P. O.B o x10 2 8| Ne wYo rk,N Y10 18 5-10 2 8| (2 12 )9 2 20 0 6 3

P. O.B o x10 2 8| Ne wYo rk,N Y10 18 5-10 2 8| (2 12 )9 2 20 0 6 3 March 30, 2016 Mr. Xavier Huillard Chairman and CEO VINCI Group 1 cours Ferdinand de Lesseps F-92851 Rueil-Malmaison Cedex France Mr. Benoît Lecinq Chairman and CEO Entrepose Group 165 boulevard de Valmy 92700 Colombes France Re: VINCIGroup and Iran Dear Mr. Huillard and Mr. Lecinq: United Against Nuclear Iran (“UANI”) is a leading not-for-profit, non-partisan, advocacy organization whose mission is to promote the cessation of economic and financial support of the Islamic Republic of Iran by corporations and business until the Iranian regime verifiably abandons its drive for nuclear weapons, support for terrorism, and human rights violations. (http://www.unitedagainstnucleariran.com). “UANI” is writing in response to reports that Entrepose Group (“Entrepose”), a subsidiary of VINCI Group (“Vinci”), “is re-entering the Iranian market following “Implementation Day” of the Joint Comprehensive Plan of Action (“JCPOA”).Notwithstanding the terms of the JCPOA, there remain serious legal, political, financial, and reputational risks associated with doing business in Iran, particularly in sectors of the Iranian economy such as oil and gas that are dominated by the Islamic Revolutionary Guard Corps (“IRGC”), which remains sanctioned by the U.S. Government and the international community of nations as a terrorist organization.