The Leadership of GMC develops and implements corporate strategy and operates the company’s business with oversight from the  board, with the goal of producing sustainable long-term value creation

Meet Our Leaders

Jurgen Eijgendaal ​

Jurgen Eijgendaal ​

Managing Director
Joseph Ampong


General Manager
Joseph Ntsiful


chief financial Officer

Benjamin Quashie

Jurgen Eijgendaal


Jurgen Eijgendaal is a business executive with over 25 years of international managerial mining experience. He was appointed CEO of Ghana Manganese Company Limited (GMC) on 01 March 2020, a position he also held during the period 2002 to early 2018. During this period, he was a member of the Group Executive Committee of Consolidated Minerals Limited (CML). Prior to becoming the GMC CEO in 2002, he was the Resident Director of GMC a position he obtained in 1998.

Jurgen has been the President of the Ghana Chamber of Mines for two (2) consecutive terms between 2006 and 2010 and has served on various board of directors and business committees. Prior to coming to Ghana he was the CEO of an underground chrome ore mine in South Africa. He is the founder/owner of JDS and Associates Limited (JDS), a consultancy/advisory company to international investors in Ghana.

Jurgen holds a MA degree from the University of Leiden, the Netherlands and currently resides with his family in Ghana.

Joseph Ampong


Joseph Ampong is a mining engineer and a seasoned professional in the industry with over 27 years remarkable experience in surface and underground mining. He was appointed GMM of Ghana Manganese Company Limited (GMC) on 1st September 2013. Before this appointment, he was the mine manager of the company.

Mr. Ampong rose through the mining ladder after completing BSc Degree in mining engineering and started his carrier from Goldfields Ghana- Tarkwa mine in 1994.

He joined Ghana Manganese Company in 1998 and was appointed mine superintendent of the company from 2005 where he particularly achieved turn around situation in challenging operations. He is undoubtedly an asset to the team and report to the Managing Director and CEO.

Joseph Ntsiful


Joe was appointed CFO of Ghana Manganese Company (GMC) on 01 February 2020 where he Leads the Finance, Supply Chain, Port Operations, Internal Audit, HR and IT groups reporting to the Managing Director and CEO.

Prior to commencing at GMC, Joe worked for Newmont Corporation in a variety of roles as Regional Capital and Investment Manager for Africa, Assistant Financial Controller and Head of Business Analysis for Africa, Head of Finance for Akyem Mine and most recently as Head of Finance for Ahafo Mine. Joseph was involved in the project development and construction of Newmont’s Akyem mine and the expansion of Ahafo mine to include Subika Underground. He also worked at Newmont North America operations in Colorado and Nevada on various business planning and investment projects. 

Before joining Newmont, he worked for a number of UK financial institutions including Barclaycard and the Nationwide Building Society where he was responsible for managing a network of professional relationships, including major quoted and private property companies, government bodies in the Social Housing sector, institutional fund managers, key influencers within the property and construction industry and sponsors of project finance through the UK government’s private finance initiative.

Ato Quashie


Benjamin Quashie is an Executive Mining Engineer with over 27 years of global mining experience in metalliferous operations for both surface and underground mines. He was appointed as the Chief Operations Officer (COO) in May 2018, by GMC Board from Beijing where he was based. Ben as he is affectionately called assumed the office of a newly created role at GMC, Chief Sustainability Officer (CSO), in September 2020, and is responsible for Geology, Health and Safety, Environment, Social Responsibility, External Relations & Communication and Security.

Prior to his engagement at GMC, Ben was the Practice Lead Engineering – Asia, for RungePincockMinarco (RPM), a renowned mining consultancy firm headquartered in Brisbane, Australia. He managed project teams in Asia and participated in the completion of Independent Technical Reports (ITR) and/or Competent Person’s Report (CPR) for companies seeking to go for IPO and private equity investments internationally. 

Ben also worked for J.T BOYD Company, Pittsburgh, USA, as an executive mining consultant focusing on higher level strategic work such as Feasibility Studies, Technical Due Diligence, Fatal Flaw Reviews of active mining companies and Independent Technical Reports for the purposes of mergers and acquisitions. 

He was with China ENFI Engineering Company, a non-ferrous metal design institute, Beijing, China, as a senior mining engineer predominantly working on mine planning, pit optimization and pit design and scheduling for Ore Reserve estimation. His work at ENFI also involved provision of underground mining solutions to companies across China. 

Mr. Quashie is a registered member of Society for Mining, Metallurgy and Exploration (SME), a JORC Compliant mining engineer and a Competent Person for Ore Reserves as designated by Hong Kong Exchange.