Management Team


ANTHONY DUFFYWith over 30 years’ experience in the Mining & Construction Equipment industries, Anthony brings a diverse range of technical skills and management expertise to the Harlequin team. His experience in Sales & Marketing, Business Development, International Business, Project management and other senior management positions, has been instrumental in the growth and expansion of the companies he has worked for.

Organisations include OEM’s (Hitachi, Komatsu & Liebherr), mining, civil earthmoving and construction companies located throughout the United Kingdom, Europe, the Middle East, New Zealand, Papua New Guinea, South America, Hong Kong and West Africa.

Anthony has worked in Ghana for over 10 years and started with Liebherr Mining Ltd supporting the Goldfields Mining Project in Tarkwa. As Project Manager, he successfully managed the MARC (contract) by implementing new systems and processes within a very tight schedule and budget. He was soon promoted to Operations Manager and two years later, was offered the position of International Business Manager based at their head office in France developing their key projects in Indonesia, South America and the UAE.

After resigning from Liebherr, he returned to Ghana to work for another OEM dealer, Panafrican Equipment Ltd to set up a new business unit for their Ghana and West African operations.

Being driven and highly motivated, Anthony looks forward to developing Harlequins vision of being the preferred provider for engineering services across a range of industries in West Africa whilst advocating the safety and wellbeing and strategies of the company.




Leyanis Dube-GatiLeyanis Dube-Gati, an M.Sc. Industrial Engineering graduate from the University of Camilo Genfuegos, in Cuba, has in excess of 20 years’ experience in the engineering field.  With a career that spans two continents, Leyanis started in Cuba where she worked in a number of reputable organizations and directed all her efforts to gain knowledge and experience.  Diligence and focus rewarded Leyanis with an opportunity to relocate to Ghana in 1996 where she joined GRATIS.

In 1998 Leyanis joined the Harlequin team and excelled, joining the management team within her first year.  Leyanis achieved Engineering Director status in 2009.  Through her focused efforts, Harlequin achieved the sought-after Quality Management System, ISO 9001:2008 accreditation with DNV in 2010 and her commitment also achieved the testing of the CTLF for a reputed international oil and gas company.

A dedicated and highly skilled engineer, Leyanis continues to lead the Harlequin engineering team through guidance, unwavering commitment and by setting a commendable example.




Andrew Acquah Oppan holds a Commonwealth Executive Master of Business Administration from the Kwame Nkrumah University of Science and Technology.  Prior to pursuing the above, Andrew obtained a Bachelor of Science Degree in Administration (Human Resource Management Option) from the Central University College, Accra–Ghana, in 2003.

Having worked organizations such as Ghana Ports and Harbours Authority and the Ghana Civil Aviation Authority among others, Andrew joins the Harlequin with over thirteen (13) years’ experience from the Gold Mining Industry, where he rose through the ranks to the position of Head of Human Resources.

As an active member of the Institute of Human Resource Management Practitioners (IHRMP), for a considerable number of years, Andrew has participated in numerous international and local conferences and seminars in the field of Human Resource (HR) and brings on board his vast professional and managerial experience in the field of H. R. Management and general administration.

Andrew heads the Human Resource/Administration Department of Harlequin, ensuring that an efficient human resource infrastructure is built with an increasing employee commitment and capabilities in strategy execution to creating a renewable organisation.




Kwame Oduro-Yeboah started his career in the UK after first obtaining his B.Eng. (Mechanical Engineering) from Brunel University (UK) and then graduating in M.Sc. Energy Management and Conservation from Middlesex University.  He joined Calor Gas (UK) Ltd as a Graduate Engineer and worked his way up to Plant and Customer Engineering Manager.  During a 10-year tenure, managing the largest through-put LPG Filling Plant in the UK, a top tier Control of Major Accidents and Hazards (COMAH) site, Kwame gained invaluable knowledge and experience.

With 15 years’ experience in the UK, Kwame relocated to Ghana and joined the Harlequin team in 2010, working his way up to QHSE Manager.  The extensive engineering, quality and HSE experience that he gained in the UK ensured that Kwame brought thorough insight to Harlequin International.

