Wrap Text
More Outstanding Hits at Okiep Copper Project, Flat Mine - East-High Grade Potential Confirmed
Orion Minerals Limited
Incorporated in the Commonwealth of Australia
Australian Company Number 098 939 274
ASX share code: ORN
JSE share code: ORN
ISIN: AU000000ORN1
More Outstanding Hits at Okiep Copper Project, Flat Mine East – High-Grade Potential Confirmed
9.27m at 3.01% Cu and 15m at 4.80% Cu within 78m averaging 1.57% Cu
- Assay results received for a further three diamond drill holes at Flat Mine East, building on the
exceptional assays reported on 22 April 2024:
o Drill hole OFMED154: 9.27m at 3.01% Cu and 15.00m at 4.80% Cu within 78.00m at 1.57% Cu,
located 50m along strike from previously reported hole OFMED153 (49m at 4.89% Cu);
o Drill hole OFMED153 (final assays received): increased to 49.35m at 5.05% Cu including 21.66m at
9.41% Cu; and
o Drill hole OFMED155: 50.00m at 1.09% Cu including 18m at 1.44% Cu within 116.9m at 0.75% Cu.
- Flat Mine East, which is a virgin discovery that is blind to surface, will form a key part of Orion's early
production plan for the Okiep Copper Project.
- The intersections achieved to date support geological and grade distribution interpretations that were
incorporated in Mineral Resource modelling and estimation for the Okiep Project.
- Drilling of a planned eleven diamond drill holes totalling 5,800m at Flat Mine East, Flat Mine South and
Flat Mine North to confirm historical drilling results, provide geotechnical information and generate
material for additional confirmatory metallurgical test work, are nearing completion.
Orion's Managing Director and CEO, Errol Smart, commented:
"These drilling results further amplify the potential for the Flat Mines orebodies to replicate the typical nature of
Okiep copper intrusive mineralisation, where zones of very high-grade mineralisation are commonly contained
within large bodies of moderate grade. This clearly shows why this district has been such a prolific producer of
copper for such a long period of time.
"We have been frustrated by the slow turnaround from accredited laboratories, which are overloaded with
exploration samples. This is indicative of the intensity of activity in the copper exploration industry and is in itself
an indicator of the challenges involved in accelerating mine development to counter the global metal supply
deficit that is developing.
"We are pleased to be nearing completion of our Bankable Feasibility Studies so that we can progress to project
finance and mine development on our brownfields redevelopment sites, in parallel with ongoing drilling and
exploration to expand our resource base on our surrounding highly prospective mineral rights."
Orion Minerals Limited (ASX/JSE: ORN) (Orion or Company) is pleased to report further outstanding assay results
from the confirmation diamond drilling program in the Flat Mines area at its Okiep Copper Project (OCP) in the
Northern Cape, South Africa.
The latest results add further momentum to Orion's development strategy for the OCP, building on the initial
results reported on 22 April 2024 and confirming the geology and endowment of the Flat Mines Area.
The OCP ground holdings of 641km² covers the majority of the area where a total of 105Mt is reported to have
been mined in the district over the past 100 years (refer ASX/JSE release 21 May 2021). The Flat Mines area and
the current drilling program fall entirely within the executed Mining Right.
Results received to date from the last three of the five planned and completed holes at Flat Mine East (FME)
have confirmed historical information from drilling by Goldfields of South Africa in the 1990's, used in the Mineral
Resource update (refer ASX/JSE release 28 August 2023) where 9.4Mt at 1.3% Cu was reported for the Flat Mines
including 4.4Mt at 1.3% Cu at FME.
Flat Mines Drilling Program
A diamond drilling program commenced in the Flat Mines area of the OCP in February 2024. A total of 11
diamond core drill holes are planned at FME, Flat Mine South (FMS) and Flat Mine North (FMN) comprising a total
of approximately 5,800m. This total includes a non-directional deflection for each hole.
The program was designed to confirm historical drilling information and resultant interpretations, provide
geotechnical information and deliver additional material for confirmatory metallurgical test work.
The planned program comprised five holes at FME, four holes at FMS and two holes at FMN (Figures 2 and 3,
Table 1). The holes were specifically designed to best cover the areas that contribute most significantly to the
overall estimated Indicated Mineral Resource.
All holes include a deflection (or wedge) through the mineralisation to provide the additional material for
confirmatory metallurgical test work.
Table 1: Summary table of current drilling and assay status.
Prospect Hole ID Drilling Status Assay Status
Flat Mine East OFMED151 Complete Received
Flat Mine East OFMED152 Complete Received
Flat Mine East OFMED153 Complete Received
Flat Mine East OFMED154 Complete Received
Flat Mine East OFMED155 Complete Received
Flat Mine South OFMSD076 Complete Pending
Flat Mine South OFMSD077 Complete Pending
Flat Mine South OFMSD078 Complete Pending
Flat Mine South OFMSD079 Current Drilling
Flat Mine North OFMND242 Complete Pending
Flat Mine North OFMND243 Current Drilling
Assay results from the three remaining holes completed at FME have been received and are summarised in Table
2. One remaining sample from previously reported OFMED153 was pending analysis (refer ASX/JSE release 22
April 2024) and results from the complete intersection are included in Appendix 1.
Drill hole OFMED152 returned 44.00m at 1.22% Cu from 194.00m, including 23.00m at 1.45% Cu from 215.00m
(Table 2). This is all within a broad zone of elevated copper of 82.00m at 0.83% Cu from 194.00m. Historical hole
FME113 approximately 10m away from OFMED152 intersected 51.00m at 1.12% from 183.50m.
Drill hole OFMED154 returned 9.27m at 3.01% Cu from 185.00m and 15.00m at 4.80% Cu from 248.00m (Table 2).
This is all within a broad zone of elevated copper of 78.00m at 1.57% Cu from 185.00m. Historical hole FME100
approximately 5m away from ODMED154 intersected 6.50m at 4.41% Cu from 190.00m and 19.00m at 3.81% Cu
from 248.00m.
