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At Trevali, we are asking ourselves some big questions about what it means to be a global mining company in today’s world.

We know that modern society needs mineral resources and the products that mining helps create.

As times change, society’s expectations of us change too.

Expectations about environmental responsibility.

Around what it means to be a good corporate citizen.

About being a company that is sustainable for the long-term.

And one that benefits its employees, its communities and its shareholders.

At Trevali, we are excited by these evolving expectations. They inspire innovative ideas and create new opportunities for us to enhance how our business operates.

Motivated by the potential that these questions present, we are focused on constant, incremental improvements in our business. Bringing creativity, agility and innovation into the very heart of the company. Operating efficiently and with the highest of safety standards. We are working to make ongoing improvements that contribute to achieving larger long-term goals.

By asking, and answering, these questions, we will create a different kind of mining company, and a new Trevali.

We embark on this journey with the key ingredients for success: strong assets, potential for resource expansion, a great balance sheet, and an engaged team of professionals.

As a reflection of our new vision, we are also launching a new corporate identity.

We are just getting started. Watch this space.

Trevali – the Future of Mining


Ricus Grimbeek
President & Chief Executive Officer

About Us


About Trevali

Trevali is a global company that operates its wholly-owned Santander mine in Peru, the wholly-owned Caribou mine in the Bathurst Mining Camp of northern New Brunswick, its 90% owned Rosh Pinah mine in Namibia and its 90% owned Perkoa mine in Burkina Faso.

To be the premier global base metals mining company, preferred by investors for solid performance and by communities, partners and employees for mutual benefit and trust.
To deliver superior financial returns through operational excellence and strategic allocation of capital, while valuing our people and investing in the communities and environments where we safely operate.
We have respect for each other and for the communities in which we work.
We are driven, goal-oriented and solutions-focused.
We demonstrate fiscal responsibility and we look for opportunities to continuously improve.
We execute our work consistently and with safety at the top of our minds.
We recognize that learning is ongoing and we openly share ideas and collaborate with each other.

Trevali recognizes that Health, Safety, Environment, Community (HSEC) and sustainability principles are a key component of a successful business. Trevali is committed to incorporating these principles into all plans, strategies and decision making.


We are governed by policies for our business code of conduct, diversity and anti-discrimination. We believe in creating a workplace free from discrimination and demonstrate responsible behavior by our employees and suppliers. We operate in compliance with the applicable laws and regulations pertaining to our operations. The above provides the license to operate, protection of our reputation and value for our shareholders.

Communities and People

Through integrity, reliability and transparency, we will build meaningful partnerships with our communities in which we operate. We believe that interactions, consultations and communication must be ethical. We embrace the complexity, diversity, cultural heritage and customs of our people.


Our environmental and social management system proactively guides statutory compliance, responsible stewardship of the land, air and water in which we interact and implements environmental and social closure planning that is self sustaining for present and future generations.

Safety and Health

Our primary focus is the safety of our people who work at our assets. We believe that all injuries and occupational diseases are preventable and we will be unwavering in our pursuit of a proactive safety culture comprising of personal responsibility, accountability, and teamwork. We provide all our people with the necessary equipment, tools and training to conduct the work safely through a continuously improved and structured safety management framework.

Management Team


Ricus Grimbeek, President & CEO

Ricus Grimbeek is an experienced mining executive with nearly 30 years of progressive experience in the resource sector, and has a proven track record working at all levels of the business. Before joining Trevali, he was the Chief Operating Officer of Vale Base Metals North Atlantic, where he held responsibility for the overall operating and financial performance of 16 mining and refining operations in four countries. He was also previously the President and COO of South32 Australia, overseeing 6 operations in Australia and Colombia. He has also served as Asset President of Aluminium Australia, Head of Group HSEC for BHP Billiton, President and COO of BHP Billiton’s Ekati Diamond Mine, Executive Vice President Mining and Concentrating for Lonmin Platinum. Ricus holds a Bachelor of Engineering (Mining) from the University of Pretoria, has completed the Management Development Program from the University of Orange Free State, and holds an Advanced Certificate in Mine Ventilation from the Chamber of Mines.


