 ST HELIER, Jersey, March 17, 2021 GLOBE NEWSWIRE -- Caledonia Mining Corporation Plc NYSE AMERICAN: CMCL; AIM: CMCL Caledonia or the Company notes that it is to be included in the MVIS Global Junior Gold Miners Index GDXJ Index for the first time following the GDXJ Indexs first quarter 2021 review. 