Drill hole OFMED155 returned 50.00m at 1.09% Cu from 214.00m, including 18.00m at 1.44% Cu from 252m (Table
2). This is all within a broad zone of elevated copper of 116.90m at 0.75% Cu from 188.00m. Historical hole FME039
approximately 20m from OFMED155 away intersected 48.56m at 0.92% from 214.00m.
Drill hole OFMED153 previously reported an intersection of 49.00m at 4.89% Cu from 231.00m to 280.00m, including
10.23m at 12.47% Cu (refer ASX/JSE release 22 April 2024). One highly mineralised sample of 0.35m length at the
bottom of the intersection from 280.00m that was pending at the time of the release has subsequently reported
an assay result of 28.00% Cu. Including this final sample gives an intersection of 49.35m at 5.05% Cu from 231.00m
which includes 21.66m at 9.41% Cu from 258.69m.
Significant widths of waste granitic material are included within the reported intersection widths, providing
opportunities for upgrading of material through modern XRF ore sorting techniques to reject internal waste before
milling.
On completion of the drilling program, the geological and mineralisation envelope interpretations will be
reviewed and adjusted where necessary, followed by an update of the Mineral Resource Estimate including the
new information. New geotechnical information will be used for input to mine design.
Planned confirmatory metallurgical test work includes comminution, flotation optimisation, tailings
characterisation and XRF sorting.
All available mother holes and deflections were scanned on site by a RADOS™ XRF core scanner. The process
included calibration using ICP assays for holes OFMED151, OFMED152 and OFMED153. The RADOS™ instrument
scans continuously along the core, allocating a reading approximately every 1cm. These readings have been
composited to 1m in order to eliminate spikes and to plot with ICP assays (Figures 4 and 5). Results showed a high
correlation coefficient of 0.93.
Geotechnical logging on oriented core has been completed for all holes. Samples from the deflections have
been submitted to engineering laboratories for test work, which will include point load strength tests and triaxial
compressive strength tests. This data will be used for 3-D modelling to inform the stoping layouts and mine design
parameters from a rock strength perspective.
Figure 1: Drilling at FME.
Figure 2: Plan showing historical and Orion drill holes, mineralisation envelope interpretations and extent of the Mining Right.
Figure 3: Plan view of FME, with sectional view inset, showing historical and Orion drill holes and mineralisation envelope
interpretations.
Assay Results
Results received are summarised in Table 2 below. Further results from drilling at FMN and FMS are pending.
Table 2: Summary table of drill results to date for FME prospect (a minimum cut-off of 0.7% Cu with maximum 3m internal
waste allowed). Intersections and inclusions with grades mostly above 1% Cu are tabulated. The data was not capped.
Note widths are drill widths.
Mineralisation
Hole ID
Notes From (m) To (m) Interval (m) % Cu
260.00 285.22 25.22 0.97
OFMED151
Including 275.00 285.22 10.22 1.35
194.00 202.00 8.00 1.59
OFMED152
215.00 238.00 23.00 1.45
231.00 280.35 49.35 5.05
Including 231.00 250.00 19.00 2.14
Including 253.84 256.25 2.41 1.82
OFMED153
Including 258.69 280.35 21.66 9.41
Including 258.69 266.78 8.09 8.18
Including 269.77 280.35 10.58 12.99
185.00 194.27 9.27 3.01
OFMED154
248.00 263.00 15.00 4.80
214.00 235.00 21.00 1.12
OFMED155
246.00 264.00 18.00 1.44
Table 3: Comparison of % Cu grades and widths for OFMED152, OFMED154, OFMED155 and nearest neighbour historical
Goldfield's drilled holes FME133, FME100 and FME039.
Orion Hole Historical Hole Intersection
Separation
From Intersection From Intersection Distance
Hole ID To (m) % Cu Hole ID To (m) % Cu (m)
(m) Width (m) (m) Width (m)
OFMED152 194.00 238.00 44.00 1.22 FME113 183.50 234.50 51.00 1.12 10.00
185.00 194.27 9.27 3.01 190.00 196.50 6.50 4.41 5.00
OFMED154 FME100
248.00 263.00 15.00 4.8 248.00 267.00 19.00 3.81 5.00
OFMED155 214.00 264.00 50.00 1.09 FME039 214.00 262.56 48.56 0.92 20.00
RADOS™ XRF scan results of holes OFMED0151, OFMED152 and OFMED153 plotted with ALS ICP assay results are
shown in Figures 4 and 5. At the time of scanning, core for OFMED154 and OFMED155 was not available.
Figure 4: RADOS™ XRF scan readings versus ICP assay results for OFMED151, OFMED152 and OFMED153.
Figure 5: ICP assay results plotted against RADOS™ XRF scan readings for OFMED151, OFMED152 and OFMED153.
The RADOS™ scans show very promising ability for the scanner to accurately recognise waste xenoliths within
high or low grade mineralised intrusives. This is anticipated to facilitate the ability to sort and reject the waste that
is anticipated to be included in bulk mining methods that allow for optimum ore extraction at reduced cost,
before sorting of blasted and crushed ore to produce a pre-concentrate, before milling and flotation. Significant
benefits are anticipated for capital and operating costs of the milling and concentrator plants.
The sorted ore pre-concentrate is anticipated to yield significant benefits of reduced energy, water, reagent
consumptions and reduced tailings storage requirements. These all combine to minimise the environmental
impact for copper production.
For and on behalf of the Board.
Errol Smart
Managing Director and CEO
24 June 2024
ENQUIRIES
Investors Media JSE Sponsor
Errol Smart – Managing Director & CEO Nicholas Read Monique Martinez
Denis Waddell – Chairman Read Corporate, Australia Merchantec Capital
T: +61 (0) 3 8080 7170 T: +61 (0) 419 929 046 T: +27 (0) 11 325 6363
E: info@orionminerals.com.au E: nicholas@readcorporate.com.au E: monique.martinez@merchantec.com
Competent Persons Statement
The information in this report that relates to Exploration Results is based on information compiled by Mr Paul Matthews
(Pr.Sci.Nat.), a Competent Person who is a member of the South African Council for Natural Scientific Professionals, a
Recognised Professional Organisation (RPO). Mr Matthews is a full-time employee of Orion. Mr Matthews has 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 JORC Code. Mr Matthews consents to the
inclusion in this announcement of the matters based on his information in the form and context in which it appears.
