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Demetrios Marantis
Senior Vice President, Global Government Engagement, Visa Inc., USA

Ambassador Demetrios Marantis serves as Senior Vice President, Global Government Engagement,  leading Visa’s global government engagement team and is responsible for partnering with government  officials around the world to advance policies that foster the growth of electronic payments.  

Ambassador Marantis joined Visa from Square, where he led global policy, government, and regulatory  affairs. Prior to joining Square in May 2013, Marantis served as Acting United States Trade  Representative and Deputy United States Trade Representative. Marantis was nominated for his  position by President Barack Obama and confirmed by the U.S. Senate on May 6, 2009. As Deputy  United States Trade Representative, he was responsible for U.S. trade negotiations and enforcement in  Asia and Africa, including the TransPacific Partnership (TPP), the Asia Pacific Economic Cooperation  (APEC) Forum, the U.S.-China Joint Commission on Commerce and Trade (JCCT), the U.S.-India Trade  Policy Forum, and Trade and Investment Framework Agreements with countries ranging from South  Africa to the Philippines. He played a central role in the negotiation and congressional passage of the  U.S.-Korea trade agreement and spearheaded conclusion in APEC of the first ever agreement to reduce  tariffs on environmental goods. 

Before the Obama Administration, Marantis served as Chief International Trade Counsel for the Senate  Finance Committee. In this capacity, he advised then Finance Committee Chairman Max Baucus, as well  as members and staff of the Finance Committee and Democratic Caucus, on trade and economic issues.  He joined the committee in February 2005 after serving as Issues Director on the Kerry-Edwards 2004  presidential campaign. Marantis spent 2002 through 2004 in Hanoi as Chief Legal Advisor for the U.S.- Vietnam Trade Council where he provided technical assistance on international trade matters. Between  1998 and 2002, he served as Associate General Counsel in the Office of the U.S. Trade Representative  where he negotiated provisions of international trade agreements and represented the United States in  WTO dispute settlement proceedings. He also worked for five years in the Washington, D.C. and  Brussels, Belgium offices of Akin, Gump, Strauss, Hauer & Feld. 

Marantis holds a J.D. from Harvard Law School and an A.B. in Public and International Affairs from  Princeton University.