Masimba Nyamhunga
(General Manager)

Bsc Engineering Hons (Metallurgy) UZ, Executive MBA (NUST)

Masimba joined the business on 1 February 2008 as Plant Superintendent – Dense Medium Separation (DMS). He rose through the mill till he was then appointed General Manager – RZM Murowa.

Brian Ward
(Group Head of Security)

Diploma from UNISA (RSA) Security Management London school of business.(UK), Gordon Institute of Business Science(SA) Duke university North Carolina (USA)

Brian joined Murowa Diamonds on 1 January 2004 and was a member of the project team that started Murowa, and was subsequently given the entire Group Security portfolio for RioZim Group in 2017. Brian has 30 years’ experience in the precious mineral security profession with De Beers, Rio Tinto and now RioZim.


BAcc (Hons) UZ, CPA

Tafadzwa joined RZM Murowa on 1 September 2008. He has performed in a number of different roles in Finance, Site Administration and Planning. In January 2018 he was appointed Financial Controller responsible for Finance, Procurement, Sales and Marketing. In September 2018, he was appointed Finance Manager with the same responsibilities. Tafadzwa served articles with Deloitte and is a member of the Chartered Professional Accountants (Canada).

Olivia Dzawo

Olivia Dzawo
(SENIOR Manager: HSE & Projects)

BSc Chemistry (Honours) UZ, MBA (MSU)

Olivia joined RZM Murowa on 1 June 2010 as Manager – Health, Safety & Environment. She was assigned to head projects in December 2015 as Manager Projects. In December 2017, She was then appointed Manager HSE & Projects.

Islam Chipango
(VICE PRESIDENT: Human Resources & Administration)

Executive MBA(MSU); BSc.Hons. Psychology(UZ)

Islam joined RZM Murowa on the 1st of May 2009 as Human Resources Superintendent. He was then promoted in March 2011 to become the inaugural substantive Human Resources Manager. His role has since evolved over time to include not only managing Human Resources but also Communications & External Relations; Information Systems & Technology and Aviation. Prior to joining Murowa Islam worked in Human Resources for Turnall Fibre Cement, Border Timbers Limited, Delta Beverages and Zimplats.