Reference to Previous Report
Exploration results from drilling at Flat Mines Area were reported in ASX/JSE release of 22 April 2024: "Spectacular High-Grade
Copper Intercept at Okiep Project", available to the public on http://www.orionminerals.com.au/investors/asx-jse-
announcements/. Orion confirms that it is not aware of any new information or data that materially affects the form or context
in which the exploration results and supporting information were presented in the original ASX/JSE release.
Disclaimer
This release may include forward-looking statements. Such forward-looking statements may include, among other things,
statements regarding targets, estimates and assumptions in respect of metal production and prices, operating costs and
results, capital expenditures, mineral reserves and mineral resources and anticipated grades and recovery rates, and are or
may be based on assumptions and estimates related to future technical, economic, market, political, social and other
conditions. These forward-looking statements are based on management's expectations and beliefs concerning future
events. Forward-looking statements inherently involve subjective judgement and analysis and are necessarily subject to risks,
uncertainties and other factors, many of which are outside the control of Orion. Actual results and developments may vary
materially from those expressed in this release. Given these uncertainties, readers are cautioned not to place undue reliance
on such forward-looking statements. Orion makes no undertaking to subsequently update or revise the forward-looking
statements made in this release to reflect events or circumstances after the date of this release. All information in respect of
Exploration Results and other technical information should be read in conjunction with Competent Person Statements in this
release (where applicable). To the maximum extent permitted by law, Orion and any of its related bodies corporate and
affiliates and their officers, employees, agents, associates and advisers:
• disclaim any obligations or undertaking to release any updates or revisions to the information to reflect any change in
expectations or assumptions;
• do not make any representation or warranty, express or implied, as to the accuracy, reliability or completeness of the
information in this release, or likelihood of fulfilment of any forward-looking statement or any event or results expressed
or implied in any forward-looking statement; and
• disclaim all responsibility and liability for these forward-looking statements (including, without limitation, liability for
negligence).
Appendix 1: Drill hole collar information and assay results from drill program at Flat Mine East
Table 4: Drill hole collar information for FME prospect. Coordinates in WGS84 Hartebeesthoek 94 LO17
Hole ID Easting Northing RL Azimuth Dip Depth (m)
OFMED151 78,421 -3,270,401 971 180 -73 346.99
OFMED152 78,525 -3,270,443 966 180 -78 295.97
OFMED153 78,571 -3,270,399 978 180 -75 301.03
OFMED154 78,621 -3,270,385 968 184 -70 275.90
OFMED155 78,467 -3,270,440 973 184 -78 316.67
Table 5: OFMED152 Drill assay results.
Hole ID From (m) To (m) % Cu
OFMED152 187.00 188.00 0.16
OFMED152 188.00 189.00 0.06
OFMED152 189.00 190.00 0.06
OFMED152 190.00 191.00 0.11
OFMED152 191.00 192.00 0.11
OFMED152 192.00 193.00 0.16
OFMED152 193.00 194.00 0.20
OFMED152 194.00 195.00 2.27
OFMED152 195.00 196.00 2.73
OFMED152 196.00 197.00 1.84
OFMED152 197.00 198.00 1.80
OFMED152 198.00 199.00 1.53
OFMED152 199.00 200.00 0.81
OFMED152 200.00 201.00 0.78
OFMED152 201.00 202.00 0.95
OFMED152 202.00 203.00 0.51
OFMED152 203.00 204.00 0.51
OFMED152 204.00 205.00 0.50
OFMED152 205.00 206.00 0.39
OFMED152 206.00 207.00 0.37
OFMED152 207.00 208.00 0.48
OFMED152 208.00 209.00 0.91
OFMED152 209.00 210.00 0.78
OFMED152 210.00 211.00 0.69
OFMED152 211.00 212.00 0.51
OFMED152 212.00 213.00 0.77
OFMED152 213.00 214.00 0.47
OFMED152 214.00 215.00 0.75
OFMED152 215.00 216.00 1.27
OFMED152 216.00 217.00 1.59
OFMED152 217.00 218.00 1.42
OFMED152 218.00 219.00 0.85
OFMED152 219.00 220.00 0.78
Hole ID From (m) To (m) % Cu
OFMED152 220.00 221.00 1.21
OFMED152 221.00 222.00 3.67
OFMED152 222.00 223.00 2.75
OFMED152 223.00 224.00 2.20
OFMED152 224.00 225.00 0.82
OFMED152 225.00 226.00 2.27
OFMED152 226.00 227.00 1.69
OFMED152 227.00 228.00 0.94
OFMED152 228.00 229.00 0.54
OFMED152 229.00 230.00 0.41
OFMED152 230.00 231.00 0.55
OFMED152 231.00 232.00 1.03
OFMED152 232.00 233.00 1.00
OFMED152 233.00 234.00 2.72
OFMED152 234.00 235.00 1.07
OFMED152 235.00 236.00 1.89
OFMED152 236.00 237.00 1.23
OFMED152 237.00 238.00 1.43
OFMED152 238.00 239.00 0.53
OFMED152 239.00 240.00 0.46
OFMED152 240.00 241.00 0.42
OFMED152 241.00 242.00 0.54
OFMED152 242.00 243.00 0.41
OFMED152 243.00 244.00 0.03
OFMED152 244.00 245.00 0.01
OFMED152 245.00 246.00 0.00
OFMED152 246.00 247.00 0.00
OFMED152 247.00 248.00 0.11
OFMED152 248.00 249.00 0.02
OFMED152 249.00 250.00 0.02
OFMED152 250.00 250.54 0.01
OFMED152 250.54 251.00 0.01
OFMED152 251.00 252.00 0.00
OFMED152 252.00 253.00 0.00
OFMED152 253.00 253.97 0.65
OFMED152 253.97 254.84 0.79
OFMED152 254.84 255.41 0.06
OFMED152 255.41 256.00 0.17
OFMED152 256.00 257.00 0.93
OFMED152 257.00 258.00 0.56
OFMED152 258.00 259.00 0.70
OFMED152 259.00 260.00 0.74
OFMED152 260.00 261.00 0.87
OFMED152 261.00 262.00 0.21
OFMED152 262.00 263.00 0.32
OFMED152 263.00 264.00 0.53
OFMED152 264.00 265.00 0.25
Hole ID From (m) To (m) % Cu
OFMED152 265.00 266.00 0.29
OFMED152 266.00 267.00 0.87
OFMED152 267.00 268.00 0.53
OFMED152 268.00 269.00 0.35
OFMED152 269.00 270.00 0.21
OFMED152 270.00 271.00 0.19
OFMED152 271.00 272.00 0.67
OFMED152 272.00 273.00 0.55
OFMED152 273.00 274.00 0.55
OFMED152 274.00 275.00 0.39
OFMED152 275.00 276.00 1.13
OFMED152 276.00 277.00 0.18
OFMED152 277.00 278.00 0.04
OFMED152 278.00 279.00 0.15
OFMED152 279.00 280.00 1.10
OFMED152 280.00 281.00 0.35
OFMED152 281.00 282.00 0.32
OFMED152 282.00 283.00 0.00
OFMED152 283.00 284.00 0.01
OFMED152 284.00 285.00 0.08
OFMED152 285.00 286.00 0.12
OFMED152 286.00 287.00 0.09
OFMED152 287.00 288.00 0.01
Table 6: OFMED153 Drill assay results not previously reported.
