Michael Kwadwo Antwi
Tarkwa
Summary
I am seeking for a challenging career that develops self-motivated attitudes towards a diverse and multi-tasking operation. Well-organized and certificated maintenance engineer with over 17 years of service which includes 10 years of supervisory and management role for both underground and surface operations. Experience in fast-paced and challenging operational environments. Strategic and hardworking professional capable of working with little to no supervision. The safe way is the only way in achieving such a milestone.
Overview
17
17
years of professional experience
3
3
Certification
Work History
Regional Heavy Mining Equipment (HME) Specialist
Gold fields Ghana Tarkwa mine
09.2023 - Current
- Develop and integrate standard HME practices.
- HSE, Life Cycle Cost for equipment and components, production KPIs for contractor miners
- Design and set up industry standard HME workshops for mining contractors.
- Develop and review SOPs for the HME dept.
- Conduct monthly equipment performance review with mining contractors.
CIL Crushing and Milling Circuit Plant Engineer (Unit Manager)
Goldfields Ghana Tarkwa mine
Tarkwa
06.2020 - 09.2023
- Conduct Daily tools box meetings and weekly shop floor meetings with the entire processing plant workforce to discuss safety which happens to be the only way (at total of 170 workmen).
- The Maintenance of the Two Primary Crushing plants (a Metso MKII 50/64 and MKII 54/75 Gyratory Crushers)
- Conveyor belt structures and recirculating plants, Engineering Maintenance and Planning activities, Salvage yard management, Tailings Storage Facilities (decant pump stations and under drains), The maintenance activities at the Reagent Plants, All Clarifier setups, Water Treatment Plants, Pumps maintenance at the various dams, Assay Laboratory (burners, compressors, and pressure vessels), Ensuring adequate stock levels of all critical spares at the Mines General Stores, Crushing Plant area & Lay down area.
- The management of Motor Control Center (MCC)and The Maintenance of all Engineering Workshops, Surface Infrastructure, and all plant structural maintenance (Asset Integrity).
- Managed and planned the expenditure for each month to conform to the planned monthly budget of annual $7.5 million expenditure with an average monthly spend of $650K.
- Organize skill base training for all artisans and their respective supervisors (refresher and upgrade training), Conduct weekly meetings with supply chain and stores to get an up-to-date sock and inventory levels for spares.
- Primary, secondary, and Tertiary crushing circuit
- Electrical Reticulation In your area of responsibility (High and Low Tension)
- Drove operational improvements which resulted in savings and improved profit margins.
- Collaborated with team members to achieve target results.
- Recently led the team to install and commission a Mesto 50/60 Superior Gyratory MKIII Crusher (the first of its kind).
Unit Manager Mine Maintenance (Mining Contract)
Goldfields Ghana Tarkwa mine
03.2018 - 06.2020
- Aligned the mining contractors to GFGFL standard maintenance practices to give the best of performance to meet operations demand.
- Aligning GFGFL safety standards i.e. SOPs, PTOs and risk assessment with the contractor maintenance team. Gives technical advice to the contractor management in the acquisition of new equipment in aligning the knowledge base of the skilled labor.
Unit Manager Mine Maintenance (Drill Rigs)
Goldfields Ghana Tarkwa mine
11.2012 - 04.2018
- Supervised and managed the maintenance on all Heavy Mining Equipment i.e., Sandvik and Epiroc Drills. Planning the component changeout and rebuilding, Mid-life services etc.
- Cost control, Inventory control with stores and procurement. Keeping track of machines performance and working to meet operations demand, conduct on the job risk analysis and meet the GFGFL safety standards. With the current trend of technology, I form a lead base for the Innovation and technology i.e., optimizing automation. Gives technical advice to management in the acquisition of new equipment in aligning the knowledge base of the skilled labor. Working at Zero Harm.
- Proved successful working within tight deadlines and fast-paced atmosphere, Developed and implemented performance improvement strategies and plans to promote continuous improvement.
- Developing base training requirement for the mine maintenance staff and consultation with the various OEMs (Sandvik, and Epiroc).
- Used coordination and planning skills to achieve results according to schedule.
- Setup OEM meetings to bridge knowledge gap with respect to improvements and addressing issues which can be taken up during manufacturing.
Superintendent (Mobile Maintenance Underground)
AngloGold Ashanti –Obuasi Mine
08.2010 - 11.2012
- Identified issues, analyzed information, and provided solutions to problems.
