MKO.V · 2025-08-14 12:00:00

Mako Mining Intersects 27.86 g/t Au over 4.1 m (Estimated True Width) at 20 m Below Surface, and 197.80 g/t Au over 0.7 m (ETW) 345 m down dip from the El Golfo Discovery Hole

Drill Results

595 Burrard Street, Suite 2833

Vancouver, BC V7X 1K8

Tel: (604) 646-1580

www.makominingcorp.com

TSX-V: MKO | OTCQX: MAKOF

Suite 700 - 838 West Hastings St.

Vancouver, BC - V6C 0A6

IR: (647) 203-8793

www.makominingcorp.com

TSX-V: MKO | OTCQX: MAKOF

August 14th, 2025

TSX-V: MKO; OTCQX: MAKOF

Mako Mining Intersects 27.86 g/t Au over 4.1 m (Estimated True Width) at 20 m Below

Surface, and 197.80 g/t Au over 0.7 m (ETW) 345 m down dip from the El Golfo Discovery

Hole

Mako Mining Corp. (TSX-V: MKO; OTCQX: MAKOF) (“Mako” or the “ Company”) is pleased to report

additional results from the 2025 reverse circulation (“RC”) and diamond drill program at the El Golfo area

within the El Jicaro Concession located immediately south of the company’s 100% owned Las Conchitas

and San Albino Gold deposits in Nicaragua, which are currently being mined by the Company (refer to

Figure 1).

For the first time in modern history, drilling has commenced in the El Golfo area. The drill program was

initially designed for 3,000 metres (m) of RC drilling. It has since been expanded to 6,500 m of combined

RC and diamond drilling in response to encouraging drill results, including the Discovery Hole EJ25-RC53

which intersected 39.15 grams per tonne (“g/t”) gold (“Au”) and 27.9 g/t silver (“Ag”) over 5.9 m (Estimated

True Width (“ETW”), 19.2 m below surface (see Press Release dated May 21st, 2025).

Highlights

• EJ25-07

o 197.80 g/t Au and 349.0 g/t Ag over 0.70 m (ETW)

• EJ25-RC54

o 27.86 g/t Au and 2.1 g/t Ag over 4.00 m (ETW)

• EJ25-14 intersected two mineralized intervals

o 8.79 g/t Au and 6.6 g/t Ag over 2.50 m (2.20 m ETW)

o 37.96 g/t Au and 11.7 g/t Ag over 2.70 m (2.40 m ETW)

• EJ25-RC61

o 77.70 g/t Au and 76.0 g/t Ag over 1.00 m (0.90 m ETW)

• EJ25-RC65

o 44.10 g/t Au and 45.6 g/t Ag over 1.00 m (ETW)

• EJ25-RC86

o 11.61 g/t Au and 26.1 g/t Ag over 4.00 m (3.80 m ETW)

Akiba Leisman, CEO of Mako states “we announced the Discovery Hole at El Golfo in May, where we

intersected a shallow intercept of over 39 g/t Au over nearly 6 meters Estimated True Width and within 20

meters from surface. This hole was only the second hole that was ever drilled at El Golfo, and therefore

Mako did not have enough information to meet the minimum criteria to declare a Discovery at the time.

Since May, follow up holes at El Golfo not only confirm the Discovery, but it is starting to define a relatively

large footprint that can be measured in hundreds of meters in dip potential with strike trends measured

over multiple kilometers. We will be following up on these results with a much more aggr essive drill

program, and if successful, eventually incorporate the El Golfo area into our mine plan.”

The main objective of the 2025 drilling campaign in the El Golfo area is to test the high-grade mineralization

trends outlined by geochemical soil surveys, geological mapping, prospecting and limited trenching.

Numerous historical workings including adits, mine dumps and more recent artisanal surface workings

(pits) were mapped and sampled. In total, four linear anomalous trends have been outlined, oriented in a

northeast-southwest direction. Two of these trends , with lengths over 1,000 meters , appear to be a

continuation of the gold geochemical anomalies over 1 kilometre away at the Las Conchitas area, which

is currently being mined by the Company.