Hole ID From (m) To (m) % Cu
OFMED153 280.00 280.35 28.00
OFMED153 281.44 282.00 0.05
OFMED153 282.00 283.00 0.03
OFMED153 283.00 284.00 0.01
Table 7: OFMED154 Drill assay results.
Hole ID From (m) To (m) % Cu
OFMED154 182.00 183.00 0.01
OFMED154 183.00 184.00 0.39
OFMED154 184.00 185.00 0.02
OFMED154 185.00 186.00 0.84
OFMED154 186.00 187.00 0.41
OFMED154 187.00 187.84 1.17
OFMED154 187.84 189.00 11.85
OFMED154 189.00 189.70 6.48
OFMED154 189.70 190.32 4.52
OFMED154 190.32 191.00 0.06
OFMED154 191.00 192.00 0.51
Hole ID From (m) To (m) % Cu
OFMED154 192.00 193.00 2.04
OFMED154 193.00 194.27 1.61
OFMED154 194.27 195.00 0.07
OFMED154 195.00 196.00 0.03
OFMED154 196.00 197.00 0.02
OFMED154 197.00 197.70 0.04
OFMED154 197.70 199.00 0.30
OFMED154 199.00 200.00 0.04
OFMED154 200.00 201.00 0.00
OFMED154 201.00 202.00 0.00
OFMED154 202.00 203.00 0.00
OFMED154 203.00 204.00 0.01
OFMED154 204.00 205.00 0.01
OFMED154 205.00 206.00 1.77
OFMED154 206.00 207.00 0.04
OFMED154 207.00 208.00 0.00
OFMED154 208.00 208.86 0.48
OFMED154 208.86 210.00 2.75
OFMED154 210.00 211.00 0.55
OFMED154 211.00 212.00 0.38
OFMED154 212.00 213.00 0.40
OFMED154 213.00 214.00 0.24
OFMED154 214.00 215.00 0.09
OFMED154 215.00 216.00 0.09
OFMED154 216.00 217.00 0.35
OFMED154 217.00 218.00 0.18
OFMED154 218.00 219.00 0.30
OFMED154 219.00 220.00 0.29
OFMED154 220.00 221.00 0.27
OFMED154 221.00 222.00 0.32
OFMED154 222.00 223.00 0.29
OFMED154 223.00 224.00 0.43
OFMED154 224.00 225.00 0.38
OFMED154 225.00 226.00 0.56
OFMED154 226.00 227.00 1.30
OFMED154 227.00 228.00 0.66
OFMED154 228.00 229.00 0.52
OFMED154 229.00 230.00 0.41
OFMED154 230.00 231.00 0.53
OFMED154 231.00 232.00 0.38
OFMED154 232.00 233.00 0.24
OFMED154 233.00 234.00 0.31
OFMED154 234.00 235.00 0.31
OFMED154 235.00 236.00 0.38
OFMED154 236.00 237.00 0.40
OFMED154 237.00 238.00 0.37
OFMED154 238.00 239.00 0.43
Hole ID From (m) To (m) % Cu
OFMED154 239.00 240.00 0.50
OFMED154 240.00 241.00 0.74
OFMED154 241.00 242.00 0.50
OFMED154 242.00 243.00 0.59
OFMED154 243.00 244.00 0.44
OFMED154 244.00 245.00 0.43
OFMED154 245.00 246.00 0.55
OFMED154 246.00 247.00 0.59
OFMED154 247.00 248.00 0.66
OFMED154 248.00 249.00 5.70
OFMED154 249.00 250.00 5.13
OFMED154 250.00 251.00 7.50
OFMED154 251.00 252.00 6.26
OFMED154 252.00 253.00 7.17
OFMED154 253.00 254.00 4.16
OFMED154 254.00 255.00 10.15
OFMED154 255.00 256.00 2.37
OFMED154 256.00 257.00 2.02
OFMED154 257.00 258.00 2.02
OFMED154 258.00 259.00 2.33
OFMED154 259.00 260.00 5.85
OFMED154 260.00 261.00 3.94
OFMED154 261.00 262.00 5.29
OFMED154 262.00 263.00 2.13
OFMED154 263.00 264.00 0.02
OFMED154 264.00 265.00 0.05
OFMED154 265.00 266.00 0.01
OFMED154 266.00 267.00 0.08
Table 8: OFMED155 Drill assay results.
