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MAC Staff

Meet the members of the MAC Team. 

Pierre Gratton
Position: President and Chief Executive Officer

Following three years as head of the Mining Association of British Columbia, Pierre returned to MAC in 2011 as President and CEO. In his role, he leads all activities undertaken by MAC, represents the association publicly, and is a member of the Board of Directors and Executive Committee. Pierre is a long-time staff member of MAC, initially joining the association as Vice President of Sustainable Development and Public Affairs in 1999. Pierre was instrumental in the development and implementation of the Towards Sustainable Mining (TSM) initiative. A well-respected voice in the industry, he was honoured as a Distinguished Lecturer by the Canadian Institute of Mining, Metallurgy and Petroleum in 2005. Pierre also sits as First Vice President of the Interamerican Mining Society and Vice President of the Raw Materials Committee of the Business and Industry Advisory Committee to the OECD.

Justyna Laurie-Lean
Position: Vice President, Environment and Regulatory Affairs

Justyna works with MAC members in addressing and understanding the federal regulatory and legislative environment that Canadian mining companies adhere to. In her role, she monitors emerging regulatory issues and participates in policy development for a wide range of federal acts and regulations. Prior to joining MAC in 1991, Justyna worked in various mining operations in Ontario, Manitoba and British Columbia, followed by a posting with the federal government. A pioneer in the industry, Justyna was one of the first female mining engineers in Canada, having completed a degree in Mining Engineering from McGill University in 1978.

Ben Chalmers
Position: Vice President, Sustainable Development

Ben is responsible for the implementation of MAC’s Towards Sustainable Mining (TSM) initiative. In his role, he works with members on issues related to corporate responsibility both within Canada and abroad. Ben also follows policy development related to wildlife, including biodiversity, species at risk and migratory birds. Ben began working in the industry in 2004 at the Myra Falls Operations in British Columbia where he worked as an Environmental Supervisor for the mine. Prior to joining MAC in 2011, Ben served as Vice President of Environment and Technical Affairs for the Mining Association of British Columbia and Senior Policy Analyst with Natural Resources Canada. Ben also served as Chair of the Board for the Campbell River Economic Development Corporation.

Charles Dumaresq
Position: Vice President, Science and Environmental Management

Charles focuses on regulatory and environmental aspects of mining, including mine waste management, effluent quality, and monitoring and mitigating effects on water quality and the aquatic environment. Prior to joining MAC, Charles spent 22 years with the Government of Canada, working on issues related to mining and the environment. He is experienced in technical and policy aspects related to legacy environmental issues associated with orphaned and abandoned mines, and has extensive experience in regulatory development and implementation. A geologist by training, Charles first gained experience in the mining industry working on mineral exploration projects. 

Johanne Senécal
Position: Vice President, Government Relations, Aboriginal Affairs and Communications

Johanne promotes the interests of the industry by leading government relations activities, public policy development and external communications programming at MAC. Johanne is also responsible for MAC’s work in relation to advancing Aboriginal relations in the mining sector. A lawyer by trade, she has more than 20 years of public and private sector experience, including the natural resources industry. Prior to joining MAC, Johanne held a number of senior-level positions, most recently at Strategy Corp—a national government relations firm. Johanne also held distinguished roles at the federal level, including Senior Policy Advisor to the Prime Minister of Canada, Chief of Staff to the Minister for Intergovernmental Affairs, and Judicial Affairs Advisor to the Minister of Justice.

Marilyn Fortin
Position: Director, Corporate Services

Marilyn oversees the operational activities of the association, including human resources, information technology, finance, and facilities management. Marilyn also is the primary contact for membership and member services, coordinates Board of Directors events and conferences, and provides a Board secretariat function. Prior to joining MAC in 2003, Marilyn held management positions with public, private and non-profit organizations, including the Canada Museum of Science and Technology where she held the position of Corporate Secretary. She is a seasoned professional with extensive knowledge of membership services, human resources and administration. 

Brendan Marshall
Position: Senior Director, Economic and Northern Affairs

Brendan works to advance the mining industry’s understanding of key economic issues, such as taxation, international trade and investment, transportation and infrastructure, energy and climate change, and innovation. Brendan is also responsible for mining policy and regulation in Canada's North. Brendan is the lead writer and researcher for MAC’s annual Facts & Figures publication. Prior to joining MAC, Brendan held several federal government positions, including Research Assistant to the Speaker of the Senate of Canada, Lead Advance to the Prime Minister of Canada, and Executive Assistant to the Minister of Canadian Heritage and Official Languages. Brendan holds two Master’s degrees in Political Philosophy and Energy Management.

Jessica Draker
Position: Director, Communications

Jessica oversees MAC’s communications initiatives and is primarily responsible for media relations, social media, web communications and the development of print and digital materials.  She also supports government relations, branding and promotional activities. Jessica has worked in communications roles in both the private and public sectors. Jessica first became acquainted with the industry at PricewaterhouseCoopers (PwC) Canada, where she led the national media relations strategies for the firm’s mining practice. She holds a Bachelor of Journalism and a Post-Graduate Certification in Public Relations.  

Tara Shea
Position: Director, Towards Sustainable Mining

As Director of MAC’s Towards Sustainable Mining (TSM) initiative, Tara is responsible for the day-to-day management of the program. Specifically, her responsibilities include producing MAC’s annual TSM Progress Reports detailing member performance in all areas of the program, coordinating and delivering training workshops, and promoting TSM across the industry. Tara previously worked for a municipality where she was responsible for delivering economic and community development initiatives.  Tara graduated from the University of Windsor with a Bachelor of Arts in International Relations and Development Studies. 

Justin Laframboise
Position: Finance Officer

Justin manages all finance-related functions of MAC, including account receivables and payables, financial reporting, and budget implementation. Justin is a Certified Management Accountant and graduated from Canadore College and Nipissing University.

Monique Laflèche
Position: Executive Assistant

Monique is the Executive Assistant to the President and CEO, providing administrative, scheduling and office support. Monique also coordinates the nomination submissions for the Canadian Mining Hall of Fame, of which MAC is a major sponsor. Monique has extensive experience within the mining industry, having worked at Natural Resources Canada for more than 30 years prior to joining MAC.

Danielle Poitras
Position: Receptionist

Danielle manages MAC’s reception area, assists with events programming and provides administrative support for various facets of the association.