Our People
Our distinctive, futuristic and diverse culture forms the bedrock of our competitive edge
The dedication of our team has fostered a work culture and environment that retains exceptional talent as we strive to remain an employer of choice in the industry.
We’re proud that many of our team members have been with us on this journey from the start.
We firmly believe that teamwork makes the dream work!
The dedication of our team has fostered a work culture and environment that retains exceptional talent as we strive to remain an employer of choice in the industry.
We’re proud that many of our team members have been with us on this journey from the start.
We firmly believe that teamwork makes the dream work!
Directors
Frank Rovelli
Frank Rovelli, a Chartered Accountant since 1993, graduated from UPE with a B. Comm and earned his Honours at Wits University. His career began at Auto Industrial Foundry, followed by a significant move to Fawick, where he acquired equity. In 1998, he merged Fawick with Probe, leading to a fully integrated Industrial division within the Probe Group. By 2008, he had ascended to the position of CEO of the Probe Group.
Gert Roselt
Gert Roselt is an accomplished professional with a diverse educational background and significant leadership experience. He holds a Postgraduate Diploma in Business Administration from WITS University Online, Digital Transformation and Strategic Leadership from GIBS, a Bachelors in Business Management & Leadership, and a Financial Management for Non-Financial Managers Certificate. Gert is also a qualified Auto Electrician and holds an N3 Electrical Qualification. Professionally, Gert served as the CEO of IMT Kuruman Auto (Pty) Ltd., as COO & CEO of Probe IMT (Pty) Ltd., and is now CEO of The Probe Mining Holdings Group of companies.
Oliver Petersen
Oliver Petersen held various Associate and Executive roles in Banking, Corporate Finance and Private Equity. Prior to joining Thesele, he was a Senior Deal Executive at Capitalworks Private Equity, CEO of Brait’s Alternative Equity Partners, and COO of Circle Capital Ventures. He is also a former Secretary General of ABSIP.
Yolande Mahlangu
Yolande Mahlangu joined Thesele in November 2023. Prior to joining Thesele, she held Executive roles in private equity and investment holding companies such as Kagiso Tiso Holdings, Pan-African Private Equity and Yard Capital. She has served as a Board member of several companies.
Group HOD's
Gert Roselt
Group CEO
Gert Roselt is an accomplished professional with a diverse educational background and significant leadership experience. He holds a Postgraduate Diploma in Business Administration from WITS University Online, Digital Transformation and Strategic Leadership from GIBS, a Bachelors in Business Management & Leadership, and a Financial Management for Non-Financial Managers Certificate. Gert is also a qualified Auto Electrician and holds an N3 Electrical Qualification. Professionally, Gert served as the CEO of IMT Kuruman Auto (Pty) Ltd., as COO & CEO of Probe IMT (Pty) Ltd., and is now CEO of The Probe Mining Holdings Group of companies.
Bernard Tennant
Group COO
Bernard Tennant, a seasoned finance professional with a diverse career spanning over two decades. He started his career at KPMG in Durban, qualifying as a CA (SA), and gained international experience in London. He joined Protea Chemicals in 1998, managing three companies in the KZN region. In 2010, he relocated to Johannesburg to oversee five national business units and later headed the Polymer business for the group. Tennant has been serving as the Group COO of Probe IMT, managing the finances and operations of both local and foreign entities.
Pulane Radebe
Group Human Resources
Pulane Radebe holds a Postgraduate Diploma in Human Resources Management, Baccalaureus Technologiae in Human Resources Management, an advanced certificate in Labour Law, and is a certified OD Education Training and Development Practitioner. She is currently pursuing the SMDP Certificate with Stellenbosch. Radebe’s expertise spans in Strategic HR, Talent, Learning and Development. She has made significant contributions to the HR sector for 19 years, at Impala Platinum Limited, Nokeng Fluorspar mining industries and Probe IMT.
Leon Jordaan
Group Business Improvement Manager
Leon Jordaan currently serves as the Group Business Improvement Manager at PIMT. With seamlessly integrating productivity, efficiency, and effectiveness into the organization’s ethos, Leon’s role enables him to actualize his aspiration of making a meaningful impact on a daily basis.
Grace Shana
Group Financial Manager
Grace Shana, an accomplished finance professional with a diverse educational background. She is currently pursuing a Master’s degree in Finance and Investments. Her academic credentials include a BA (Hons) in Business Management, a BSc in Management & Entrepreneurial Studies, and a Senior Management Development Program. She also holds a Diploma in Management & Leadership from the Chartered Manager Institute (CMI). Professionally with 20 years of experience in different finance related roles, currently she serves as the Group Financial Manager at Probe IMT, leading a team of 20 aspiring finance professionals.
Anthony Marais
Group SHEQ
Anthony Marais holds a NOSA Higher National Diploma, Advanced Health & Safety certification, and a Safety Management & Training Course (SAMTRAC) qualification. Since July 2017, Anthony has been instrumental as the Group HSE Manager at Probe Integrated Mining Technologies. His earlier experiences include impactful tenures as Project HSE Manager at both Stefanutti Stocks and ELB Engineering, where he held health, safety, and environmental management projects within the construction industry. Anthony has also played key roles at Aveng Grinaker-LTA, Rand Sand Blasting, AST Overseas, and Grinaker-LTA Process Engineering and Grinaker-LTA Oil & Gas Division.
Wesley Lynn
Group Sales Manager
Wesley Dean Lynn began his career with Probe Mining Holdings in 2011 and has held various positions within the company, including Key Account Manager, New Business Development Manager, Sales Manager, Business Unit Manager, and most recently, Group Sales Manager. His educational qualifications include a certificate in Operations Management from the University of Stellenbosch, and he is recently completed a BBA through Regenesys Business School. Lynn is also an alumnus of Pretoria Boys High School in Gauteng.