REG - Orosur Mining Inc - Infill drilling hits 104m @ 6.61g/t Au at Pepas

Orosur MiningAnnouncement

Yesterday 07:02

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RNS Number : 9276T  Orosur Mining Inc  05 August 2025

 

 

 

 

 

 

 

Orosur Mining Inc - infill drilling hits 104m @ 6.61g/t Au from surface at
Pepas.

 

·    Assays from three more holes from the Pepas MRE infill program:

o PEP047 - 104m @ 6.61g/t Au from surface

o PEP048 - 32.3m @ 3.65g/t Au from surface

o PEP049 - 94.2m @ 3.74g/t from surface

·    Soil sampling about to recommence at El Cedro

 

 

London, August 5(th), 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, 100% owned, Anzá Gold
Project ("Project") in Colombia.

 

As announced on 14(th) July 2025, the Company has taken the formal decision to
commence infill drilling at its Pepas gold prospect, with the target of moving
Pepas to a NI43-101 compliant Mineral Resource Estimate (MRE) by the end of
the year.

 

The first several holes of this program (announced 17(th) July 2025),
vindicated this decision by returning exceptional widths and grades,
especially hole PEP045 which returned 62.3m @ 12.76g/t Au.

 

A drill program has been designed in conjunction with external consultants to
facilitate an MRE being calculated. This program has been designed with the
multiple objectives of infilling previous drilling, expanding beyond current
drilling to define the boundaries, and understanding the geological controls
upon mineralisation and the variations in geology and grade across the
deposit.

 

Holes will be drilled in an order that attempts to address these issues
concurrently.

 

As a result of the shallow nature of mineralisation, holes are generally
short, taking between three and four days to complete on average.  When the
Company reassumed control of the Project in December 2024, samples were
shifted to a fire-assay laboratory facility in Medellin, that has consistently
provided 3-4 days turnaround of assay results.  The Company is thus currently
averaging roughly one hole per week with only one rig - an exceptionally fast
rate of progress by industry standards.

 

These three holes announced today are a continuation of this infill program
and have all returned exceptional results (most especially PEP047), with thick
sequences of high-grade gold mineralisation commencing from surface.

 

 Hole Number     From (m)     To (m)     Interval (m)    Au (g/t)
 PEP047          0            104        104             6.61
 including       5            41.6       36.6            10.23
 including       83.05        98.45      15.4            10.3
 PEP048          0            32.3       32.3            3.65
 including       5            27.8       22.8            4.51
 PEP049          0            94.2       94.2            3.74
 including       0            6.65       6.65            7.27
 including       17.85        40.35      22.5            5.61
 including       61.55        82.15      20.6            5.04

Table 1. Latest drill Intercepts, Pepas Prospect

 

Infill drilling is ongoing, but the recent holes are already beginning to
provide greater understanding of the genesis of Pepas and, as importantly,
grade distribution which will be vital for mine planning studies.

 

While drilling continues, in the near term, the Company will soon begin to
undertake additional studies on such issues as metallurgy, mining planning and
logistics, so that Pepas can be advanced as quickly as possible post its
maiden MRE.

 

 

Figure 2.  Plan of holes

 

 

Figure 3. Section, PEP047

 

Figure 4. Section PEP048 and PEP049

 

El Cedro

The El Cedro prospect is a large gold porphyry system, located toward the
south of the Anzá project, on the same granted EL as the Pepas and APTA
deposits.

 

As previously announced (28(th) May 2025), the Company had commenced a large
soil sampling program at El Cedro, designed to expand upon previous work by
Anglo American and the Company's previous JV partner. This sampling program
was roughly 1/3 complete when it had to be suspended due to road damage
sustained from an unusually wet season in the region.  Rains have now abated,
and this road damage has been repaired such that Company geological crews will
be returning to El Cedro this week to recommence this program.

 

 

Orosur CEO Brad George commented:

"The latest results at Pepas continue to impress. While size remains to be
defined, the picture of Pepas as a highly lucrative mining proposition is
rapidly solidifying. We are increasingly confident that there is a
commercially viable opportunity at Pepas and so we will very soon commence
non-drill related studies to begin the process of advancing Pepas toward
development."

 

 

Colombia - ANZÁ Project

The Anzá Project is now 100% owned by the Company following 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, which is located 50km west of Medellin, is easily accessible and
boasts excellent infrastructure including water, power and communications as
well as a large exploration camp.

 

From September 2018 to November 2024, the Anzá Project was under the control
of its previous JV partner MMA, itself a 50/50 venture between the world's two
largest gold miners, Agnico Eagle Mines and Newmont Mining.

 

Prospects

The Company is currently focussed on three prospects within the Anzá Project
- Pepas, APTA and El Cedro. All three prospects are within the same granted
exploration title that is broken into two, non-contiguous pieces (Figure 2).

 

Drilling is currently being undertaken at the Pepas prospect in the northern
extent of the Anzá Project (pre-acquisition) over 10km north of the central
base camp at APTA. In parallel, mapping and sampling is being undertaken over
the El Cedro porphyry system in the south of the project area.

 

 

Figure 5. Main prospects, licences pre-MMA acquisition

Holes Drilled post MMA Transaction

38 holes have been drilled at Pepas since the MMA Transaction in November
2024.

Assay results are tabulated below.

