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Goldshore Intersects 25.3m of 0.92 g/t Au, Including 3.15m of 5.15 g/t Au from 391.85m, Proving Continuity of Shears Between the Main and Southwest Zones

Drill Results

Goldshore Intersects 25.3m of 0.92 g/t Au, Including 3.15m of 5.15 g/t Au from

391.85m, Proving Continuity of Shears Between the Main and Southwest Zones

VANCOUVER, B.C., August 8 , 2025: Goldshore Resources Inc. (TSXV: GSHR / OTCQB:

GSHRF / FWB: 8X00) (“Goldshore” or the “Company”), is pleased to announce its latest assay

results from its recently completed 20,000-meter winter drill program with the final results from

the Golden Gate Zone, a previously undrilled section between the Main and Southwest Zones of

the Moss Gold Project in Northwest Ontario, Canada (the “Moss Gold Project”). A total of 1,380

meters were drilled underneath a saddle in the conceptual open pit with the goal of expanding the

resource beneath the current proposed open pit for a future mineral resource estimate.

Michael Henrichsen, CEO of Goldshore commented, “We are pleased to drill mineralization within

the Golden Gate Zone, the gap between the Southwest and Main zones. The recent drilling has

occurred in a volume that is currently modelled as having few shears extending from the

neighbouring zones and as a result the numerous shears intersected will convert waste in the

current resource mode to mineralized resource. This should enable the Southwest and Main Zone

conceptual open pits to join into a single proposed pit with a less pronounced saddle.”

Highlights

• Four drill holes were completed to infill a data gap beneath a saddle in the conceptual

open pit between the Main and Southwest Zones, an area that was previously untested

and had mineralized shears extended from the neighboring areas. Drilling intersected

medium-grade marginal shears that confirm the continuity of mineralized shears through

this volume with best intercepts of:

o 2.75m of 3.08 g/t Au from 119.25m in MMD-25-184

o 20m of 0.92 g/t Au from 154m in MMD-25-186, including

▪ 4m of 3.01 g/t Au from 159m

o 26.35m of 0.59 g/t Au from 279.85m in MMD-25-187, and

o 25.3m of 0.92 g/t Au from 390m, including

▪ 3.15m of 5.15 g/t Au from 391.85m

• Results from the two remaining shallow holes drilled from ice last winter tested shallow

parts of marginal shears on the southern flank of the Main Zone confirming the extension

of marginal shears including:

o 12m of 0.90 g/t Au from 157m in MMD-25-172, including

▪ 10m of 1.00 g/t Au from 157m

o 8.2m of 0.88 g/t Au from 90.8m in MMD-25-173, including

▪ 2.2m of 2.84 g/t Au from 157m

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Technical Overview

Figure 1 shows the location of the drill holes being reported with respect to the completed winter

drill program, while Figure 2 illustrates a cross section through drill holes MMD-25-186 and MMD-

25-187 that demonstrates the potential to extend the mineralized shears zones between the Main

and Southwest Zones to depth. Tables 1 & 2 summarize significant intercepts and drill hole

locations, respectively.

Figure 1: Illustrates the 2025 completed winter drill program targeting resource expansion within the conceptual open

pit outlined in grey. Drill holes being reported are highlighted in red.

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Figure 2: Drill section through holes MMD-25-186 and -187 illustrating the discovery of a new set of medium-grade

gold-mineralized shears that connects the Main and Southwest Zones

Hole MMD-25-172 was drilled from Snodgrass Lake during the winter ice drilling program testing

the shallow extension of deeper marginal shears on the southern flank of the Main Zone . The

hole collared into an alternati ng andesite and dacitic volcanic package with swarms of meter -

scale weak to moderately sheared, sericite -silica-chlorite altered diorite and porphyritic diorite.

Stronger sheared sections of diorite were mineralized with the presence of pyrite and chalcopyrite

returning a modest intercept of 12m of 0.90 g/t Au from 157m, including 10m of 1.00 g/t Au from

157m up dip and along strike of existing mineralized marginal shears.

