Exhibit 99.4
CERTIFICATE of QUALIFIED PERSON – D v Heerden
I, Daniel (Daan) van Heerden, do hereby certify that:-
| 1. | I am a Director of Minxcon (Pty) Ltd |
Suite 5, Coldstream Office Park,
2 Coldstream Street,
Little Falls, Roodepoort, South Africa
| 2. | I graduated with a B Eng (Mining) degree from the University of Pretoria in 1985 and an MCom (Business Administration) degree from the Rand Afrikaans University in 1993. In addition, I obtained diplomas in Data Metrics from the University of South Africa and Advanced Development Programme from London Business School in 1989 and 1995, respectively. In 1989 I was awarded with a Mine Managers Certificate from the Department of Mineral and Energy Affairs. |
| 3. | I have worked as a Mining Engineer for more than 30 years with my specialisation lying within Mineral Reserve and mine management. I have completed a number of Mineral Reserve estimations and mine plans pertaining to various commodities, including gold, using approaches described by the National Instrument 43-101 (Standards of Disclosure for Mineral Projects), Form 43-101F1 and the Companion Policy Document 43-101CP (“NI 43-101”). |
| 4. | I am affiliated with the following professional associations, which meet all the attributes of a Professional Association or a Self-Regulatory Professional Association, as applicable (as those terms are defined in NI 43-101):- |
| Class | Professional Society | Year of Registration |
| Professional Engineer | Engineering Council of South Africa (Pr.Eng. Reg. No. 20050318) | 2005 |
| Member | Association of Mine Managers of SA | 1989 |
| Fellow | South African Institute of Mining and Metallurgy (FSAIMM Reg. No. 37309) | 1985 |
| 5. | I am responsible Items 1-6, 13, 15-18, 20-21, 23-27 and the technical report titled “NI 43-101 Technical Report on the Blanket Gold Mine, Zimbabwe” prepared for Caledonia Mining Corporation Plc with an effective date of 1 January 2020 (“the Report”). |
| 6. | I have read the definition of “Qualified Person” set out in NI 43-101 and certify that by reason of my education, affiliation with professional associations and past relevant work experience, I fulfil the requirements to be a Qualified Person for the purposes of the Report. |
| 7. | I have read NI 43-101 and the Report has been prepared in compliance with it. |
| 8. | As of the effective date, to the best of my knowledge, information and belief, the Report contains all scientific and technical information required to be disclosed to make the Report not misleading. |
| 9. | I am independent of Caledonia Mining Corporation Plc as such term is defined in Section 1.5 of NI 43-101. My compensation, employment or contractual relationship with the Commissioning Entity is not contingent on any aspect of the Report. |
| 10. | I have previously acted as Qualified Person for the complete sign-off of the report titled “A Technical Report on the Blanket Mine in the Gwanda Area, Zimbabwe”, prepared for Caledonia Mining Corporation with an effective date of 9 July 2015. I also independently reviewed the report titled “National Instrument 43-101 Technical Report on the Blanket Mine, Gwanda Area, Zimbabwe (Updated February 2018)” of 13 February 2018 by Caledonia Mining Corporation. |
| 11. | I undertook a personal inspection of the property on 22-24 October 2014. A site visit for compilation of this Report was not possible due to COVID-19 induced travel restrictions. |
Signed at Little Falls, Roodepoort on 17 May 2021.
D v HEERDEN B Eng (Min.), MCom (Bus. Admin.), MMC Pr.Eng., FSAIMM, AMMSA DIRECTOR, MINXCON |
