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RGR.CN ·

Rio Grande Resources Uplists to OTCQB Venture Market in the United States

Listings & Exchange

Rio Grande Resources Uplists to OTCQB Venture Market in the

United States

VANCOUVER, BC / ACCESS Newswire / June 30, 2025 / Rio Grande Resources Ltd. (CSE: RGR)

(OTCQB: RGRLF) (“Rio Grande” or “RIO” the “Company”), an emerging North American gold and

silver exploration company, have had its common shares approved and uplisted to the OTCQB

Venture Market in the United States and commenced trading today, June 30 , 2025, under the same

ticker symbol RGRLF , without disruption. The Company’s shares will continue to trade on the

Canadian Securities Exchange (“CSE”) under the symbol RGR.

The OTCQB Venture Market is recognized by the US Securities and Exchange Commission as an

established public market providing public information for analysis and valuation of securities. It is

designed for developing and entrepreneurial companies in the U. S. and abroad, applying standards

that promote price transparency and facilitate public disclosure. To be eligible for OTCQB,

companies must be current in their financial reporting and undergo an annual verification and

management certification process, in cluding meeting a minimum bid price and other financial

conditions. These compliance and quality standards provide investors improved transparency for

making informed investment decisions and for determining the public market price when registering

securities for resale for international companies.

Jason Barnard, Chief Executive Officer of Rio Grande, comments: “Graduating. to. the. OTCQB.

represents.an.important.milestone.for.Rio.Grande.as.we.continue.to.execute.on.our.growth.strategy¡.

This. uplisting. enhances. our. visibility. with. U¡S¡. investors? . improves. liquidity? . and. reflects. our.

commitment.to.operating.with.a.high.standard.of.transparency.and.governance¡.We.believe.this.will.

further.support.our.efforts.to.build.long‗term.value.for.our.shareholders¡‹

Investors can find real -time quotes and market information for the Company on the OTC Markets

website at: https://www.otcmarkets.com/stock/RGRLF/profile.

Equity Grants

Rio Grande also announces that it has granted a total 946,587 Restricted Share Units (“ RSUs”),

collectively, (the “ Awards”), to certain directors, officers and consultants of the Company in

accordance with the Rio Grande’s Stock Incentive Plan (the “Plan”). The Plan’s goal is to create an

incentive compensation program that is aligned with the Company’s long-term objectives. The RSUs

are subject to vesting provisions with the exception of 75,000 RSUs that were granted fully vested in

association with the successful listing of Rio Grande Resources. All Awards are subject to a statutory

hold period of four months and one day and were granted in accordance with the policies of the

Canadian Securities Exchange.

About Rio Grande Resources

Rio Grande Resources (CSE:RGR) (OTCQB: RGRLF)is a burgeoning mineral exploration company

focused on unlocking the high -grade gold and silver potential within its 3,000 -acre drill -ready

property in the Black Range of Sierra County, New Mexico. The company holds 100% interest in the

Winston project group, which includes the 2 patented historic Ivanhoe & Emporia Claims, and Little

Granite mines, all known for their past production of high -grade precious metals. Rio Grande

Resources is led by a team of experien ced professionals with expertise in mineral exploration and

development, who are targeting large -scale precious metal discoveries within the property’s well -

documented low-sulfidation epithermal setting.

To view the company fact sheet and corporate presentation, please visit our website

at www.riogranderesources.ca.

Contact and Information

Company

Jason Barnard, President CEO and Director

(604) 767-6598

[email protected]

Investor Relations Contact

Lucas A. Zimmerman & Ian Scargill

MZ Group - MZ North America

(262) 357-2918

[email protected]

www.mzgroup.us

Follow us or contact us on social media

X: @RioGrandeRGR

LinkedIn: https://www.linkedin.com/company/rio-grande-resources-ltd/

Facebook: facebook.com/profile.php?id=61572800435230

Forward-Looking Statements

Except for the statements of historical fact contained herein, the information presented in this news

release and oral statements made from time to time by representatives of the Company are or may

constitute “forward -looking statements” as such term is us ed in applicable United States and

Canadian laws and including, without limitation, within the meaning of the Private Securities

Litigation Reform Act of 1995, for which the Company claims the protection of the safe harbor for

forward-looking statements. S uch forward -looking statements and forward -looking information

include, but are not limited to, the Company’s expectations with respect to the Private Placement;

and the use of proceeds under the Private Placement;. These statements relate to analyses and other

information that are based on forecasts of future results, estimates of amounts not yet determinable

and assumptions of management. Any other statements that express or involve discussions with

respect to predi ctions, expectations, beliefs, plans, pr ojections, objectives, assumptions or future

events or performance (often, but not always, using words or phrases such as “expects” or “does not

expect, ” “is expected, ” “anticipates” or “does not anticipate, ” “plans, ” “estimates” or “intends, ” or

stating that certain actions, events or results “may, ” “could, ” “would, ” “might” or “will” be taken,

occur or be achieved) are not statements of historical fact and should be viewed as forward-looking

statements. Such forward-looking statements involve known and unknown risks, uncertainties and

other factors which may cause the actual results, performance or achievements of the Company to

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

by such forward -looking statements. Such risks and other factors include, among others, the

availability of capital to fund programs and the resulting dilution caused by the raising of capital

through the sale of Units , continuity of agreements with third parties, risks and uncertainties

associated with the environment and delays in obtaining governmental approvals, permits or

financing. Although the Company has attempted to identify important factors that could cause

actual actions, events or results to differ materially from those described in forward- looking

statements, there may be other factors that cause actions, events or results not to be as anticipated,

estimated or intended. There can be no assurance that such statements will prove to be accurate as

actual results and f uture events could differ materially from those anticipated in such statements.

Although the Company believes that the expectations reflected in such forward-looking statements

are based upon reasonable assumptions, it can give no assurance that its expect ations will be

achieved. Forward-looking information is subject to certain risks, trends and uncertainties that could

cause actual results to differ materially from those projected. Many of these factors are beyond the

Company’s ability to control or predi ct. Important factors that may cause actual results to differ

materially and that could impact the Company and the statements contained in this news release

can be found in the Company’s filings on SEDAR+. The Company assumes no obligation to update or

supplement any forward-looking statements whether as a result of new information, future events or

otherwise. Accordingly, readers should not place undue reliance on forward- looking statements

contained in this news release and in any document referred to in this news release. This news

release shall not constitute an offer to sell or the solicitation of an offer to buy securities. Please refer

to the Company’s most recent filings under its profile on SEDAR+ at www.sedarplus.ca for further

information respecting the risks affecting the Company and its business.

The CSE has neither approved nor disapproved the contents of this news release and accepts no

responsibility for the adequacy or accuracy hereof.