Mr. Locke joined Marimaca Copper in July 2020 as its President, assuming the role of CEO and joining the Board of Directors in April 2021. Hayden is a highly experienced mining executive, having spent the latter part of his career developing and leading successful LSE and ASX-listed mining companies. Prior to that he worked in investment banking with J.P. Morgan and mining private equity with Barclays Natural Resource Investments. Since early 2018, Mr. Locke has been Chief Executive Officer of AIM-listed Emmerson Plc (“Emmerson”), a Moroccan focused potash development company, where he remains on the board as a Director.

Prior to this, Hayden was Head of Corporate for ASX-listed gold developer Papillon Resources, which was acquired by B2Gold in late 2014 for US$600 million, and Head of Corporate and Technical Services (Geology, Mining and Processing) with ASX-listed potash developer, Highfield Resources.

Mr. Michael (Mike) Haworth joined the Board of Directors of Marimaca Copper in February 2016. He was nominated by Marimaca’s largest shareholder, Greenstone Resources, a specialist mining and metals private equity fund which he co-founded. Mike’s considerable market and corporate finance skills provide the Board with valuable financial, corporate and strategic input. Mike previously worked as a Managing Director at JP Morgan in London where he was Head of Mining and Metals Corporate Finance.

Mike is currently a Director of Excelsior Mining, Northern Vertex, Adventus, Ncondezi Energy and an Alternate Director of Metro Mining and Heron Resources. He qualified as a Chartered Accountant and holds a Bachelor’s Degree in Commerce from the University of Witwatersrand in Johannesburg. He is a British national and UK resident.
Audit Committee Member
Compensation Committee Chairperson

Mr. Tim Petterson was appointed as an Independent Director of Marimaca Copper in November 2018. He was nominated by and represents Tembo Capital, the Company’s second largest shareholder. Tim is qualified as a mining engineer, which complemented by a career in investment banking, brings a combination of technical and corporate expertise to the Board.

He is also a founder and Executive Chairman of Minera Cobre, a Canadian private copper exploration company active in Colombia. Prior to relocating to Canada, Tim served as Head of Global Mining Research at both HSBC James Capel and ABN AMRO, having led many high-profile public offerings and financings. He holds a Bachelor’s degree in Engineering from, and is an Associate of, the Camborne School of Mines.

Mr. Clive Newall is a Non-Executive Director of Marimaca Copper. Clive has spent the last twenty-five years, and majority of his career, in the leadership team of one of the world’s largest global copper companies, TSX-listed First Quantum. He is a co-founder and has been President and Director of First Quantum since its formation in 1996.

Clive graduated from the Royal School of Mines, Imperial College, England in 1971 with an honours degree in Mining Geology, and was awarded an MBA from the Scottish Business School at Strathclyde University. He has worked in mining and exploration throughout his career, having held senior management positions with Amax Exploration Inc. and the Robertson Group plc.

Mr. Colin Kinley joined the Board of Marimaca Copper in February 2016. He is the lead Independent Director and Chair of the Audit Committee. Previously he was appointed Marimaca’s Chairman in June 2017. Colin is an internationally respected explorationist in the upstream resources sector.

He is currently CEO of Kinley Exploration, a private integrated project management advisory firm servicing the mining and oil and gas sectors, co-founder and COO of Eco Atlantic Oil and Gas, an independent oil and gas company, and CEO of Jet Mining, a proprietary and patented hydraulic borehole mining company.
Chair of Audit Committee

Mr. Alan Stephens is a Non-Executive Director of Marimaca Copper. He co-founded the Company in 2005 and transitioned from his executive to non-executive role in 2018. Alan is a respected exploration geologist, known for his involvement in the discovery of some of the world’s most significant copper mining operations. It is this geological experience and knowledge that Alan brings to the Board.

Alan has served as the Vice President of Exploration for First Quantum and Exploration Manager for Cyprus Amax, managing exploration teams in Latin America, Africa, Europe and Asia. Alan is a Fellow of the Society of Economic Geologists and of the Institute of Materials, Minerals and Mining. He holds a Bachelor’s in Mining Geology from the Royal School of Mines, Imperial College, University of London. Alan is a British and US national, resident in the UK, and fluent in Spanish.

Mr. Giancarlo Bruno Lagomarsino is a Non-Executive Director of Marimaca Copper. A Chilean national and mechanical engineer by training, Giancarlo is a seasoned mining professional with 35 years of experience in mine maintenance, safety and management. He began his career at the Los Bronces Mine, then owned by Exxon, in 1988 and over the course of the next 20 years he worked across numerous operations and various roles, finishing with Anglo American as Operations VP of its Colluahuasi Mine and, finally, VP of the Anglo Norte business unit, prior to its sale in 2015.

Giancarlo was a member of the consortium that acquired Anglo Norte and became CEO of the entity, Mantos Copper SA, in June 2015. In that role, Giancarlo was a key member of the team that improved and expanded operations at Mantos Blancos, delivered significant exploration success, and financed and commenced construction of the Mantoverde project, which is expected to commission in late 2023. Most recently, Giancarlo was Senior VP of Capstone Copper in charge of its Chilean operations.