Kwame contributed significantly to Harlequin’s successful ISO 9001:2008 accreditation through DNV and continues to lead all Harlequin quality, health, safety and environmental objectives with unwavering attention to detail, commitment and discipline.




Scott ThomsonIn 2008, after working within the oil & gas industry in Aberdeen for more than 10 years, Scott relocated to Ghana and partnered with Barry Williams in LFS Company Limited.  Based in Takoradi and managed by Scott, LFS Company Limited exclusively offered support services to the Oil & Gas industry in Ghana.

After 8 successful years in operation, Scott coordinated the merger of LFS Company Limited into the folds of Harlequin International.  The strategic merger of these two companies gave Harlequin International the opportunity to combine technical skill, vast experience and knowledge with the machine capacity that now provides comprehensive services to the Marine, Power Generation, Mining and Oil & Gas industries in West Africa.

With a wealth of technical knowledge and many years of industry experience, Scott continues to be a driving force in Harlequin’s operations and the exponential growth that has lead Harlequin to be a reputable service provider in the Oil and Gas industry.  Scott’s commitment, together with his remarkable engineering and management skills, have played an integral role in the development of Harlequin’s new facility in Takoradi as well as the successful completion of two OCTP subsea infrastructure development projects.




David AshongDavid Ashong obtained his B.Sc. Business Management and Computer Studies from the Wisconsin International University College and proceeded to obtain Project Management certification in South Africa.  These studies, together with CSWIP Level 1 Welding Inspection Certification from The Welding Institute in England, ensures that David brings a dynamic skillset and wealth of knowledge to Harlequin.

Prior to joining Harlequin in 2014, David was a Project Manager for the Kwarleyz Group – a leading property development company in Ghana.  With 6 years’ experience in management, David is a key member of Harlequin’s management team and has played a strategic role in the growth and expansion of Harlequin.

David’s solid management skills, together with his exceptional project planning, coordination and execution abilities, have been integral in the development of Harlequin’s new facility in Takoradi as well as the successful completion of two OCTP subsea infrastructure development projects.






Maxwell is a member of the Association of Chartered Certified Accountants (ACCA) and a member of the Institute of Chartered Accountants Ghana (ICAG).

He was an Audit Senior with Deloitte and Touché Ghana from November 2011 to October 2019. His engagement with Deloitte enabled him to work in Ghana and other African countries, notably Sierra Leone, Guinea Bissau, and Nigeria.

He audited Companies in the Financial Services Industry (Banks and Insurance Companies), Consumer and Industrial Services Companies, Government Sector and Donor funded projects which includes, AFDB, Danida, AFD and United Nations in Ghana and abroad.

Control weakness of the companies he audited were highlighted to management through management letters and attending BOD meetings to explain better to those charged with Governance.

Meeting multinational organisations timelines provided for audits was one of Maxwell’s key attributes. He was also part of the facilitation and proposal writing team of Deloitte and Touché Ghana.

Maxwell is currently pursuing an MBA program in International Business with Kwame Nkrumah University of Science and Technology (KNUST) to be completed in November 2020.

Maxwell was the Internal Control Officer for Habitat for Humanity Ghana for 2 years before joining Deloitte and Touché Ghana.

He brings to Harlequin, years of experience in external audit to help strengthen the controls in place and to help make Harlequin better.






Daniel TwimasieDaniel Twimasie is a marketing and business development professional with a BSc in Business Management from Aston University, UK.

Daniel has an extensive background in product management and sales of consumer goods to engineering and construction companies across sub-Saharan Africa and Asia. Daniel has contributed his expertise in small and medium-sized enterprises as well as large multinational organisations.

As business manager, he combined an out-going persona with uncommon drive that earned strong client relationships and an expanded customer base for Absolute Furnishings (Industrial Tools Division). There, he single-handedly drove sales of industrial tools to major construction companies in Ghana.

As a Key User Manager with Robert Bosch, Daniel effectively scoped ongoing and prospective projects in the country, causing him to consistently achieve his annual targets. Daniel was transferred to Shanghai, China to work at the Robert Bosch Headquarters for Emerging Markets where he contributed to the development of a business unit strategy deep diving into user focused innovations, price management and product communication. He ideated new product concepts with additional innovative features to boost sales and increase market share within Europe, Middle East and Africa (EMEA) region and created marketing launch packages of new products.

