Colibri Congratulates JV Partner on Test Mine Permit; Pilar Positioned as Near-Term Bulk Sample Opportunity
Colibri Congratulates JV Partner on Test Mine
Permit; Pilar Positioned as Near-Term Bulk
Sample Opportunity
Dieppe, New Brunswick--(Newsfile Corp. - August 19, 2025) - Colibri Resource Corporation (TSXV:
CBI) ("Colibri" or the "Company") congratulates its joint venture partner, Tocvan Ventures Corp.
("Tocvan"), on receiving permit approval for a 50,000-tonne pilot mine facility in Sonora, Mexico
(announced August 14, 2025). Located in close proximity to the Pilar Gold & Silver Project ("Pilar"), a
49% Colibri - 51% Tocvan joint venture, the facility presents an excellent opportunity to consider
processing a bulk sample at a time when gold prices remain near record highs.
The permitted facility will be located in
very close proximity to the "Pilar Gold & Silver Project "
("Pilar"), a 49% Colibri - 51% Tocvan joint venture
. Although no plans have been finalized regarding
the use of the facility for Pilar material, its location and scale present a highly compelling opportunity for
the partners to consider processing a bulk sample from Pilar in an efficient, cost-effective manner. Pilar
is particularly well suited for this purpose: a 1,400-tonne bulk sample completed in 2023 returned an
average head grade of 1.9 g/t Au with recoveries of approximately 62% using simple heap leach
methods. Combined with extensive drilling and surface work, sufficient material could be sourced
quickly-making Pilar an immediately available, high-quality feed source for the newly permitted facility at
a time when gold prices remain near historical highs.
Previously Released Drill Highlights at Pilar (Colibri/Tocvan JV licenses):
2025 Diamond Drilling
(all lengths are drilled thicknesses):
83.5 m at 1.3 g/t Au from surface, including 10.3 g/t over 9.7 m
64.9 m at 1.2 g/t Au, including 3.0 m at 21.6 g/t Au and 209 g/t Ag - first high-grade intercept along
the North Hill trend
116.9 m at 1.2 g/t Au, including 10.2 m at 12.0 g/t Au and 23 g/t Ag
2024 RC Drilling
(
all lengths are drilled thicknesses
):
42.7m @ 1.0 g/t Au, including 3.1m @ 10.9 g/t Au
56.4m @ 1.0 g/t Au, including 3.1m @ 14.7 g/t Au
16.8m @ 0.8 g/t Au and 19 g/t Ag
2022 Phase III Diamond Drilling
(
all lengths are drilled thicknesses
):
116.9m @ 1.2 g/t Au, including 10.2m @ 12 g/t Au and 23 g/t Ag
108.9m @ 0.8 g/t Au, including 9.4m @ 7.6 g/t Au and 5 g/t Ag
63.4m @ 0.6 g/t Au and 11 g/t Ag, including 29.9m @ 0.9 g/t Au and 18 g/t Ag
2021 Phase II RC Drilling
(
all lengths are drilled thicknesses
):
39.7m @ 1.0 g/t Au, including 1.5m @ 14.6 g/t Au
47.7m @ 0.7 g/t Au including 3m @ 5.6 g/t Au and 22 g/t Ag
29m @ 0.7 g/t Au
35.1m @ 0.7 g/t Au
2020 Phase I RC Drilling Highlights include
(
all lengths are drilled thicknesses
):
94.6m @ 1.6 g/t Au, including 9.2m @ 10.8 g/t Au and 38 g/t Ag;
41.2m @ 1.1 g/t Au, including 3.1m @ 6.0 g/t Au and 12 g/t Ag ;
24.4m @ 2.5 g/t Au and 73 g/t Ag, including 1.5m @ 33.4 g/t Au and 1,090 g/t Ag
15,000m of Historic Core & RC drilling
(
all lengths are drilled thicknesses
):
61.0m @ 0.8 g/t Au
21.0m @ 38.3 g/t Au and 38 g/t Ag
13.0m @ 9.6 g/t Au
9.0m @ 10.2 g/t Au and 46 g/t Ag
Pilar Bulk Sample Summary
:
62% Recovery of Gold Achieved Over 46-day Leaching Period
Head Grade Calculated at
1.9 g/t Au and 7 g/t Ag;
Extracted Grade Calculated at
1.2 g/t Au and
3 g/t Ag
Bulk Sample Only Included Coarse Fraction of Material (+3/4" to +1/8")
Fine Fraction (-1/8") Indicates Rapid Recovery with Agitated Leach
Agitated Bottle Roll Test Returned Rapid and High Recovery Results
: 80% Recovery of Gold
and 94% Recovery of Silver after Rapid 24-hour Retention Time
Additional Metallurgical Studies:
Gravity Recovery with Agitated Leach Results of Five Composite Samples Returned
95 to 99% Recovery of Gold
73 to 97% Recovery of Silver
Includes the Recovery of
99% Au and 73% Ag from Drill Core Composite at 120-meter depth
"With a permitted processing facility now secured nearby, Pilar stands out as a ready and logical
candidate for a larger bulk sample program,"
said Ian McGavney, President & CEO of Colibri
.
"With a prior bulk sample already delivering an average grade of 1.9 g/t Au and demonstrating
recoveries above 60%, and with significant amounts of mineralized material already identified to
move quickly, Pilar is clearly positioned for near-term evaluation. Advancing Pilar in this way
would be highly advantageous to both Colibri and Tocvan shareholders, particularly with gold
trading near all-time highs."
About the Pilar Gold & Silver Project
The Pilar gold-silver property has returned some of the region's best drill results. Coupled with
encouraging gold and silver recovery results from metallurgical test work, Pilar is primed to be a
potential near-term producer. The project is interpreted as a structurally controlled low-sulphidation
epithermal system hosted in andesite rock. Initially, three primary zones of mineralization were identified
from historic surface work and drilling-referred to as the Main Zone, North Hill, and 4-T. Each trend
remains open to the southeast and north, and new parallel zones have been discovered. Structural
features and zones of mineralization within the structures follow an overall northwest-southeast trend.
Mineralization extends along a 1.2-kilometre trend, of which only approximately half has been drill-tested
to date.
About Colibri Resource Corporation
Colibri Resource Corporation is a Canadian mineral exploration company focused on acquiring,
exploring, and developing prospective gold & silver projects in Sonora, Mexico. Its portfolio includes five
projects-four currently under active exploration-with Pilar among the highest-priority assets.
For more information, please visit:
www.colibriresource.com
ON BEHALF OF THE BOARD
Ian McGavney, President/CEO
Colibri Resource Corporation
Neither 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 release.
Notice Regarding Forward-Looking Statements:
This news release contains "forward-looking statements". Statements in this press release which are
not purely historical are forward-looking statements and include any statements regarding beliefs,
plans, expectations or intentions regarding the future. Actual results could differ from those projected
in any forward-looking statements due to numerous factors. These forward-looking statements are
made as of the date of this news release, and the Company assumes no obligation to update the
forward-looking statements, or to update the reasons why actual results could differ from those
projected in the forward-looking statements. Although the Company believes that the plans,
expectations and intentions contained in this press release are reasonable, there can be no
assurance that they will prove to be accurate.
For information contact: Ian McGavney, President, CEO and Director, Tel: (506) 383-4274,
To view the source version of this press release, please visit
https://www.newsfilecorp.com/release/263067