Hole ID From (m) To (m) % Cu
OFMED155 188.00 189.00 0.97
OFMED155 189.00 190.00 0.62
OFMED155 190.00 191.00 0.56
OFMED155 191.00 192.00 0.63
OFMED155 192.00 193.00 0.49
OFMED155 193.00 194.00 0.26
OFMED155 194.00 195.00 0.41
OFMED155 195.00 196.00 0.34
OFMED155 196.00 197.00 0.54
OFMED155 197.00 198.00 0.91
OFMED155 198.00 199.00 0.85
OFMED155 199.00 200.00 0.89
OFMED155 200.00 201.00 1.57
OFMED155 201.00 202.00 0.64
OFMED155 202.00 203.00 0.53
OFMED155 203.00 204.00 0.30
Hole ID From (m) To (m) % Cu
OFMED155 204.00 205.00 0.38
OFMED155 205.00 206.00 0.46
OFMED155 206.00 207.00 0.31
OFMED155 207.00 208.00 0.47
OFMED155 208.00 209.00 0.49
OFMED155 209.00 210.00 0.46
OFMED155 210.00 211.00 0.46
OFMED155 211.00 212.00 0.50
OFMED155 212.00 213.00 0.45
OFMED155 213.00 214.00 0.61
OFMED155 214.00 215.00 1.04
OFMED155 215.00 216.00 0.88
OFMED155 216.00 217.00 0.92
OFMED155 217.00 218.00 1.28
OFMED155 218.00 219.00 1.38
OFMED155 219.00 220.00 1.78
OFMED155 220.00 221.00 1.39
OFMED155 221.00 222.00 1.19
OFMED155 222.00 223.00 1.97
OFMED155 223.00 224.00 1.54
OFMED155 224.00 225.00 1.64
OFMED155 225.00 226.00 0.47
OFMED155 226.00 227.00 0.55
OFMED155 227.00 228.00 0.74
OFMED155 228.00 229.00 0.76
OFMED155 229.00 230.00 1.07
OFMED155 230.00 231.00 1.12
OFMED155 231.00 232.00 0.75
OFMED155 232.00 233.00 0.85
OFMED155 233.00 234.00 0.67
OFMED155 234.00 235.00 1.46
OFMED155 235.00 236.00 0.70
OFMED155 236.00 237.00 0.63
OFMED155 237.00 238.00 0.35
OFMED155 238.00 239.00 0.33
OFMED155 239.00 240.00 0.54
OFMED155 240.00 241.00 0.49
OFMED155 241.00 242.00 0.38
OFMED155 242.00 243.00 0.51
OFMED155 243.00 244.00 0.04
OFMED155 244.00 245.00 0.31
OFMED155 245.00 246.00 0.65
OFMED155 246.00 247.00 0.96
OFMED155 247.00 248.00 1.44
OFMED155 248.00 249.00 0.43
OFMED155 249.00 250.00 0.96
OFMED155 250.00 251.00 1.06
Hole ID From (m) To (m) % Cu
OFMED155 251.00 252.00 0.16
OFMED155 252.00 253.00 1.29
OFMED155 253.00 254.00 3.85
OFMED155 254.00 255.00 2.40
OFMED155 255.00 256.00 1.84
OFMED155 256.00 257.00 1.39
OFMED155 257.00 258.00 1.17
OFMED155 258.00 259.00 1.88
OFMED155 259.00 260.00 2.93
OFMED155 260.00 261.00 0.88
OFMED155 261.00 262.00 0.41
OFMED155 262.00 263.00 1.96
OFMED155 263.00 264.00 1.00
OFMED155 264.00 265.00 0.59
OFMED155 265.00 266.00 0.41
OFMED155 266.00 267.00 0.90
OFMED155 267.00 268.00 0.33
OFMED155 268.00 269.00 0.31
OFMED155 269.00 270.00 0.66
OFMED155 270.00 270.91 1.40
OFMED155 270.91 272.00 0.12
OFMED155 272.00 273.00 0.08
OFMED155 273.00 274.00 0.37
OFMED155 274.00 275.00 0.32
OFMED155 275.00 275.52 0.14
OFMED155 275.52 276.52 0.49
OFMED155 276.52 277.00 0.05
OFMED155 277.00 278.00 0.03
OFMED155 278.00 279.00 0.01
OFMED155 279.00 280.00 0.01
OFMED155 280.00 281.00 0.04
OFMED155 281.00 281.64 0.03
OFMED155 281.64 282.28 0.05
OFMED155 282.28 283.52 0.63
OFMED155 283.52 284.26 0.12
OFMED155 284.26 285.26 0.18
OFMED155 285.26 286.26 0.30
OFMED155 286.26 287.26 0.79
OFMED155 287.26 288.11 1.30
OFMED155 288.11 289.00 0.16
OFMED155 289.00 290.00 0.40
OFMED155 290.00 291.00 0.06
OFMED155 291.00 292.00 0.63
OFMED155 292.00 293.00 0.26
OFMED155 293.00 294.00 0.29
OFMED155 294.00 295.00 0.65
OFMED155 295.00 296.00 0.12
Hole ID From (m) To (m) % Cu
OFMED155 296.00 297.00 0.18
OFMED155 297.00 298.00 0.41
OFMED155 298.00 299.00 0.53
OFMED155 299.00 300.00 0.37
OFMED155 300.00 301.00 0.86
OFMED155 301.00 302.00 0.38
OFMED155 302.00 303.00 1.21
OFMED155 303.00 304.00 1.28
OFMED155 304.00 304.90 0.89
OFMED155 304.90 306.00 0.04
OFMED155 306.00 307.00 0.11
OFMED155 307.00 308.00 0.02
OFMED155 308.00 309.00 0.01
OFMED155 309.00 310.00 0.02
Appendix 2: The following tables are provided in accordance with the JORC Code (2012) requirements for the reporting of Exploration Results from the
Okiep Copper Project.