Gerbrand Van Heerden, Chief Financial Officer

Gerbrand Van Heerden is a Chartered Accountant from the Institute of Chartered Accountants of South Africa, and he has over 18 years of experience in various senior management roles in the mining industry, specializing in base metals. He commenced his career with Deloitte, following which he joined Metorex Limited, a multi-listed mid-tier mining company as Group Financial Controller in 2004. At Metorex, he held a number of senior management positions, becoming a specialist in a wide field including technical consolidation and accounting, treasury, cross border taxation, trading and marketing of commodities, derivatives, group and debt re-structuring, due diligences, feasibilities, as well as a strong operational influencer to improve business profitability and sustainability. He was also involved in numerous green and brownfield projects, in Southern and Central Africa, through commissioning and into operational readiness during this period. He joined Glencore in 2013 as Chief Financial Officer of the newly acquired Rosh Pinah Zinc Corporation and was instrumental in the turn-around and modernization of the operation with a focus on establishing a continuous improvement culture. Gerbrand graduated from the University of Johannesburg, South Africa.


Alex Terentiew, Senior Vice President, Corporate Development & Investor Relations

Alex Terentiew spent over 12 years in the investment industry as a mining and commodity research analyst at Scotia, Credit Suisse, Raymond James and most recently at BMO Capital Markets. At BMO, he was a top-ranked analyst covering the base metals sector, in addition to providing insightful research focused papers of long-term growth potential, value margins and commodity research. Prior to his career in research, he was a licensed Professional Geoscientist in the Province of Ontario. Alex holds an MBA degree from the Rotman School of Management, a Master of Applied Science in Civil Engineering and a Bachelor of Science from the Department of Geology, both from the University of Toronto.


Steven Molnar, Vice President, General Counsel & Corporate Secretary

Steven Molnar has over 8 years of experience in corporate and securities law. Before joining Trevali, he practiced corporate and securities law at McCarthy Tétrault LLP, where he provided advice on a wide variety of matters and transactions including corporate governance, regulatory compliance and public company reporting, mergers, acquisitions and dispositions, equity and debt financings, joint ventures and other commercial arrangements in the mining industry. Steven holds a law degree from Osgoode Hall Law School and a Bachelor of Arts from Simon Fraser University. He is a member of both the British Columbia and Ontario Bars.


Joanne Thomopoulos, Vice President, Human Resources Strategy

Joanne Thomopoulos is an influential senior HR leader with over 15 years of direct leadership experience. Before joining Trevali, she spent over 10 years at BC Hydro and 8 years at BCLC where she championed key strategic HR initiatives that leveraged talent to maximize business efficiencies. She has led workforce redesign projects, developed performance management and talent development frameworks, and provided strategic guidance on mergers, acquisitions and integrations. She is a Chartered Professional in Human Resources, holds a Strategic Human Resources Management Graduate Certification, Advanced Certification in Management and a Diploma in Criminal Justice. She is also a certified coach and facilitator for Kouzes and Posner’s leadership practices.

Board of Directors

Jessica McDonald, ICD.D, Chair


Jessica McDonald currently serves as Chair of Canada Post, which includes in its Group of Companies a majority shareholding of Purolator Courier, and subsidiaries Innovapost and SCI Logistics. She has previously served as President and CEO of Canada Post on an interim basis. Prior experience includes President and CEO of BC Hydro, Chair of Powertech Labs Inc, and Board Director of Powerex Corp. She serves on the Member Council of Sustainable Development Technology Canada, and was previously a Visiting Fellow at Stanford’s Center for Energy Policy and Finance. She is a Director of the Board of Trade of Greater Vancouver, as well as a Board Director of Hydro One and Coeur Mining. She has significant experience in Government including Deputy Minister to the Premier and and Head of the Public Service of British Columbia. She is a certified ICD Board Director and a member of the Alternative Dispute Resolution Institute of Canada. She has been named to Canada’s Top 100 Most Powerful Women Hall of Fame, Canada’s Diversity 50, and Canada’s Top 40 Under 40.

Dan Isserow, Vice Chair


Dan Isserow is a Chartered Accountant with financial and business operations leadership experience and a successful track record of growing organizations across various business sectors, including introducing the Nando’s restaurant franchise to Canada and serving as its President and CEO from 1993 to 2012. He is currently the Co-Founder, President and Chief Financial Officer with Silica Ventures, a company focused on the expanding market for digital sign applications; with customers in Canada and the United States. He is a Chartered Accountant from the Institute of Chartered Accountants of South Africa. He has also completed the ICD Directors’ Education Program (DEP).