Hole MMD-25-173 was drilled from Snodgrass Lake, approximately100m north of MMD-25-172.

The hole collared into alternating dacitic and andesitic volcanics before intersecting the Main Zone

sericite-hematite and epidote-chlorite altered diorite complex at 90m. Local areas of more intense

shearing contained higher-grade mineralization of pyrite and chalcopyrite with intercepts of 8.2m

of 0.88 g/t Au from 90.8m, including 2.2m of 2.84 g/t Au from 90.8m, and 14.0m of 0.35 g/t Au

from 160m. The hole was stopped short of the core shear network as the volume had been

previously drilled.

Holes MMD-25-184, MMD-25-186, and MMD-25-187 were drilled from the same setup on the

western shore of Snodgrass Lake, targeting the gap between the Main and Southwest Zones to

test the continuity of mineraliz ed shears between the two zones. The holes were drilled at an

oblique angle to the primary foliation due to restricted drill sites. This provided the added benefit

of testing a possible NS-structure that offsets the Southwest Zone from the main Moss structure

corridor.

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All holes collared in a porphyritic diorite and quickly transitioned into dacite volcanics with swarms

of weak to moderately sheared, sericite -silica-hematite altered diorite and granodiorite dykes

increasing in frequency and alteration and mineralization intensity with depth. At approximately

100m the hole intersected roughly one hundred meters of sheared, sericite-silica-hematite altered

diorite package with pyrite mineralization returning intercepts including 8.3m of 0.63 g/t Au from

105.7m and 2.75m of 3.08 g/t Au from 119.25m in MMD-25-184; 20m of 0.92 g/t Au from 154m,

including 4m of 3.01 g/t Au from 159m in MMD-25-186; and 26.35m of 0.59 g/t Au from 279.85m

in MMD -25-187. The overall lithological and alteration package appear more similar to the

Southwest Zone than the Main Zone with the location of the intercepts suggesting the two zones

are not directly connected. Holes MMD-25-184 and -186, which were drilled at the same

declination but 20° different azimuths, intersected a wide volcanic section characterized by strong

late brecciation and local faulting after which the frequency of diorite intrusions are greatly

reduced. MMD-25-187, which was drilled more steeply beneath MMD-25-186, intersected the

zone of late brittle deformation notably deeper than the up-dip holes after intersecting a second

one hundred and fifty meter wide sericite-chlorite altered diorite complex, returning an intercept

of 25.3m of 0.92 g/t Au from 390m , including 3.15m of 5.15 g/t Au from 391.85m , suggesting a

modest western dip to the structure.

Hole MMD-25-195 was drilled 135m northwest along the shore of Snodgrass Lake at a similar

oblique angle. The hole collared into a dacite volcanic dominate d sequence with swarms of

weakly sheared, sericite-silica-hematite altered diorite, porphyritic diorite, and granodiorite dykes.

The dykes are weakly mineralized with pyrite and narrow low-grade intercepts, such as 5.55m of

0.52 g/t Au from 213.45 and 6.45m of 0.51 g/t Au from 328m. The hole intersected a similar a

wide volcanic section with strong late br ecciation and local faulting after which the diorite

intrusions become notably less frequent.

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Figure 3: Hole MMD-25-187: Brecciated and faulted contact of sheared altered diorite and intermediate volcanics

with intercept of 25.3m of 0.92 g/t Au from 390m, including 3.15m of 5.15 g/t Au from 391.85m.

Table 1: Significant intercepts

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HOLE ID FROM TO LENGTH (m) TRUE

WIDTH (m)

CUT GRADE

(g/t Au)

UNCUT

GRADE

(g/t Au)

