 ST HELIER, Jersey, June 30, 2021 GLOBE NEWSWIRE -- Caledonia Mining Corporation Plc Caledonia or the Company NYSE AMERICAN: CMCL; AIM: CMCL announces that it received notification on June 28, 2021 from BlackRock, Inc. that it crossed a particular threshold for notification of its holdings in the Company on June 25, 2021. 