Wrap Text
Alphamin continues to intercept high grade tin mineralisation at Mpama South/ commences LOM extension drilling
Alphamin Resources Corp.
Continued in the Republic of Mauritius
Date of incorporation: 12 August 1981
Corporation number: C125884 C1/GBL
TSX-V share code: AFM
JSE share code: APH
ISIN: MU0456S00006
ALPHAMIN CONTINUES TO INTERCEPT HIGH GRADE TIN MINERALISATION AT
MPAMA SOUTH/ COMMENCES LOM EXTENSION DRILLING AT MPAMA NORTH
July 28, 2021 – Alphamin Resources Corp. (AFM:TSXV, APH:JSE AltX, “Alphamin” or the
“Company”), a producer of 4% of the world’s mined tin from its high-grade operation in the
Democratic Republic of Congo, is pleased to announce additional high-grade assay results on
its Mpama South Exploration Drilling program as well as the commencement of Life of Mine
extension drilling at its high-grade Mpama North mine.
HIGHLIGHTS
- Further high-grade intercepts1 from the Main Zone at Mpama South received,
including:-
• BGH046: 10.8 metres @ 2.86% Sn from 195.2 metres
• BGH051: 5.3 metres @ 4.00% Sn from 164.2 metres
• BGH046: 2.6 metres @ 7.17% Sn from 218.0 metres
• BGH053: 10.6 metres @ 2.77% Sn from 198.9 metres
- Further high-grade intercept1 from the newly discovered footwall zone at Mpama
South received, including:-
• BGH053: 3.2 metres @ 9.59% Sn from 173.7 metres
- 12,300m of the planned 16,800m Diamond Drill program completed at Mpama
South (52 of the 70-hole program) with independent laboratory assays received for 39
holes to date
- Commenced drilling the 15,350m diamond drill program on Mpama North which
targets down dip extension of the already operating mine
Chief Executive Officer, Maritz Smith comments:
“We are pleased to have reached this milestone of starting the long-awaited extension drilling
on our high-grade Mpama North mine. The life of mine extension possibilities are highly
positive and we look forward to the results. The Mpama South Prospect continues to deliver
outstanding tin intercepts and at only 750m south of the Mpama North operation, would provide
excellent potential synergies.”
1 All intercepts are reported as apparent widths and are not true widths
Exploration Strategy for 2021
Alphamin’s exploration initiative aims to extend the life-of-mine at its currently producing
Mpama North mine, to declare a maiden mineral resource for the Mpama South Prospect
(located 750 metres on strike from Mpama North mine) as well as to discover at least one
additional deposit further along its highly prospective Bisie Ridge (13km strike length).
Mpama South Exploration Drilling Update
Mpama South is a high-grade tin discovery, located 750m south of Alphamin’s operating
Mpama North mine. A small diamond drilling program of sixteen (16) drillholes completed in
2016 recorded notable cassiterite intercepts in similar alteration styles to the Mpama North
mine. Alphamin re-commenced its Mpama South diamond drilling exploration activities in
December 2020 with a three-phased 16,800m 70-hole diamond drilling exploration campaign
till August 2021. All three phases are intended to form the basis of a Mineral Resource
estimation exercise, the results of which are expected to be announced by the end of 2021.
Infill drilling and further step-out drilling will continue from after August for the remainder of
2021.
Selected significant intercepts from the new batch of assays received in the Main Zone from
the Mpama South drilling program are listed below as apparent widths. Sample preparation is
detailed in Appendix 1 and all intercepts2 >0.5% Sn are detailed in Appendix 2:-
• BGH046: 10.8 metres @ 2.86% Sn from 195.2 metres
• BGH051: 5.3 metres @ 4.00% Sn from 164.2 metres
• BGH046: 2.6 metres @ 7.17% Sn from 218.0 metres
• BGH053: 10.6 metres @ 2.77% Sn from 198.9 metres
While significant new intercepts in the newly discovered footwall zone are as follows:-
• BGH053: 3.2 metres @ 9.59% Sn from 173.7 metres
The above intercepts together with the previously announced3 batches of significant intercepts
repeated below, point to a potential high-grade deposit at Mpama South:
Main Zone:
• BGH030: 10.6 metres @ 4.85% Sn from 141.9 metres
• BGH032: 20.0 metres @ 2.07% Sn from 185.0 metres
• BGH025: 14.6 metres @ 2.70% Sn from 220.10 metres
• BGH033: 6.4 metres @ 7.32% Sn from 259.0 metres
• BGH035: 13.0 metres @ 2.96% Sn (incl. 5.3 metres @ 6.4% Sn) from 152.0 metres
2 All intercepts are reported as apparent widths and are not true widths.
3 See News Announcement 08 June 2021
• BGH039: 21.0 metres @ 2.20% Sn (incl. 8.0 metres @ 4.26% Sn) from 145.0 metres
• BGH045: 6.9 metres @ 3.24% Sn from 176.7 metres
Footwall Zone:
• BGH034 3.2 metres @ 11.99% Sn from 174.8 metres
• BGH022: 5.5 metres @ 3.99% Sn from 75.0 metres
• BGH030: 1.4 metres @ 7.24% Sn from 110.0 metres
• BGH037: 3.0 metres @ 3.81% Sn from 154.0 metres
• BGH038: 2.9 metres @ 5.22% Sn from 151.7 metres
• BGH045: 1.1 metres @ 31.55% Sn from 120.7 metres
Although only shallowly drilled to date, tell-tale signs already lead management to believe that
the potential for a high-grade shoot exists at Mpama South (Figure 1), possibly similar to that
at the adjacent producing Mpama North mine. The ongoing third phase of drilling at Mpama
South of ~6,800m diamond drilling will test the extension of this interpreted high-grade shoot.
Figure 1: Mpama South Long section and Interpreted High-grade Shoot
Source: Alphamin 2021
Mpama North Commencement of Drilling
On 2nd of July 2021, Alphamin commenced drilling on the down dip northern strike extension
of the Mpama North orebody. The drilling program will be supplemented by additional
contractor rigs and intends to delineate the large extension potential for the current Life of
Mine. The initial program entails up to 15,350m in 22 diamond drillholes up to a length of 900m
and finishing by the end of February 2022. The previous deepest drill fence of the 2016 Mpama
North drilling campaign was also the best to-date4 and returned results, including:-
• BGC166: 16.01m @ 22.5% Sn,
• BGC141: 13.95m @ 3.47% Sn, and
• BGC140: 13.60m @ 7.59% Sn.
Subsequent to drilling, it is intended that a Mineral Resource estimate update will be completed
and an updated Mineral Resource announced. The drilling program target is illustrated in
Figure 2.
Figure 2: Mpama North LoM Extension Drilling program of 15,350m
Source: Alphamin 2021
Qualified Person
Mr Jeremy Witley, Pr. Sci. Nat., B.Sc. (Hons.) Mining Geology, M.Sc. (Eng.), is a qualified
person (QP) as defined in National Instrument 43-101 and has reviewed and approved the
scientific and technical information contained in this news release. He is a Principal Mineral
Resource Consultant of The MSA Group (Pty.) Ltd., an independent technical consultant to
the Company.
4 See News Announcement NI43-101 Report of 13 February 2020. All intercepts are reported as apparent widths.
FOR MORE INFORMATION, PLEASE CONTACT:
__________________________________________________________________________________________
Maritz Smith
CEO
Alphamin Resources Corp.