The initial drilling comprising 3,000 m of RC drilling successfully tested a conceptual model for the El Golfo

mineralization. This model consists of multiple subparallel gold bearing quartz veins with a northeast -

southwest strike and a gentle northwest dip. The veins are hosted by broadly uniform host rocks, consisting

of deformed carbonaceous schists similar to those being mined by Mako . The Company has initiated an

additional 3,500 m diamond drill program aiming to better define the geometry and extent of mineralization.

Further drilling may be needed to confirm the grade and distribution of mineralization.

Drill hole EJ25-RC54 intersected a wide, high-grade interval (refer to Table 1) of 27.86 g/t Au and 2.1 g/t

Ag over 4.0 m (ETW), 20 m below surface , and confirmed a 21.0 m down -dip extension of the gold

mineralization intersected by RC drill hole EJ25-RC53 of 39.15 g/t Au and 27.8 g/t Ag over 8.0 m (5.9 m

ETW), 19.2 m below surface (see Press Release dated May 21, 2025). Both drill holes tested a prominent

NE-SW oriented structure interpreted as the Pavona vein.

Diamond drill hole EJ25-07 successfully intersected four zones of mineralization highlighted by the lowest

zone at 153 m below surface which graded 197.80 g/t Au and 349.0 g/t Ag over 0.70 m (ETW) . This

intersection is considered to be significant since it is interpreted to represent a 345 m down-dip extension

of mineralization intersected by the Discovery Hole EJ25-RC53 mentioned above. Results justify additional

drilling to initiate an assessment of the potential of the mineralized veins in the area (refer to Figure 2).

EJ25-14 intersected two mineralized intervals close to surface, 8.79 g/t Au and 6.6 g/t Ag over 2.50 m (2.2

m ETW) and 37.96 g/t Au and 11.7 g/t Ag over 2.70 m (2.4 m ETW), 7.2 m and 11.6 m below surface

respectively. This hole tested an 18 m SW strike extension of the high-grade mineralization intersected by

the Discovery Hole EJ25-RC53 and successfully confirmed the conceptual model for this area defined by

multiple gold bearing veins close to the surface (refer to Table 2).

Both EJ25-RC61 and EJ25 -RC62 inte rsected shallow, high-grade intervals at 78 m and 51 m below

surface, respectively. EJ25-RC61 intersected 77.70 g/t Au and 76.0 g/t Ag over 1.00 m (0.9 m ETW) and

EJ25-RC62 intersected 17.90 g/t Au and 28.7 g/t Ag over 1.00 m (ETW). These holes successfully tested

the potential for additional mineralized structure s below previously identified mineralization. Additional

drilling is required to test the full potential of this mineralized structure.

Drill hole EJ25-RC65 intersected 44.10 g/t Au and 45.6 g/t Ag over 1.00 m, confirming a 31 m SW strike

extension of the mineralization intersected by EJ25-RC54,

EJ25-RC86 intersected 11.61 g/t Au and 26.1 g/t Ag over 4.00 m (3.8 m ETW) a nd confirmed a 105 m

down-dip extension of the mineralization intercepted in EJ25-RC65, described above.

Table 1 - Assay Results of RC Drill Holes Reported in This Press Release

Zone RC Drill Hole From

(m)

Width

(m)

(g/t)

