1.09 1.03 1.80 |
| GXRC0530 Paris Pit |
581305 | 6896251 | 300/-60 | 439 | 95 Incl. |
31 41 64 |
53 48 69 |
22 7 5 |
5.85 13.05 1.45 |
| GXRC0531 Paris Pit |
581297 | 6896242 | 300/-55 | 439 | 80 | 33 56 |
41 66 |
8 10 |
0.81 **1.92 ** |
| GXRC0532 Paris Pit |
581310 | 6896234 | 300/-55 | 439 | 90 | 44 76 |
53 81 |
9 5 |
1.00 0.94 |
| GXRC0533 ParisPit |
581292 | 6896231 | 300/-60 | 439 | 75 | 25 | 47 | 22 | 1.77 |
| GXRC0534 Paris Pit |
581303 | 6896225 | 300/-65 | 439 | 77 | 5 29 43 55 **62 ** |
9 36 47 59 66 |
4 7 4 4 4 |
0.94 0.97 0.93 1.06 3.48 |
| GXRC0535 MS Pit |
580877 | 6897387 | 140/-53 | 316 | 91 | 29 37 49 74 |
31 40 51 75 |
2 3 2 1 |
10.01 2.44 1.93 6.41 |
| GXRC0536 MS Pit |
580888 | 6897395 | 140/-53 | 316 | 100 | 5 11 72 |
8 52 74 |
3 41 2 |
0.84 1.95 2.75 |
| GXRC0537 MS Pit |
580897 | 6897400 | 085/-58 | 316 | 95 | 15 42 69 **84 ** |
20 63 77 95 |
5 21 8 11 |
0.98 3.05 0.56 3.41 |
| GXRC0538 MS Pit |
580899 | 6897401 | 138/-53 | 316 | 91 | 0 6 22 59 |
3 9 40 66 |
3 3 18 7 |
0.79 0.70 1.38 2.68 |
| GXRC0539 MS Pit |
580910 | 6897406 | 132/-53 | 316 | 85 | 2 23 57 74 |
4 30 67 76 |
2 7 10 2 |
1.54 2.73 1.93 3.65 |
| GXRC0540 MS Pit |
580908 | 6897410 | 079/-53 | 316 | 80 | 4 24 54 60 |
7 44 58 63 |
3 20 4 3 |
1.09 4.20 0.58 1.26 |
| GXRC0541 MS Pit |
580827 | 6897364 | 141/-55 | 320 | 60 | 3 10 20 |
7 13 33 |
4 3 13 |
0.90 0.72 **6.07 ** |
| GXRC0542 MS Pit |
580807 | 6897290 | 190/-55 | 323 | 76 | 2 11 50 64 |
5 45 61 69 |
3 34 11 5 |
1.46 6.62 1.16 0.63 |
| GXRC0543 MS Pit |
580876 | 6897388 | 155/-54 | 317 | 85 | 1 51 59 |
3 56 65 |
2 5 6 |
0.78 3.13 3.51 |
| GXRC0544 MSPit |
580794 | 6897222 | 185/-55 | 328 | 107 | 69 | 74 | 5 | 1.41 |
| GXRC0545 Shannon Pit |
577299 | 6895891 | 185/-55 | 440 | 287 | Results | Awaited | ||
| GXRC0546 Shannon Pit |
577299 | 6895909 | 300/-52 | 440 | 286 | Results | Awaited | ||
| GXRC0547 Shannon Pit |
577301 | 6895925 | 300/-52 | 440 | 275 | Results | Awaited |
Intercepts generally > 0.5 g/t, with up to 2m of internal dilution. NSR denotes no significant results. True widths generally 70% of interval width, Paris holes & GXRC0542 around 50%. Coordinates are MGA94-Z50.
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Attachment 2: Significant (>0.5 g/t Au) Exploration RC drilling data within Mt Magnet, WA
| Hole Id | Easting | Northing | Az/Dip | RL | F/Depth (m) |
From (m) | To (m) | Interval (m) |
g/t Au |
|---|---|---|---|---|---|---|---|---|---|
| GXRC1540 Black Cat South |
580726 | 6897024 | 074/-63 | 448 | 251 | 78 109 173 |
79 116 176 |
1 7 3 |
3.03 3.25 2.24 |
| GXRC1541 Black Cat South |
580713 | 6897032 | 076/-67 | 448 | 275 | 3 67 94 114 139 209 |
10 79 99 115 140 216 |
7 12 5 1 1 7 |
0.73 1.70 1.91 3.70 3.35 4.06 |
| GXRC1542 Zeus |
576300 | 6897360 | 300/-60 | 443 | 137 Incl. + + |
53 70 106 118 |
136 90 114 134 |
83 20 8 16 |
0.63 1.12 1.36 0.69 |
| GXRC1543 Zeus |
576245 | 6897390 | 300/-55 | 443 | 130 Incl. + + Incl. |
54 54 74 103 103 |
125 71 98 118 113 |
71 17 24 15 10 |
1.43 0.95 0.77 4.10 5.83 |
| GXRC1544 Zeus |
576250 | 6897270 | 300/-60 | 443 | 106 | 62 94 |
82 101 |
20 7 |
1.84 0.75 |
| GXRC1545 Zeus |
575870 | 6896800 | 090/-55 | 442 | 160 | NSR | |||
| GXRC1546 Zeus |
575870 | 6896750 | 090/-55 | 442 | 154 | 69 | 73 | 4 | 0.93 |
| GXRC1547 Zeus |
576840 | 6897650 | 090/-55 | 443 | 154 | 18 | 154 | 136 | 0.30 |
| GXRC1548 Zeus |
576405 | 6898200 | 270/-55 | 451 | 118 | 56 | 66 | 10 | 1.21 |
| GXRC1549 Eddie Carson |
581119 | 6897593 | 067/-79 | 442 | 198 | 141 | 146 | 5 | 2.41 |
| GXRC1550 Eddie Carson |
581120 | 6897591 | 077/-68 | 442 | 198 | 172 | 176 | 4 | 1.18 |
| GXRC1551 Eddie Carson |
581170 | 6897595 | 250/-70 | 441 | 204 | NSR | |||
| GXRC1552 Eddie Carson |
581115 | 6897602 | 077/-68 | 442 | 180 | 110 | 113 | 3 | 4.33 |
| GXRC1553 Eddie Carson |
581124 | 6897556 | 250/-50 | 442 | 150 | NSR | |||
| GXRC1554 Eddie Carson |
581121 | 6897645 | 297/-75 | 442 | 204 | NSR | |||
| GXRC1555 Eddie Carson |
581151 | 6897637 | 070/-85 | 442 | 198 | 42 58 84 101 |
50 62 92 104 |
8 4 8 3 |
4.32 3.19 2.78 1.63 |
| GXRC1556 Eddie Carson |
581145 | 6897810 | 070/-85 | 442 | 162 | 109 145 |
113 155 |
4 10 |
1.89 0.85 |
| GXRC1557 MS Ramp |
580951 | 6897810 | 100/-60 | 421 | 210 Incl. |
86 111 117 |
93 118 118 |
7 7 1 |
1.09 4.61 27.2 |
| GXRC1558 MsRamp |
580970 | 6897823 | 100/-53 | 423 | 216 | 76 | 79 | 3 | 2.72 |
| GXRC1559 Eddie Carson |
581160 | 6897533 | 070/-85 | 442 | 240 | 121 145 155 195 |
124 146 158 204 |
3 1 3 9 |
4.29 3.03 4.07 0.69 |
| GXRC1560 Eddie Carson |
581224 | 6897740 | 250/-55 | 442 | 200 | 118 | 129 | 11 | 0.64 |
| GXRC1561 Bartus East |
579209 | 6892724 | 360/-62 | 423 | 191 Incl. + |
113 145 166 |
189 146 167 |
76 1 1 |
0.86 38.7 3.80 |
| GXRC1562 Bartus East |
579179 | 6892715 | 340/-62 | 423 | 185 Incl. + + |
102 120 137 173 |
182 125 140 182 |
80 5 3 9 |
0.56 1.78 3.48 1.40 |
15
| GXRC1563 BlackCat South |
580757 | 6896984 | 084/-70 | 446 | 161 | NSR | |||
|---|---|---|---|---|---|---|---|---|---|
| GXRC1564 Black Cat South |
580763 | 6896999 | 073/-68 | 447 | 200 Incl. |
55 55 63 |
57 56 65 |
2 1 2 |
8.82 17.05 21.14 |
| GXRC1565 Eddie Carson |
581183 | 6897545 | 070/-85 | 441 | 23 | ABN | |||
| GXRC1566 Eddie Carson |
581186 | 6897546 | 070/-85 | 441 | 29 | ABN | |||
| GXRC1567 BlackCat South |
581170 | 6897502 | 070/-78 | 442 | 60 | NSR | |||
| GXRC1568 MSRamp |
580873 | 6897824 | 075/-65 | 411 | 200 | NSR | |||
| GXRC1569 | 576272 | 6897377 | 446 | Not yet Drilled |
|||||
| GXRC1570 BlackCat South |
580840 | 6896718 | 075/-65 | 442 | 192 | 6 142 |
12 150 |
6 8 |
1.62 1.06 |
| GXRC1571 Eddie Carson |
581168 | 6897512 | 070/-74 | 442 | 180 | NSR | |||
| GXRC1572 Black Cat South |
580700 | 6896674 | 070/-56 | 442 | 354 | 56 64 188 274 |
61 67 193 276 |
5 3 5 2 |
1.44 1.02 1.28 9.46 |
| GXRC1573 Eddie Carson |
581138 | 6897559 | 070/-85 | 442 | 210 | NSR | |||
| GXRC1574 BlackCat South |
580745 | 6896750 | 075/-65 | 443 | 180 | 126 160 |
129 162 |
3 2 |
1.41 2.05 |
| GXRC1575 Eddie Carson |
581165 | 6897510 | 066-64 | 442 | 150 | NSR | |||
