Orosur Mining Inc - exceptional results continue at Pepas
Orosur Mining Inc - exceptional results continue at Pepas
• Assays from four more holes at Pepas - exceptional results continue
o PEP022 - 76.3m @ 7.24g/t Au (from surface)
o PEP021 - 107.05 @ 6.22 g/t Au (from surface)
o PEP020 - 54.65m @ 1.94 g/t Au (from surface)
o PEP019 - 44.3m @ 1.63 g/t Au (from surface)
• Surface sampling defines potential to the north
London, February 4th, 2025 . Orosur Mining Inc. ("Orosur" or the
"Company") (TSXV/AIM:OMI), is pleased to announce an update on the progress of
exploration activities at the Company's flagship Anzá Project ("Project") in Colombia.
ANZÁ Project
The Anzá Project is 100% owned by the Company following recent completion of a Share
Purchase Agreement (SPA), announced 28 th November 2024, whereby the Company
purchased all of the shares of its previous JV partner, Minera Monte Aguila (MMA).
The Project is located 50km west of Medellin and is easily accessible by all -weather roads
and boasts excellent infrastructure including water, power, communications as well as a large
exploration camp.
Pepas
The Pepas Prospect is in the northern extent of the Anzá Project (pre-acquisition) over 10km
north of the central base at APTA (Figure 1).
Figure 1. Anzá Project - prospects
Pepas was discovered by MMA in late 2021 by BLEG sampling and geological mapping,
followed by 11 diamond drill holes in 2022 (PEP001 to PEP011).
After completion of the transaction to buy MMA, the Company restarted drilling at the Pepas
prospect in mid-November 2024.
Drilling commenced with hole PEP012, which was positioned to confirm previous high-grade
results in holes PEP001, PEP005 and PEP007 drilled in 2022.
Later holes were then rotated some 51 degrees clockwise from PEP012 to begin to test what
was considered by Company geological teams to be the controlling trend of SE to NW. The
primary objective of the first phase of drilling by the Company was to attempt to understand
the geological controls upon mineralisation first identified in 2022, so as to provide guidance
for later step out drilling.
Holes drilled and announced to date (PEP012 to PEP018) have all intersected thick
sequences of gold mineralisation, that seem to be bounded on each side by two faults that
converge at depth (Tesorito North and Tesorito South faults). Recent drilling continues to
improve the geological understanding of the lithostructural architecture of the mineralised
zone.
Figure 2. Plan of holes
Holes PEP019 and PEP020 were both drilled from the same pad in the SE of the mineralised
zone to test continuity of mineralisation and to examine some additional structures that had
been identified at surface in this location (Figure 3).
Both holes entered broken ground at shallow depth, potentially indicative of a N -S fault that
will require more examination. The fault zone, however, was substantially mineralised, with
the holes recording high quality intersections of 44.3m @ 1.63g/t Au and 54.65m @ 1.94 g/t
Au respectively, both from surface.
Figure 3. Section, PEP019 and PEP020
Holes PEP021 and PEP022 were drilled from the same pad, on section with PEP014 in the
centre of the mineralised zone, but in the opposite direction to PEP014, to define the nearly
identified Tesorito South fault, which thus far had only been intersected at a very shallow angle
in holes PEP016 and PEP018.
Both holes entered high grade gold mineralisation immediately from surface, which continued
at a consistent level until intersection of the Tesorito South fault (Figure 4).
The holes returned exceptional gold intersections of 107.05m @ 6.22g/t Au and 76.3m @
7.24g/t Au respectively, both from surface.
Figure 4 Section PEP021 and PEP022
Hole PEP022 encountered a second fault toward the bottom of the hole, possibly indicative of
a small N-S fault, intersected at a shallow angle. This fault zone was mineralised to a low level
of less than 0.3g/t Au but was included in the above quoted compo site intersection as it was
felt its thickness may have been exaggerated due to the shallow angle of intersection. If this
fault zone were removed from calculation, the composite intersection of PEP022 would instead
be 62.95m @ 8.73g/t Au, from surface.
Drill intersections for these four holes are as follows:
Hole Number From (m) To (m) Interval
(m) Au (g/t)
PEP019 0 44.30 44.3 1.63
including 8.7 17.5 8.8 3.35
PEP020 0 54.65 54.65 1.94
including 47.0 54.65 6.75 4.51
PEP021 0 107.05 107.05 6.22
including 23.2 47.05 23.85 13.67
82.25 86.45 4.2 15.31
98.55 105.9 7.35 9.2
PEP022 0 76.3 76.3 7.24
including 20.55 34.45 13.9 8.72
37.25 56 18.75 17.02
58.4 62.95 4.55 9.11
Table 1. Drill Intercepts
Surface Sampling
The Pepas prospect was originally identified by regional BLEG sampling in late 2021, with
high grade surface outcrop then being discovered early in 2022 and immediately drilled.
Little or no surface geochemical sampling was undertaken prior to drilling.
However, upon taking control of the Project post completion of the MMA transaction in late
November 2024, the Company took possession of all historical databases. It was then noted
that some substantial ridge and spur soil sampling programs had been under taken in the
region post drilling, later in 2022. The Company had not previously been aware of these data.
Analysis of these data (Figure 5) not only clearly shows the Pepas area as being highly
anomalous but also shows an area to the north of even more extensive soil anomalism. The
current area of Pepas that has been drilled, covers roughly half of N-S extent of the southern
anomaly (Figure 5) marked as "Pepas".
The northern area marked as "Pepas 2" is untouched. Combined, the two zones cover some
1000m of strike.
Figure 5. Pepas soil sampling
These soils, while extremely anomalous, are limited in by being constrained to ridges and
spurs - a common strategy in steep terrain to ensure samples are in-situ.
