Kobo Resources Reports Strong Metallurgical Results from Kossou Gold Project with Average Gold Recoveries of Approximately 97%
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PRESS RELEASE JUNE 24, 2026
Kobo Resources Reports Strong Metallurgical Results from Kossou
Gold Project with Average Gold Recoveries of Approximately 97%
• SGS test work achieved overall gold recoveries ranging from approximately 94% to 99%,
averaging approximately 97%
• Results confirm Kossou mineralisation responds well to a conventional processing route
utilized by several operating gold mines in Côte d'Ivoire
• Two drill rigs continue to advance resource definition and exploration drilling at Kossou
ahead of an inaugural Mineral Resource Estimate expected in H2 2026
QUEBEC CITY, QC – Kobo Resources Inc. (“Kobo” or the “ Company”) (TSX.V: KRI) (FWB: Q1Z) is
pleased to report positive metallurgical test results from its 100%-owned Kossou Gold Project ("Kossou")
in Côte d'Ivoire. The metallurgical program, completed by SGS Canada Inc. ("SGS"), at its Lakefield Facility
in Lakefield, Ontario, Canada , demonstrated strong gold recoveries across samples collected from the
Jagger and Road Cut Zones using a conventional gravity and cyanidation flowsheet, with overall gold
recoveries ranging from approximately 94% to 99% and averaging approximately 97%.
Edward Gosselin, CEO and Director of Kobo, commented: “ Metallurgy is one of the most important
technical components of any mining project because it helps determine how effectively the contained metal
can be recovered and can have a significant influence on future project economics. While drilling defines
the size and grade of a deposit, metallurgical performance is critical to understanding how that
mineralisation may ultimately be processed and recovered.”
He continued: “These results are highly encouraging because they demonstrate that gold mineralisation
from both the Jagger and Road Cut Zones responds exceptionally well to a conventional gravity and
cyanidation flowsheet, a processing route widely utilized by operating gold mines in Côte d'Ivoire. Achieving
average overall gold recoveries of approximately 97%, together with rapid leach kinetics, low reagent
consumption and very low residue grades, provides further confidence in the recoverability and processing
characteristics of the Kossou mineralisation.”
He concluded: “These results also continue to validate our understanding of the mineralisation at Kossou
and emphasizes the importance of our current drilling campaign underway as we continue advancing the
project toward an inaugural Mineral Resource Estimate expected later this year.”
SGS Metallurgical Program Delivers Strong Gold Recoveries
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SGS completed metallurgical test work on representative samples from the Jagger and Road Cut Zones to
evaluate their response to a conventional gravity and cyanidation gold recovery flowsheet.
SGS received from Kobo ~123 kilograms (“kg”) of material from 16 drill holes at the Jagger Zone and ~123
kg of material from 10 holes at the Road Cut Zone as representative samples of mineralisation . The
materials were crushed to -10 mesh and used to create six variability composites and a Master Composite.
The six variability composites, representing oxidised, partially oxidised and fresh mineralisation from each
zone were submitted for head analysis and metallurgical test work, which was comprised of grav ity
separation and cyanidation tests. The head assay results indicated that the gold grades for the six variability
samples ranged from 0.82 g/t Au to 1.50 g/t Au and averaged 1.23 g/t Au. The samples were ground to a
typical grind size P 80 target of ~75 µm and used for gravity separation and cyanidation tests. The gravity
concentrates were submitted for gold assay (fire assayed to extinction).
The gravity recoverable gold for the six variability samples ranged from ~46% to ~76% and averaged
~57%. The average percent mass pull to the gravity concentrates was 0.07%, which aligns with a typical
value used in operations. The calculated gold head grades averaged 1.34 g/t, which was slightly higher
than the average direct head assays (1.23 g/t).
The gravity tailings were submitted for standard cyanidation bottle roll tests, which evaluated the response
of the pulp to standard leach conditions . The program clearly demonstrated strong and consistent
metallurgical performance across oxidized, partially oxidized and fresh mineralisation . The samples
responded very well to the conditions and cyanidation extractions ranged from ~88% to ~95% (~92%
on average), while overall (gravity + cyanidation) gold recoveries ranged from ~94% to ~99% (~97%
on average). The final gold residue grades were very low, averaging 0.04 g/t Au.
All samples exhibited rapid gold leaching kinetics, achieving 71–87% gold recovery within the first ~10
hours of leaching . Gold extraction continued to increase gradually until ~30 hours, after which the
extractions started to plateau. Only minor recovery gains were observed thereafter, with maximum gold
extraction achieved before completion of the 48-hour leach period. Cyanide consumptions were low, 0.39
kg/t NaCN on average and lower cyanide additions are possible, based on the final (48-hour) free cyanide
concentrations. Lime consumptions averaged ~2 kg/t CaO.
The Master Composite was submitted for head assay and a complete mineralogical examination, which
included XRD and TIMA analysis, along with a comprehensive microscopic gold deportment study. The
mineralogy results are pending and will be issued in the coming weeks.