| GXRC1576 Black Cat South |
580760 | 6896739 | 075/-65 | 443 | 210 | 54 | 64 | 10 | 0.74 |
| GXRC1577 Eddie Carson |
581171 | 6897503 | 070/-78 | 442 | 204 | NSR | |||
| GXRC1578 Black Cat South |
580755 | 6896739 | 075/-70 | 443 | 252 Incl. |
24 119 119 155 |
32 122 120 158 |
8 3 1 3 |
0.99 15.95 46.2 1.09 |
| GXRC1579 Eddie Carson |
581157 | 6897525 | 255/-85 | 442 | 240 | 197 | 209 | 12 | 2.93 |
| GXRC1580 BlackCat South |
580774 | 6896729 | 075/-65 | 442 | 203 | Results | Awaited | ||
| GXRC1581 Eddie Carson |
581126 | 6897646 | 256/-78 | 442 | 204 | 115 | 124 | 9 | 1.12 |
| GXRC1582 | 580821 | 6896684 | 442 | Not Yet Drilled |
|||||
| GXRC1583 Eddie Carson |
581116 | 6897570 | 250/-50 | 442 | 150 | 0 144 |
1 145 |
1 1 |
0.58 0.56 |
| GXRC1584 | 580860 | 6896700 | 444 | Not Yet Drilled |
|||||
| GXRC1585 Eddie Carson |
581253 | 6897624 | 250/-64 | 442 | 282 | 81 128 |
87 137 |
6 9 |
1.45 1.46 |
| GXRC1586 Black Cat South |
580909 | 6896710 | 070/-63 | 444 | 143 | 30 54 |
35 55 |
5 1 |
0.64 1.52 |
| GXRC1587 Eddie Carson |
581167 | 6897621 | 250/-58 | 442 | 204 | NSR | |||
| GXRC1588 Black Cat South |
580909 | 6896741 | 070/-65 | 445 | 120 | 25 31 42 69 74 |
26 35 47 71 75 |
1 4 5 2 1 |
0.64 1.52 0.78 1.26 1.23 |
| GXRC1589 Eddie Carson |
581109 | 6897599 | 250/-50 | 442 | 192 | 181 | 184 | 3 | 2.45 |
| GXRC1590 Nathan |
581040 | 6896990 | 070/-60 | 448 | 239 | 206 | 207 | 1 | 1.54 |
| GXRC1591 Eddie Carson |
581142 | 6897799 | 070/-68 | 443 | 150 | 33 137 |
37 144 |
4 7 |
1.78 1.29 |
| GXRC1592 Nathan |
581000 | 6896955 | 070/-62 | 448 | 257 | 252 | 256 | 4 | 0.79 |
16
| GXRC1593 Eddie Carson |
581113 | 6897587 | 076/-68 | 442 | 204 | 178 | 180 | 2 | 1.22 |
|---|---|---|---|---|---|---|---|---|---|
| GXRC1594 Black Cat South |
580981 | 6896990 | 447 | Not Yet Drilled |
|||||
| GXRC1595 Eddie Carson |
581131 | 6897742 | 250/-52 | 423 | 252 | 25 122 150 |
28 128 151 |
3 6 1 |
1.22 2.13 1.38 |
| GXRC1596 Black Cat South |
580950 | 6897030 | 447 | Not Yet Drilled |
|||||
| GXRC1597 MS Upper |
580897 | 6897617 | 075/-70 | 363 | 300 | 12 22 40 79 94 120 184 |
14 24 43 80 95 124 185 |
2 2 3 1 1 4 1 |
5.58 3.89 3.84 4.13 2.71 0.51 1.32 |
| GXRC1598 | Not Yet Drilled |
||||||||
| GXRC1599 MS Upper |
580892 | 6897600 | 083/-60 | 362 | 234 | 12 28 39 80 |
16 29 43 81 |
4 1 4 1 |
6.72 1.05 1.50 1.45 |
Reported significant gold assay intersections (using a 0.5 g/t Au lower cut - excluding selected Zeus and Bartus East holes where the entire mineralised porphyry intervals have been recorded along geological contacts) are reported using 1m downhole intervals at plus 0.5 g/t gold, with up to 2m of internal dilution. Gold determination was by Fire Assay using a 50gm charge with AAS finishes and a lower limit of detection of 0.01 ppm Au. NSR denotes no significant results. True widths of the reported downhole intersections are estimated to be 65% of the reported downhole intersections for Black Cat South and Eddie Carson unless specified. True widths for Zeus and Bartus East remain unknown at this stage. Coordinates are MGA94-Z50. Location of holes are annotated in the table.
Attachment 3: Significant (>0.5 g/t Au) Morning Star Deeps Exploration Diamond drilling Mt Magnet, WA
| Hole Id | Easting | Northing | Az/Dip | RL | F/Depth (m) |
From (m) | To (m) | Interval (m) |
g/t Au |
|---|---|---|---|---|---|---|---|---|---|
| MSD0056A | 580624 | 6896627 | 005/-82 | 442 | 1425.00 | NSR | |||
| MSD0056B | 580624 | 6896627 | 005/-82 | 442 | 1382.00 | 1239.00 1252.00 1268.00 1306.00 |
1241.00 1254.00 1269.00 1307.00 |
2.00 2.00 1.00 1.00 |
3.03 (U3) 5.06 (U2) 0.92 (U1) NSR (KL) |
| MSD0056C | 580624 | 6896627 | 005/-82 | 442 | 1384.50 | 1271.00 1277.30 1293.00 1306.00 1309.50 |
1274.00 1282.20 1297.80 1307.00 1311.00 |
3.00 4.90 4.80 1.00 1.50 |
1.97 (U2) 26.49 (U1) 4.70 (KL) 15.35 (L1) 3.53 (L2) |
Reported significant gold assay intersections (using a 0.5 g/t Au lower cut) are reported using geological contacts or up to 1m downhole intervals at plus 0.5 g/t gold, with up to 2m of internal dilution. Gold determination was by Fire Assay using a 50gm charge with AAS finishes and a lower limit of detection of 0.01 ppm Au. NSR denotes no significant results. True widths of the reported downhole intersections are estimated to be +90% of the reported downhole intersections depending upon the lift of the drill holes. Coordinates are MGA94-Z50. Location of holes are annotated in the table. See the report text for a description on the annotation of the various lode positions
Attachment 4: Anomalous Exploration Aircore drilling 4m composite intersections (>0.40 g/t Au over 4m or greater) within the Boogardie Basin - Mt Magnet, WA.
| Hole Id | Easting | Northing | Az/Dip | RL | F/Depth (m) |
From (m) | To (m) | Interval (m) |
g/t Au |
|---|---|---|---|---|---|---|---|---|---|
| GXAC0700 Morning Star W. |
580498 | 6897895 | 360/-60 | 447 | 84 | 36 | 48 | 12 | 0.76 |
| GXAC0742 Britannia Well |
579459 | 6890599 | 270/-60 | 432 | 55 | 28 | 48 | 20 | 0.66 |
| GXAC0745 | 579606 | 6890599 | 270/-60 | 422 | 54 | 20 | 44 | 24 | 0.83 |
17
| Britannia Well | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| GXAC0782 Venus |
579422 | 6895800 | 270/-60 | 436 | 67 | 0 | 12 | 12 | 0.64 |
| GXAC0785 Venus |
579572 | 6895801 | 270/-60 | 436 | 67 | 28 | 66 | 38 | 0.44 |
| GXAC0795 Venus |
579423 | 6895601 | 270/-60 | 436 | 61 | 0 | 12 | 12 | 0.85 |
| GXAC0796 Venus |
579476 | 6895599 | 270/-60 | 436 | 67 | 28 | 40 | 12 | 0.61 |
| GXAC0815 Venus |
579803 | 6896097 | 270/-60 | 436 | 61 | 20 | 61 | 41 | 0.54 |
Reported anomalous gold assay intersections are constrained using a 0.40 g/t Au lower cut for the 4m composite interval, with up to 4m of internal dilution. Gold determination was by Fire Assay using a 50gm charge with AAS finishes and a lower limit of detection of 0.01 ppm Au. NSR denotes no significant results. EOH denotes end of hole depth. True widths remain unknown at this stage of exploration. Coordinates are MGA94-Z50. Assay results available to GXAC0926 only.