Tel: +230 269 4166
E-mail: msmith@alphaminresources.com
JSE Sponsor
Nedbank Corporate and Investment Banking, a division of Nedbank Limited
CAUTION REGARDING FORWARD LOOKING STATEMENTS
Information in this news release that is not a statement of historical fact constitutes forward-
looking information. Forward-looking statements contained herein include, without limitation,
statements relating to anticipated exploration activities and outcomes. Forward-looking
statements are based on assumptions management believes to be reasonable at the time such
statements are made. There can be no assurance that such statements will prove to be
accurate, as actual results and future events could differ materially from those anticipated in
such statements. Accordingly, readers should not place undue reliance on forward-looking
statements. Although Alphamin has attempted to identify important factors that could cause
actual results to differ materially from those contained in forward-looking statements, there
may be other factors that cause results not to be as anticipated, estimated or intended. Factors
that may cause actual results to differ materially from expected results described in forward-
looking statements include, but are not limited to: uncertainties with respect to social,
community and environmental impacts, uninterrupted access to required infrastructure,
adverse political events, impacts of the global Covid-19 pandemic on mining as well as those
risk factors set out in the Company’s Management Discussion and Analysis and other
disclosure documents available under the Company’s profile at www.sedar.com. Forward-
looking statements contained herein are made as of the date of this news release and
Alphamin disclaims any obligation to update any forward-looking statements, whether as a
result of new information, future events or results or otherwise, except as required by
applicable securities laws.
Neither the TSX Venture Exchange nor its regulation services provider (as that term is defined
in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or
accuracy of this news release.
Appendix 1: SAMPLE PREPARATION, ANALYSES AND QUALITY CONTROL AND
QUALITY ASSURANCE (QAQC)
After receipt of diamond drillcore from the drillers at the drill rig in marked core trays, core was
transported to the Company’s core shed by the site geologist for logging and sampling. After
sample mark up, lithological and geotechnical logging and photography, the core was split
longitudinally in half using a water-cooled rotating diamond blade core saw. The cut core was
replaced into the core tray with the half to be sampled facing upward. Based on previous
experience at Bisie with high density variability and at the qualified person’s instruction (Mr J.
Witley of MSA Group), specific gravity (SG) was performed exclusively on the half core that
was to be sampled. The Archimedes method of weight in air vs weight in water was used on
the whole length of the half core that was to be sampled and then replaced in the core trays.
Air dried samples were placed in pre-numbered sample bags together with pre-printed
numbered sample tickets, which were cross-checked afterwards to prevent sample swaps.
Sample bags were sealed using a plastic cable tie and then placed into poly-weave sacks
which were in turn sealed with plastic cable ties. Each poly-weave sack was marked with a
number and the sample numbers contained within, ready for delivery to the on-site Alphamin-
Bisie laboratory for sample preparation.
At the laboratory, samples were first checked off against the submission list supplied and then
weighed and oven dried for 2 hours at 105 degrees Celsius. The dried samples were crushed
by jaw crusher to 75% passing 2mm, from which a 250g riffle split was taken. This 250g split
was pulverised in ring mills to 90% passing 75?m from which a sample for analysis was taken.
Samples were homogenised using a corner-to-corner methodology and two samples were
taken from each pulp, one of 10g for on-site laboratory assaying and another 150g sample for
export and independent accredited 3rd party laboratory assaying.
For the initial on-site laboratory assay, 10 grams of pulverised sample is mixed with 2 grams
of binder before press pellet preparation at 20t/psi for 1 minute. Press pellets are analysed in
a desktop Spectro Xepos XRF analyser, twelve at a time, for Sn, Fe, Zn, Cu, Ag, Pb and As
along with a standard, duplicate and blank. The analytical method conducted on the pressed
pellet has an expected 10% precision and an upper detection limit of 70,000ppm and lower
detection limit of 500ppm. Over-limit samples are titrated by wet chemistry with an upper limit
validation of 70% Sn. The on-site laboratory assays are merely an exploration tool and were
not used for reporting the exploration results, which are based solely on the ALS assays.
The 150g sample is packaged in sealed paper sample envelopes and packed in a box for
export in batches of approximately 500 samples and prepared for export authorisation with
national authorities. Once authorisation is received, samples are air-couriered to ALS Group
in Johannesburg South Africa, a subsidiary of ALS Limited, which is an independent
commercial analytical facility. ALS operations are ISO 9001:2015 certificated and the
Johannesburg office is ISO 17025 accredited for Chemical Analysis by SANAS (South African
National Accreditation System, facility number T087), although the accreditation does not
extend to the methods used for tin.