In 2020, Daniel joined Harlequin’s management team and has focused on strengthening existing relationships with clients by building rapport, expanding the client base and exploring new business lines to create additional revenue streams.




Faustina is the Executive Assistant to the Directors of Harlequin. She serves as the link between the Managing Director and the Directors to ensure maximum efficiency and smooth delivery of work across all departments.

She has extensive experience and knowledge in organizational administration, company management and event management. Due to this rich experience, she is tasked with the responsibility of tracking and coordinating internal and external correspondence, assisting with the development of vendor/supplier registration for an array of clients – local and international, organizing day to day business affairs of the Directors as well as producing key reports/presentations for business

She holds a Bachelor’s Degree in Business Administration (Management option) from the Central University College. In addition, she has had training in fund sourcing from the Ghana Institute of Journalism, customer service and leadership skills, records management and people management.

She has previously worked with institutions like Strategic Communications Africa Limited (Stratcomm Africa), Ghana Grid Company Limited (GRIDCo), Toyota Ghana Limited, Affiliated Computer Services (ACS), Ghana National Petroleum Corporation (GNPC), Energy Products Limited and Ghana Ports & Harbours Authority. Faustina has over 20 years of combined experience in the capacity of Board Secretary, Executive Assistant, Sales Officer, Admin Officer and Quality Control Officer.

Her strengths include her impeccable organizational skills, ability to multi task and work well under pressure as well as think on her feet.






Ezekiel KoomsonEzekiel Koomson, a self-motivated procurement specialist with over 23 years’ experience in supply chain industry in the private sector. With an aggregated work experience in Retail business, Manufacture industries and Engineering companies, he has a strong background in Business Processes.

Ezekiel is currently working for Harlequin as Procurement Officer since 2015. He was first engaged with the company as Administration Officer in 2014 and later reassigned as Procurement officer to spearhead the procurement activities of the company’s branch in Takoradi. In 2017, he was seconded to Tarkus Logistics & Engineering supplies Ltd to serve as procurement Officer to two years.

Prior to his engagement with Harlequin, Ezekiel was General Manager for Industrial & Technical Supply Centre (ITSC) Group – a leading industrial & technical tools and equipment supplies in Ghana. He also served various posts with companies he worked for; ITSC as Sales Manager before he was promoted to the General Manafer position of the company, Dupaul Wood Treatment Ltd as Materials Principal Supervisor, Accounts Senior Supervisor, ABE Ltd as Stores Senior Supervisor, NABE Wood Processing Co. Ltd as Accounts & Stores Supervisor.

Ezekiel is currently pursuing an MSC program in Accounting & Finance with Atlantic International University (AIU). He has completed Level II of Association of Chartered Certified Accountants-UK and working hard to complete the final Level, Mastery Certificate of Business Administration from Graduate School of Governance and Leadership (now called Accra Business School) and Diploma in Finance and Accounting from Cambridge International College.




Kingsley KwatengKingsley Kofi Kwarteng is an enthusiastic, self-motivated, dedicated, reliable, responsible, and hardworking person. An individual who does not allow failure to stop him from achieving his aims.

He started his career as a Craftsman with Ghana Regional Technology Appropriate Industrial Service (GRATIS) in 1996. In 2000, he joined Paterson Zochonise (PZ) as Chief Machinist responsible for machining engineering components and maintenance activities.

In 2002, he joined the Harlequin team as a machinist and with determination & hard work and the zeal to be an expert in his field, he rose through the ranks to become the organization’s Workshop Manager in 2015. He’s specialized in rebuilding & operating of Line boring/flange facing & mobile lathe machines at Sir Meccanica s.p.A (Catanzaro-Italy) and also in troubleshooting & repair of Lamborghini Gallardo and Aston Martin cars in Manchester (UK) in 2016.

His unique technical skills in engineering & design have contributed significantly to the successful completion of these milestone projects in the history of Harlequin; Marine Riser Tensioners (MRT’s) & Overhaul of Coil Lifter for Transocean, Manufacture of Steel Bend Restrictor (SBR) & Manifold & Suction Pile Can Tops for Tullow just to mention a few.


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