 

 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
 PEP023          0            15         15              1.7
 PEP024          9.24         15.6       6.35            1.99
 PEP025          0            10.1       10.1            1.45
                 16.5         79         62.5            5.4
 PEP026          0            14.8       14.8            0.57
                 43.6         72         28.4            2.52
 PEP027          1            80.15      79.15           2.0
 PEP028          29.5         60.85      31.35           1.61
 PEP029          0            30.7       30.7            0.31
 PEP030          0            77.9       77.9            0.32
                 115.6        122.6      7               0.31
 PEP031B         28.15        41.1       12.95           0.73
                 74.1         95.9       20.8            0.3
 PEP032          0            92         92              1.68
 PEP033          0            21.3       21.3            5.88
 PEP034          36           95         59              10.15
 PEP035          0            11.4       11.4            2.71
 PEP036B         0            40.45      40.45           0.62
 PEP037          0            3          3               0.65
 PEP038          0            16.8       16.8            0.68
 PEP039          No significant intersections
 PEP040          0            10.25      10.25           1.35
 PEP041          34.35        66.1       31.75           2.01
 PEP042          104.8        107.55     2.75            1.41
                 116.45       119.7      3.25            4.89
 PEP043          No significant intersections
 PEP044          5.8          44.3       38.5            6.01
 PEP045          9.5          71.8       62.3            12.76
 PEP046          0            53.2       53.2            3.36
 PEP047          0            104        104             6.61
 PEP048          0            32.3       32.3            3.65
 PEP049          0            94.2       94.2            3.74

Table 2.  Results to date, post MMA Transaction

 

 

For further information, visit www.orosur.ca (http://www.orosur.ca) , follow
on X @orosurm or please contact:

 

Orosur Mining Inc

Louis Castro, Chairman,

Brad George, CEO

info@orosur.ca

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

orosur@flagstaffcomms.com

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 (Withdrawal) 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
 PEP-023   403245       704927        969                -50       43
 PEP-024   403245       704927        969                -78       43
 PEP-025   403369       704888        1001               -45       43
 PEP-026   403339       704955        1008               -63       50
 PEP-027   403468       704909        1003               -46       228
 PEP-028   403398       704957        1012               -58       223
 PEP-029   403311       705018        1011               -50       50
 PEP-030   403311       705018        1011               -50       000
 PEP-031B  403486       704901        998                -52       220
 PEP-032   403431       704861        982                -60       15
 PEP-033   403431       704861        982                -65       100
 PEP-034   403431       704861        982                -45       315
 PEP-035   403369       704882        996                -45       223
 PEP-036   403311       705152        989                -45       30
 PEP-037   403354       705227        958                -50       210
 PEP-038   403332       705219        967                -45       128
 PEP-039   403411       704798        957                -45       73
 PEP-040   403369       704882        995                -80       212
 PEP-041   403373       704936        1008               -50       3
 PEP-042   403396       705038        716                -50       82
 PEP-043   403298       704942        981                -50       43
 PEP-044   403402       704948        1011               -62       33
 PEP-045   403406       704949        1011               -60       223
 PEP-046   403420       704933        1007               -53       43
 PEP-047   403414       704927        1008               -74       223
 PEP-048   403448       704922        1005               -54       043
 PEP-049   403447       704920        1005               -55       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,
and a large number of licence applications, totalling 399km2, in the prolific
Mid-Cauca belt of Colombia.

 

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

The information in this news release was compiled, reviewed, verified and
approved by Mr. Brad George, BSc Hons (Geology and Geophysics), MBA, Member of
the Australian Institute of Geoscientists (MAIG), CEO of Orosur Mining Inc.
and a qualified person as defined by National Instrument 43-101.

 

Orosur Mining Inc. staff follow standard operating and quality assurance
procedures to ensure that sampling techniques and sample results meet
international reporting standards.

 

Drill core is split in half over widths that vary between 0.3m and 2m,
depending upon the geological domain. One half is kept on site in the Minera
Anzá core storage facility, with the other sent for assay.

 

Industry standard QAQC protocols are put in place with approximately 10% of
total submitted samples being blanks, repeats or Certified Reference Materials
(CRMs).

 

Samples for holes PEP-001 to PEP-011 were sent to the Medellin preparation
facility of ALS Colombia Ltd, and then to the ISO 9001 certified ALS Chemex
laboratory in Lima, Peru.

 

Samples from PEP-012 onwards are sent to Medellin laboratory of Actlabs for
preparation and assay.

 

30 gram nominal weight samples are then subject to fire assay and AAS analysis
for gold with gravimetric re-finish for overlimit assays of >5 g/t.
ICP-MS Ultra-Trace level multi-element four-acid digest analyses may also
undertaken for such elements as silver, copper, lead and zinc, etc.

 

Gold intersections are reported using a lower cut-off of 0.3g/t Au over 3m.

 

Intersections are quoted as downhole thicknesses.  True thicknesses are
unknown.

 

Forward Looking Statements

 

All statements, other than statements of historical fact, contained in this
news release constitute "forward looking statements" within the meaning of
applicable securities laws, including but not limited to the "safe harbour"
provisions of the United States Private Securities Litigation Reform Act of
1995 and are based on expectations estimates and projections as of the date of
this news release.

 

Forward-looking statements include, without limitation, the continuing focus
on the Pepas prospect, the exploration plans in Colombia and the funding of
those plans, and other events or conditions that may occur in the future.
There can be no assurance that such statements will prove to be accurate.
Actual results and future events could differ materially from those
anticipated in such forward-looking statements. Such statements are subject to
significant risks and uncertainties including, but not limited to, those
described in the Section "Risks Factors" of the Company's MD&A for the
year ended May 31, 2024. The Company's continuance as a going concern is
dependent upon its ability to obtain adequate financing, to reach profitable
levels of operations and to reach a satisfactory closure of the Creditor´s
Agreement in Uruguay. These material uncertainties may cast significant doubt
upon the Company's ability to realize its assets and discharge its liabilities
in the normal course of business and accordingly the appropriateness of the
use of accounting principles applicable to a going concern. The Company
disclaims any intention or obligation to update or revise any forward-looking
statements whether as a result of new information, future events and such
forward-looking statements, except to the extent required by applicable law.

 

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