<div>Calibre Mining Added to the S&P/TSX Composite Index</div>

Calibre Mining Added to the S&P/TSX Composite Index

VANCOUVER, British Columbia, June 24, 2024 (GLOBE NEWSWIRE) — Calibre Mining Corp. (TSX: CXB; OTCQX: CXBMF) (“Calibre” or the “Company”) is pleased to announce that its common shares will be added to the S&P/TSX Composite Index effective at the open of trading on the Toronto Stock Exchange (the “TSX”) on June 24, 2024.

Darren Hall, President and Chief Executive Officer of Calibre, stated: “Our addition to the benchmark S&P/TSX Composite Index is another proud milestone for Calibre and reflects the significant value we are creating for shareholders as we successfully grow the Company. We look forward to the increased exposure, broader range of potential investors, enhanced liquidity and trading flexibility that inclusion in the S&P/TSX Composite Index can provide as we execute on our strategy to continue to drive long-term value for our shareholders.”

About S&P/TSX Composite Index
The S&P/TSX Composite Index is the headline index for the Canadian equity market, the broadest in the S&P/TSX family and is the basis for multiple sub-indices, including the S&P/TSX Global Mining Index. The S&P/TSX Composite Index includes the largest and most liquid companies on the Toronto Stock Exchange. Inclusion in the S&P/TSX Composite Index can potentially broaden participation in a Company’s investor base by enabling investment from index funds and similar investment vehicles.

About Calibre
Calibre is a Canadian-listed, Americas focused, growing mid-tier gold producer with a strong pipeline of development and exploration opportunities across Newfoundland & Labrador in Canada, Nevada and Washington in the USA, and Nicaragua. Calibre is focused on delivering sustainable value for shareholders, local communities and all stakeholders through responsible operations and a disciplined approach to growth. With a strong balance sheet, a proven management team, strong operating cash flow, accretive development projects and district-scale exploration opportunities, Calibre will unlock significant value.

ON BEHALF OF THE BOARD

“Darren Hall”

Darren Hall, President & Chief Executive Officer

For further information, please contact:

Ryan King
SVP Corporate Development & IR
T: 604.628.1012
E: calibre@calibremining.com
W: www.calibremining.com

Calibre’s head office is located at Suite 1560, 200 Burrard St., Vancouver, British Columbia, V6C 3L6.

X / Facebook / LinkedIn / YouTube

The Toronto Stock Exchange has neither reviewed nor accepts responsibility for the adequacy or accuracy of this news release.

Cautionary Note 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 securities legislation, including statements regarding the plans, intentions, beliefs and current expectations of Calibre with respect to future business activities and operating performance. All statements in this news release that address events or developments that Calibre expects to occur in the future are forward-looking statements. Forward-looking statements are statements that are not historical facts and are often identified by words such as “expect”, “plan”, “anticipate”, “project”, “target”, “potential”, “schedule”, “forecast”, “budget”, “estimate”, “intend” or “believe” and similar expressions or their negative connotations, or that events or conditions “will”, “would”, “may”, “could”, “should” or “might” occur. For a listing of risk factors applicable to the Company, please refer to Calibre’s annual information form for the year ended December 31, 2023, and its management discussion and analysis for the year ended December 31, 2023, all available on the Company’s SEDAR+ profile at www.sedarplus.ca. This list is not exhaustive of the factors that may affect Calibre’s forward-looking statements such as potential sanctions implemented as a result of the United States Executive Order 13851 dated October 24, 2022.

Calibre’s forward-looking statements are based on the applicable assumptions and factors management considers reasonable as of the date hereof, based on the information available to management of Calibre at such time. Calibre does not assume any obligation to update forward-looking statements if circumstances or management’s beliefs, expectations or opinions should change other than as required by applicable securities laws. There can be no assurance that forward-looking statements will prove to be accurate, and actual results, performance or achievements could differ materially from those expressed in, or implied by, these forward-looking statements. Accordingly, undue reliance should not be placed on forward-looking statements.

Disclaimer & Cookie Notice

Welcome to GOLDEA services for Professionals

Before you continue, please confirm the following:

Professional advisers only

I am a professional adviser and would like to visit the GOLDEA CAPITAL for Professionals website.

Cookie Notice

We use cookies to improve your experience on our website

Information we collect about your use of Goldea Capital website

Goldea Capital website collects personal data about visitors to its website.

When someone visits our websites, we use a third party service, Google Analytics, to collect standard internet log information (such as IP address and type of browser they’re using) and details of visitor behavior patterns. We do this to allow us to keep track of the number of visitors to the various parts of the sites and understand how our website is used. We do not make any attempt to find out the identities or nature of those visiting our websites. We won’t share your information with any other organizations for marketing, market research or commercial purposes and we don’t pass on your details to other websites.

Use of cookies
Cookies are small text files that are placed on your computer or other device by websites that you visit. They are widely used to make websites work, or work more efficiently, as well as to provide information to the owners of the site.