Colibri Resource Commences Drilling at EP Gold Project, Sonora, Mexico Strategically Located Within and Adjacent to Fresnillo Plc Concessions
Colibri Resource Commences Drilling at EP
Gold Project, Sonora, Mexico
Strategically Located Within and Adjacent to Fresnillo Plc
Concessions
Dieppe, New Brunswick--(Newsfile Corp. - December 8, 2025) - Colibri Resource Corporation (TSXV:
CBI) ("Colibri" or the "Company") is pleased to announce that drilling has commenced at its flagship
EP
Gold Project
, a 4,766-hectare land package strategically located in the
Caborca Gold Belt
, Sonora,
Mexico. A reverse circulation ("RC") drill rig is now on site, crews have been mobilized, and the first
holes are now being drilled—marking the beginning of a new phase of exploration for the Company.
Prime Positioning in a Major Mining District
The EP Gold Project is
strategically situated within and adjacent to the extensive concession
holdings of Fresnillo plc
—the world's largest primary silver producer and Mexico's leading gold
producer. Fresnillo's dominant land position in the district underscores the significance of the region and
highlights the favourable geological setting in which Colibri operates.
Image 1: RC drilling rig arriving on site, EP Gold Project, Sonora, Mexico
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About the Caborca Region
Sonora is one of Mexico's most productive and historically significant mining jurisdictions, with more than
four centuries of continuous gold and silver production. The Caborca Gold Belt, in particular, is
recognized for its robust mineral endowment, long mining history, and well-developed infrastructure that
supports active exploration and mine development.
Regional Mining Environment
The Caborca Gold Belt hosts several producing mines and advanced exploration projects operated by
some of Mexico's largest gold and silver companies such as
Fresnillo plc
at its La Herradura Mine, as
well as established operators such as
Southern Copper Corporation
and
Alamos Gold Inc.
,
underscoring its significance as an active mining district. This long-established mining ecosystem
provides strong logistical advantages, experienced labour, and a comprehensive support network for
active exploration programs across the region, including Colibri's ongoing RC drilling campaign. Other
public companies with exploration or development activities in the region include
Osisko Development
Corp.
,
Minera Alamos Inc.
, and
Aztec Minerals Corp.
, each of which maintains mineral projects
within the broader Caborca area, reflecting the presence of ongoing mining and exploration activities in
the district.
Image 2: Drill mast raised on first prepared pad, RC drilling underway
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Management Commentary
"The start of drilling is an important catalyst for the Company as we build exploration momentum across
the EP Gold Project," said Ian McGavney, President & CEO of Colibri Resource Corporation. "With drills
turning, we have moved decisively into execution mode. Our team is energized, aligned, and committed
to advancing the Project with focus and purpose. We appreciate the continued support of our
shareholders and community partners as we enter this exciting chapter."
About Colibri Resource Corporation
Colibri Resource Corporation (TSXV: CBI) is a Canadian junior mining company engaged in the
acquisition, exploration, and development of precious metal properties in Sonora, Mexico. The
Company holds a 100% interest in the EP Gold Project, a 49% joint venture interest in the Pilar Gold &
Silver Project, and additional interests in highly prospective claims at Diamante. Colibri is committed to
advancing its portfolio through systematic exploration programs in one of Mexico's most prolific mining
districts.
For more information on all Colibri projects, please visit:
www.colibriresource.com
ON BEHALF OF THE BOARD
Ian McGavney
President, CEO & Director
Tel: (506) 383-4274
Email:
Notice Regarding Forward-Looking Statements
Neither TSX Venture Exchange nor its Regulation Services Provider accepts responsibility for
the adequacy or accuracy of this release.
This news release may contain forward-looking statements. Although Colibri believes that such
statements are reasonable, it can give no assurance that such expectations will prove to be correct.
Forward-looking statements are typically identified by words such as "plan," "expect," "anticipate,"
"intend," "believe," or variations of such words, and include statements with respect to the potential of
the EP Gold Project. Forward-looking statements are subject to risks, uncertainties and assumptions,
and actual results could differ materially. Readers are cautioned not to place undue reliance on these
forward-looking statements. The Company does not undertake any obligation to update forward-
looking statements except as required by law.
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