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
Criteria JORC Code explanation Commentary
Sampling techniques • Nature and quality of sampling (e.g. cut channels, random chips, or • Sampling was carried out using industry standard procedures. NQ-size
specific specialised industry standard measurement tools appropriate to diamond drill cores were longitudinally split in half using a diamond core
the minerals under investigation, such as down hole gamma sondes, or cutting machine.
handheld XRF instruments, etc). These examples should not be taken as • HQ core size was only drilled in the upper weathered portion and no HQ
limiting the broad meaning of sampling. core was sampled.
• Include reference to measures taken to ensure sample representivity • One-metre sample length was taken in most cases. Sample lengths
and the appropriate calibration of any measurement tools or systems were varied to honour geological and mineralisation boundaries, with
used. a maximum sample size of 1.27m and a minimum sample size of 46cm.
• Aspects of the determination of mineralisation that are Material to the • Areas of sampling were selected based on visual observations and
Public Report. readings from a handheld Niton XL3t 500 XRF instrument (standard
• In cases where 'industry standard' work has been done this would be analytical range >25 elements from S to U with additional elements Mg, Al,
relatively simple (eg 'reverse circulation drilling was used to obtain 1 m Si and P via helium purge).
samples from which 3 kg was pulverised to produce a 30 g 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 (eg submarine nodules) may
warrant disclosure of detailed information.
Drilling techniques • Drill type (eg core, reverse circulation, open-hole hammer, rotary air • Diamond core drilling was undertaken.
blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or • HQ and NQ size core was drilled using a standard tube. HQ core size
standard tube, depth of diamond tails, face-sampling bit or other type, was only drilled in the upper weathered portion of approximately 6m. No
whether core is oriented and if so, by what method, etc). Cu mineralisation was visually identified in the HQ core and no HQ core
was sampled.
• Core was oriented using a Reflex ACT III™.
Criteria JORC Code explanation Commentary
Drill sample recovery • Method of recording and assessing core and chip sample recoveries • Core 'stick-ups' reflecting the depth of the drill hole are recorded at the rig
and results assessed. at the end of each core run. A block with the depth of the hole written
• Measures taken to maximise sample recovery and ensure on it is placed in the core box at the end of each run. At the core yard,
representative nature of the samples. the length of core in the core box is measured for each run. The measured
length of core is subtracted from the length of the run as recorded from
• Whether a relationship exists between sample recovery and grade
the stick-up measured at the rig to determine the core loss.
and whether sample bias may have occurred due to preferential
loss/gain of fine/coarse material. • Core recovery was found to be very good (>98%) within the mineralised
zone.
• Ground conditions below the weathered zone were very good.
• No obvious relationship exists between sample recovery and grade.
• No core/sample loss or gain which could result in sample bias.
Logging • Whether core and chip samples have been geologically and • Core of the entire hole length was geologically logged by qualified
geotechnically logged to a level of detail to support appropriate geologists.
Mineral Resource estimation, mining studies and metallurgical • The core was logged to a level of detail that is sufficient to support
studies. appropriate Mineral Resource estimation, mining studies and
• Whether logging is qualitative or quantitative in nature. Core (or metallurgical studies.
costean, channel, etc) photography. • Geological logging was qualitative and was carried out using a
• The total length and percentage of the relevant intersections logged. standard sheet with a set of standard logging codes to describe
lithology, structure and mineralisation. The logging sheet allows for free-
form description to note any unusual features.
• Geological logs were captured electronically.
• All cores were photographed before and after sampling.
• Three diamond holes, totalling 888.54m core were logged. Of this,
approximately 368m are ultramafic/mafic lithologies primarily hosting the
Cu mineralisation.
• Geotechnical logging was completed on oriented core from
deflections off the mother hole. The data collected per drill run
consisted of core recovery, length of core greater than ten
centimetres, longest piece, fracture count, alpha and beta angles for
all joint types and lithological contacts, joint infill types and their
strength as well as nature of joint surface.
• Geotechnical samples have been submitted to Rocklabs for test work
including point load test, uniaxial compressive strength test (UCS),
triaxial compression test (TCS), base friction angle test (BFA), uniaxial
tensile strength (UTS), point load test (PLT), shear test on joints and
density test.
Criteria JORC Code explanation Commentary
Sub-sampling • If core, whether cut or sawn and whether quarter, half or all core • NQ core was cut, and half core was taken as sample with quarter core
techniques and taken. for duplicates.
sample preparation If non-core, whether riffled, tube sampled, rotary split, etc and
• • HQ core size was only drilled in the upper weathered portion and no HQ
whether sampled wet or dry. core was sampled.
• For all sample types, the nature, quality and appropriateness of the • Sample preparation was undertaken at ALS Laboratory Johannesburg
sample preparation technique. (ALS), an ISO accredited laboratory, and is considered appropriate. ALS
• Quality control procedures adopted for all sub-sampling stages to utilises industry best practice for sample preparation for analysis
maximise representivity of samples. involving drying of samples, weighing samples, crushing to <2mm if
required. Crushed samples are riffle-split and a 250g portion pulverised with
• Measures taken to ensure that the sampling is representative of the in situ
+85% passing through 75 microns.
material collected, including for instance results for field
duplicate/second-half sampling. • Crushing and pulverising QC tests were applied by ALS and found
acceptable.
• Whether sample sizes are appropriate to the grain size of the material
being sampled. • Quarter core field duplicates were taken for 11 samples.
• All sample sizes are deemed appropriate.
Quality of assay data • The nature, quality and appropriateness of the assaying and • Samples submitted to ALS were analysed for base metals and gold.
and laboratory tests laboratory procedures used and whether the technique is considered • All samples were analysed by an appropriate high-grade aqua regia
partial or total. ICP-AES method, ALS code ME-ICP41a.
• For geophysical tools, spectrometers, handheld XRF instruments, etc, the • Samples where assays returned >5% Cu were re-assayed by aqua regia
parameters used in determining the analysis including instrument make digestion and ICP-AES method, ALS code MEOG-46.
and model, reading times, calibrations factors applied and their
derivation, etc • Samples were assayed for gold by fire assay and AAS, ALS code AU-
AA25 method.