As a result, over the last several weeks, Company geological teams have been active in this
northern area, mapping the flanks of these ridges for in -situ, residual material that could
provide more targeting guidance.
A number of areas of mineralised material have been identified, with one large area along a
small walking track exposing saprolite and semi-fresh rock. Over 100m of mineralisation was
identified at surface, with samples taken at 1m intervals over the enti re length of the
exposure. Assay results averaged 1.15g/t Au over 105m, with individual samples at times
exceeding 5g/t Au (Figure 6.). This channel sample is at the southern extreme of the new
Pepas 2 anomalous area, but over 200m north of the limit of current drilling.
No work has yet been undertaken on the majority of the zone.
Figure 6. Channel Samples
Mapping and sampling programs continue in this northern area, with a view to potential drilling
at a later date once the current Pepas area is better defined.
Discussion and ongoing drilling
Since the Company reassumed control of the Project, 11 holes have been completed for
941m. All holes have returned substantial gold intersections, particularly in the centre of the
currently drilled area where assays results have been exceptional (Table 2)
Hole Number From (m) To (m) Interval
(m) Au (g/t)
PEP012 0 66.75 66.75 5.64
PEP013 0 77.30 77.30 7.68
PEP014 0 75.1 75.1 5.58
PEP015 23.5 63.7 40.2 3.75
PEP016 61.6 105.3 43.7 3.13
PEP017 56.1 96.3 40.2 2.06
PEP018 0 54.1 54.1 6.01
PEP019 0 44.3 44.3 1.63
PEP020 0 54.65 54.65 1.94
PEP021 0 107.05 107.05 6.22
PEP022 0 76.3 76.3 7.24
Table 2. Results to date, post MMA transaction
While some understanding of the form of the Pepas mineralisation is beginning to emerge,
this represents a relatively limited amount of drilling and can be considered as preliminary
testing at best.
As we are very encouraged by these early results, we will continue the drilling programme,
although for the foreseeable future the Company will operate conservatively within its cash
and personnel constraints and continue with only one drill rig; defining, expanding and
understanding the current Pepas body, thus freeing up a team to examine the large anomalous
area abutting to the north.
Orosur CEO Brad George commented:
"In some nine weeks (including the Christmas break), and less than 1000m of drilling, we have
moved Pepas from a concept to one of the most exciting exploration stories in the gold
space. It is very early days, but the results obtained thus far, if continued, could see the project
advance very quickly."
For further information, visit www.orosur.ca, follow on X @orosurm or please contact:
Orosur Mining Inc
Louis Castro, Chairman,
Brad George, CEO
Tel: +1 (778) 373-0100
SP Angel Corporate Finance LLP - Nomad & Joint Broker
Jeff Keating / Jen Clarke / Devik Mehta
Tel: +44 (0) 20 3470 0470
Turner Pope Investments (TPI) Ltd - Joint Broker
Andy Thacker/James Pope
Tel: +44 (0)20 3657 0050
Flagstaff Communications and Investor Communications
Tim Thompson
Mark Edwards
Fergus Mellon
Tel: +44 (0)207 129 1474
The information contained within this announcement is deemed by the Company to constitute inside
information as stipulated under the Market Abuse Regulations (EU) No. 596/2014 ('MAR') which has
been incorporated into UK law by the European Union (Withdrawa l) Act 2018. Upon the publication of
this announcement via Regulatory Information Service ('RIS'), this inside information is now considered
to be in the public domain.
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies
of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
Drill Hole Details - Pepas prospect 2022/2024 Programme*
Hole ID Easting
(m)
Northing (m) Elevation asl
(m)
Dip (°) Azimuth
(°)
PEP-001 403384 705000 1001 -50 150
PEP-002 403384 705000 1001 -60 290
PEP-003 403240 705142 1001 -49.60 95.2
PEP-004 403508 705671 838 -59.8 99.8
PEP-005 403373 704990 1008 -49.8 94.6
PEP-007 403374 704990 1008 -69.9 170
PEP-008 403232 704803 971 -50 60
PEP-009 403032 705057 1055 -50 80
PEP-010 403375 705106 982 -50.31 190.4
PEP-011 403573 704939 1001 -50.3 255
PEP-012 403415 704890 997 -56 352
PEP-013 403413 704887 997 -50 43
PEP-014 403400 704910 1007 -50 43
PEP-015 403375 704938 1017 -50 43
PEP-016 403326 704912 999 -50 43
PEP-017 403365 704848 976 -40 47
PEP-018 403345 704851 977 -45 43
PEP-019 403446 704890 991 -45 43
PEP-020 403446 704890 991 -75 43
PEP-021 403424 704935 1012 -62 223
PEP-022 403424 704935 1012 -42 223
* Coordinates WGS84, UTM Zone 18
About Orosur Mining Inc.
Orosur Mining Inc. (TSXV: OMI; AIM: OMI) is a minerals explorer and developer currently operating in Colombia,
Argentina and Nigeria.
About the Anzá Project
Anzá is a gold exploration project, comprising three exploration licences, four exploration licence applications,
and several small exploitation permits, totalling 176km2 in the prolific Mid-Cauca belt of Colombia. Post the
acquisition of Minera Monte Aguila S.A.S, the area of the Project has increased substantially to approximately
400km2 due to the acquisition of a number of additional applications that were owned by Minera Monte Aguila
S.A.S.
The Anzá Project is currently wholly owned by Orosur via its subsidiaries, Minera Anzá S.A. and Minera Monte
Aquila S.A.S.
The project is located 50km west of Medellin and is easily accessible by all-weather roads and boasts excellent
infrastructure including water, power, communications and large exploration camp.
Qualified Persons Statement