Voluntary Announcement: Results from Shallow Drilling at Twin Hills
OSINO RESOURCES CORP
Incorporated in British Columbia
Registration Number: BC0741084
ISIN code: CA68828L1004
TSX code: OSI
NSX code: OSN
OSINO ANNOUNCES WIDE, HIGH GRADE AU ASSAY RESULTS FROM SHALLOW
INFILL DRILLING AT TWIN HILLS GOLD PROJECT, NAMIBIA
Highlights
• Completed reverse-circulation ("RC") drilling of 110 boreholes at the Bulge pit at tight 12.5 x
12.5m spacing over an area covering the 1st year of open pit mining. 13 of 110 assay results
are still outstanding with final results expected before end of November 2022.
• The program objective is to convert the first 2 years of mining from Indicated to Measured
mineral resource category and to confirm and upgrade the Twin Hills Mineral Resource
Estimate ("MRE").
• Assay results received to date have returned wide and high-grade intercepts, including:
• OKRG0139: 102m @ 1.50g/t Au (21 – 123m)
• OKRG0122: 100m @ 1.37g/t Au (18 – 118m)
• OKRG0143: 104m @ 1.22g/t Au (19 – 123m) incl. 11m @ 1.75g/t & 40m @ 1.67g/t Au
• OKRG0134: 104m @ 1.18g/t Au (18 – 122m)
• OKRG0111: 105m @ 1.13g/t Au (18 – 123m) incl. 8m @ 1.21g/t & 19m @ 1.75g/t Au
• OKRG0131: 105m @ 1.13g/t Au (18 – 123m) incl. 10m @ 1.98g/t Au
• OKRG0126: 105m @ 1.07g/t Au (18 – 123m) incl. 7m @ 1.93g/t & 14m @ 2.37g/t Au
• OKRG0108: 105m @ 1.06g/t Au (18 – 123m) incl. 16m @ 1.74g/t Au
• OKRG0116: 91m @ 1.20g/t Au (32 – 123m)
• OKRG0137: 80m @ 1.45g/t Au (19 – 99m) incl. 17m @ 2.01g/t & 12m @ 2.22g/t Au
• OKRG0112: 84m @ 1.33g/t Au (20 – 104m) incl. 20m @ 2.71g/t & 20m @ 1.52g/t Au
• OKRG0144: 77m @ 1.38g/t Au (20 – 97m) incl. 54m @ 1.68g/t Au
• A follow-on RC drill program at Clouds and Twin Hills Central ("THC") pits is ongoing with 43
out of 70 planned boreholes completed also at 12.5m spacing. Assay results are expected from
early December with complete results expected by end of January 2024.
• Twin Hills is a pre-construction, DFS-stage open pit gold project with 4 satellite pits (Bulge,
Twin Hills Central, Clouds and Twin Hills West), which together have a published MRE of
2.94moz at 1.08 g/t (Indicated & Measured) and 0.25moz at 1.10g/t (Inferred) (press release
dated June 12, 2023).
Osino Resources Corp. (TSXV:OSI) (NSX:OSN) (FSE:RSR1) (OTCQX:OSIIF) ("Osino" or "the Company") is
pleased to provide an update on the infill drill program at the Twin Hills Gold Project ("Twin Hills" or
"the Project"). The objective of the program is to convert the first 2 years of mining from Indicated to
Measured mineral resource category and to confirm and upgrade the Twin Hills Mineral Resource
Estimate ("MRE"). Osino remains focused on the financing and pre-construction activities at Twin Hills,
including de-risking the mineral resource estimate and the initial years of production.
Heye Daun, Osino's President and CEO commented: "We are highly encouraged by these excellent
assay results which continue to come out of the Bulge infill drill program. The results confirm Twin Hills
as a high-quality, low risk open pit gold project with significant upside potential. What stands out from
the latest drill results are the significant length of these intercepts with highly consistent mineralization
including some very pleasing, thick, high-grade intercepts of 1.5 g/t or more. Considering that these
intercepts are unconstrained with no selective mining modelling applied yet, the upside potential of
the Twin Hills mineral resource should be self-apparent. When we last completed such infill drilling at
Twin Hill Central (THC) we were able to demonstrate a noteworthy grade increase, and we are hopeful
that the same effect can be demonstrated for Bulge and the rest of the Twin Hills MRE as well, once
our current round of infill drilling has been completed. Needless to say, a small change in overall grade
will have an outsized effect on project economics."