(g/t) Interval

30 31 1 103.90 6.7

31 32 1 2.40 1.1

32 33 1 0.29 0.4

33 34 1 4.84 0.2

42 43 1 2.79 4.7 2.79 g/t of Au and 4.7 g/t of Ag over 1.00 m

16 17 1 1.06 17.6 1.06 g/t of Au and 17.6 g/t of Ag over 1.00 m

37 38 1 1.38 6.6 1.38 g/t of Au and 6.6 g/t of Ag over 1.00 m

EJ25-RC56 2 3 1 1.01 2.2 1.01 g/t of Au and 2.2 g/t of Ag over 1.00 m

EJ25-RC57 1 2 1 1.18 2.1 1.18 g/t of Au and 2.1 g/t of Ag over 1.00 m

EJ25-RC59 19 20 1 1.14 7.0 1.14 g/t of Au and 7 g/t of Ag over 1.00 m

EJ25-RC60 28 29 1 1.69 7.6 1.69 g/t of Au and 7.6 g/t of Ag over 1.00 m

EJ25-RC61 77 78 1 77.70 76.0 77.70 g/t of Au and 76.0 g/t of Ag over 1.00 m

EJ25-RC62 84 85 1 17.90 28.7 17.90 g/t of Au and 28.7 g/t of Ag over 1.00 m

0 1 1 1.44 0.8 1.44 g/t of Au and 0.8 g/t of Ag over 1.00 m

36 37 1 1.90 3.4 1.90 g/t of Au and 3.4 g/t of Ag over 1.00 m

0 1 1 1.31 1.0 1.31 g/t of Au and 1.0 g/t of Ag over 1.00 m

35 36 1 5.22 8.1 5.22 g/t of Au and 8.1 g/t of Ag over 1.00 m

27 28 1 44.10 45.6 44.10 g/t of Au and 45.6 g/t of Ag over 1.00 m

40 41 1 1.59 1.7 1.59 g/t of Au and 1.7 g/t of Ag over 1.00 m

54 55 1 6.39 1.6 6.39 g/t of Au and 1.6 g/t of Ag over 1.00 m

26 27 1 1.38 6.0 1.38 g/t of Au and 6.0 g/t of Ag over 1.00 m

57 58 1 1.53 2.4 1.53 g/t of Au and 2.4 g/t of Ag over 1.00 m

EJ25-RC67 66 67 1 9.38 16.3 9.38 g/t of Au and 16.3 g/t of Ag over 1.00 m

EJ25-RC70 40 41 1 1.99 1.2 1.99 g/t of Au and 1.2 g/t of Ag over 1.00 m

EJ25-RC72 38 39 1 1.45 14.9 1.45 g/t of Au and 14.9 g/t of Ag over 1.00 m

38 39 1 3.14 10.7

39 40 1 2.08 4.7

23 24 1 3.12 6.8

24 25 1 5.72 17.1

22 23 1 1.61 4.4 1.61 g/t of Au and 4.4 g/t of Ag over 1.00 m

25 26 1 1.04 2.6 1.04 g/t of Au and 2.6 g/t of Ag over 1.00 m

37 38 1 5.96 21.5 5.96 g/t of Au and 21.5 g/t of Ag over 1.00 m

45 46 1 1.71 1.9 1.71 g/t of Au and 1.9 g/t of Ag over 1.00 m

EJ25-RC76 6 7 1 1.34 1.1 1.34 g/t of Au and 1.1 g/t of Ag over 1.00 m

EJ25-RC77 21 22 1 1.46 0.8 1.46 g/t of Au and 0.8 g/t of Ag over 1.00 m

EJ25-RC79 55 56 1 1.39 5.6 1.39 g/t of Au and 5.6 g/t of Ag over 1.00 m

50 51 1 1.48 0.7 1.48 g/t of Au and 0.7 g/t of Ag over 1.00 m

77 78 1 3.93 1.2 3.93 g/t of Au and 1.2 g/t of Ag over 1.00 m

EJ25-RC85 38 39 1 1.08 1.7 1.08 g/t of Au and 1.7 g/t of Ag over 1.00 m

81 82 1 36.70 79.6

82 83 1 6.35 11.7

83 84 1 2.27 10.3

84 85 1 1.11 2.7

Pavona

EJ25-RC54 27.86 g/t of Au and 2.1 g/t of Ag over 4.00 m

EJ25-RC55

EJ25-RC63

2.61 g/t of Au and 7.7 g/t of Ag over 2.00 m

EJ25-RC74 4.42 g/t of Au and 12.0 g/t of Ag over 2.00 m

EJ25-RC73

EJ25-RC80

EJ25-RC75

11.61 g/t of Au and 26.1 g/t of Ag over 4.00 mEJ25-RC86

EJ25-RC64

EJ25-RC65

EJ25-RC66

Table 2 - Assay Results of Diamond Drill Holes Reported in This Press Release

Note: The mineralized intervals shown in both tables above utilize a 1.0 g/t gold cut-off grade with not more than 1.0

m of internal dilution. *Widths are reported as drill lengths. **Estimated True Width is estimated from interpreted

sections. In addition to the drill holes presented in the tables above, the following drill holes returned only anomalous

values: EJ25-RC58, EJ25-RC68, EJ25-RC69, EJ25-RC78, EJ25-RC81, EJ25-RC83, EJ25-RC84, EJ25-RC87 and

EJ25-RC88. In addition to the drill holes presented in the tables above the following drill holes returned no significant

values: EJ25-RC71 and EJ25-RC82.

