About Us

Our purpose is to be the world’s most sustainable mining company.



We are stronger when we work together.

  • You drive collaboration by encouraging others to share their ideas, views and opinions.
  • You openly and willingly commit to support your team and you have the courage to speak the unspeakable.


We embrace people for who they are and we value differences

  • You treat everyone with equal courtesy, kindness and dignity.
  • You demonstrate openness to diversity through your attitude, actions and words.


We take on big challenges and we deliver.

  • You set stretch targets and consistently execute your work at the highest standards.
  • You operate efficiently and effectively by optimizing your workflow and focusing on key goals.


We care for each other, the environment and the communities we touch.

  • You always look out for the well-being of other people.
  • You consider potential impacts to others, the environment and communities before making decisions.


Brendan Creaney photo
Brendan Creaney Chief Financial Officer Full Bio
Derekdu Preez photo
Derek du Preez Chief Operating Officer Full Bio
Steven Molnar photo
Steven Molnar Chief Legal Officer Full Bio
Joanne Thomopoulos photo
Joanne Thomopoulos Chief People Officer Full Bio

Board of Directors

Jill Gardiner photo
Jill Gardiner Chair of the Board Full Bio
Russell Ball photo
Russell Ball Director Full Bio
Jeane Hull photo
Jeane Hull Director Full Bio

Corporate Governance

Trevali's Board of Directors and Management are committed to the highest standard of corporate governance and monitor changing rules, regulations and best practices on a continuing basis. The Company's business and operating practices are stated in the Code of Business Conduct & Ethics, which is applicable to all directors, officers and employees. The Code establishes a set of expectations and standards for the Company and its personnel with respect to ethical business practices, personal conduct, environmental, safety and occupational health practices, competition and fair dealings, and disclosure of information.

Trevali has also adopted a Reporting and Investigation Policy, and has partnered with ClearView Connects to provide a confidential incident reporting hotline, in order to provide an avenue for representatives to raise concerns with respect to actual or potential violations of law, regulations or company policy and to ensure that any concerns are acted upon appropriately.

Board and Committee Charters

Advance Notice Policy
Anti-Bribery and Anti-Corruption Policy
Anti-Harassment Policy
Audit Committee Charter
Board of Directors Charter
Code of Business Conduct and Ethics
Corporate Governance and Nominating Committee Charter
Disclosure, Confidentiality and Insider Trading Policy
Diversity and Inclusion Policy
Exploration and Technical Committee Charter
Health, Safety, Environment and Community Committee Charter
Majority Voting Policy
People and Culture Committee Charter
Position Description for the Chair of the Board of Directors
Reporting and Investigation Policy
Shareholder Engagement Policy
Share Ownership and Clawback Policy

Corporate Directory

Head Office Trevali Mining Corporation

1900 - 999 West Hastings Street
Vancouver, BC
Canada, V6C 2W2

Phone: (604) 488-1661
Fax: (604) 629-1425
Auditor Price Waterhouse Coopers LLP, Chartered Accountants

250 Howe Street,Suite 700
Canada,V6C 3S7

Transfer Agent Computer Share Investor Services Inc.

Stock Transfer Services
510 Burrard Street
Vancouver, Canada, V6C 3B9

Phone: (604) 661-9400
Fax: (604) 661-9401
Registered Office Cassels Brock & Blackwell LLP

Suite 2200, HSBC Building
885 West Georgia Street
Vancouver, BC
Canada, V6C 3E8

Brendan Creaney

Chief Financial Officer

Brendan Creaney photo

Brendan Creaney is a business administration professional with 15 years of experience in the mining and construction industry with a focus on finance, capital allocation, mergers and acquisitions, investor relations, and strategy. Before joining Trevali he spent 7 years at Goldcorp holding various progressive roles ending his tenure as Director of Corporate Development and Value Assurance. Prior to Goldcorp positions were held at Barrick and Novagold advancing the development of projects. Mr. Creaney holds a Masters of Business Administration with a specialization in Finance from the University of Manchester and a Bachelors of Arts from the University of Victoria. 

Derekdu Preez

Chief Operating Officer

Derekdu Preez photo

Derek du Preez brings more than 25 years of experience working at mining operations across Canada, Australia, and Africa, where he has held operational, project and technical roles with increasing levels of responsibility. Most recently, he served the Company as Chief Technical Officer where he successfully completed several critical projects, including the Rosh Pinah Expansion Project ("RP2.0") NI 43-101 Feasibility Study. Before joining Trevali, Derek was a Principal Consultant at AMC Consultants. Prior to that he held the position of Director, Digital Transformation, North Atlantic at Vale Canada, and Head of Digital Delivery Centre at South32, as well as a progression of operational roles at BHP Billiton. He holds a Bachelor of Engineering Technology and Mechanical Engineer's Certificate of Competency from South Africa, is a Technologist Member of the Institute of Engineers Australia in the Mechanical College, and has completed a Management Development Program through the University of the Witwatersrand.

Steven Molnar

Chief Legal Officer

Steven Molnar photo

As Chief Legal Officer, Steven Molnar is responsible for all legal matters involving Trevali and its subsidiaries, in addition to providing leadership and direction on matters relating to corporate governance and enterprise risk management. Before joining Trevali, Steve practiced corporate and securities law at McCarthy Tétrault LLP, where he provided advice on a 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. Steve 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

Chief People Officer

Joanne Thomopoulos photo

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.

Jill Gardiner

Chair of the Board

Jill Gardiner photo

Ms. Gardiner is a professional corporate director and currently serves on the board of Capital Power Corporation and Hochschild Mining plc. Previously Ms. Gardiner spent over 20 years in the investment banking industry, most recently as Managing Director and Regional Head, British Columbia, for RBC Capital Markets. In her various roles in corporate finance, mergers and acquisitions, and debt capital markets she provided strategic advice to, and helped raise capital for, numerous corporations with a focus on commodity-related, infrastructure and diversified industries. Ms Gardiner is the former Senior Project Manager at the Ontario Energy Board and lecturer at the University of Victoria in corporate finance and human resource management. She previously served as Board Chair of Turquoise Hill Resources Ltd. and as a director of the boards of Capstone Mining Corp., Parkbridge Lifestyle Community Inc., SilverBirch Hotels & Resorts, and Timber Investments. Ms. Gardiner holds a Bachelor of Science and a Master of Business Administration, both from Queen’s University.

Russell Ball


Russell Ball photo

Russell Ball is the Managing Director at QDBS Resources Inc. and the former Chief Executive Officer and a director and Executive Chairman of Calibre Mining Corp. Previously, Mr. Ball was 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 is both a Chartered Accountant from the Institute of Chartered Accountants of South Africa and a Certified Public Accountant in the USA.

Jeane Hull


Jeane Hull photo

Ms. Hull has over 35 years of operational leadership and engineering experience, most notably holding the positions of Chief Operating Officer for Rio Tinto plc at the Kennecott Utah Copper Mine and Executive Vice President and Chief Technical Officer of Peabody Energy Corporation. Ms. Hull has also held numerous management engineering and operations positions with Rio Tinto and affiliates. Prior to joining Rio Tinto, she held positions with Mobil Mining and Minerals, and has additional engineering, environmental and regulatory affairs experience in the public and private sector. Ms. Hull is currently a director of Epiroc AB, Interfor Corporation and Pretium Resources Inc., and also serves on the Advisory Board for South Dakota School of Mines and Technology. A retired Registered Professional Engineer, Ms. Hull holds a Bachelor of Science (Civil Eng.) from South Dakota School of Mines and Technology and a Master of Business Administration degree from Nova Southeastern University.