- Managed all maintenance activities with respect to the maintenance on the LHD's (Sandvik and Epiroc) and underground Drills on mean time taken to rectify a breakdown. Gave the hands-on approach training to shift supervisors. Budget control for cost management. Effect adherence to safety.
- Managed and supervised the rebuilding of major components (transmissions, breaks and torque convertors).
- Developed and implemented component changeout plan for all mobile mining equipment.
- Designed and set up underground maintenance workshops with safety as a great factor.
Product Support Specialist
Sandvik mining and construction
Accra
08.2008 - 08.2010
- Worked as a product support specialist at MCM first quantum mine at Mauritania where we worked on the D45KS and the pantera 1500 rigs. Coordinated spares for mother company and pre-planned component change out as support service contractor for Sandvik. Commissioned and gave technical support for Sandvik drills and LHDs at Morocco, Tanzania, Zambia, and Senegal.
- Documented customer interactions to aid my troubleshooting in customer relationship.
- Analyzed and applied technical information from interviews with engineers, operators, and service technicians.
- Captured client feedback and recommended and advocated for product enhancements based on personal expertise and evaluation of customer needs.
- Executed product solution demonstrations with internal and external users during new releases and troubleshooting calls.
Supervisor (Mobile Maintenance Underground)
AngloGold Ashanti –Obuasi Mine
05.2006 - 08.2008
- Worked on all underground trackless equipment types I.e. LHD's and underground drills. Performed maintenance work on the various machines, acted as master mechanic for 6 months. Where I worked on the assembling of LHD's and underground drill rigs.
Education
Associate of Applied Science - Mechanical Engineering
Kumasi Technical University
Kumasi12-2004
Bachelor of Science - Electrical Engineering
Kwame Nkrumah University of Science and Technology
Kumasi02-2026
Skills
- HME life cycle cost and equipment forecast specialist
- Hydraulic Troubleshooting
- Process plant Maintenance, Drills, Heavy Mining Equipment Maintenance special
- Reliability personel
- SAP user
- CANBUS and electronics expert
- CAT ET Diagnosis
- Equipment Programming
- Computer Hardware engineering
- Certificated assessor
- With both surface and underground exposure and experience
Accomplishments
1. Played the lead engineer in the successful changeout out of a worn Trunnion liner on a 14 megawatt Semi Autogenous Grind Mill in96hrs. (January 2026) for Gold Felids Ghana Limited.
2. Played the lead engineer in the installation a new Mesto Gyratory Crusher MKIII 50/65 in 72hrs for Gold felids Tarkwa mine
3. Played the lead engineer for the upgrade of tailings pump installations WIER minerals. upgrade from 10/12 to 12/14 to enable a higher pumping capacity at a desired head
Certification
- Engineering Managers Certificate of competency from the minerals commission of Ghana
- Certified Maintenance and Reliability Professional
- Leadership transformation journey (HAVARD SCHOOL OF BUSINESS)
- HR for non-HR managers (University of Ghana)
- Advance Hydraulics
- Basic Hydraulics
- Assessors training (South Africa)
- DP1500i (hydraulics, electrical/electronic and Can bus system) FINDLAND
- First aid certificate by AngloGold-Ashanti.
- Hazard identification certificate (safety)
- Hardware and software engineering.
- Training on pantera 1500 by Sandvik at Goldfields site Tarkwa.
Languages
English
Full Professional
Timeline
Regional Heavy Mining Equipment (HME) Specialist
Gold fields Ghana Tarkwa mine
09.2023 - Current
CIL Crushing and Milling Circuit Plant Engineer (Unit Manager)
Goldfields Ghana Tarkwa mine
06.2020 - 09.2023
Unit Manager Mine Maintenance (Mining Contract)
Goldfields Ghana Tarkwa mine
03.2018 - 06.2020
Unit Manager Mine Maintenance (Drill Rigs)
Goldfields Ghana Tarkwa mine
11.2012 - 04.2018
Superintendent (Mobile Maintenance Underground)
AngloGold Ashanti –Obuasi Mine
08.2010 - 11.2012
Product Support Specialist
Sandvik mining and construction
08.2008 - 08.2010
Supervisor (Mobile Maintenance Underground)
AngloGold Ashanti –Obuasi Mine
05.2006 - 08.2008
Bachelor of Science - Electrical Engineering
Kwame Nkrumah University of Science and Technology
Associate of Applied Science - Mechanical Engineering
Kumasi Technical University