FNA- The fourth Europe-Iran Forum (EIF) focusing on post-sanctions investment and trade will be held on Tuesday (October 3) in the Northcentral Swiss city of Zurich.

The two-day EIF4 will be the first to be held in the tenure of Donald Trump who was elected as US president on Nov 8, 2016.

The Europeans have expressed their unanimous support for the international agreement and welcomed Tehran's return to the financial markets and trade and banking activities despite the lack of commitment shown by the US to the July 2015 nuclear deal, known as the Joint Comprehensive Plan of Action (JCPOA).

The first, second and third EIF were held in October 2014 in Britain's London, September 2015 in Austria's Geneva and May 2016 in Switzerland's Zurich, respectively.

The presence of the Secretary General of the European External Action Service (EEAS) Helga Schmid and a number of European ambassadors to Iran in the EIF4 is another "clear message" to Trump administration that all sides have to be loyal to the JCPOA and its implementation.

Analysts believe that EIF4, which is to be held just less than two weeks after Austria's Oberbank and Denmark's Danske Bank signed banking agreements with Iran, will prepare good grounds for the European companies to further cooperate with Iran.

In relevant remarks in late September, Iran's President Hassan Rouhani underlined the necessity for the European governments to provide their banks and insurance companies with guarantees for cooperation with Tehran, adding that the Iranian companies should also enjoy the benefits of the nuclear deal.

"The European leaders should provide banks and insurance companies with guarantees and assurance on financial cooperation (with Iran) and our nations and companies as well as the region should enjoy the benefits of the nuclear deal," Rouhani said in a meeting with Italian Prime Minister Matteo Renzi on the sidelines of the UN General Assembly meeting in New York.

Renzi, for his part, underscored that Rome seeks strengthening of all-out ties with Tehran, and said, "We are ready for any measure to bolster economic relations."

"On banking relations, the governmental Sace insurance company (Italian Export Credit Agency) is ready to provide the necessary assurances," he added.