Russell Ball, Director


Russell Ball was most recently Executive Vice President, Chief Financial Officer and Corporate Development of Goldcorp Inc., a role he assumed in March 2016 after initially joining Goldcorp Inc. in 2013 and serving as Executive Vice President of Capital Projects, Strategy and Corporate Development, including oversight of their primary growth projects. Prior to his role with Goldcorp Inc., he served in varying capacities for Newmont Mining Corporation, including Strategic and Business Planning, culminating with his appointment as Executive Vice President and Chief Financial Officer. He currently serves on the Board of Lydian International, Calibre Mining Corp, Allegiant Gold Ltd. and Columbus Gold Corp. He is both a Chartered Accountant from the Institute of Chartered Accountants of South Africa and a Certified Public Accountant in Colorado.

Dr. Mark Cruise, Director


Mark Cruise co-founded Trevali in 2007 and served as its President and CEO from February 2008 to April 2019. He has previously served as the Vice President, Business Development of Cardero Resources Corp. from March 2007 to September 2011, and Vice President, Exploration from November 2004 to March 2007. From 1996 to 2004, he was the Senior Geologist with Anglo American plc. He is currently a director of Velocity Minerals Ltd., and a Trevali-nominated director of Prism Resources Inc. He holds a Doctorate of Geology and Bachelor of Geology from the University of Dublin, Trinity College, and is a professional member of the Institute of Geologists in Ireland and the European Federation of Geologists.

Anton Drescher, Director


Anton Drescher is a Certified Public Accountant and a Certified Management Accountant with over 35 years of experience as an officer and director of companies in various industries, including mining, telecommunications, technology and waste management. He is currently a director of Corvus Gold Inc., a director of International Tower Hill Mines Ltd., the Chief Financial Officer and a director of Oculus VisionTech Inc., a director of RavenQuest BioMed Inc., a director of River Wild Exploration Inc., and Chief Financial Officer and a director of Xiana Mining Inc. He is also the President of Harbour Pacific Capital Corp., a private company that provides consulting services for mergers and acquisitions, corporate reorganizations, debt and equity financings and regulatory filings. He has been a Certified Public Accountant and a Certified Management Accountant since 1981.

Chris Eskdale, Director


Chris Eskdale joined Glencore International A.G. in January 1997 as Asset Manager and is currently Head of Zinc Industrial Assets for Glencore. Prior to this, he was an accountant at Deloitte & Touche in London and Moscow. He currently serves on the Board of a number of international mining companies, specifically: Compania Minera Volcan S.A.A., a Peruvian listed mining company engaged in the extraction and production of zinc, lead and copper concentrates (since 2012); the Noranda Income Fund (since 2013); and Recylex S.A., a Paris-listed company processing zinc and lead materials (since 2014). He holds a Master of Arts (Honours) degree from the University of Oxford and qualified as a Chartered Accountant in July 1994 with the Institute of Chartered Accountants in England and Wales.

Mike Hoffman, Director


Mike Hoffman is a professional mining engineer with over 35 years of experience in mine operations, projects, engineering and corporate development. He has served in senior executive positions at Belo Sun Mining Corp., Crocodile Gold Corp., Goldcorp Inc., Desert Sun Mining Corp. and Yamana Gold Inc. He is also currently a director of Eastman Resources Inc. He received a Bachelor of Applied Science (Mining Engineering) from Queen’s University and is a Professional Engineer in Ontario. He has also completed the ICD Directors’ Education Program (DEP).

Dan Myerson, Director


Dan Myerson is currently the head of Glencore’s Canadian zinc business, and has worked closely with Trevali at both the corporate and operations level. Prior to joining Glencore, he worked in the global capital markets division of Morgan Stanley with a principal focus on the Asia-Pacific region. He holds a Master of Finance (Honours) degree from the Queensland University of Technology in Brisbane, Australia.

Richard Williams, Director


Richard Williams is a former Chief Operating Officer at Barrick Gold Corporation and Barrick’s Executive Envoy to Tanzania (2014 to 2018). He has also served as Chief Executive Officer of the Afghan Gold and Minerals Company (2010 to 2014) and as a non-executive director of Gem Diamonds Limited, listed on the London Stock Exchange (2018 to 2015). In addition to his mining experience, Mr. Williams served as the Commanding Officer of the British Army’s Special Forces Regiment, the SAS. He has an MBA from Cranfield University, a Master’s Degree in Security Studies from Kings College London, and a Bachelor of Science in Economics from University College London. He is also on the Board of Canada’s Vimy Foundation, a charity with a mission to preserve and promote Canada’s First World War legacy, and London’s Mine and Money Conference.

Committee Composition