Table 1: Kossou Cyanidation Test Results
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CN
Test Gravity Overall
No. 12 h 29 h 48 h A B Avg. CN Gravity + CN Direct
G-1 Gravity Tail 1 82.4 92.4 93.5 54.7 97.1 <0.02 <0.02 <0.02 0.31 0.68 0.82
JAG MET 1
G-2 Gravity Tail 2 87.5 91.8 92.6 45.5 96.0 0.03 0.03 0.03 0.40 0.73 1.28
JAG MET 2
G-3 Gravity Tail 3 83.9 87.2 87.9 50.1 94.0 0.07 0.06 0.07 0.54 1.08 1.01
JAG MET 3
G-4 Gravity Tail 4 71.5 86.6 95.1 59.3 98.0 0.04 0.04 0.04 0.81 1.99 1.36
RCZ MET 1
G-5 Gravity Tail 5 87.0 90.7 94.7 76.4 98.7 0.03 0.02 0.03 0.47 1.99 1.50
RCZ MET 2
G-6 Gravity Tail 6 85.7 88.5 89.4 54.1 95.1 0.07 0.08 0.08 0.71 1.55 1.38
RCZ MET 3
-- -- 87.9 45.5 94.0 -- -- <0.02 0.31 0.68 0.82
-- -- 95.1 76.4 98.7 -- -- 0.08 0.81 1.99 1.50
-- -- 92.2 56.7 96.5 -- -- 0.04 0.54 1.34 1.23
Au Residue, g/t Au Head, g/t
Average
Au Extraction, % Au Recovery, %
Cyanidation
Minimum
Maximum
Sample
Details
Figure 1: Kossou Leach Kinetics – Results
Kossou Exploration Program Advances Multiple Workstreams Ahead of Inaugural MRE
The Company continues to advance multiple technical and exploration workstreams at Kossou, where more
than 42,000 m of drilling has now been completed across 222 drill holes. Two drill rigs continue to operate
at Kossou as the Company expands and defines gold mineralisation across the Jagger, Road Cut, Contact
Zone and Kadie target areas in support of an inaugural Mineral Resource Estimate expected in the second
half of 2026.
0
10
20
30
40
50
60
70
80
90
100
0 5 10 15 20 25 30 35 40 45 50
Au Extraction, %
Retention Time, h
Leach Kinetics
JAG MET 1 - CN-1
JAG MET 2 - CN-2
JAG MET 3 - CN-3
RCZ MET 1 - CN-4
RCZ MET 2 - CN-5
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The Company is also advancing preparations for its inaugural drill program at the Kotobi Permit, expected
to commence in Q3 2026, where previous work identified multiple large gold -in-soil anomalies across a
prospective structural corridor. Kotobi represents a complementary exploration growth opportunity
alongside the continued advancement of the Kossou Gold Project.
About SGS Canada Inc.
Metallurgical test work was completed by SGS Canada Inc. at its Lakefield, Ontario facility. Composite
samples were prepared from representative drill core intervals selected by Company personnel. SGS is
accredited under ISO/IEC 17025 standards.
SGS is widely recognized as one of the world's leading independent testing and metallurgical laboratories
serving the global mining industry. SGS operates a network of over 2,500 laboratories and business
facilities across 115 countries, supported by a team of over 100,000 dedicated professionals. SGS
maintains a strong presence as a top -quality service provider at all major ports and trading hubs across
Canada and is known across the world for excellence in exploration and mining. With more than 145 years
of service excellence, SGS combines the precision and accuracy that define Swiss companies to help
organizations achieve the highest standards of quality, compliance and sustainability. SGS is publicly
traded on the six Swiss Exchange under the ticker symbol SGSN (ISIN CH1256740924, Reuters SGSN.S,
Bloomberg SGSN SW). For more information, please visit www.sgs.com.
Review of Technical Information
The scientific and technical information in this press release has been reviewed and approved by Paul
Sarjeant, P.Geo., who is a Qualified Persons as defined in National Instrument 43-101. Mr. Sarjeant is the
President and Chief Operating Officer and Director of Kobo.
About Kobo Resources Inc.
Kobo Resources is a growth -focused gold exploration company with a compelling gold discovery in Côte
d'Ivoire, one of West Africa’s most prolific gold districts, hosting several multi-million-ounce gold mines. The
Company’s 100%-owned Kossou Gold Project is located approximately 20 km northwest of the capital city
of Yamoussoukro and is directly adjacent to one of the region’s largest gold mines with established
processing facilities.
With over 36,000 metres of diamond drilling, nearly 5,887 metres of reverse circulation (RC) drilling, and
7,200+ metres of trenching completed since 2023, Kobo has made significant progress in defining the scale
and prospectivity of its Kossou’s Gold Project. Exploration has focused on multiple high -priority targets
within a 9+ km strike length of highly prospective gold-in-soil geochemical anomalies, with drilling confirming
extensive mineralisation at the Jagger, Road Cut, and Kadie Zones. The latest phase of drilling has further
refined structural controls on gold mineralisation, setting the stage for the next phase of systematic
exploration and resource development.
Beyond Kossou, the Company is advancing exploration at its Kotobi Permit and is actively expanding its
land position in Côte d'Ivoire with prospective ground, aligning with its strategic vision for long-term growth
in-country. Kobo remains committed to ide ntifying and developing new opportunities to enhance its
exploration portfolio within highly prospective gold regions of West Africa. Kobo offers investors the exciting
combination of high -quality gold prospects led by an experienced leadership team with i n-country
experience.
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Kobo’s common shares trade on the TSX Venture Exchange under the symbol "KRI” and on the Frankfurt
Stock Exchange under the symbol “Q1Z”. For more information, please visit www.koboresources.com.
###
For further information, please contact:
Edward Gosselin
Chief Executive Officer and Director
1-418-609-3587
X: @KoboResources | LinkedIn: Kobo Resources Inc.
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OF THIS RELEASE.
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