Board of Directors

David c. Aldous

David Aldous
Mr. Aldous joined the Board in 2013 and became Chairman in 2018. He has over 30 years of corporate leadership experience in the energy, alternative energy, chemical and petrochemical industries. He currently serves as Chief Executive Officer and Director of Rive Technology Inc., a privately-held provider of solutions for diffusion-limited reactions to the refining, chemicals, biofuel and water industries. Prior to joining Rive Technology in 2012, Mr. Aldous served as Chief Executive Officer and Director of Range Fuels Inc., a clean energy and biofuels company from 2009 to 2012. Mr. Aldous also spent more than 20 years employed by Royal Dutch Shell where he held the roles of Executive Vice President of Portfolio and Strategy, President of Shell Canada Products and President and CEO of CRI/Criterion, in addition to Director and Chairman of several Shell joint ventures.  Mr. Aldous holds a B.S. in Fuels Engineering from the University of Utah and an MBA with distinction from Northwestern University.


Director & Chairman of the Board

kevin longe

Kevin Longe
Mr. Longe became DMC's President and Chief Executive Officer on March 1, 2013. He has served as a director since joining the Company on July 17, 2012 as Chief Operating Officer. From March, 2011 until joining DMC, Mr. Longe served as an executive of Sonoco, Inc., first as President of Sonoco's Thermo Safe business from March 2011 to March 2012 and then from March 2012 to July 2012 as a Vice President and General Manager with Sonoco's Protective Packaging Division. From April 2010 until joining Sonoco, Mr. Longe was self-employed performing consulting and investment work. From 2004 through April 2010, Mr. Longe served in various positions at Lydall, Inc., most recently (2007-2010) serving as president of its subsidiary, Lydall Performance Materials, Inc. Mr. Longe is a graduate of the University of Michigan and holds an MBA with Distinction from Northwestern University's Kellogg School of Business.


President, Chief Executive Officer and Director

andrea bertone

Andrea Bertone Director

Ms. Bertone joined the DMC Board in February 2019 with more than 20 years of senior management experience. She has spent the majority of her career in the energy industry, and most recently was President of Duke Energy International LLC, a subsidiary of Houston-based Duke Energy Corp., the largest utility in the United States. Ms. Bertone spent seven years leading operations across South and Central America and reported directly to Duke Energy’s Chief Executive Officer. She previously spent nearly 10 years in a variety of senior management roles with Duke Energy. Prior to her time at Duke Energy, she was Latin America counsel with Baker & McKenzie.

Ms. Bertone is on the boards of Peabody Energy, Inc. and Yamana Gold Inc., where she also serves on their audit committees. She earned a juris doctor from the University of São Paulo, Brazil, and a LLM degree from Chicago-Kent College of Law. She is a member of the Brazilian Bar Association, and in 2013, received the Alumni of Distinction Award from Chicago-Kent College of Law. In 2016, she was recognized by the National Safety Council through its annual “CEOs Who Get It” program, as a leader who demonstrates personal commitment to worker safety and health.



yvon pierre cariou

Yvon Cariou
Mr. Cariou was appointed Director in 2006, and served as President and Chief Executive Officer from 2000 to 2013. From November 1998 to March 2000, he was President and Chief Executive Officer of Astrocosmos Metallurgical Inc., a division of Mersen Group, which designs and fabricates process equipment for the chemical and pharmaceutical industries. From 1986 to 1998, Mr. Cariou was the lead executive with five different industrial, material science and manufacturing companies. Earlier in his career, he spent 15 years with Mersen Group, a global industrial components manufacturer, where he held various executive positions in France and the United States, including President of Carbone USA Corp. Mr. Cariou is a graduate engineer from Ecole Nationale Superieure des Arts et Metiers, Paris and he obtained an M.B.A. from Fairleigh Dickinson University, Rutherford, New Jersey.



robert a. cohen

Robert A. Cohen
Mr. Cohen has served as a director since February 2011. He is the managing partner of Joranel LLC, a private investment and consulting firm serving institutional clients. Prior to joining Joranel in 2005, Mr. Cohen spent four years as president and Chief Executive Officer of Korea First Bank. Previously, Mr. Cohen spent 25 years with Credit Lyonnais, including eight years as Chief Executive Officer of Credit Lyonnais USA. He taught economics and finance for 16 years at the Paris Institut Technique de Banque et Finance and the French School of Management (ESSEC). He is a graduate of Ecole Polytechnique in Paris and earned a doctorate in finance from the University Paris Dauphine.



richard P. graff

Richard Graff

Mr. Graff has served as a director since June 2007. He is a retired partner of PricewaterhouseCoopers LLP where he served as the audit leader in the United States for the mining industry, until his retirement on December 31, 2001. Mr. Graff began his career with PricewaterhouseCoopers LLP in 1973. Since his retirement, Mr. Graff has been a consultant to the mining industry and was a member of a Financial Accounting Standards Board task force for establishing accounting and financial reporting guidance in the mining industry. He represents a consortium of international mining companies and has provided recommendations to the International Accounting Standards Board on mining industry issues and to regulators on industry disclosure requirements of securities legislation. Mr. Graff serves on the board of directors of Yamana Gold Inc. and Alacer Gold Corporation. He received his undergraduate degree in Economics from Boston College and his post-graduate degree in Accounting from Northeastern University.



peter rose

Peter Rose

Mr. Rose has served as a director since November 2016.  He is a senior advisor to Blackstone, the world's largest alternative asset manager. From 2007 to 2016, he was a senior managing director with Blackstone, and served as its global head of public affairs. Mr. Rose also spent 20 years with Goldman Sachs, where he was a managing director and held a variety of senior positions in government relations and media relations in Washington DC, New York and Hong Kong.  Mr. Rose currently is vice chairman of Sard Verbinnen, one of the leading strategic communications firms in the United States. From 1983 to 1987 he was chief of staff to Congressman Mike Synar (D-Okla) and a partner with the law firm of Williams and Jensen in Washington DC.   Mr. Rose is a graduate of the George Washington University and the Yale Law School. He serves on the national board of the NAACP, where he also was on the search committee for its current CEO.




Chairperson  Chairperson        
Member  Member Audit Committee Compensation Committee Governance and Nominating Committee Health, Safety, Security and Environment Committee

Independent Directors

 Richard P. Graff Chairperson     Member
 Robert A. Cohen   Chairperson  Member   
David Aldous Member Member    
Yvon P. Cariou    
Peter Rose   Member Chairperson  
 Andrea Bertone  Member    Member  

Non-Independent Directors

 Kevin Longe       Member


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