Mr. Darren Hall reports

LEADING INDEPENDENT PROXY ADVISORY FIRMS ISS AND GLASS LEWIS RECOMMEND CALIBRE MINING SECURITYHOLDERS VOTE FOR THE PROPOSED ARRANGEMENT WITH EQUINOX GOLD

Both Institutional Shareholder Services Inc. (ISS) and Glass Lewis & Co., two leading independent proxy advisory firms, have recommended that Calibre Mining Corp. securityholders vote for the resolution approving the proposed business combination between Calibre and Equinox Gold Corp. at the coming special meeting of securityholders scheduled for Thursday, May 1, 2025.

The board of directors of Calibre unanimously recommends that securityholders vote for the arrangement resolution.

Independent proxy advisory firm recommendations

Following the announcement of the amended terms for the proposed merger between Calibre and Equinox (see news release dated April 23, 2025), Glass Lewis has updated its recommendation. Glass Lewis now recommends that Calibre securityholders vote for the arrangement resolution, noting that the improved exchange ratio aligns with broader market expectations and offers greater downside protection while preserving the long-term upside potential of the combined company.

Your vote is important -- please vote today

The proxy voting deadline is 10 a.m. Vancouver time on Tuesday, April 29, 2025.

Meeting details

The meeting will be held on Thursday, May 1, 2025, at 10 a.m. Vancouver time, at the offices of Cassels Brock & Blackwell LLP, Suite 2200, RBC Place, 885 West Georgia St., Vancouver, B.C. For complete details and access to all relevant documents related to the meeting, please visit the Calibre Mining website.

Securityholder questions and voting assistance

Securityholders who have previously voted against the arrangement resolution and who wish to change their votes can simply revote in favour. For further assistance, securityholders may contact the company's proxy solicitation agent, Laurel Hill Advisory Group.

Toll-free:  1-877-452-7184 (for securityholders in North America)

International:  1-416-304-0211 (for securityholders outside Canada and the United States)

By e-mail:  assistance@laurelhill.com

About Calibre Mining Corp.

Calibre is a Canadian-listed, Americas-focused, growing mid-tier gold producer with a strong pipeline of development and exploration opportunities across Newfoundland and Labrador in Canada, Nevada and Washington in the United States, and Nicaragua. Calibre is focused on delivering sustainable value for securityholders, 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.

We seek Safe Harbor.