Stephanus Rothner

Experienced mining and processing professional with 24 years of experience in the diamond-mining industry, supported by practical management and operational experience across diamond recovery and gold mining operations. Strong background in diamond recovery plants, DMS processing, X-ray/FlowSort recovery technology, plant operations, production, equipment, troubleshooting, commissioning and team leadership. Management experience also includes work at Dominico Majojo in Kenya, where I was involved in the engineering and construction of a 12 TPH crushing plant and CIP gold processing plant, took responsibility for commissioning the plant and subsequently managed the processing operation.

I later took over management of the open-pit mining operation. Combines hands-on technical knowledge with practical management and leadership experience. Experienced in coordinating people, production, engineering and operational activities while maintaining safety, production standards, equipment performance and operational continuity.

Seeking Mining

Manager, Processing Plant Manager, Plant Manager, Processing Superintendent, Recovery Manager, Operations Manager or Senior Mining/Processing Management opportunities.

Gold Mining & Processing Operations — Management / Engineering / Processing / Open-Pit Operations - DOMINICO MAJOJO - Kenya

• Held management responsibility during the construction and development of a gold processing operation at Dominico Majojo.
• Managed and coordinated engineering activities associated with the construction of a 12 TPH crushing plant and CIP gold processing plant.
• Was responsible for the commissioning of the processing plant and the transition from construction into operational production.
• Worked across engineering, processing and operational activities to ensure that the plant was prepared for production.
• After commissioning, took over management responsibility for the processing operation.
• Subsequently took over management of the open-pit mining operation, giving practical management experience across both processing and mining activities.
• Coordinated operational activities with a focus on production, equipment performance, personnel, safety and continuity of operations.
• Developed practical experience managing the relationship between mining operations, engineering, processing and production requirements.

Diamond Mining & Recovery — Operational, Technical, Supervisory and Management Responsibilities - DIAMOND MINING & RECOVERY

24 years' experience. Extensive career experience within diamond-mining and recovery environments, including operational, technical, supervisory and management responsibilities.

• Extensive practical experience in diamond recovery and processing operations.
• Strong understanding of diamond recovery processes and the factors affecting recovery performance.
• Experience working within DMS and diamond recovery plant environments.
• Practical knowledge of production-focused recovery operations.
• Experience supporting production continuity through troubleshooting, equipment intervention and operator support.
• Strong focus on safe operating practices, process discipline and production standards.
• Qualified in the operation and maintenance of Flow Sort X-Ray Diamond Recovery Machines.
• Practical experience with X-ray / XRT diamond recovery technology.
• Experience with FlowSort machine operation and setup.
• First-line maintenance and equipment fault identification.
• Experience applying X-ray sorter safety procedures and disciplined operating practices.
• Understanding of sorter operation and recovery performance.
• Practical operator support, training and mentoring.
• Practical experience with diamond recovery plant equipment.
• Experience identifying operational and equipment problems.
• Troubleshooting and supporting plant production continuity.
• Experience with cyclones and electrical components within processing-plant environments.
• Practical understanding of plant construction, equipment installation, commissioning and production requirements.

DMS Diamond-Processing Operation - Rio Lice - Kamaconde / Malange Area, Angola

Worked in Angola for almost one year on a DMS diamond-processing operation, gaining experience across the development and operational stages of the plant.

• Involved from the construction stage through to production.
• Worked with DMS plant infrastructure and processing equipment.
• Experience involving cyclones and electrical components.
• Participated in the transition from plant construction and installation into operational production.
• Developed valuable international experience working within an African diamond-mining environment.
• Practical understanding of the coordination required between engineering, plant equipment, production and recovery operations.

Leadership and Management Course (2017)

Supervisor Course (2010)