MMD-25-172 19.00 21.00 2.00 0.8 0.43 0.43

143.00 147.00 4.00 1.8 0.51 0.51

157.00 169.00 12.00 5.6 0.90 0.90

incl 157.00 167.00 10.00 4.6 1.00 1.00

198.00 200.80 2.80 1.3 0.42 0.42

MMD-25-173 90.80 99.00 8.20 4.2 0.88 0.88

incl 90.80 93.00 2.20 1.1 2.84 2.84

124.00 130.00 6.00 3.2 0.57 0.57

160.00 174.00 14.00 7.6 0.35 0.35

191.00 197.00 6.00 3.3 0.57 0.57

203.00 206.00 3.00 1.7 0.53 0.53

MMD-25-184 105.70 114.00 8.30 3.0 0.63 0.63

119.25 122.00 2.75 1.0 3.08 3.08

166.00 170.00 4.00 1.5 1.00 1.00

176.50 180.90 4.40 1.6 0.70 0.70

189.00 198.95 9.95 3.7 0.53 0.53

MMD-25-186 77.35 83.00 5.65 4.1 0.50 0.50

incl 81.00 83.00 2.00 1.4 1.03 1.03

125.00 130.50 5.50 4.0 0.38 0.38

139.00 142.00 3.00 2.2 0.46 0.46

154.00 174.00 20.00 14.6 0.92 0.92

incl 159.00 163.00 4.00 2.9 3.01 3.01

246.00 248.00 2.00 1.5 0.35 0.35

MMD-25-187 20.00 22.00 2.00 0.8 0.42 0.42

168.00 171.00 3.00 1.4 0.75 0.75

208.00 211.40 3.40 1.6 0.42 0.42

227.00 234.00 7.00 3.3 0.90 0.90

incl 229.00 231.00 2.00 0.9 1.98 1.98

279.85 306.20 26.35 12.8 0.59 0.59

incl 296.00 298.55 2.55 1.2 1.18 1.18

316.00 322.30 6.30 3.1 0.43 0.43

329.90 332.00 2.10 1.0 0.95 0.95

342.00 348.00 6.00 3.0 0.63 0.63

390.00 415.30 25.30 12.7 0.92 0.92

incl 391.85 395.00 3.15 1.6 5.15 5.15

423.00 429.00 6.00 3.0 0.38 0.38

MMD-25-195 213.45 219.00 5.55 2.2 0.52 0.52

302.40 314.90 12.50 5.2 0.31 0.31

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328.00 334.45 6.45 2.7 0.51 0.51

392.00 399.00 7.00 2.9 0.31 0.31

Intersections calculated above a 0.3 g/t Au cut off with a top cut of 30 g/t Au and a maximum internal waste

interval of 5 metres. Shaded intervals are intersections calculated above a 1.0 g/t Au cut off. Intervals in bold are

those with a grade thickness factor exceeding 20 gram x metres / tonne gold. True widths are approximate and

assume a subvertical body.

Table 2: Drill Collars

HOLE EAST NORTH RL AZIMUTH DIP EOH

MMD-25-172 668,831 5,378,606 426 328.0 -66.5 252.00

MMD-25-173 668,795 5,378,690 426 328.1 -66.9 252.00

MMD-25-184 668,537 5,378,547 437 80.2 -44.8 249.00

MMD-25-186 668,537 5,378,546 437 100.6 -44.9 291.00

MMD-25-187 668,537 5,378,546 437 100.7 -65.0 429.00

MMD-25-195 668,412 5,378,643 428 92.1 -44.9 411.10

Analytical and QA/QC Procedures

The HQ diameter drill core (NQ-diameter for holes MMD -25-172 and -173) has been oriented

using ACTIII or equivalent tools and validated in the core shack. All core has been sawed in half

cut just off the core orientation line (bottom of hole) with the right half (looking down hole) of the

core bagged and sent a third-party analytical laboratory. The left half of the core was returned to

core boxes and is stored at Goldshore’s Kashabowie core yard facility.

All samples were sent to ALS Geochemistry in Thunder Bay for preparation and analysis was

performed in the ALS Vancouver analytical facility. ALS is accredited by the Standards Council of

Canada (SCC) for the Accreditation of Mineral Analysis Testing Labor atories and CAN -P-4E

ISO/IEC 17025. Samples were analysed for gold via fire assay with an AA finish (“Au-AA23”) and

48 pathfinder elements via ICP-MS after four-acid digestion (“ME-MS61”). Samples that assayed

over 10 ppm Au were re-run via fire assay with a gravimetric finish (“Au-GRA21”).