FORWARD LOOKING STATEMENTS
This report contains forward looking statements. The forward-looking statements are based on current expectations, estimates, assumptions, forecasts and projections and the industry in which it operates as well as other factors that management believes to be relevant and reasonable in the circumstances at the date such statements are made, but which may prove to be incorrect. The forward-looking statements relate to future matters and are subject to various inherent risks and uncertainties. Many known and unknown factors could cause actual events or results to differ materially from the estimated or anticipated events or results expressed or implied by any forward-looking statements. Such factors include, among others, changes in market conditions, future prices of gold and exchange rate movements, the actual results of production, development and/or exploration activities, variations in grade or recovery rates, plant and/or equipment failure and the possibility of cost overruns. Neither Ramelius, its related bodies corporate nor any of their directors, officers, employees, agents or contractors makes any representation or warranty (either express or implied) as to the accuracy, correctness, completeness, adequacy, reliability or likelihood of fulfilment of any forward-looking statement, or any events or results expressed or implied in any forward-looking statement, except to the extent required by law.
COMPETENT PERSONS
The information in this report that relates to Exploration Results, Mineral Resources and Ore Reserves is based on information compiled by Kevin Seymour (Exploration Results), Rob Hutchison (Mineral Resources) and Duncan Coutts (Ore Reserves), who are Competent Persons and Members of The Australasian Institute of Mining and Metallurgy. Kevin Seymour, Rob Hutchison and Duncan Coutts are full-time employees of the company. Kevin Seymour, Rob Hutchison and Duncan Coutts have sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves”. Kevin Seymour, Rob Hutchison and Duncan Coutts consent to the inclusion in this report of the matters based on their information in the form and context in which it appears.
18
Appendix A – JORC Table 1 Report – Vivien Deposit
Sections 1, 2, 3 see ASX Release ‘December 2016 Quarterly Activities Report’, 31 Jan 2017
Section 4 Estimation and Reporting of Ore Reserves
| Criteria JORC Code explanation |
Commentary |
|---|---|
| Mineral Resource estimate for conversion to Ore Reserves Description of the Mineral Resource estimate used as a basis for the conversion to an Ore Reserve. Clear statement as to whether the Mineral Resources are reported additional to, or inclusive of, the Ore Reserves. |
The resource model_MODViv1701_was used to for Ore Reserve generation. The model is a conventional geologically derived, narrow lode, block model, using composited, top‐cut drill data, anisotropic ordinary kriging estimation. Economic resource is outlined by a broad longsectional 10 gram x metres envelope. Mineral Resources are reported inclusive of Ore Reserves |
| Site visits Comment on any site visits undertaken by the Competent Person and the outcome of those visits. If no site visits have been undertaken indicate why this is the case. |
The Competent Person is a full time employee of Ramelius Resources Ltd and has made multiple site visits to Vivien |
| Study Status The type and level of study undertaken to enable Mineral Resources to be converted to Ore Reserves The Code requires that a study to at least Pre‐Feasibility Study level has been undertaken to convert Mineral Resources to Ore Reserves. Such studies will have been carried out and will have determined a mine plan that is technically achievable and economically viable, and that material Modifying Factors have been considered. The effect, if any, of alternative interpretations on Mineral Resource estimation. |
A Feasibility Study was undertaken prior to commencement of mining in 2014. All material aspects were considered internally or with external consultation, including resource estimation, mine design, costs, ground and surface water, geotechnical, metallurgical and environmental areas. Some aspects notably ground and surface water and metallurgy rely on previous external reports and testwork commissioned by Agnew Gold Mining Company (AGMC) in earlier Feasibility studies. |
| Cut‐off parameters The basis of the cut‐off grade(s) or quality parameters applied. |
A development operating cut‐off grade of 4.5 g/t and a marginal stoping cut‐off grade of 3.9 g/t were calculated. These cut‐off grades were used to optimize economic areas within the orebody resource. |
| Mining factors or assumptions The method and assumptions used as reported in the Pre‐Feasibility or Feasibility Study to convert the Mineral Resource to an Ore Reserve (i.e. either by application of appropriate factors by |
All ore mining will be carried out by underground methods. A 5.5mW x 5.5mH decline is being excavated with associated ore access development and other required capital development (ventilation, dewatering & escape‐ |
19
| optimisation or by preliminary or | way development). | ||
|---|---|---|---|
| detailed design). | | Ore drives are excavated at a nominal 4mW x | |
| The choice, nature and appropriateness | 4.5mH at 20m vertical spacing. | ||
| of the selected mining method(s) and | | Current Stoping is a bottom up retreat method | |
| other mining parameters including | with small dilution control island pillars and larger | ||
| associated design issues such as pre‐ | CRF sill & rib pillars left (with rock backfilling). | ||
| strip, access, etc. | | Remote bogging will be used for 90% of stope ore | |
| The assumptions made regarding | production. | ||
| geotechnical parameters (e.g. pit | | Minimum stope width of 1.5m was assumed with | |
| slopes, stope sizes, etc.), grade control | 20% dilution (0 g/t) and 10% dilution if wider than | ||
| and pre‐production drilling. | 2m. Mining recoveries of 95% has been assumed | ||
| The major assumptions made and | for areas that utilise island pillars & 98% for areas | ||
| Mineral Resource model used for pit | that utilise CRF pillars. | ||
| and stope optimisation (if appropriate). | | The mining method is appropriate for a narrow | |
| The mining dilution factors used. | sub‐vertical lode orebody. | ||
| The mining recovery factors used. | |||
| Any minimum mining widths used. | |||
| The manner in which Inferred Mineral | |||
| Resources are utilised in mining studies | |||
| and the sensitivity of the outcome to | |||
| their inclusion. | |||
| The infrastructure requirements of the | |||
| selected mining methods. | |||
| Metallurgical | The metallurgical process proposed and | | Processing by conventional CIL/CIP gold milling at |
| factors or | the appropriateness of that process to | Mt Magnet Checkers Mill | |
| assumptions | the style of mineralisation | | Metallurgical testwork has been previously carried |
| Whether the metallurgical process is | out including gravity recovery, leach recovery, | ||
| well‐tested technology or novel in | bond work index and concentrate mineralogy | ||
| nature. | studies. Samples were collected as composited | ||
| The nature, amount and | diamond half core ore zones and were | ||
| representativeness of metallurgical test | representative. | ||
| work undertaken, the nature of the | | The deposit is free milling, has high gravity | |
| metallurgical domaining applied and | recovery (+50%) and high overall recovery (+95%). | ||
| the corresponding metallurgical | |||
| recovery factors applied. | |||
| Any assumptions or allowances made | |||
| for deleterious elements. | |||
| The existence of any bulk sample or | |||
| pilot scale test work and the degree to | |||
| which such samples are considered | |||
| representative of the orebody as a | |||
| whole. | |||
| For minerals that are defined by a | |||
| specification, has the ore reserve | |||
| estimation been based on the | |||
| appropriate mineralogy to meet the | |||
| specifications? | |||
| Environmental | The status of studies of potential | | Environmental studies completed previously and |
| environmental impacts of the mining | all approvals in place | ||
| and processing operation. Details of | | No significant PAF waste material occurs for the |
20
| waste rock characterisation and the | deposit. | |
|---|---|---|
| consideration of potential sites, status | Waste has been placed in the existing Vivien pit | |
| of design options considered and, where | and used as backfill for UG stope voids. |
|
| applicable, the status of approvals for | ||
| process residue storage and waste | ||
| dumps should be reported. | ||
| Infrastructure | The existence of appropriate | Infrastructure requirements comprising of offices, |
| infrastructure: availability of land for | workshop, generators, underground fan, | |
| plant development, power, water, | dewatering pumps, pipeline and UG magazine are | |
| transportation (particularly for bulk | complete. | |
| commodities), labour, accommodation; | Excess water is delivered to the Agnew Gold Mine | |
| or the ease with which the | processing storage system. | |
| infrastructure can be provided, or | Milling and accommodation facilities utilise | |
| accessed. | existing Mt Magnet and Leinster based | |
| infrastructure. | ||
| Costs | The derivation of, or assumptions made, | Capital & Operating Costs have been derived from |
| regarding projected capital costs in the | actual unit rate costs were possible, including | |
| study. | mining, haulage, milling, administration and | |
| The methodology used to estimate | capital costs. | |
| operating costs. | Rates have been applied within an extensive mine | |
| Allowances made for the content of | design scheduling/costing/production | |