Twin Hills Infill Drill Program
A total of 11,427m from 110 RC holes were completed within a block of 160m x 110m at Bulge pit
(Figure 1). These holes were drilled on a 12.5m x 12.5m grid spacing and ranged in depth from 60m to
123m. Drilling was generally done to a datum with a maximum hole depth of 123m. The program
conforms to the existing inclined drill pattern with holes drilled at minus 60° dip towards the south-
southeast.
The drill program covers the Bulge year one starter pit hosting sub-cropping mineralisation, which
plunges north-northeast to form the main ore shoot.
Most assay results from the Bulge pit have been received with only 13 holes outstanding from a total
of 110. All remaining drill results are expected to be reported before end of November 2023.
An additional infill drill program was commenced during November at the Clouds and THC pits, with
the aim of producing representative results for all of the main Twin Hills satellite pits (see Figure 1).
The infill program results will drive an internal review of geological and resource modelling techniques
and parameters utilised in the generation of the latest MRE comprising 2.94moz at 1.08 g/t (Indicated
& Measured) and 0.25moz at 1.10g/t (Inferred) (refer to press release dated June 12, 2023).
The program is on track to achieve its ultimate objective of confirming and upgrading the next MRE
iteration.
Figure 1: Selected assays from the infill program at Bulge
This drilling has intentionally been focused on the respective starter pits in the Bulge, THC, and Clouds
areas and thereby not only significantly reduces the grade risk in the early years of production, but it
will also assist in fine-tuning the geological modelling, wire-framing and grade estimation of the
remainder of the deposit.
All holes drilled so far produced very good assay results which not only demonstrate the consistency
and grade continuity of the Twin Hills mineralization, but also indicate the potential for grade
improvements through constraining and utilizing a selective mining approach to modelling to improve
the recoverable gold grade.
Figure 2: Section across the Infill Drilling Block at Bulge
Once the remaining drill results have been received, Osino will quantify the effect of this drilling on
the mineral resource definition and grade estimation.
It is expected that the increased drill density will result in a better definition of ore and waste
boundaries and therefore has the potential to exclude areas of internal waste and result in an overall
grade improvement.
Ongoing Infill Drill Program at Twin Hills Central and Clouds
The additional infill program at Twin Hills Central and Clouds pits is also aimed at converting the starter
pit from Indicated to Measured category, thereby substantially de-risking the first 2 years of ore
mining. A total of 3,517m in 43 reverse circulation holes have been planned on the Twin Hills Central
orebody, at a similar 12.5 x 12.5m grid spacing, with a surface expression of about 75m x 75m.
This block is an extension of the 100m x 50m block drilled in 2022 as an orientation study at the THC
portion of the Twin Hills gold deposit. This study validated the wider spaced modelling and resulted in
a 9% improvement in average grade over the mineral resource without a loss in contained metal. 24
holes for a total of 1,921m have been drilled to date with 1,596m (19 holes) still to be completed
before year-end. All holes have been drilled to a maximum depth of 84m.
A further 1,311m in 19 holes have been completed at the Clouds deposit to drill out a representative
area with a similar grid spacing. The surface expression of the Clouds block is 75 x 50m in size. A total
of 546m (8 holes) drilled to a maximum depth of 77m are still to be completed with first results
expected at the beginning of December.
Figure 3: Selected assays from the infill program at Bulge and THC
All new assay results from this tight spaced drilling will be used to validate and confirm the Twin Hills
Mineral Resource Estimate ("MRE") modelling techniques and parameters utilized, and to upgrade
the current MRE.
Implications of Infill Drill Programs at Twin Hills
The first tight infill drill program was completed in early 2022 as an orientation study at the THC
portion of the Twin Hills gold deposit. The program aimed to validate Osino's resource estimation
techniques and parameters while firming up on the geological model, ahead of the planned release of
the MRE that would ultimately inform the prefeasibility and definitive feasibly studies late in 2022 and
early in 2023 respectively.
The THC program returned good results as expected and provided better definition of the ore
envelope boundaries. Detailed variability analysis of the block similarly informed on the grade
continuity of the mineralisation and therefore the drill spacing needed to convert Indicated resources
to the Measured category.
The infill block at THC ultimately served to compare different estimation methods. It was found that
estimation by Ordinary Kriging, as previously used by Osino to determine the Twin Hills resource,
produced smoothed estimates, smearing grades and diluting mineralisation envelopes.
In comparison, the non-linear estimation method of Uniform Conditioning (UC) estimates the tonnage
and grade of mineralisation that can be recovered using the Selective Mining Unit (SMU) at selected
cut-off values. The Localised Uniform Conditioning (LUC) method then further enhances the UC
approach by ranking and arranging the SMUs within larger panels (blocks). LUC produces results
representative of grade and geology, but also in a more practical format, particularly for use in mine
planning.
