Vancouver, B.C. – April 18, 2023: Calibre Mining Corp. (TSX: CXB; OTCQX: CXBMF) (the "Company" or "Calibre") is
pleased to announce that mining commenced at its 100% owned, new high-grade Eastern Borosi open pit mine
operation.
Darren Hall, President and Chief Executive Officer of Calibre, stated: “Mining from the Guapinol open pit at Eastern
Borosi commenced on schedule and marks another significant milestone in Calibre’s efforts to deliver on
expectations and organically grow gold production. With Eastern Borosi open pit reserves at Guapinol of 6.8 g/t gold,
we remain on track to deliver consolidated production of 250,000 – 275,000 ounces in 2023, a 20% increase over
2022. After inclusion of this additional high-grade ore, over one million tonnes of surplus processing capacity
remains at our Libertad mill, demonstrating the potential for additional future growth.
“Our success in developing and mining at Eastern Borosi is due, in large part, to our positive stakeholder engagement
and focus on sustainability, contributing to tangible improvements in the quality of life of our host communities in
the region. To date, 43% of the population around our Eastern Borosi operation has benefited directly from
vocational training initiatives, procurement opportunities or employment.
“As part of our 2023 exploration program, Calibre has two rigs drilling within the 176 km2 Eastern Borosi land
package, which hosts numerous low sulphidation gold-silver vein deposits and targets and strong potential for discovery of new zones and expanded resources.”

ON BEHALF OF THE BOARD
"Darren Hall"
Darren Hall, President, and Chief Executive Officer
For further information, please contact:
Ryan King
Senior Vice President, Corporate Development & IR