| deleterious elements. | spreadsheet. | |
| The derivation of assumptions made of | Mt Magnet treatment costs based on known | |
| metal or commodity price(s), for the | current milling costs. | |
| principal minerals and co‐ products. | Applicable royalties are included. | |
| The source of exchange rates used in | No deleterious elements present | |
| the study. | Cost models use Australian dollars | |
| Derivation of transportation charges. | ||
| The basis for forecasting or source of | ||
| treatment and refining charges, | ||
| penalties for failure to meet | ||
| specification, etc. | ||
| The allowances made for royalties | ||
| payable, both Government and private. | ||
| Revenue Factors | The derivation of, or assumptions made | Gold price of $1600/oz used |
| regarding revenue factors including | ||
| head grade, metal or commodity | ||
| price(s) exchange rates, transportation | ||
| and treatment charges, penalties, net | ||
| smelter returns, etc. | ||
| The derivation of assumptions made of | ||
| metal or commodity price(s), for the | ||
| principal metals, minerals and co‐ | ||
| products. | ||
| Market | The demand, supply and stock situation | Doré is sold direct to the Perth Mint at spot price |
| Assessment | for the particular commodity, | Market window unlikely to change |
| consumption trends and factors likely to | Price is likely to go up, down or remain same |
|
| affect supply and demand into the | Not industrial mineral | |
| future. | ||
| A customer and competitor analysis |
21
| along with the identification of likely market windows for the product. Price and volume forecasts and the basis for these forecasts. For industrial minerals the customer specification, testing and acceptance requirements prior to a supply contract. |
|
|---|---|
| Economic The inputs to the economic analysis to produce the net present value (NPV) in the study, the source and confidence of these economic inputs including estimated inflation, discount rate, etc. NPV ranges and sensitivity to variations in the significant assumptions and inputs. |
Discounted cash flows were carried out to determine relative NPV's, using a 5% annual discount rate. |
| Social The status of agreements with key stakeholders and matters leading to social licence to operate. |
Agreements are in place with stakeholders including traditional land owner claimants, pastoralists and the relevant Shires |
| Other To the extent relevant, the impact of the following on the project and/or on the estimation and classification of the Ore Reserves: Any identified material naturally occurring risks. The status of material legal agreements and marketing arrangements. The status of governmental agreements and approvals critical to the viability of the project, such as mineral tenement status, and government and statutory approvals. There must be reasonable grounds to expect that all necessary Government approvals will be received within the timeframes anticipated in the Pre‐Feasibility or Feasibility study. Highlight and discuss the materiality of any unresolved matter that is dependent on a third party on which extraction of the reserve is contingent. |
No material risks are identified |
| Classification The basis for the classification of the Ore Reserves into varying confidence categories. Whether the result appropriately reflects the Competent Person’s view of the deposit. The proportion of Probable Ore Reserves that have been derived from Measured Mineral Resources (if any) |
Ore Reserves are classed as Probable based on Indicated Resource classification and reflect the Competent Person's views |
| Audits or reviews The results of any audits or reviews of |
An external review of the previous Feasibility |
22
| Ore Reserve estimates. | study was undertaken by an independent mining | |
|---|---|---|
| consultant, no fatal flaws were identified | ||
| Discussion of | Where appropriate a statement of the | Confidence is in line with gold industry standards |
| relative | relative accuracy and confidence level in | and the company's aim to provide effective |
| accuracy/confiden | the Ore Reserve estimate using an | prediction for current and future mining |
| ce | approach or procedure deemed | operations |
| appropriate by the Competent Person. | Estimate is global by deposit | |
| For example, the application of | The Reserve is most sensitive to a) gold price and | |
| statistical or geostatistical procedures | b) resource grade prediction | |
| to quantify the relative accuracy of the | Recent ore production is performing well against | |
| reserve within stated confidence limits, | resource/reserve estimates | |
| or, if such an approach is not deemed | ||
| appropriate, a qualitative discussion of | ||
| the factors which could affect the | ||
| relative accuracy and confidence of the | ||
| estimate. | ||
| The statement should specify whether it | ||
| relates to global or local estimates, and, | ||
| if local, state the relevant tonnages, | ||
| which should be relevant to technical | ||
| and economic evaluation. | ||
| Documentation should include | ||
| assumptions made and the procedures | ||
| used. | ||
| Accuracy and confidence discussions | ||
| should extend to specific discussions of | ||
| any applied Modifying Factors that may | ||
| have a material impact on Ore Reserve | ||
| viability, or for which there are | ||
| remaining areas of uncertainty at the | ||
| current study stage. | ||
| It is recognised that this may not be | ||
| possible or appropriate in all | ||
| circumstances. These statements of | ||
| relative accuracy and confidence of the | ||
| estimate should be compared with | ||
| production data, where available. |
23
Appendix B – JORC Table 1 Report
Section 1 Sampling Techniques and Data: Brown Hill, Vegas and Shannon Deposits plus Exploration Aircore, RC and Diamond Drilling
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Sampling | Nature and quality of sampling (e.g. |
Sampled by RC drilling with samples collected as 1m |
| techniques | cut channels, random chips, or specific | samples and sub‐sampled using a riffle or cone |
| specialised industry standard | splitter to produce ≈3kg sub‐samples. Drillhole | |
| measurement tools appropriate to the | locations were designed to cover the spatial extents | |
| minerals under investigation, such as | of the interpreted mineralisation. | |
| down hole gamma sondes, or handheld | 4m composites were collected for all Aircore drilling | |
| XRF instruments, etc.). These examples | Selected geological contacts and/or up to 1m | |
| should not be taken as limiting the broad | intervals sampled from all diamond drilling | |
| meaning of sampling. | Drill hole locations were designed to allow for spatial | |
| Include reference to measures taken |
spread across the interpreted mineralised zone. |
|
| to ensure sample representivity and the | Standard fire assaying was employed using a 50gm | |
| appropriate calibration of any | charge with an AAS finish. | |
| measurement tools or systems used. | The majority of drilling is historic in nature. New | |
| Aspects of the determination of |
drilling confirms location and tenor of previous | |
| mineralisation that are Material to the | drilling. | |
| Public Report. | ||
| In cases where ‘industry standard’ |
||
| work has been done this would be | ||
| relatively simple (e.g. ‘reverse circulation | ||
| drilling was used to obtain 1 m samples | ||
| from which 3 kg was pulverised to | ||
| produce a 30g charge for fire assay’). In | ||
| other cases more explanation may be | ||
| required, such as where there is coarse | ||
| gold that has inherent sampling | ||
| problems. Unusual commodities or | ||
| mineralisation types (e.g. submarine | ||
| nodules) may warrant disclosure of | ||
| detailed information. | ||
| Drilling | Drill type (e.g. core, reverse circulation, | RC Drilling was completed using best practice 5 ¾” |
| techniques | open‐hole hammer, rotary air blast, | face sampling RC drilling hammers, 3” Aircore bits. |
| auger, Bangka, sonic, etc.) and details | Diamond drilling engaged NQ (~50cm diameter) | |
| (e.g. core diameter, triple or standard | rods. | |
| tube, depth of diamond tails, face‐ | Minor historical RAB & Aircore drilling was | |
| sampling bit or other type, whether core | completed within the upper laterite zone to improve | |
| is oriented and if so, by what method, | continuity, otherwise only RC or diamond drill hole | |
| etc.). | data was utilized for all resource estimation work | |
| throughout Mount Magnet. | ||
| Drill sample | Method of recording and assessing core | Bulk RC and Aircore drillholes samples were visually |
| recovery | and chip sample recoveries and results | inspected by the supervising geologist to ensure |
| assessed. | adequate clean sample recoveries were achieved. | |
| Measures taken to maximise sample | Zones of poor sample return are recorded in the | |
| recovery and ensure representative | database and cross checked once assay results are | |
| nature of the samples. | received from the laboratory to ensure no | |
| Whether a relationship exists between | misrepresentation of sampling intervals has | |
| sample recovery and grade and whether | occurred. Excellent RC and diamond drill recovery is | |
| sample bias may have occurred due to | reported from all RC and diamond holes. |
24
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| preferential loss/gain of fine/coarse | No indication of sample bias is evident or has been | |
| material. | established | |
| Logging | Whether core and chip samples have | All drill samples are geologically logged on site by |
| been geologically and geotechnically | RMS geologists. Details on the host lithologies, | |