The net result of the 2022 THC infill drill program was a 9% improvement in average grade over the
drilled block with no loss in contained metal.
As soon as all of the Bulge infill drill results have been received, we plan to complete a similar
analysis in order to confirm or improve on the resource modelling and estimation techniques
with the aim of confirming or improving the grade estimate for the Twin Hills MRE.
A link to the updated intercept table is provided here.
Notes on Drill Assay Reporting:
1. Total intercepts reported are unconstrained - all combined intercepts above 0.4g/t reported. GM values based
on unconstrained intercepts. All reported intercepts are apparent widths rounded to the nearest meter.
Included (incl.) intercepts are constrained at 0.4g/t cut-off, minimum 2m wide and no more that 2m internal
dilution. True widths are unknown at this stage. Collar positions are in UTM WGS84 surveyed by digital GPS.
2. The GM number indicated by colour coding in Figure 1 and 2 is a commonly used short-hand method of
representing gold grade (g/t) and unconstrained intercept width (m) as a single metric by multiplying the
average intercept grade with the intercept width.
Qualified Person's Statement
David Underwood, BSc. (Hons) is Vice President Exploration of Osino Resources Corp. and has
reviewed and approved the scientific and technical information in this news release and is a registered
Professional Natural Scientist with the South African Council for Natural Scientific Professions (Pr. Sci.
Nat. No.400323/11) and a Qualified Person for the purposes of National Instrument 43-101.
About Osino Resources
Osino is a Canadian gold exploration and development company focused on the fast-tracked
development of our wholly owned, Twin Hills Gold Project in central Namibia. Since its grassroots
discovery by Osino in August 2019 the Company has completed more than 225,000m of drilling and
has completed a suite of specialist technical studies culminating in the recently published Twin Hills
Definitive Feasibility Study ("DFS") dated effective June 12, 2023. The DFS describes a technically
simple and economically robust open-pit gold operation with a 13-year mine life and average annual
gold production of over 169,000oz per annum.
Osino has a commanding ground position of over 8,000km2 located within Namibia's prospective
Damara sedimentary mineral belt, mostly in proximity to and along strike of the producing Navachab
and Otjikoto Gold Mines. The Company is actively exploring a range of gold prospects and targets
along the belt by utilizing a portfolio approach geared towards discovery, targeting gold mineralization
that fits the broad orogenic gold model.
Our core projects are favourably located north and north-west of Namibia's capital city Windhoek. By
virtue of their location, the projects benefit significantly from Namibia's well-established
infrastructure with paved highways, railway, power and water in close proximity. Namibia is mining-
friendly and lauded as one of the continent's most politically and socially stable jurisdictions. Osino
continues to evaluate new ground with a view to expanding our Namibian portfolio.
Further details are available on the Company's website at https://osinoresources.com and under the
Company's profile on SEDAR+ at www.sedarplus.ca.
On Behalf of The Board of Directors
Heye Daun, President & CEO
20 November 2023
CONTACT INFORMATION
Osino Resources Corp.
Yaron Conforti
Corporate Development
+1-604-687-2038
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NSX Sponsor
Cirrus Securities (Pty) Ltd
Member of the Namibian Stock Exchange
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
press release.
Cautionary Statement Regarding Forward-Looking Information
This press release contains "forward-looking information" within the meaning of applicable Canadian
securities legislation. Forward-looking information includes, without limitation, statements regarding
the use of proceeds from the Company's future plans or prospects of the Company, including prospects
for economic recoverability of mineral resources. Generally, forward-looking information can be
identified by the use of forward-looking terminology such as "plans", "expects" or "does not expect",
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or results "may", "could", "would", "might" or "will be taken", "occur" or "be achieved". Forward-
looking statements are necessarily based upon a number of assumptions that, while considered
reasonable by management, are inherently subject to business, market and economic risks,
uncertainties and contingencies that may cause actual results, performance or achievements to be
materially different from those expressed or implied by forward-looking statements. Although the
Company has attempted to identify important factors that could cause actual results to differ
materially from those contained in forward-looking information, there may be other factors that cause
results not to be as anticipated, estimated or intended. There can be no assurance that such
information 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 information. Other factors which could materially affect such forward-looking information are
described in the risk factors in the Company's most recent annual management's discussion and
analysis which is available on the Company's profile on SEDAR at www.sedar.com. The Company does
not undertake to update any forward- looking information, except in accordance with applicable
securities laws.
Date: 20-11-2023 02:46:00
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