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Any failure to comply with this restriction may constitute a violation of U.S. securities laws.

Corporate Updates

Cascadero Copper Corporation

#395, 901 West Third Street, North Vancouver, B.C. V7P 3P9

Phone: 604 985 3327

Not for distribution to U.S. Newswire Services or for dissemination in the United States.

Any failure to comply with this restriction may constitute a violation of U.S. securities laws.

March 17, 2023 (TSXV:CCD)

CASCADERO COPPER CORPORATION ANNOUNCES

COMMENCEMENT OF CESIUM EXTRACTION PROGRAM ON TARON MINERAL SAMPLES

AND INTENTION TO EXTEND WARRANT EXPIRY DATE

North Vancouver, BC, Canada, March17, 2023 – Cascadero Copper Corporation (“ Cascadero”

or the “Company”) (TSXV:CCD) announces that it has commenced a laboratory testing program

at the University of British Columbia on mineral samples from the Taron (Argentina) deposit.

The Cascadero Copper Corporation Cesium Extraction Process (United States Patent

10,738,370, August 11, 2020) uses acid extraction to dissolve cesium from the Taron

mineralization. Cesium is then precipitated from solution as a cesium alum with the addition of

aluminum sulfate. The cesium alum is then recrystallized and purified to form a cesium hydroxide

solution. Cesium hydroxide is a pre-cursor for manufacture of cesium salts, including cesium

formate for drilling fluid (for oil and gas drilling).

The objective of the testing program is to investigate acid leaching of cesium with the goal of

minimizing the acid usage per unit of cesium extraction and recovering dissolved cesium from

solution. The testing will last three months. The test results from this program will be used to

complete an engineering scoping study on the recovery of cesium from the Taron mineralization.

The Company also announces that it intends, subject to the acceptance of the TSX Venture

Exchange, to extend the expiry date of the warrants that were issued on April 1, 2021 to purchase

a total of 14,285,714 common shares of the Company at an exercise price of $0.05 per share (the

“Warrants”) from 24 months from the date of issuance to 48 months from the date of issuance.

Once the expiry date extension is accepted by the TSX Venture Exchange, the new expiry date

for the Warrants will be April 1, 2025.

About Cascadero Copper Corporation

Cascadero Copper Corporation is focused on the exploration and development of its properties

located in Salta, Argentina. The Company currently has a joint venture with Golden Minerals on

its Sarita Este license. In addition, the Company has newly appointed technical advisors to work

with the board and management to provide advice on exploration and development of the

Cascadero mineral properties in Argentina and on other future properties of merit. The Cascadero

research and development team that was instrumental in developing the patent-pending mineral

processing flowsheet on Taron mineral samples are expected to continue their work under the

guidance of the Board.

Cascadero Copper Corporation

#395, 901 West Third Street, North Vancouver, B.C. V7P 3P9

Phone: 604 985 3327

All material information on the Company may be found on its website at www.cascadero.com and

on SEDAR at www.sedar.com.

For further information, please contact:

Dr. George Gale

Interim CEO

Tel: 604-985-3327

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.

Cautionary Statement Regarding “Forward-Looking” Information.

This news release includes certain “forward-looking information” and “forward-looking statements”

(collectively “forward-looking statements”) within the meaning of applicable Canadian and United

States securities legislation including the United States Private Securities Litigation Reform Act of

1995. All statements, other than statements of historical fact, included herein, without limitation,

statements relating the future operating or financial performance of the Company, are forward-

looking statements.

Forward-looking statements are frequently, but not always, identified by words such as “expects”,

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

statements that events, conditions, or results “will”, “may”, “could”, or “should” occur or be

achieved. Forward-looking statements in this news release relate to the cesium extraction testing

program and its test results, the use of such test results including completing an engineering

scoping study, and the extension of the Warrants expiry date. Actual future results may differ

materially. There can be no assurance that such statements will prove to be accurate, and actual

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

Forward-looking statements reflect the beliefs, opinions and projections on the date the statements

are made and are based upon a number of assumptions and estimates that, while considered

reasonable by the respective parties, are inherently subject to significant business, economic,

competitive, political and social uncertainties and contingencies. Many factors, both known and

unknown, could cause actual results, performance or achievements to be materially different from

the results, performance or achievements that are or may be expressed or implied by such forward-

looking statements and the parties have made assumptions and estimates based on or related to

many of these factors. Such factors include, without limitation, the risk that the testing program

may not proceed or fail, the use of any test results including an engineering scoping study may not

proceed as contemplated or at all, the warrant expiry extension may not be accepted by the TSX

Venture Exchange or the Company may not proceed with the extension. Readers should not place

undue reliance on the forward-looking statements and information contained in this news release

concerning these times. Except as required by law, the Company does not assume any obligation

to update the forward-looking statements of beliefs, opinions, projections, or other factors, should

they change.