Received samples at ALS Johannesburg are checked off against the list of samples supplied
and logged in the system. Quality Control is performed in the way of sieve tests every 50
samples and should a sample fail, the preceding 50 samples are ground in a ring mill pulverizer
using a carbon steel ring set to 85 % passing 75?m. Samples are analysed for tin using method
code ME-XRF05 conducted on a pressed pellet with 10% precision and an upper limit of
5,000ppm. The over-limit tin samples are analysed as fused disks according to method ME-
XRF15c, which makes use of pre-oxidation and decomposition by fusion with 12:22 lithium
borate flux containing 20% Sodium Nitrate as an oxidizing agent, with an upper detection limit
of 79% Sn.
Method code ME-ICP61 (HF, HNO3, HClO4 and HCl leach with ICP-AES finish) is used for 33
elements including base metals. ME-OG62, a four-acid digestion, is used on ore grade
samples for lead, zinc, copper and silver. Both methods are accredited by SANAS.
The program is designed to include a comprehensive analytical quality assurance and control
routine comprising the systematic use of Company inserted standards, blanks and field
duplicate samples, internal laboratory standards and analysis at an accredited laboratory. The
pulps were accompanied by blind QAQC samples inserted into the sample stream by the
Alphamin-Bisie geologists. These comprised blank samples, certified reference materials and
pulp duplicates each at an insertion rate of approximately 5%.
The QAQC results demonstrate that the assay results are both accurate and precise with an
insignificant amount of contamination (in the order of 10pmm Sn on average) and negligible
sampling errors. Further verification work is in progress by additional check assays by SGS
South Africa (Pty) Ltd.
Appendix 2: COMPLETE SIGNIFICANT INTERCEPTS (0.5% Sn lower threshold)
Hole Easting Northing RL_m Azi (°) Dip (°) From To Sn % Width Sample Position
GPS GPS (m)1 mid_x mid_y mid_z
BGH017 582535 9884822 732 55 -10 237.8 238.8 4.99 1 582,731.50 9,884,965.70 678.6
BGH018 582535 9884822 732 93 0 141.2 144.35 2.07 3.15 582,690.70 9,884,820.40 727.9
145.75 151 0.76 5.25 582,696.30 9,884,820.20 727.9
BGH019 582535 9884822 732 85 -5 147 152 2.05 5 582,696.10 9,884,836.50 715.8
BGH020 582535 9884822 732 84 -15 160.6 164.4 1.45 3.8 582,703.60 9,884,845.70 689.3
169.3 171.1 5.42 1.8 582,711.10 9,884,846.40 687.7
BGH021 582535 9884822 732 93 -15 109.15 110.25 3.2 1.1 582,653.50 9,884,821.10 700.1
164.6 167.32 3.29 2.72 582,708.30 9,884,818.30 687.6
BGH022 582554 9884785 732 90 0 75 80.53 3.99 5.53 582,632.60 9,884,784.00 729.3
109 110 1.35 1 582,664.40 9,884,784.80 729.9
119.22 122.1 2.22 2.88 582,675.50 9,884,784.70 730.1
BGH023 582535 9884822 732 75 -15 171.43 174.32 1.72 2.89 582,710.40 9,884,859.30 683.7
175.85 178 1.09 2.15 582,714.30 9,884,860.10 683
