6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

Form 6-K

Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 Of the Securities Exchange Act of 1934

For the month of April 2026 Commission File Number: 001-38164

CALEDONIA MINING CORPORATION PLC (Translation of registrant's name into English)

2 Mulcaster StreetSt Helier Jersey JE2 3NJ (Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒      Form 40-F ☐

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

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EXHIBIT INDEX

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Exhibit 99.1

Caledonia Mining Corporation Plc

(NYSE American, AIM and VFEX: CMCL)

Change of Chairman

St Helier, Jersey – April 30, 2026: Caledonia Mining Corporation Plc (“Caledonia” or “the Company”) announces that John Kelly has notified the board of directors of the Company (the “Board”) of his intention, as part of the Board’s succession plan, to step down as chairman of the Board (the “Chairman”) with effect from the end of the annual general meeting of the shareholders of the Company to be held on May 5, 2026 (the “AGM”).

The Board is pleased to announce that July Ndlovu, currently an independent non-executive director, has offered to become the new Chairman. His appointment as Chairman is subject to election by the Board immediately following the AGM in accordance with the annual Chairman election process. An announcement of the new Chairman will accompany the announcement of the results of the AGM.

Mr Kelly, who joined the Board in May 2012 and has served as Chairman for the past three years will, providing he is re-elected as a director of the Company by shareholders at the AGM, continue to serve on the Board as a non-executive director, thus providing continuity and the ongoing benefit of his experience and insight.

During his tenure as Chairman, Mr Kelly has guided the Board through a significant period of transition and change at Caledonia, providing stewardship over the continued operational delivery at Blanket Mine while supporting the advancement of the Company’s growth strategy.

Commenting on handing over the role of Chairman,John Kelly said:

“It has been a privilege to serve asChairman over the past three years, and to have supported the Company through a period of significant transition and change. Caledoniais well positioned for the future, underpinned by the strong performance of Blanket Mine and the progress being made towards Caledonia’snext phase of growth. I have no doubt that July as Chairman will enhance the prospects for our continued success. I look forwardto continuing to support the Board and management as a non-executive director and to working closely with the new Chairman.”

July Ndlovu commented:

“I am honoured to be considered for therole of Chairman at an important point in the Company’s development. The business has strong operating foundations and a compellinggrowth opportunity in the Bilboes project, which has the potential to take Caledonia into its next stage of growth.

“I would also like to thank John, onbehalf of the Board, for his leadership and guidance as Chairman. I am very pleased that he will continue to serve as a non-executivedirector, and I look forward to working closely with him, the Board and management team to help guide the Company through this next phaseand to deliver long-term value for shareholders.”

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Mark Learmonth, Chief Executive Officer, added:

“On behalf of the Board and managementteam, I would like to thank John for his contribution and counsel over many years, and particularly for his stewardship as Chairman overthe past three years during a period of change for the Company. His guidance and focus on governance and strategic progress have beeninvaluable, and I am glad that he intends to remain on the Board. I look forward to working closely with July once he is formally electedby the Board as Chairman as we continue to advance Caledonia’s strategy, including the development of the Bilboes project.”

For further information please contact:

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