| logged to a level of detail to support | deformation, dominant minerals including sulphide | |
| appropriate Mineral Resource estimation, | species and alteration minerals plus veining are |
|
| mining studies and metallurgical studies. | recorded relationally (separately). | |
| Whether logging is qualitative or | Drillhole logging of chips or core is qualitative on | |
| quantitative in nature. Core (or costean, | visual recordings of rock forming minerals and | |
| channel, etc.) photography. | estimates of mineral abundance. | |
| The total length and percentage of the | The entire length of drillholes are geologically logged | |
| relevant intersections logged. | ||
| Sub‐sampling | If core, whether cut or sawn and whether | Duplicate samples are collected every 25thsample |
| techniques | quarter, half or all core taken. | from the drill chips or core samples. |
| and sample | If non‐core, whether riffled, tube | Dry RC 1m samples are riffle split to 3kg as drilled |
| preparation | sampled, rotary split, etc. and whether | and dispatched to the laboratory. Any wet samples |
| sampled wet or dry. | are recorded in the database as such and allowed to | |
| For all sample types, the nature, quality | dry before splitting and dispatching to the | |
| and appropriateness of the sample | laboratory. 4m Aircore composites were grabbed | |
| preparation technique. | sampled from drill spoil deposited on the ground. | |
| Quality control procedures adopted for all | All samples are pulverized prior to splitting in the |
|
| sub‐sampling stages to maximise | laboratory to ensure homogenous samples with 85% | |
| representivity of samples. | passing 75um. 200gm is extracted by spatula that is | |
| Measures taken to ensure that the | used for the 50gm charge on standard fire assays. | |
| sampling is representative of the in situ | All samples submitted to the laboratory are sorted | |
| material collected, including for instance | and reconciled against the submission documents. | |
| results for field duplicate/second‐half | In addition to duplicates a high grade or low grade | |
| sampling. | standard is included every 25thsample, a controlled | |
| Whether sample sizes are appropriate to | blank is inserted every 100thsample. | |
| the grain size of the material being | The sample size is considered appropriate for the | |
| sampled. | type, style, thickness and consistency of | |
| mineralization. | ||
| Quality of | The nature, quality and appropriateness | The fire assay method is designed to measure the |
| assay data and | of the assaying and laboratory |
total gold in the sample. A standard 50g charge is |
| laboratory | procedures used and whether the | fired followed by acid digestion and measurement |
| tests | technique is considered partial or total. | by AAS. |
| For geophysical tools, spectrometers, | No field analyses of gold grades are completed. | |
| handheld XRF instruments, etc., the | Quantitative analysis of the gold content and trace | |
| parameters used in determining the | elements is undertaken in a controlled laboratory | |
| analysis including instrument make and | environment. | |
| model, reading times, calibrations factors | Industry best practice is employed with the inclusion | |
| applied and their derivation, etc. | of duplicates and standards as discussed above, and | |
| Nature of quality control procedures | used by Ramelius as well as the laboratory. All | |
| adopted (e.g. standards, blanks, | Ramelius standards and blanks are interrogated to | |
| duplicates, external laboratory checks) | ensure they lie within acceptable tolerances. | |
| and whether acceptable levels of | Additionally, sample size, grind size and field | |
| accuracy (i.e. lack of bias) and precision | duplicates are examined to ensure no bias to gold | |
| have been established. | grades exists. | |
| Verification of | The verification of significant | Alternative Ramelius personnel have inspected the |
| sampling and | intersections by either independent or | chips and diamond core in the field to verify the |
| assaying | alternative company personnel. | correlation of mineralised zones between assay |
| The use of twinned holes. | results and lithology, alteration and mineralization. | |
| Documentation of primary data, data | All holes are digitally logged in the field and all | |
| entry procedures, data verification, data | primary data is forwarded to Ramelius’ Database | |
| storage (physical and electronic) | Administrator (DBA) in Perth where it is imported | |
| protocols. | into Datashed. Assaydata is electronicallymerged |
25
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Discuss any adjustment to assay data. | when received from the laboratory. The responsible | |
| project geologist reviews the data in the database to | ||
| ensure that it is correct and has merged properly | ||
| and that all the drill data collected in the field has | ||
| been captured and entered in to the database | ||
| correctly. | ||
| The responsible geologist makes the DBA aware of | ||
| any errors and/or omissions to the database and the | ||
| corrections (if required) are corrected in the | ||
| database immediately. | ||
| No adjustments or calibrations are made to any | ||
| assaydata | ||
| Location of | Accuracy and quality of surveys used to | Hole collars are picked up using accurate DGPS |
| data points | locate drill holes (collar and down‐hole | survey control. All down hole surveys are collected |
| surveys), trenches, mine workings and | using downhole electronic single shot or gyro | |
| other locations used in Mineral Resource | surveying techniques provided by the drilling | |
| estimation. | contractors. | |
| Specification of the grid system used. | All holes are picked up in MGA94 – Zone 50 grid | |
| Quality and adequacy of topographic | coordinates. | |
| control. | Topographic control is established from DTM survey | |
| control bases | ||
| Data spacing | Data spacing for reporting of Exploration | Resource definition drillholes were generally |
| and | Results. | planned on a minimum 25m x 25m spacing. |
| distribution | Whether the data spacing and | Exploration holes spacing is contingent on the scale |
| distribution is sufficient to establish the | of the anomalism being targeted. | |
| degree of geological and grade continuity | This resource spacing is considered adequate to |
|
| appropriate for the Mineral Resource and | define the geological and grade continuity of | |
| Ore Reserve estimation procedure(s) and | mineralisation | |
| classifications applied. | No sampling compositing has been applied within | |
| Whether sample compositing has been | key mineralised intervals. | |
| applied. | ||
| Orientation of | Whether the orientation of sampling | The drilling is drilled orthogonal to the interpreted |
| data in | achieves unbiased sampling of possible | strike of the target horizon. Aircore drilling is |
| relation to | structures and the extent to which this is | completed on MGA east‐west or north‐south |
| geological | known, considering the deposit type. | traverses for convenience, with holes nominally 50m |
| structure | If the relationship between the drilling | apart. |
| orientation and the orientation of key | No significant bias has been recognised | |
| mineralised structures is considered to | ||
| have introduced a sampling bias, this | ||
| should be assessed and reported if | ||
| material. | ||
| Sample | The measures taken to ensure sample | All bagged drill samples are delivered directly from |
| security | security. | the field to the assay laboratory in Perth, whereupon |
| the laboratory checks the physically received | ||
| samples against Ramelius’ sample | ||
| submission/dispatch notes. | ||
| Audits or | The results of any audits or reviews of | No external audits have been completed to date. |
| reviews | sampling techniques and data. |
26
Section 2 Reporting of Exploration Results - Brown Hill, Vegas & Shannon Deposits
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Mineral | Type, reference name/number, location | The results reported in this report are on granted |
| tenement and | and ownership including agreements or | Mining Leases throughout Mount Magnet, all owned |
| land tenure | material issues with third parties such as | 100% by Ramelius Resources Limited. |
| status | joint ventures, partnerships, overriding | At this time all the tenements are in good standing. |
| royalties, native title interests, historical | There are no known impediments to obtaining a | |
| sites, wilderness or national park and | licence to operate in the area. | |
| environmental settings. | ||
| The security of the tenure held at the time | ||
| of reporting along with any known | ||
| impediments to obtaining a licence to | ||
| operate in the area. | ||
| Exploration | Acknowledgment and appraisal of | Previous work consists of RAB/AC and RC drilling |
| done by other | exploration by other parties. | drilled by previous owners including WMC, Hill 50 |
| parties | Gold NL and Harmony Gold. | |
| Geology | Deposit type, geological setting and style | All drill targets are orogenic structurally controlled |
| of mineralisation. | Archean gold deposits. Brown Hill and Vegas are | |
| part of the Galaxy mining area. Mineralisation is | ||
| mostly hosted by BIF units in a sub‐vertical | ||
| stratigraphy with mafic, ultramafic and felsic units. | ||
| Grade is best developed where ‘Boogardie Break’ | ||
| faults cross‐cut stratigraphy. Gold related to pyrite, | ||
| pyrrhotite sulphidation. | ||
| Shannon is hosted in felsic intrusive units or the | ||
| Boogardie Formation. Mineralisation is confined to | ||
| 40‐50° East dipping shear zone. Gold mineralisation | ||
| is related quartz veins, disseminated sulphides and | ||