BGH024 582554 9884785 732 103 -5 127.7 129.6 0.54 1.9 582,679.20 9,884,749.20 717.2
137.95 142 1.13 4.05 582,690.00 9,884,745.80 716.2
BGH025 582535 9884822 732 55 -20 212.25 213.4 0.6 1.15 582,724.40 9,884,918.50 662.3
218 221.45 2.29 3.45 582,730.50 9,884,921.20 660.7
222.7 223.7 13.05 1 582,733.60 9,884,922.50 659.9
228 234.8 2.73 6.8 582,741.00 9,884,925.70 658
BGH026 582554 9884785 732 113 -10 103.71 108 3.3 4.29 582,649.00 9,884,734.90 713.7
134.8 136.45 3.72 1.65 582,675.50 9,884,722.40 708.6
161 162.5 5.61 1.5 582,698.70 9,884,711.10 704.5
BGH030 582554 9884785 732 115 -20 110 111.4 7.24 1.4 582,654.50 9,884,752.50 692.2
141.9 152.5 4.85 10.6 582,686.10 9,884,744.80 680
158 161.2 3.61 3.2 582,699.00 9,884,741.60 675.3
174.45 175.8 11.03 1.35 582,713.30 9,884,737.80 670.5
BGH032 582554 9884785 732 125 -20 177 178.72 1.7 1.72 582,691.50 9,884,683.60 671.3
182 188.25 3 6.25 582,697.10 9,884,679.40 669.1
190.25 193 0.95 2.75 582,702.00 9,884,675.70 667.2
194.4 202 1.37 7.6 582,707.10 9,884,671.90 665.3
203.5 208 2.67 4.5 582,712.80 9,884,667.50 663.2
BGH034 582554 9884785 732 115 -25 174.8 178 11.99 3.2 582,688.90 9,884,696.40 653.3
195.7 200 1.21 4.3 582,705.50 9,884,685.90 644.8
202.37 206.65 1.86 4.28 582,710.80 9,884,682.60 642.3
208 213.3 1.4 5.3 582,715.60 9,884,679.60 640.1
216.25 221.3 1.42 5.05 582,722.00 9,884,675.50 637.3
225.65 231 0.7 5.35 582,729.50 9,884,670.60 634
BGH027 582544 9884822 732 68 -27 212.35 214 0.58 1.65 582,728.60 9,884,879.20 634
226 229.3 1.32 3.3 582,741.40 9,884,882.80 628.4
235.45 236.58 1.54 1.13 582,748.90 9,884,884.90 625.2
BGH028 582554 9884785 732 90 -10 125 126 1.72 1 582,676.20 9,884,771.50 700.9
136.1 137.18 1.85 1.08 582,687.00 9,884,770.30 698.4
140.28 142 1.03 1.72 582,691.40 9,884,769.80 697.4
147.46 151.25 2.88 3.79 582,699.30 9,884,768.90 695.5
BGH029 582544 9884822 732 93 -25 126 128.35 4.66 2.35 582,663.20 9,884,826.40 678.5
178.9 184.05 1.25 5.15 582,713.40 9,884,826.90 657.7
193.7 196.05 3.95 2.35 582,725.90 9,884,826.90 653
BGH031 582544 9884822 732 75 -25 208 211.53 0.99 3.53 582,728.60 9,884,876.20 639.9
219.4 222.38 1.16 2.98 582,738.60 9,884,878.80 636
BGH033 582544 9884822 732 60 -27 259 265.46 7.32 6.46 582,756.10 9,884,928.50 612.8
268.53 270.52 1.02 1.99 582,762.20 9,884,931.30 610
BGH035 582554 9884785 732 90 -25 152 165 2.96 13 582,686.40 9,884,816.30 665
171 173.6 1.47 2.6 582,703.00 9,884,814.90 657.4
176.6 180.08 2.4 3.48 582,708.50 9,884,814.40 654.9
BGH036 582544 9884822 732 65 0 147.45 151.35 2.31 3.9 582,686.90 9,884,877.70 724.8
156.63 160.65 0.93 4.02 582,695.60 9,884,880.80 724.7
BGH037 582554 9884785 732 105 -30 154 157 3.81 3 582,679.60 9,884,741.20 647.5
194.6 197.55 1.54 2.95 582,712.10 9,884,730.00 626
207.95 211.18 1.29 3.23 582,723.10 9,884,725.80 619.3
216.25 220.15 2.79 3.9 582,730.10 9,884,723.10 615.1