• Nature of quality control procedures adopted (e.g. standards, blanks,
duplicates, external laboratory checks) and whether acceptable • Orion inserted CRMs every 10th sample. A total of thirty CRMs were
levels of accuracy (ie lack of bias) and precision have been inserted. CRMs were alternated throughout the sample stream and
established. where possible matched to the sample material being analysed.
• Three CRMs were used. AMIS0399 (1.014 %Cu), AMIS0809 (2.97 %Cu) and AMIS088
(0.3 %Cu).
• All thirty CRMs returned acceptable results within two Standard Deviations
of the CRM average.
• Chip blanks are inserted at the beginning of each batch and after any
sample that may be considered high grade. A total of seventeen blanks
were used. Acceptable results were returned indicating no
contamination.
• The laboratory conducts their own checks which are also monitored.
The accuracy and precision of the geochemical data reported on has
deemed to be acceptable.
• No external laboratory checks have been carried out at this stage.
Criteria JORC Code explanation Commentary
Verification of • The verification of significant intersections by either independent or • Orion's exploration geologist personally supervised the drilling and
Sampling and assaying alternative company personnel. sampling along with a team of experienced geologists.
• The use of twinned holes. • Due to the high degrees of deviation in both dip and azimuth of the
• Documentation of primary data, data entry procedures, data historical holes, twin holes were not planned. However, with the high
verification, data storage (physical and electronic) protocols. density of historical drilling in some areas, some Orion drilled holes will
intersect mineralisation in relative proximity to historical intersections.
• Discuss any adjustment to assay data.
• Considering the irregular nature of the intrusive related mineralisation,
it can be noted that the intersections in the three Orion holes broadly
correlate with the historical drilling.
• The intersection in OFMED152 is approximately 10m from an
intersection in historical hole FME113. The intersection in OFMED154 is
approximately 5m from an intersection in historical hole FME100. The
intersection in OFMED155 is approximately 20m from an intersection in
historical hole FME039. Grades and widths in these intersections are
comparable.
• The CP has reviewed the raw laboratory data and confirmed the
calculation of the significant intersections.
• No adjustments have been made to the assay data.
• Core from OFMED151, OFMED152 and OFMED153 was scanned by a
RADOS™ XRF core scanning unit. Results from continuous scanning were
reported at 1cm intervals. A correlation coefficient of 0.93 was achieved
from plotting RADOS™ XRF readings against ICP assay results (Figures 4 and
5).
Location of data points • Accuracy and quality of surveys used to locate drill holes (collar and • Collar positions of the Flat Mine East prospect holes were located using a
down-hole surveys), trenches, mine workings and other locations used in hand-held Garmin GPS.
Mineral Resource estimation. • On completion drill collars are capped and labelled and will be
• Specification of the grid system used. surveyed by a qualified surveyor.
• Quality and adequacy of topographic control. • The local South African Lo17 WGS84 (Hartebeesthoek 94) grid system is
used.
• All the Flat Mine East holes were surveyed down-hole. A north seeking
Reflex SPRINTIQ gyro tool was used for the down-hole surveys.
Data spacing and • Data spacing for reporting of Exploration Results. • Holes were drilled along 50m spaced drill lines.
distribution
• Whether the data spacing and distribution is sufficient to establish the • Due to the irregular intrusive nature of the mineralisation, the historical
degree of geological and grade continuity appropriate for the drill spacing was kept relatively tight.
Mineral Resource and Ore Reserve estimation procedure(s) and • The spacing for Orion holes was designed to confirm historical
classifications applied. information, provide geotechnical information, and provide additional
• Whether sample compositing has been applied. samples for confirmatory metallurgical test work. The drill spacing is
Criteria JORC Code explanation Commentary
considered sufficient to establish the degree of geological and grade
continuity appropriate for the Mineral Resource and Ore Reserve
estimation and classifications.
• No samples were composited.
Orientation of data in • Whether the orientation of sampling achieves unbiased sampling of • To achieve unbiased sampling, drilling is oriented as close as practically
relation to geological possible structures and the extent to which this is known, considering the possible to perpendicular, or at a maximum achievable angle, to the
structure deposit type. attitude of the mineralisation. Drill holes were inclined between -70° to -
• If the relationship between the drilling orientation and the orientation of 78° degrees.
key mineralised structures is considered to have introduced a • No sampling bias is anticipated as a result of drill hole orientations.
sampling bias, this should be assessed and reported if material.
Sample security • The measures taken to ensure sample security. • Chain of custody is managed by the Company. Samples were stored
on site in a secure locked building and then freighted directly to the
laboratory.
Audits or reviews • The results of any audits or reviews of sampling techniques and data. • No audits or reviews have been carried out to date.
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
Criteria JORC Code explanation Commentary
Mineral tenement and • Type, reference name/number, location and ownership including • The mineral rights to the properties are vested in the State and the
land tenure status agreements or material issues with third parties such as joint ventures, Minerals and Petroleum Development Act, 2002, (MPRDA) regulates
partnerships, overriding royalties, native title interests, historical sites, the exploration and mining industry in South Africa.
wilderness or national park and environmental settings. • A mining right, NC30/5/1/2/2/10150MR (Mining Right), in accordance
• The security of the tenure held at the time of reporting along with any with section 23 of the MPRDA; was granted to Southern African
known impediments to obtaining a licence to operate in the area. Tantalum Mining (Pty) Ltd (SAFTA) to mine for a period of fifteen years
on 28 July 2022 and executed on 14 December 2022. On receipt of
Permission to cede from the Minister, the Mining Right was ceded to an
Orion subsidiary, New Okiep Mining Company (Pty) Ltd (NOMC) on 11
December 2023.
• The right is for copper and tungsten ore for a portion of portion 3, a
portion of portion 13, a portion of portion 14 and a portion of portion
21 of the farm Nababeep No 134 situated within the administrative
district of Namaqualand. The total area measures 1,214Ha in extent.