| silica‐sericite alteration. | ||
| Morning Star consists of mineralized BIF (Evening | ||
| Star Chert) and quartz veins/lodes hosted in | ||
| andesitic volcaniclastics rocks, folded and | ||
| overprinted by late stage penetrative foliation | ||
| parallel mineralizedquartz veins in shear zones | ||
| Drill hole | A summary of all information material to | All the drill holes reported in this report have the |
| Information | the understanding of the exploration | following parameters applied. All drill holes |
| results including a tabulation of the | completed, including holes with no significant results | |
| following information for all Material drill | (as defined in the Attachments) are reported in this |
|
| holes: | announcement. | |
o easting and northing of the drill hole |
Easting and northing are given in MGA94 | |
| collar | coordinates as defined in the Attachments. | |
o elevation or RL (Reduced Level – |
RL is AHD | |
| elevation above sea level in metres) of | Dip is the inclination of the hole from the horizontal. |
|
| the drill hole collar | Azimuth is reported in magnetic degrees as the | |
o dip and azimuth of the hole |
direction the hole is drilled. MGA94 and magnetic | |
o down hole length and interception |
degrees vary by <10in the project area. | |
| depth | Down hole length is the distance measured along the | |
o hole length. |
drill hole trace. Intersection length is the thickness | |
| If the exclusion of this information is | of an anomalous gold intersection measured along | |
| justified on the basis that the information | the drill hole trace. | |
| is not Material and this exclusion does not | Hole length is the distance from the surface to the |
|
| detract from the understanding of the | end of the hole measured alongthe drill hole trace. |
27
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| report, the Competent Person should | No results currently available from the exploration | |
| clearly explain why this is the case. | drilling are excluded from this report. Gold grade | |
| intersections >0.4 g/t Au within 4m Aircore | ||
| composites at Mount Magnet, or >0.5 g/t Au within | ||
| single metre RC and diamond samples (with up to | ||
| 4m of internal dilution) are considered significant | ||
| (based upon the known distribution of gold | ||
| mineralization within each project) in the broader | ||
| mineralised host rocks | ||
| Gold grades greater than 0.5 g/t Au are highlighted | ||
| where good continuity of higher grade | ||
| mineralization is observed. | ||
| Data | In reporting Exploration Results, | The first gold assay result received from each sample |
| aggregation | weighting averaging techniques, | reported by the laboratory is tabled in the list of |
| methods | maximum and/or minimum grade | significant assays. Subsequent repeat analyses when |
| truncations (e.g. cutting of high grades) | performed by the laboratory are checked against the | |
| and cut‐off grades are usually Material | original to ensure repeatability of the assay results. | |
| and should be stated. | Weighted average techniques are applied to | |
| Where aggregate intercepts incorporate | determine the grade of the anomalous interval when | |
| short lengths of high grade results and | geological intervals less than 1m have been sampled. | |
| longer lengths of low grade results, the | Exploration drilling results are generally reported | |
| procedure used for such aggregation | using a 0.1 g/t Au lower cut‐off (as described above | |
| should be stated and some typical | and reported in the Attachments) and may include | |
| examples of such aggregations should be | up to 4m of internal dilution. Significant resource | |
| shown in detail. | development drill hole assays are reported greater | |
| The assumptions used for any reporting of | than 0.5 or 8.0 g/t Au and are also reported |
|
| metal equivalent values should be clearly | separately. For example, the broader plus 1.0 g/t Au | |
| stated. | intersection of 6.5m @ 30.5 g/t Au contains a higher | |
| grade zone running plus 8 g/t Au and is included as | ||
| 4m @ 48.5 g/t Au. Where extremely high gold | ||
| intersections are encountered as in this example, the | ||
| highest grade sample interval (e.g. 1.0m @ 150 g/t | ||
| Au) is also reported. All assay results are reported to | ||
| 3 significant figures in line with the analytical | ||
| precision of the laboratory techniques employed. | ||
| No metal equivalent reportingis used or applied. | ||
| Relationship | These relationships are particularly | The intersection length is measured down the length |
| between | important in the reporting of Exploration | of the hole and is not usually the true width. |
| mineralisation | Results. | True widths are noted within the intercept tables. |
| widths and | If the geometry of the mineralisation with | |
| intercept | respect to the drill hole angle is known, its | |
| lengths | nature should be reported. | |
| If it is not known and only the down hole | ||
| lengths are reported, there should be a | ||
| clear statement to this effect (e.g. ‘down | ||
| _hole length, true width not known’). _ | ||
| Diagrams | Appropriate maps and sections (with | Representative example maps and sections are |
| scales) and tabulations of intercepts | included in the text. | |
| should be included for any significant | ||
| discovery being reported These should | ||
| include, but not be limited to a plan view | ||
| of drill hole collar locations and | ||
| appropriate sectional views. | ||
| Balanced | Where comprehensive reporting of all | All new RC and diamond drillhole intercepts |
| reporting | Exploration Results is not practicable, | completed by RMS are reported. |
| representative reporting of both low and |
28
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| high grades and/or widths should be | ||
| practiced to avoid misleading reporting of | ||
| Exploration Results. | ||
| Other | Other exploration data, if meaningful and | No other exploration data that has been collected is |
| substantive | material, should be reported including | considered meaningful and material to this report. |
| exploration | (but not limited to): geological | |
| data | observations; geophysical survey results; | |
| geochemical survey results; bulk samples | ||
| – size and method of treatment; | ||
| metallurgical test results; bulk density, | ||
| groundwater, geotechnical and rock | ||
| characteristics; potential deleterious or | ||
| contaminating substances. | ||
| Further work | The nature and scale of planned further | Future exploration includes ongoing Aircore drilling, |
| work (e.g. tests for lateral extensions or | RC drilling deeper diamond drilling plus geotechnical | |
| depth extensions or large‐scale step‐out | diamond core drilling to better define the depth | |
| drilling). | extent and confirm design parameters. | |
| Diagrams clearly highlighting the areas of | ||
| possible extensions, including the main | ||
| geological interpretations and future | ||
| drilling areas, provided this information is | ||
| not commercially sensitive. |
Section 3 Estimation and Reporting of Mineral Resources. Brown Hill, Vegas and Shannon Deposits
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Database | Measures taken to ensure that data has | Data has been sourced from the RMS drillhole |
| integrity | not been corrupted by, for example, | database using the Datashed system |
| transcription or keying errors, between | Validation checks were conducted for overlapping | |
| its initial collection and its use for | intervals, duplicate assays, EOH depth and negative | |
| Mineral Resource estimation purposes. | or zero assay values | |
| Data validationprocedures used. | ||
| Site visits | Comment on any site visits undertaken | The Competent Person has visited the site and |
| by the Competent Person and the | confirmed observations available in drill cuttings | |
| outcome of those visits. | and surface features. | |
| If no site visits have been undertaken | ||
| indicate why this is the case. | ||
| Geological | Confidence in (or conversely, the | Confidence in the geological interpretation is |
| interpretation | uncertainty of) the geological | reasonable. The geometry and nature of |
| interpretation of the mineral deposit. | mineralisation is similar to neighbouring deposits | |
| Nature of the data used and of any | Data used include drilling assay and geological | |
| assumptions made. | logging and minor historic surface workings | |
| The effect, if any, of alternative | No alternate interpretation envisaged | |
| interpretations on Mineral Resource | ||
| estimation. | ||
| The use of geology in guiding and | ||
| controlling Mineral Resource estimation. | ||
| The factors affecting continuity both of | ||
| _grade andgeology. _ | ||
| Dimensions | The extent and variability of the Mineral | Brown Hill and Vegas 100‐150m NW strike, 4‐20m |
| Resource expressed as length (along | wide, sub‐vertical mineralised BIF zones | |
| strike or otherwise), plan width, and | Shannon 120m N‐S strike, 5‐10m thick lode zone | |
| depth below surface to the upper and | dippingeast around 45° |
29
| lower limits of the Mineral Resource. | ||
|---|---|---|
| Estimation and | The nature and appropriateness of the | Deposits were estimated using geological software |
| modelling | estimation technique(s) applied and key | using ID or OK methods inside constrained |
| techniques | assumptions, including treatment of | mineralisation domains. The estimation method is |
| extreme grade values, domaining, | appropriate for the deposit type. | |
| interpolation parameters and maximum | Previous models existed for all deposits, except for | |
| distance of extrapolation from data | Stellar West | |
