Board of Directors
Edward G. Weiner
President & Chief Executive Officer
Edward Weiner has been with the Company since 1987 and was the Chief Financial Officer from 1990 and Executive Vice President and Chief Operating Officer from 1995 to 2018. Ed graduated from the University of Miami in 1977 with a Bachelor’s degree and received a J.D. from Boston University Law School in 1980. He is also a certified public accountant (CPA).
Fred M. Lowenfels
General Counsel Emeritus
General Counsel Emeritus. Fred Lowenfels joined the company as General Counsel in 1974. Fred graduated from Harvard College in 1965 with a Bachelor’s degree and from Harvard Law School in 1968 with a J.D. He was a Fulbright Scholar in Brussels, Belgium, from 1968 to 1969.
Oliver K. Stanton
Senior Vice President
Oliver K. Stanton is a Senior Vice President and minority owner of Trammo, Inc. and a member of the Board of Directors. Oliver has been employed by the company since 1987. He graduated from Tufts University with a Bachelor’s degree in 1987.
Louis Epstein
Senior Vice President & General Counsel / Secretary
Louis Epstein joined the Company in 1992. Prior to joining Trammo he worked for the law firm Reid & Priest, specializing in international arbitration and litigation. Louis is a graduate of Columbia University and of the University of Pennsylvania Law School.
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Michel Dietlin
Head of the NH3 Division, 1982 to 2013
Michel Dietlin, a graduate from the French Business School H E C, started to work in international liquid gas trading and transportation in 1969, and joined Trammo in 1977. In 1982, Michel was appointed Head of Transammonia’s NH3 Division, a position which he held up to his retirement in July 2013.
Robert Lovett
Senior Vice President & Chief Internal Auditing Officer
Robert Lovett joined the company in 1980 and became Chief Accounting Officer in 2005. Bob graduated from Fairleigh Dickinson University with a Bachelor’s degree in accounting in 1974.He also earned a Master’s degree (MBA) in International Finance from the same university in 1984.
William E. Markstein
Senior Vice President & Chief Financial Officer
Bill Markstein joined the Company in 2003 and was the Deputy General Counsel before becoming the Chief Financial Officer in 2019. Prior to joining Trammo, Bill worked for the law firms Arnold & Porter and Bingham McCutchen, specializing in corporate and securities law, and clerked on the Delaware Chancery Court in 1993-94. He graduated from Tufts University in 1988 with a B.A. in Quantitative Economics, received a J.D from University of Pennsylvania Law School in 1993 and an LL.M in taxation from New York University Law School in 2001.
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Donald V. Madden
Senior Vice President, Chief Banking Officer & Treasurer
Don Madden joined Trammo in February 1997 as Global Credit Manager. His current responsibilities include credit and trade finance management, bank relations, global treasury operations, and other finance related activities. Don is also a member of the Risk Steering, Compliance and Investment Committees. Prior to joining Trammo, he was employed by Phibro Inc. (1996 – 1997), and Chase Manhattan Bank from (1985 – 1996). He graduated in 1983 with a B.S. degree from Trenton State College.
Vildan Bekirov
Executive Vice President, Head of the Sulphur division
Vildan Bekirov, a graduate from the Moscow Institute of Physics and Technology and Emory University's Goizueta Business School in Atlanta, GA, joined Trammo in 1996. Vildan was appointed Head of the company's Sulphur Division in 2007.
Christophe Savi
Senior Vice President and Head of the NH3 division
Christophe Savi joined Trammo in 2005 as Financial Controller, became Chief Operating Officer of the Ammonia Division in 2013 and assumed his current position in 2014. Christophe holds a Master’s Degree in Finance and Marketing from the Business and Management School, Paris XVII.
Sarah Terrell
Senior Vice President, Head of the Sulphuric Acid division
Sarah Terrell joined the Company in 2011 and became head of the Sulphuric Acid division in 2017. Prior to joining Trammo, Sarah worked in sulphuric acid, sulphur and fertilizer trading, focused on North and South America. Sarah started her career working in the copper industry, working for a large base metals mining company. She graduated from the University of British Columbia with a bachelor’s degree in Commerce in 2000.
Jeffrey D. Minnis
President, North America, Trading, Head of the Nitric Acid division
Jeffrey Minnis joined the Company in 2000 as head of North American Ammonia, following a 15-year career in petrochemicals with BP Chemicals and BOC (Linde). Jeff was named President, North American Trading in 2015 and head of the Nitric Acid division in 2018 after the Company’s acquisition of its North Bend, Ohio production facility. He is a member of the TFI’s Board of Directors and Executive Committee and serves as the Chairman of the Board for the Nutrients for Life Foundation. Jeff graduated from The Pennsylvania State University with a bachelor’s degree in Aerospace Engineering in 1983.
Timothee Bediou
Senior Vice President, Head of the Petroleum Coke division
Timothee Bediou joined Trammo in 2010 and became head of the company's Petroleum Coke Division. Prior to joining Trammo, Tim worked for a grain trading company and then at a worldwide cement producer at which he was in charge of petroleum coke procurement. He is graduate of École Supérieure d'Agriculture, Angers Loire, France in 1996 with a Master of Science in Engineering.
Corporate Management
Edward G. Weiner
President,
Chief Executive Officer
Shareholder Representative
Louis Epstein
Senior Vice President,
General Counsel / Secretary
William E. Markstein
Senior Vice President,
Chief Financial Officer
​Robert​ C. Lovett
Senior Vice President,
Chief Internal Auditing Officer​
Donald V. Madden
Senior Vice President,
Chief Banking Officer & Treasurer
Benjamin A. Tan
Senior Vice President,
Chief Information Officer
Maria Theologis
Vice President,
Global Head of Human Resources
Nicholas J. Wilson
Senior Vice President,
Chief Accounting & Chief Risk Officer
Product Management
Christophe Savi
Senior Vice President &
Board Member
Anhydrous Ammonia