• A prospecting right, NC30/5/1/1/2/12850PR (Prospecting Right), for the
same area was granted to SAFTA on 27 June 2023 in accordance with
section 17 of the MPRDA for 3 years for 26 additional minerals including
Criteria JORC Code explanation Commentary
gold and silver. An application for permission to cede to NOMC has
been submitted to the authorities.
• The area was mined historically for copper.
Exploration done by • Acknowledgment and appraisal of exploration by other parties. • Previous explorers in the region includes Newmont, Gold Fields of SA and
other parties SAFTA. Exploration was focussed on Cu.
Geology • Deposit type, geological setting and style of mineralisation. • The tenements are located over the Central and Western parts of the
Okiep Copper District. The style of mineralisation is mafic hosted
orogenic Cu-mineralisation.
• Copper mineralisation is primarily associated with irregular, elongated
and steeply dipping Koperberg Suite mafic intrusives.
• The Koperberg Suite intrusives are mainly restricted to so-called "Steep
Structures" of extensive strike lengths and steeply dipping to the north.
• The Koperberg Suite consists of anorthosite, diorite and norite
intermediate to mafic rock types.
• Mineralisation usually occurs as blebs to disseminated Cu mineral
assemblages bornite > chalcopyrite > chalcocite and less pyrite and
pyrrhotite.
• The more mafic and magnetite-rich lithologies generally host the bulk of
and higher-grade mineralisation.
• The OCD has a long exploration and mining history, and the geology is well
known and understood.
Drill hole Information • A summary of all information material to the understanding of the • Refer to Table 4 in Appendix 1 for collar details of drill holes reported.
exploration results including a tabulation of the following information for
all Material drill holes:
o easting and northing of the drill hole collar
o elevation or RL (Reduced Level – elevation above
sea level in metres) of the drill hole collar
o dip and azimuth of the hole
o down hole length and interception depth
o hole length.
• If the exclusion of this information is justified on the basis that the
information is not Material and this exclusion does not detract from the
understanding of the report, the Competent Person should clearly
explain why this is the case.
Criteria JORC Code explanation Commentary
Data aggregation • In reporting Exploration Results, weighting averaging techniques, • A minimum 0.7% Cu cut-off was used to calculate intercepts.
methods maximum and/or minimum grade truncations (eg cutting of high • Allowance was made for 3m internal waste.
grades) and cut-off grades are usually Material and should be stated.
• A cut-off of 1.0% Cu was used for the higher-grade inclusions.
• Where aggregate intercepts incorporate short lengths of high grade
• Weighted grades were calculated as follows: %Cu X sample length(m)
results and longer lengths of low grade results, the procedure used for
such aggregation should be stated and some typical examples of • The CP is of the opinion that the above aggregation methods are
such aggregations should be shown in detail. acceptable for this type of deposit.
• The assumptions used for any reporting of metal equivalent values • No metal equivalents are reported.
should be clearly stated. • No capping of assay results was required.
Relationship between • These relationships are particularly important in the reporting of • Drilling is generally oriented perpendicular, or at a maximum
mineralisation widths Exploration Results. achievable angle to, the attitude of the mineralisation.
and intercept lengths
• If the geometry of the mineralisation with respect to the drill hole • Generally, drill hole inclinations ranged between -70° to -78° while the
angle is known, its nature should be reported. mineralisation is expected to dip close to 70°.
• If it is not known and only the down hole lengths are reported, there should • Only down holes lengths are reported.
be a clear statement to this effect (eg 'down hole length, true width not
known').
Diagrams • Appropriate maps and sections (with scales) and tabulations of • Refer to body of the announcement for plans, plots and tables.
intercepts should be included for any significant discovery being • Drilling data was incorporated and monitored in Micromine™
reported These should include, but not be limited to a plan view of drill software together with interpretation models based on the available
hole collar locations and appropriate sectional views. historical drill data.
Balanced reporting • Where comprehensive reporting of all Exploration Results is not • In the Competent Person's opinion, the Exploration Results reported in this
practicable, representative reporting of both low and high grades announcement have been reported in a balanced manner.
and/or widths should be practiced to avoid misleading reporting of
Exploration Results.
Other substantive • Other exploration data, if meaningful and material, should be reported • The Company's previous ASX releases have detailed exploration works.
exploration data including (but not limited to): geological observations; geophysical survey • A high-resolution drone magnetic survey was carried-out and will assist in
results; geochemical survey results; bulk samples – size and method of future planning of additional drill holes.
treatment; metallurgical test results; bulk density, groundwater,
geotechnical and rock characteristics; potential deleterious or • Drone (DJI 600M Pro) magnetics were done at 30m AGL and 50m line
contaminating substances. spacing.
• Historical detailed surface mapping is interpreted and utilised during drill
hole planning.
• Where possible, bulk density measurements were made over the full
length of each individual sample of split core. Where not possible due to
incompetent (crushed or broken) core, a minimum of 80% of the (half-
core) sample was used. The bulk density is determined by measuring
and subtracting the wet weight from the dry weight using an electronic
scale. Care is taken to clean and zero the scale between each weighing.
Criteria JORC Code explanation Commentary
The intact sample portion is first weighed in air and the weight recorded.
The sample is then weighed, while completely submerged in clean
water within a measuring container. The mass of container and water
are deducted for net submerged weight and volume displacement
read on measuring container. The sample is then removed and placed
back into the core tray in the correct position and orientation. The
procedure is repeated for each geological sample interval. The data
were recorded in the bulk density Data Sheet. The bulk density is
calculated for each sample using the formula:
BD = weight of sample
(weight of sample in air – weight of the sample in water)
Further work • The nature and scale of planned further work (eg tests for lateral • Historic resource confirmatory Drilling is continuing on Flat Mine South
extensions or depth extensions or large-scale step-out drilling). and Flat Mine North prospects.
• Diagrams clearly highlighting the areas of possible extensions, including • Further surface geophysical surveys may inter alia include ground,
the main geological interpretations and future drilling areas, provided drone and/or airborne EM, gravity and radiometrics.
this information is not commercially sensitive.
Date: 24-06-2024 08:50:00
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