Mr. Darren Hall reports

CALIBRE COMMENCES ORE DELIVERIES FROM ITS EASTERN BOROSI OPEN PIT MINE TO THE LIBERTAD MILL

Following the commencement of mining at Calibre Mining Corp.'s 100-per-cent-owned Eastern Borosi open-pit mine in early April, ore deliveries to the Libertad processing plant commenced in May.

Darren Hall, president and chief executive officer of Calibre, stated: "I am very pleased with the progress made at the Eastern Borosi mine complex, successfully transforming the exploration district to a production centre. In April, we began mining from the high-grade Guapinol open pit with a reserve grade of 6.8 grams per tonne gold and ore deliveries to the Libertad mill commenced mid-May. The development of Eastern Borosi marks another significant milestone for the company which will positively contribute to our grade-driven production growth as we reaffirm our 2023 guidance of 250,000 to 275,0000 ounces."

About Calibre Mining Corp.

Calibre Mining is a Canadian-listed, Americas focused, growing mid-tier gold producer with a strong pipeline of development and exploration opportunities across Nevada and Washington in the United States and in 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.

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