Calibre Mining Corp.: Calibre Announces Continued Success Expanding Resources and Identifying New Zones at the Limon Complex VANCOUVER, British Columbia, May 11, 2021 (GLOBE NEWSWIRE) -- Calibre Mining Corp. (TSX: CXB; OTCQX: CXBMF) (the "Company" or "Calibre") is pleased to provide an update in respect of the Company's 2021 drilling program, highlighting both exploration and infill holes at high-grade underground targets within the Company's producing Limon Mine Complex. Resource Expansion Highlights 5.50 g/t Au over 7.1 metres ETW from 285.5 metres (LIM-21-4549) 13.35 g/t Au over 3.2 metres ETW from 86.9 metres in new vein structure (LIM-21-4537) Panteon & Santa Pancha 1 Underground 13.42 g/t Au over 2.0 metres ETW from 304.8 metres (in the Panteon hanging wall vein) and 3.01 g/t Au over 3.5 metres ETW from 347.3 metres (in the Panteon main vein) (LIM-20-4540)