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AUXX.V ·

Goldshore Announces Filing of Base Shelf Prospectus and Amendment to Option Agreement with Thunder Gold

Financings Mergers & Acquisitions Property Options & Staking Share Capital & Compensation

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Goldshore Announces Filing of Base Shelf Prospectus and Amendment to Option

Agreement with Thunder Gold

VANCOUVER, B.C., July 30, 2025: Goldshore Resources Inc. (TSXV: GSHR) (OTCQB:

GSHRF) (FSE: 8X00) (“ Goldshore” or the “ Company”), is pleased to announce that the

Company has filed a short form base shelf prospectus (the “Base Shelf Prospectus”) dated July

28, 2025 in each of the provinces and territories of Canada other than Quebec. The Company

further announces an amendment to an existing agreement with Thunder Gold Corp. (“ Thunder

Gold”) to earn into certain mining claims held by Thunder Gold in the Shebandowan greenstone

belt known as the Vanguard Project.

The Base Shelf Prospectus

The Base Shelf Prospectus allows the Company to offer and issue, from time to time, the following

securities: (a) common shares in the authorized share structure of the Company; (b) warrants

exercisable to acquire common shares and/or other securities of the Company; (c) subscription

receipts of the Company exchangeable for common shares and/or other securities of the

Company; and (d) securities comprised of more than one of common shares, warrants and/or

subscription receipts offered together as a unit, or a combination thereof, in one or more series

or issuances up to an aggregate total offering of $150,000,000 (or the equivalent thereof in other

currencies) during the 25-month period that the Base Shelf Prospectus, including any

amendments thereto, remains effective.

If any securities are offered under the Base Shelf Prospectus, the terms of such securities and

information regarding the intended use of the net proceeds resulting from a sale of such securities

would be established at the time of any offering and described in a shelf prospectus supplement

filed with the applicable Canadian securities regulatory authorities at the time of such offering.

Copies of the preliminary short form base shelf prospectus and Base Shelf Prospectus, as well

as any shelf prospectus supplements that may be filed in the future, can be found on the

Company's profile on SEDAR+ at www.sedarplus.ca.

Amended Agreement with Thunder Gold

Goldshore, Moss Lake Project Inc., and Thunder Gold Corp. have entered into a third amendment

agreement to the option agreement dated July 5, 2022. The amended agreement, among other

details, extends the payment deadline for $100,000 to the 36-month anniversary of the effective

date and revises the expenditure requirements for Goldshore to incur expenditures of at least

$5,311,200 with no time limit. Goldshore will maintain the claims in good standing while meeting

the earn-in requirements outlined in the amended agreement.

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

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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 access 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 255,000 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.

E: [email protected]

W: www.goldshoreresources.com

T: 1-604-404-4335

Neither the TSXV nor its Regulation Services Provider (as that term is defined in the policies of

the TSXV) accepts responsibility for the adequacy or accuracy of this release.

Cautionary Note Regarding Forward-Looking Statements

This news release contains statements that constitute “forward-looking statements.” Such forward

looking statements involve known and unknown risks, uncertainties and other factors that may

cause the Company’s actual results, performance or achievements, or developments to differ

materially from the anticipated results, performance or achievements expressed or implied by

such forward-looking statements. Forward looking statements are statements that are not

historical facts and are generally, but not always, identified by the words “expects,” “plans,”

“anticipates,” “believes,” “intends,” “estimates,” “projects,” “potential” and similar expressions, or

that events or conditions “will,” “would,” “may,” “could” or “should” occur. Forward-looking

statements in this news release include, among others, information with respect to the Company’s

expectations regarding any proposed offerings to be carried out by way of prospectus supplement

to the Base Shelf Prospectus and the amount and terms of any securities to be offered under the

Base Shelf Prospectus or any shelf prospectus supplements; and other statements that are not

historical facts.

By their nature, forward-looking statements involve known and unknown risks, uncertainties and

other factors which may cause our actual results, performance or achievements, or other future

events, to be materially different from any future results, performance or achievements expressed

or implied by such forward-looking statements. Such factors and risks include, among others:

risks that the Company may not carry out an offering by way of prospectus supplement to the

Base Shelf Prospectus; uncertainty and variation in the estimation of mineral resources; risks

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related to exploration, development, and operation activities; exploration and development of the

Moss Gold Project will not be undertaken as anticipated; the Company may require additional

financing from time to time in order to continue its operations which may not be available when

needed or on acceptable terms and conditions acceptable; the economic performance of the

deposit may not be consistent with management’s expectations; the Company’s exploration work

may not deliver the results expected; the fluctuating price of gold; unknown liabilities in connection

with acquisitions; compliance with extensive government regulation; delays in obtaining or failure

to obtain governmental permits, or non-compliance with permits; environmental and other

regulatory requirements; domestic and foreign laws and regulations could adversely affect the

Company’s business and results of operations; risks related to natural disasters, terrorist acts,

health crises, and other disruptions and dislocations; global financial conditions; uninsured risks;

climate change risks; competition from other companies and individuals; conflicts of interest; risks

related to compliance with anti-corruption laws; the Company’s limited operating history;

intervention by non-governmental organizations; outside contractor risks; the stock markets have

experienced volatility that often has been unrelated to the performance of companies and these

fluctuations may adversely affect the price of the Company’s securities, regardless of its operating

performance; and other risks associated with executing the Company’s objectives and strategies

as well as those risk factors discussed in the Company’s continuous disclosure documents filed

under the Company’s SEDAR+ profile at www.sedarplus.ca.

The forward-looking information in this news release is based on management’s reasonable

expectations and assumptions as of the date of this news release. Certain material assumptions

regarding such forward-looking statements were made, including without limitation, assumptions

regarding: the future price of gold; anticipated costs and the Company’s ability to fund its

programs; the Company’s ability to carry on exploration, development and mining activities; prices

for energy inputs, labour, materials, supplies and services; the timing and results of drilling

programs; mineral resource estimates and the assumptions on which they are based; the

discovery of mineral resources and mineral reserves on the Company’s mineral properties; the

timely receipt of required approvals and permits; the costs of operating and exploration

expenditures; the Company’s ability to operate in a safe, efficient, and effective manner; the

Company’s ability to obtain financing as and when required and on reasonable terms; that the

Company’s activities will be in accordance with the Company’s public statements and stated

goals; the Company will carry out an offering by way of prospectus supplement to the Base Shelf

Prospectus; that the Company’s exploration work will deliver the results expected; and that there

will be no material adverse change or disruptions affecting the Company or its properties.

The forward-looking information contained in this news release represents the expectations of the

Company as of the date of this news release and, accordingly, is subject to change after such

date. There can be no assurances that such statements will prove to be accurate and actual

results and future events could differ materially from those anticipated in such statements.

Readers should not place undue importance on forward-looking information and should not rely

upon this information as of any other date. The Company undertakes no obligation to update

these forward-looking statements in the event that management’s beliefs, estimates or opinions,

or other factors, should change.