In addition to ALS quality assurance / quality control (“ QA/QC”) protocols, Goldshore has

implemented a quality control program for all samples collected through the drilling program. The

quality control program was designed by a qualified and independent third party, with a focus on

the quality of analytical results for gold. Analytical results are received, imported to our secure on-

line database and evaluated to meet our established guidelines to ensure that all sample batches

pass industry best practic e for analytical quality control. Certified reference materials are

considered acceptable if values returned are within three standard deviations of the certified value

reported by the manufacture of the material. In addition to the certified reference material, certified

blank material is included in the sample stream to monitor contamination during sample

preparation. Blank material results are assessed based on the returned gold result being less

than ten times the quoted lower detection limit of the ana lytical method. The results of the on -

going analytical quality control program are evaluated and reported to Goldshore by Orix

Geoscience Inc.

Qualified Person

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Peter Flindell, PGeo, MAusIMM , MAIG, Vice -President, Exploration, of the Company, and a

qualified person under National Instrument 43-101 – Standards of Disclosure for Mineral Projects,

has approved the scientific and technical information contained in this news release.

Mr. Flindell has verified the data disclosed. To verify the information related to the winter drill

program at the Moss Gold Project, Mr. Flindell has visited the property several times; discussed

and reviewed logging, sampling, bulk density, core cutting and sample shipping processes with

responsible site staff; discussed and reviewed assay and QA/QC results with responsible

personnel; and reviewed supporting documentation, including drill hole location and orientation

and significant assay interval calculations. He has also overseen the Company’s health and safety

policies in the field to ensure full compliance, and consulted with the Project’s host indigenous

communities on the planning and implementation of the drill program, particularly with respect to

its impact on the environment and the Company’s remediation protocols.

Amendment to NPI Agreement

The Company also announces that it has entered into a n amending agreement to the net profit

interest ("NPI") purchase agreement dated May 1, 2025 (the “Agreement”), previously disclosed

in the Company’s news release dated May 30, 2025. Pursuant to the amendment, the Company

has set a limit on the number of shares issuable to the NPI vendor as part of the final consideration

payable under the Agreement. Specifically, the total number of shares issuable on the fourth

anniversary of the NPI Agreement will not exceed 1,176,470 common shares. All other terms and

conditions of the Agreement remain unchanged.

About Goldshore

Goldshore is a growth -oriented gold company focused on delivering long -term shareholder and

stakeholder value through the acquisition and advancement of primary gold assets in tier -one

jurisdictions. It is led by the ex -global head of structural geology for the world’s largest gold

company and backed by one of Canada’s pre -eminent private equity firms. The Company’s

current focus is the advanced stage 100% owned Moss Gold Project which is positioned in

Ontario, Canada, with direct acces s from the Trans-Canada Highway, hydroelectric power near

site, supportive local communities and skilled workforce. The Company has invested over $ 75

million of new capital and completed approximately 100,000 meters of drilling on the Moss Gold

Project, which, in aggregate, has had over 2 55,000 meters of drilling. The 2024 updated NI 43 -

101 mineral resource estimate (“ MRE”) has expanded to 1.54 million ounces of Indicated gold

resources at 1.23 g/t Au and 5.20 million ounces of Inferred gold resources at 1.11 g/t Au. The

MRE only encompasses 3.6 kilometers of the 35+ kilometer mineralized trend, remains open at

depth and along strike and is one of the few remaining major Canadian gold deposits positioned

for development in this cycle. Please see NI 43-101 technical report titled: “Technical Report and

Updated Mineral Resource Estimate for the Moss Gold Project, Ontario, Canada,” dated March

20, 2024 with an effective date of January 31, 2024 available under the Company’s SEDAR+

profile at www.sedarplus.ca. For more information, please visit SEDAR+ (www.sedarplus.ca) and

the Company’s website (www.goldshoreresources.com).

For More Information – Please Contact:

Michael Henrichsen

President, Chief Executive Officer and Director

Goldshore Resources Inc.