222.4 226.7 1.77 4.3 582,735.30 9,884,721.00 612.1
BGH038 582544 9884822 732 75 -30 151.7 154.6 5.22 2.9 582,676.90 9,884,851.30 654.3
218.3 223.65 3.38 5.35 582,735.30 9,884,861.20 621.4
226.7 231.5 1.95 4.8 582,742.50 9,884,862.10 617.6
BGH039 582554 9884785 732 100 -22 112.08 113 2.12 0.92 582665.1 9,884,755.10 687.6
116.3 120.95 3.33 4.65 582,661.30 9,884,753.30 686.1
145 166 2.2 21 582,696.10 9,884,743.50 674.2
174.5 176 0.95 1.5 582,712.90 9,884,738.50 668.9
BGH040 582544 9884822 732 60 -30 232 233 0.95 1 582,724.80 9,884,921.50 618.2
273.7 277.05 3.79 3.35 582,760.50 9,884,936.70 600
BGH041 582500 9884847 732 55 -25 340 344.5 3.03 4.5 582,807.30 9,885,002.20 599.5
BGH042 582544 9884822 732 60 -35 277.35 280 1.93 2.65 582,751.10 9,884,922.40 569.4
308.5 312 0.62 3.5 582,776.00 9,884,932.10 552.6
313 315.55 1.52 2.55 582,779.20 9,884,933.30 550.5
BGH043 582544 9884822 732 100 -10 102.5 104.15 2.69 1.65 582,643.70 9,884,807.90 709
123 124 1.06 1 582,663.20 9,884,804.80 704.8
163.64 167 2.82 3.36 582,703.60 9,884,797.50 696.7
BGH044 582500 9884847 710 70 -35 330 334.13 1.31 4.13 582,764.00 9,884,940.60 533.4
BGH045 582544 9884822 732 100 -20 120.65 121.75 31.55 1.1 582,655.50 9,884,805.60 687.4
156 159.4 0.56 3.4 582,689.10 9,884,799.20 674.7
176.7 183.62 3.24 6.92 582,707.70 9,884,795.20 668.1
BGH046 582544 9884822 732 100 -30 195.18 206 2.85 10.82 582,712.20 9,884,795.21 630.53
212.53 215.18 1.90 2.65 582,723.30 9,884,792.92 623.65
218 220.6 7.16 2.6 582,727.86 9,884,791.90 620.84
225 226 4.36 1 582,733.05 9,884,790.71 617.67
BGH047 582565 9884535 718 60 0 121.58 124.57 0.91 2.99 582,653.21 9,884,878.60 739.15
147.09 148.09 1.28 1 582,675.18 9,884,889.30 741.11
BGH048 582567 9884509 727 90 0 140.75 143.05 0.90 2.3 582,708.14 9,884,495.97 727.69
146.53 148 0.74 1.47 582,713.44 9,884,495.21 727.97
BGH049 582565 9884535 718 65 -15 145.4 147.4 4.27 2 582,689.15 9,884,599.15 674.50
BGH050 582567 9884509 727 105 -5 160 161.38 1.06 1.38 582,721.55 9,884,468.80 711.71
BGH051 582565 9884535 718 40 0 134.8 137 2.23 2.2 582,661.85 9,884,630.13 712.28
151 156.3 1.20 5.3 582,674.83 9,884,642.21 711.44
164.18 169.45 3.95 5.27 582,684.54 9,884,651.08 710.83
171.27 172.57 4.08 1.3 582,688.29 9,884,654.54 710.60
BGH052 582567 9884509 727 120 0 205.9 207.1 1.86 1.2 582,731.56 9,884,384.52 722.85
BGH053 582565 9884535 718 40 -15 173.73 176.93 9.58 3.2 582,684.86 9,884,653.25 669.21
178.55 181.43 4.07 2.88 582,688.12 9,884,656.33 667.92
192.41 196.86 3.28 4.45 582,698.40 9,884,665.97 663.95
198.86 206.77 2.45 7.91 582,704.18 9,884,671.35 661.81
207.53 209.5 5.04 1.97 582,708.20 9,884,675.12 660.33
214.65 216 2.32 1.35 582,712.98 9,884,679.64 658.57
BGH055 582565 9884535 718 80 -15 145 146 0.62 1 582,705.28 9,884,549.30 682.68
1. Apparent widths, not true thickness
Date: 28-07-2021 01:50:00
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