| points. If a computer assisted estimation | Only gold is estimated | |
| method was chosen include a description | No deleterious elements present |
|
| of computer software and parameters | Parent cell of 5mN x 10mE x 5mRL or similar used. | |
| used. | Subcells (x 50%) used at topographic and | |
| The availability of check estimates, | mineralisation boundaries boundary. Parent cell | |
| previous estimates and/or mine | estimation only. | |
| production records and whether the | No selective mining unit assumptions applied. | |
| Mineral Resource estimate takes | Domains were statistically analysed and assigned | |
| appropriate account of such data. | appropriate search directions, top‐cuts and | |
| The assumptions made regarding | estimation parameters | |
| recovery of by‐products. | Constrained grade interpretation for each resource. | |
| Estimation of deleterious elements or | Samples were composited within ore domains to | |
| other non‐grade variables of economic | 1m lengths | |
| significance (e.g. sulphur for acid mine | Top cuts were applied to domains after review of | |
| drainage characterisation). | grade population characteristics. | |
| In the case of block model interpolation, | Validation included visual comparison against | |
| the block size in relation to the average | drillhole grades | |
| sample spacing and the search | ||
| employed. | ||
| Any assumptions behind modelling of | ||
| selective mining units. | ||
| Any assumptions about correlation | ||
| between variables. | ||
| Description of how the geological | ||
| interpretation was used to control the | ||
| resource estimates. | ||
| Discussion of basis for using or not using | ||
| grade cutting or capping. | ||
| The process of validation, the checking | ||
| process used, the comparison of model | ||
| data to drill hole data, and use of | ||
| reconciliation data if available. | ||
| Moisture | Whether te tonnages are es�mated on a | Tonnages are estimated on a dry basis |
| dry basis or with natural moisture, and | ||
| the method of determina�on of the | ||
| moisture content. | ||
| Cut‐off | The basis of the adopted cut‐off grade(s) | A 0.7 g/t grade cut‐off has been used for resource |
| parameters | or quality parameters applied. | reporting |
| Mining factors | Assumptions made regarding possible | Resources are reported on the assumption of |
| or assumptions | mining methods, minimum mining | mining by conventional open pit grade control and |
| dimensions and internal (or, if applicable, | mining methods. Parent block size is regarded as a |
|
| external) mining dilution. It is always | reasonable SMU equivalent. | |
| necessary as part of the process of | ||
| determining reasonable prospects for | ||
| eventual economic extraction to consider | ||
| potential mining methods, but the | ||
| assumptions made regarding mining | ||
| methods and parameters when | ||
| estimating Mineral Resources may not | ||
| always be rigorous. Where this is the |
30
| case, this should be reported with an | ||
|---|---|---|
| explanation of the basis of the mining | ||
| assumptions made. | ||
| Metallurgical | The basis for assumptions or predictions | A 92% recovery factor is used and is based on |
| factors or | regarding metallurgical amenability. It is | testwork and well established Mt Magnet recovery |
| assumptions | always necessary as part of the process | data. |
| of determining reasonable prospects for | ||
| eventual economic extraction to consider | ||
| potential metallurgical methods, but the | ||
| assumptions regarding metallurgical | ||
| treatment processes and parameters | ||
| made when reporting Mineral Resources | ||
| may not always be rigorous. Where this | ||
| is the case, this should be reported with | ||
| an explanation of the basis of the | ||
| metallurgical assumptions made. | ||
| Environmental | Assumptions made regarding possible | Environmental studies and waste characterisation |
| factors or | waste and process residue disposal | testing completed |
| assumptions | options. It is always necessary as part of | No significant issues with waste rock or tailings |
| the process of determining reasonable | Ore treatment and tailings generation would occur | |
| prospects for eventual economic | at the current Mt Magnet Checkers mill site. | |
| extraction to consider the potential | ||
| environmental impacts of the mining and | ||
| processing operation. While at this stage | ||
| the determination of potential | ||
| environmental impacts, particularly for a | ||
| greenfields project, may not always be | ||
| well advanced, the status of early | ||
| consideration of these potential | ||
| environmental impacts should be | ||
| reported. Where these aspects have not | ||
| been considered this should be reported | ||
| with an explanation of the environmental | ||
| assumptions made. | ||
| Bulk density | Whether assumed or determined. If | Density values are adopted from recent testwork |
| assumed, the basis for the assumptions. | on the nearby Milky Way deposit and established | |
| If determined, the method used, whether | Mt Magnet values |
|
| wet or dry, the frequency of the | Density measurements were completed on the | |
| measurements, the nature, size and | geotechnical diamond core holes using the weight | |
| representativeness of the samples. | in air/weight in water method. | |
| The bulk density for bulk material must | They have been assigned by geological and | |
| have been measured by methods that | weathering domains | |
| adequately account for void spaces | ||
| (vugs, porosity, etc.), moisture and | ||
| differences between rock and alteration | ||
| zones within the deposit. | ||
| Discuss assumptions for bulk density | ||
| estimates used in the evaluation process | ||
| of the different materials. | ||
| Classification | The basis for the classification of the | The resources have been classified as Indicated or |
| Mineral Resources into varying | Inferred category’s based on geological and grade | |
| confidence categories. | continuity and drill hole spacing. | |
| Whether appropriate account has been | The resource classification accounts for all relevant | |
| taken of all relevant factors (i.e. relative | factors | |
| confidence in tonnage/grade | The classification reflects the Competent Person’s | |
| estimations, reliability of input data, | view | |
| confidence in continuity of geology and | ||
| metal values, quality, quantity and |
31
| distribution of the data). | ||
|---|---|---|
| Whether the result appropriately reflects | ||
| the Competent Person’s view of the | ||
| deposit. | ||
| Audits or | The results of any audits or reviews of | No audits or reviews conducted. |
| reviews | Mineral Resource estimates. | |
| Discussion of | Where appropriate a statement of the | Confidence in the relative accuracy of the estimates |
| relative | relative accuracy and confidence level in | is reflected by the classifications assigned |
| accuracy/ | the Mineral Resource estimate using an | The estimate is a global estimate |
| confidence | approach or procedure deemed | Historic production data and from comparable |
| appropriate by the Competent Person. | nearly pits is available for comparison | |
| For example, the application of statistical | ||
| or geostatistical procedures to quantify | ||
| the relative accuracy of the resource | ||
| within stated confidence limits, or, if such | ||
| an approach is not deemed appropriate, | ||
| a qualitative discussion of the factors | ||
| that could affect the relative accuracy | ||
| and confidence of the estimate. | ||
| The statement should specify whether it | ||
| relates to global or local estimates, and, | ||
| if local, state the relevant tonnages, | ||
| which should be relevant to technical and | ||
| economic evaluation. Documentation | ||
| should include assumptions made and | ||
| the procedures used. | ||
| These statements of relative accuracy | ||
| and confidence of the estimate should be | ||
| compared with production data, where | ||
| available. |
Section 4 Estimation and Reporting of Ore Reserves. Brown Hill, Vegas, Stellar, Stellar West & Shannon Deposits
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Mineral Resource estimate | Description of the Mineral Resource |
Mineral Resource models described above |
| for conversion to Ore | estimate used as a basis for the | were evaluated using mining dilution and |
| Reserves | conversion to an Ore Reserve. | recovery factors |
| Clear statement as to whether the | Mineral Resources are reported inclusive of | |
| Mineral Resources are reported | Ore Reserves | |
| additional to, or inclusive of, the Ore | ||
| Reserves. | ||
| Site visits | Comment on any site visits | The Competent Person has made multiple |
| undertaken by the Competent Person | site visits | |
| and the outcome of those visits. If no site visits have been undertaken |
Visit verified understanding of deposit and available information |
|
| indicate why this is the case. | ||
| Study Status | The type and level of study | A pre‐feasibility study has been carried out |
| undertaken to enable Mineral | appropriate to the deposit type, mining | |
| Resources to be converted to Ore | method and scale. The study was carried out | |
| Reserves | internally and externally using consultants |
32
The Code requires that a study to at where appropriate least Pre‐Feasibility Study level has been undertaken to convert Mineral Resources to Ore Reserves. Such studies will have been carried out and will have determined a mine plan that is technically achievable and economically viable, and that material Modifying Factors have been considered. The effect, if any, of alternative interpretations on Mineral Resource estimation.
