EXHIBIT 99.1 Caledonia Mining Corporation Plc Publication of Annual Report on Form 20-F exhibiting Technical Report Summaries ST HELIER, Jersey, May 17, 2022 (GLOBE NEWSWIRE) -- Caledonia Mining Corporation Plc ("Caledonia" or the "Company") (NYSE AMERICAN: CMCL; AIM: CMCL; VFEX: CMCL) announces that it is today filing with the U.S. Securities and Exchange Commission (the "SEC") on EDGAR the Company's Annual Report on Form 20-F for the fiscal year ended December 31, 2021 (the "Annual Report"). The Annual Re ...