Zone DDH Drill Hole From

(m)

Width

(m)

(g/t)

(g/t) Interval

EJ25-04 65.3 65.7 0.4 28.6 34 28.60 g/t of Au and 30.4 g/t of Ag over 0.40 m

60.5 61.3 0.8 1.57 0.8

61.3 61.9 0.6 19.4 40.5

61.9 62.8 0.9 0.05 0.2

62.8 63.5 0.7 3.1 24.1

14.1 14.7 0.6 1.94 4 1.94 g/t of Au and 4.0 g/t of Ag over 0.60 m

47.3 47.7 0.4 1.76 11.6 1.76 g/t of Au and 11.6 g/t of Ag over 0.40 m

79.65 80 0.35 12 27.1 12.00 g/t of Au and 27.1 g/t of Ag over 0.35 m

Potosi 59.5 60 0.5 2.04 2 2.04 g/t of Au and 2.0 g/t of Ag over 0.50 m

109.5 110 0.5 5.39 4.3 5.39 g/t of Au and 4.3 g/t of Ag over 0.50 m

112 112.5 0.5 1.41 0.6 1.41 g/t of Au and 0.6 g/t of Ag over 0.50 m

153.1 153.8 0.7 197.8 349.0 197.8 g/t of Au and 349.0 g/t of Ag over 0.70 m

4.5 5 0.5 1.19 1 1.19 g/t of Au and 1.0 g/t of Ag over 0.50 m

16 16.5 0.5 1.02 1.1 1.02 g/t of Au and 1.1 g/t of Ag over 0.50 m

61.8 62.3 0.5 13.4 42 13.40 g/t of Au and 42 g/t of Ag over 0.50 m

106.75 107.3 0.5 1.68 4.9

107.25 108 0.75 0.03 0.2

108 109 1 1.1 0.7

4.5 5 0.5 4.49 1.4

5 5.5 0.5 3.68 4.9

55.9 56.3 0.4 1.78 7.9 1.78 g/t of Au and 7.9 g/t of Ag over 0.40 m

96.1 96.85 0.75 6.4 12 6.40 g/t of Au and 12.0 g/t of Ag over 0.75 m

120 120.5 0.5 2.28 2 2.28 g/t of Au and 2.0 g/t of Ag over 0.50 m

60.7 61.35 0.65 1 10.5

61.35 62 0.65 3.26 5.3

8.5 9.5 1 1.78 3.8 1.78 g/t of Au and 3.8 g/t of Ag over 1.00 m

19.8 20.4 0.6 85.9 32.3

20.4 21 0.6 14.2 6.4

21 21.5 0.5 2.2 1

24.8 25.4 0.6 7.9 3.7

25.4 25.9 0.5 0.53 1.3

25.9 26.6 0.7 84.1 56.6

15 15.5 0.5 1.09 2.9

15.5 16 0.5 1.95 7.1

25.2 26 0.8 1.46 2.7 1.46 g/t of Au and 2.7 g/t of Ag over 0.80 m

10 11.3 1.3 1 4.6

11.3 12 0.7 0.04 1.6

12 12.5 0.5 41.3 18.9

14.5 15 0.5 1.38 0.7

15 15.9 0.9 51.8 13

15.9 16.4 0.5 43.5 20.2

16.4 17.2 0.8 41.8 11.8

EJ25-08

EJ25-12

EJ25-10

EJ25-06

EJ25-07

4.09 g/t of Au and 3.2 g/t of Ag over 1.00 m

EJ25-09

0.87 g/t of Au and 1.2 g/t of Ag over 2.25 m

EJ25-05 5.04 g/t of Au and 14.0 g/t of Ag over 3.00 m

2.13 g/t of Au and 7.9 g/t of Ag over 1.30 m

EJ25-14

8.79 g/t of Au and 6.6 g/t of Ag over 2.50 m

37.96 g/t of Au and 11.7 g/t of Ag over 2.70 m

EJ25-13 1.52 g/t of Au and 5.0 g/t of Ag over 1.00 m

35.98 g/t of Au and 14.0 g/t of Ag over 1.70 m

35.49 g/t of Au and 23.6 g/t of Ag over 1.80 m

Pavona

Potosi

Pavona

Potosi

Pavona

Potosi

Pavona

Figure 1. Drill Hole Plan El Golfo

Figure 2. Cross section

Sampling, Assaying, QA/QC and Data Verification

Drill core was continuously sampled from inception to termination of the entire drill hole. Sample intervals

