IRMA’s leaders are experts in mining, standard-setting, and credible assurance and support the Board of Directors in strategy and day-to-day implementation of IRMA’s programs.

Aimee Boulanger, Executive Director

As Executive Director, Aimee provides direct service to IRMA’s multi-stakeholder leadership and manages IRMA’s staff and consultant team.  She has worked on mining issues for more than 20 years, with substantial experience supporting communities directly affected. In addition, Aimee has been Program Director and Executive Director for children’s environmental health and women’s leadership not-for-profit NGO organizations. She specializes in communications between diverse networks of scientists, businesses, nonprofit advocates, government agencies, healthcare professionals, and citizens striving toward common goals. Aimee holds a degree in Environmental Studies and Politics from Mount Holyoke College and has served IRMA’s leadership since 2012.


Rebecca Burton, Director of Corporate Engagement

With over a decade of experience in sustainability, corporate responsibility and philanthropy, Rebecca believes there is enormous capacity within the private sector to propel positive change and lead the way in driving responsible business practices. Within IRMA, Rebecca works to bring new constituents in the private sector into IRMA—specifically purchasers of mined materials and investors—by demonstrating the tangible ways their membership, involvement and investment can influence market uptake and ultimately forward more responsible mining practices. Prior to joining IRMA, Rebecca was an independent consultant focused on sustainability, following several years at Tiffany & Co. (2010 – 2018) where she helped advance initiatives in strategic philanthropy and responsible sourcing. She has a BA in Linguistics and International Studies from the University of Utah and a Master’s in Economic and Political Development from Columbia University.

Kristi Disney Bruckner, Senior Policy Advisor

Kristi is an attorney with 20 years of experience working on complex law and policy issues with governments, communities, companies, and multi-stakeholder initiatives. She assists with IRMA’s public engagement, partnerships, communications, and ongoing work to improve standards and audits. Her experience includes over a decade of leadership at Sustainable Development Strategies Group, working to align management of renewable energy and natural resources with sustainable development objectives. She is an adjunct professor of climate change law, sustainable development and international trade, and community engagement courses at law schools in the US and Scotland. Kristi has a BS in Social Work with minors in Journalism and Economics from the University of Tennessee and a JD and LLM from the University of Denver with specializations in Environmental Law and Policy and International Resources Transactions Law and Policy.

Michelle Smith, Dir. of Standards and Assurance

Michelle’s 25+ year career in sustainability consulting has focused on developing credible and effective environmental, safety, and health management systems and performing audits of a broad spectrum of operations worldwide, including a focus on the extractive industry, minerals processing, energy, and technology.  Prior to joining IRMA she consulted to IRMA in the final development phases of the standard. As a senior leader with the certification body, ERM CVS, she oversaw third party assessments against a variety of management system standards and minerals and mining-related standards; this included the deliver of third party audits at mines in Central and South America and Africa during the launch phase of IRMA’s responsible mining standard.  Michelle is from the Pacific Northwest region of the US, and received a Bachelor of Liberal Arts from Whitman College.  She has participated in a variety of community-based organizations and currently serves on the Board of Directors for a local salmon habitat restoration organization, Nooksack Salmon Enhancement Association (NSEA).

Lisa Sumi, Dir. of Standards and Assurance

For the past 20 years Lisa has worked as an
extractive​s-industr​y researcher and analyst, focusing on social and environmental best practices and mechanisms to encourage industry leadership and create long-lasting benefits for affected communities. Lisa has a background in journalism and holds a Masters degree in Environmental Science and Physical Geography from the University of Toronto. She has served as IRMA’s Director of Standards and Assurance since 2013.


Kristen Vissers, Program Coordinator

Kristen Vissers joined IRMA in 2019 after 13 years at Rainforest Alliance as part of the executive office team where she directly supported the organization’s President and Executive Vice President.  Kristen has experience in operational due diligence, project and budget management, all aspects of governance, Board committee meetings, and external events and conferences. Prior to joining the Rainforest Alliance, Kristen was involved in hands-on conservation projects with The Nature Conservancy, the US Forest Service, and the Grand Canyon National Park, among others.  She also coordinated the CEO Forum Group from which the current successful Appalachian Woods Alliance was developed.  She has a BS from Northern Arizona University with a specialty in Environmental Education.

Adan Olivares Castro, Latin America Special Projects Coordinator

As Projects Coordinator for the Latin America region, Adan coordinates projects focused on outreach and engagement with stakeholders impacted by mining in Latin America. He has over 5 years of both field engineering (open-pit geotechnical, tailings construction, and mine waste reclamation) and continuous improvement experience within the mining industry. With his mining engineering experience and personal connection to Latin America, having been born and raised in Colombia, Adan is passionate about improving socio-environmental issues with respect to mining. Adan holds a degree in Geological Engineering from the University of British Columbia, is a registered member with Engineers and Geoscientists British Columbia, and is currently pursuing a master’s degree at Queen’s University.