REG - Orosur Mining Inc - Pepas drilling continues to intersect high grades

Orosur MiningAnnouncement

07/10/2025 07:00

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RNS Number : 2646C  Orosur Mining Inc  07 October 2025

 

 

 

Orosur Mining Inc - Pepas definition drilling continues to intersect high
grades.

 

·    Assays for five more holes from the Pepas MRE infill program include:

o PEP060 - 63.55m @ 8.23g/t Au

o PEP064 - 49.95m @ 4.29 g/t Au

·    Mid-program Resource drilling review underway.

 

London, October 7th, 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.

 

Anzá - Colombia

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

 

This drilling program continues to progress well and remains on target,
subject to a mid-program review.  Drilling is currently focussing on locating
and defining the margins to mineralisation and on better understanding the
geological controls on the high grade that is evident in the central part of
the Pepas orebody.

 

Results from these five holes remain consistent with expectations and continue
to develop the geological model that is required as part of the Mineral
Resource process.

 

 

 Hole Number     From (m)     To (m)     Interval (m)    Au (g/t)
 PEP060          15.25        78.8       63.55           8.23
 including       24.85        62.35      37.5            12.99
 PEP061          3            6.4        3.4             0.48
 PEP062          2.2          9.25       7.05            0.47
                 60.8         66.1       5.3             0.48
 PEP063          0            14         14              2.56
                 54.7         61.7       7               1.21
 PEP064          0            18.5       18.5            1.28
                 25.65        75.6       49.95           4.29
 including       44.9         60.5       15.6            9.88

Table 1. Latest drill Intercepts, Pepas Prospect

 

Figure 1.  Plan of holes

 

Figure 2. Section, PEP060

 

 

Figure 3. Section, PEP064

 

 

The Company is currently engaging with its geological consultants in advance
of formally triggering the MRE process to ensure that work on the deposit is
sufficiently advanced, and that all the necessary inputs are prepared ahead of
the required site visit by the resource consultants, probably at the start of
November.

 

Orosur CEO Brad George commented:

"Pepas continues to move inexorably forward.  The NI43-101 MRE process is
rigorous, but all of the pieces are falling into place".

 

 

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 3. Main prospects, licences and applications pre-MMA acquisition

 

 

Holes Drilled post MMA Transaction

53 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
 PEP050          0            34         34              2.33
 PEP051          0            7.4        7.4             0.43
                 11.2         72.5       61.3            3.36
 PEP052          0            4.4        4.4             2.24
                 9.4          81.25      71.85           6.13
 PEP053          17           27.1       10.1            0.9
 PEP054          20           40.6       20.6            2.01
 PEP055          22.05        69.3       47.25           15.25
 PEP056          6            28.5       22.5            1.64
 PEP057          10.85        18.3       7.45            3.05
                 29.8         46.9       17.1            5.47
 PEP058          32.95        67.8       34.85           3.42
 PEP059          13.4         27.6       14.2            0.75
 PEP060          15.25        78.8       63.55           8.23
 PEP061          3            6.4        3.4             0.48
 PEP062          2.2          9.25       7.05            0.47
                 60.8         66.1       5.3             0.48
 PEP063          0            14         14              2.56
                 54.7         61.7       7               1.21
 PEP064          0            18.5       18.5            1.28
                 25.65        75.6       49.95           4.29

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
 PEP-050   403459       704905        1003               -45       43
 PEP-051   403391       704928        1011               -61       43
 PEP-052   403391       704928        1011               -87       43
 PEP-053   403391       704929        1012               -60       223
 PEP-054   403380       704954        1011               -52       43
 PEP-055   403380       704954        1011               -86       223
 PEP-056   403371       704970        1012               -61       43
 PEP-057   403371       704970        1012               -71       223
 PEP-058   403371       704970        1012               -85       223
 PEP-059   403384       704976        1007               -59       43
 PEP-060   403372       704908        1005               -55       43
 PEP-061   403361       704988        1010               -80       223
 PEP-062   403361       704988        1010               -61       43
 PEP-063   403345       705005        1009               -50       80
 PEP-064   403356       704923        1005               -51       43

 

*  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, 2025. 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 formal 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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