were typically one meter. Drill core diameter was HQ (6.35 centimeters). Geologic and geotechnical data

was captured into a digital database, core was photographed, then one-half split of the core was collected

for analysis and one-half was retained in the core library. Drill core samples were kept in a secured logging

and storage facility until such time that they were delivered to the Managua facilities of Bureau Veritas and

pulps were se nt to the Bureau Veritas laboratory in Vancouver for analysis . All reverse circulation (RC)

holes were drilled dry i.e above the water table and no water or other fluids were injected into the hole. RC

drill samples were collected every 1 meter using a center-return hammer and samples were obtained from

a Gilson chip splitter which is cleaned using compressed air after each sample. Samples were bagged and

labeled at the drill site under a geologist’s supervision and are logged on site by a geologist who vis ually

selects potential mineralized intervals for fire assay. The mineralized interval(s) including 3 -5 samples

above and below, the selected interval are continuously sampled and shipped to the Bureau Veritas Lab

(BV) in Managua, respecting the best chain of custody practices. Pulps are sent by Bureau Veritas to their

laboratory in Vancouver under their chain of custody for analysis. Gold was analyzed by standard fire

assay fusion, 30 gr aliquot, AAS finish. Samples returning over 10.0 g/t gold are analyzed utilizing standard

Fire Assay -Gravimetric method. The Company follows industry standards in its QA&QC procedures.

Control samples consisting of duplicates, standards and blanks were inserted into the sample stream at a

minimum ratio of 1 control sample per every 10 samples. Analytical results of control samples confirmed

reliability of the assay data.

Qualified Person

Brian Ray, M.Sc., P.Geo, a geologist and qualified person (as defined under NI 43 -101) has read and

approved the technical information contained in this press release. Mr. Ray is a consultant to the Company.

On behalf of the Board,

Akiba Leisman

Chief Executive Officer

About Mako

Mako Mining Corp. is a publicly listed gold mining, development and exploration company. The Company

operates the high-grade San Albino gold mine in Nueva Segovia, Nicaragua, which ranks as one of the

highest-grade open pit gold mines globally. Mako’s primary objective is to operate San Albino profitably

and fund exploration of prospective targets on its district-scale land package.

For further information: Mako Mining Corp., Akiba Leisman, Chief Executive Officer, E-mail:

[email protected], phone: (917) 558 -5289 or visit our website at

www.makominingcorp.com and SEDARPLUS www.sedarplus.ca.

Forward-Looking Information : Some of the statements contained herein may be considered “forward -looking

information” within the meaning of applicable securities laws. Forward-looking information can be identified by words

such as, without limitation, “estimate", "project", "believe", "anticipate", "intend", "expect", "plan", "predict", "may" or

"should" or variations thereon or comparable terminology. The forward -looking information contained herein reflects

the Company’s current beliefs and expectations, based on management’s reasonable assumptions, and includes,

without limitation, that the Company high -grade production will generate significant cash flows for the foreseeable

future. Mako’s primary objective to operate San Albino profitably and fund exploration of prospective targets on its

district-scale land package. Such forward -looking information is subject to a variety of risks and uncertainties which

could cause actual events or results to differ materially from those reflected in the forward -looking information,

including, without limitation, changes in the Company’s exploration and development plans and growth parameters

and its ability to fund its growth to reach its expected new production numbers; unanticipated costs; the October 24

measures having impacts on business operations not current expected, or new sanctions being imposed by the U.S.

Treasury Department or other government entity in Nicaragua in the future; and other risks and uncertainties as

disclosed in the Company’s public disclosur e filings on SEDAR at www.sedarplus.c a. Such information contained

herein represents management’s best judgment as of the date hereof, based on information currently available. Mako

does not undertake to update any forward-looking information, except in accordance with applicable securities laws.

Neither the 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.

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