| Cut‐off parameters | The basis of the cut‐off grade(s) or | Cutoff is calculated as part of current mine |
|---|---|---|
| quality parameters applied. | operations and is 0.7 g/t | |
| Mining factors or | The method and assumptions used as | The Mineral Resource models were |
| assumptions | reported in the Pre‐Feasibility or | optimised and evaluated using mining |
| Feasibility Study to convert the | dilution and recovery factors | |
| Mineral Resource to an Ore Reserve | Mining method is conventional open‐pit | |
| (i.e. either by application of | with drill and blast, excavate, load and haul. | |
| appropriate factors by optimisation | Parent blocks reflect expected SMU size for | |
| or by preliminary or detailed design). | grade control density and mining equipment | |
| The choice, nature and | size | |
| appropriateness of the selected | An external geotechnical report was | |
| mining method(s) and other mining | commissioned based on previous and new | |
| parameters including associated | geotechnical logging information and gives | |
| design issues such as pre‐strip, | recommended pit design parameters | |
| access, etc. | Mining dilutions were Brown Hill ‐ 15%, | |
| The assumptions made regarding | Vegas – 6%, Shannon – 12% | |
| geotechnical parameters (e.g. pit | Mining recoveries were Brown Hill ‐ 95%, | |
| slopes, stope sizes, etc.), grade | Vegas ‐ 95%, Shannon – 96% | |
| control and pre‐production drilling. | Minimum width reflected by SMU block | |
| The major assumptions made and | (5m) | |
| Mineral Resource model used for pit | Inferred Resources were tested, but are not | |
| and stope optimisation (if | used or included in optimisation or final | |
| appropriate). | designs | |
| The mining dilution factors used. | No additional infrastructure required | |
| The mining recovery factors used. | ||
| Any minimum mining widths used. | ||
| The manner in which Inferred Mineral | ||
| Resources are utilised in mining | ||
| studies and the sensitivity of the | ||
| outcome to their inclusion. | ||
| The infrastructure requirements of | ||
| the selected mining methods. | ||
| Metallurgical factors or | The metallurgical process proposed | Processing by conventional CIL/CIP gold |
| assumptions | and the appropriateness of that | milling at Mt Magnet Checkers Mill |
| process to the style of mineralisation | Well‐tested existing technology | |
| Whether the metallurgical process is | Typical Mt Magnet recovery of 92% applied. | |
| well‐tested technology or novel in | No deleterious elements are present | |
| nature. | ||
| The nature, amount and | ||
| representativeness of metallurgical | ||
| test work undertaken, the nature of | ||
| the metallurgical domaining applied | ||
| and the corresponding metallurgical | ||
| recovery factors applied. |
33
| Any assumptions or allowances made | ||
|---|---|---|
| for deleterious elements. | ||
| The existence of any bulk sample or | ||
| pilot scale test work and the degree | ||
| to which such samples are considered | ||
| representative of the orebody as a | ||
| whole. | ||
| For minerals that are defined by a | ||
| specification, has the ore reserve | ||
| estimation been based on the | ||
| appropriate mineralogy to meet the | ||
| specifications? | ||
| Environmental | The status of studies of potential | Environmental studies completed and |
| environmental impacts of the mining | Mining Proposal lodged | |
| and processing operation. Details of | ||
| waste rock characterisation and the | ||
| consideration of potential sites, | ||
| status of design options considered | ||
| and, where applicable, the status of | ||
| approvals for process residue storage | ||
| and waste dumps should be reported. | ||
| Infrastructure | The existence of appropriate | All infrastructure in place as part of current |
| infrastructure: availability of land for | Mt Magnet gold operations | |
| plant development, power, water, | The project has low infrastructure | |
| transportation (particularly for bulk | requirements of a temporary nature | |
| commodities), labour, | ||
| accommodation; or the ease with | ||
| which the infrastructure can be | ||
| provided, or accessed. | ||
| Costs | The derivation of, or assumptions | Little or no capital expenditure required |
| made, regarding projected capital | Significant pit pre‐strip costs exist | |
| costs in the study. The methodology used to estimate operating costs. Allowances made for the content of |
Operating costs based on current Mt Magnet milling costs and mining rates No deleterious elements present |
|
| deleterious elements. | Using prior 6‐month average gold price | |
| The derivation of assumptions made | Cost models use Australian dollars | |
| of metal or commodity price(s), for | Treatment costs based on known current | |
| the principal minerals and co‐ products. The source of exchange rates used in |
milling costs. No penalties or specifications State royalty of 2.5% used |
|
| the study. | ||
| Derivation of transportation charges. | ||
| The basis for forecasting or source of | ||
| treatment and refining charges, | ||
| penalties for failure to meet | ||
| specification, etc. | ||
| The allowances made for royalties | ||
| payable, both Government and | ||
| private. | ||
| Revenue Factors | The derivation of, or assumptions | Gold price of A$1,600/oz used |
| made regarding revenue factors | ||
| including head grade, metal or | ||
| commodity price(s) exchange rates, | ||
| transportation and treatment | ||
| charges, penalties, net smelter |
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| returns, etc. | ||
|---|---|---|
| The derivation of assumptions made | ||
| of metal or commodity price(s), for | ||
| the principal metals, minerals and co‐ | ||
| products. | ||
| Market Assessment | The demand, supply and stock | Doré is sold direct to the Perth Mint at spot |
| situation for the particular | price | |
| commodity, consumption trends and factors likely to affect supply and demand into the future. |
Market window unlikely to change Price is likely to go up, down or remain same |
|
| A customer and competitor analysis | Not industrial mineral | |
| along with the identification of likely | ||
| market windows for the product. | ||
| Price and volume forecasts and the | ||
| basis for these forecasts. | ||
| For industrial minerals the customer | ||
| specification, testing and acceptance | ||
| requirements prior to a supply | ||
| contract. | ||
| Economic | The inputs to the economic analysis | No NPV applied |
| to produce the net present value | Projects are relatively short life at around 1‐ | |
| (NPV) in the study, the source and | 2 years | |
| confidence of these economic inputs | ||
| including estimated inflation, | ||
| discount rate, etc. | ||
| NPV ranges and sensitivity to | ||
| variations in the significant | ||
| assumptions and inputs. | ||
| Social | The status of agreements with key | Stakeholders have been consulted |
| stakeholders and matters leading to | Heritage surveys completed | |
| social licence to operate. | ||
| Other | To the extent relevant, the impact of | No material risks are identified |
| the following on the project and/or | Primary risks are Resource accuracy and gold | |
| on the estimation and classification | price | |
| of the Ore Reserves: | ||
| Any identified material naturally | ||
| occurring risks. | ||
| The status of material legal | ||
| agreements and marketing | ||
| arrangements. | ||
| The status of governmental | ||
| agreements and approvals critical to | ||
| the viability of the project, such as | ||
| mineral tenement status, and | ||
| government and statutory approvals. | ||
| There must be reasonable grounds to | ||
| expect that all necessary Government | ||
| approvals will be received within the | ||
| timeframes anticipated in the Pre‐ | ||
| Feasibility or Feasibility study. | ||
| Highlight and discuss the materiality | ||
| of any unresolved matter that is | ||
| dependent on a third party on which | ||
| extraction of the reserve is | ||
| contingent. |
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| Classification | The basis for the classification of the | Reserves are classified according to |
|---|---|---|
| Ore Reserves into varying confidence | Resource classifications | |
| categories. | They reflect the Competent Person’s view | |
| Whether the result appropriately | No Measured Resource exists. All Reserves | |
| reflects the Competent Person’s view | are Probable category and based on | |
| of the deposit. | Indicated Resources | |
| The proportion of Probable Ore | ||
| Reserves that have been derived from | ||
| Measured Mineral Resources (if any) | ||
| Audits or reviews | The results of any audits or reviews of | No audits carried out |
| Ore Reserve estimates. | ||
| Discussion of relative | Where appropriate a statement of | Confidence is in line with gold industry |
| accuracy/confidence | the relative accuracy and confidence | standards and the company’s aim to provide |
| level in the Ore Reserve estimate | effective prediction for current and future | |
| using an approach or procedure | mining projects. No statistical quantification | |
| deemed appropriate by the | of confidence limits has been applied | |
| Competent Person. For example, the | Estimates are global | |
| application of statistical or | The Reserve is most sensitive to; a) resource | |
| geostatistical procedures to quantify | grade accuracy, b) gold price | |
| the relative accuracy of the reserve | Reserve confidence is reflected by the | |
| within stated confidence limits, or, if | Probable category applied, which in turn | |
| such an approach is not deemed | reflects the confidence of the Mineral | |
| appropriate, a qualitative discussion | Resource | |
| of the factors which could affect the | Recent ore production from Mt Magnet | |
| relative accuracy and confidence of | Perseverance and Titan pits is reconciling | |
| the estimate. | well. | |
| The statement should specify whether | ||
| it relates to global or local estimates, | ||
| and, if local, state the relevant | ||
| tonnages, which should be relevant | ||
| to technical and economic evaluation. | ||
| Documentation should include | ||
| assumptions made and the | ||
| procedures used. | ||
| Accuracy and confidence discussions | ||
| should extend to specific discussions | ||
| of any applied Modifying Factors that | ||
| may have a material impact on Ore | ||
| Reserve viability, or for which there | ||
| are remaining areas of uncertainty at | ||
| the current study stage. | ||
| It is recognised that this may not be | ||
| possible or appropriate in all | ||
| circumstances. These statements of | ||
| relative accuracy and confidence of | ||
| the estimate should be compared | ||
| with production data, where | ||
| available. |
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