In May, U.S. President Donald Trump pulled out of the deal under which sanctions on Iran were lifted in return for curbs to its nuclear program.
Iran's remaining partners in the JCPOA vowed on Friday to keep the energy exporter plugged into the global economy.
While the other signatories have vowed to stay in the accord, dozens of European, Russian, and Asian companies have announced plans to pull out of Iran for fear of incurring US penalties when sanctions are reimposed in November.
Araghchi called allegations against the diplomat a "plot aimed at damaging EU-Iran relations" ahead of a nuclear meeting on Friday.
Speaking on July 6, French Foreign Minister Jean-Yves Le Drian said it was unlikely European powers would be able to put together an economic package for Iran that would salvage its nuclear deal before November and warned Tehran to stop threatening to break its commitments to the accord.
Foreign ministers from three European nations along with Russian Federation and China agreed on an 11-point list of joint goals, saying they remained committed to the nuclear accord and to building up economic relations with Iran, including "the continuation of Iran's export of oil and gas" and other energy products.
It has been putting pressure on its allies ever since, seeking in particular to make them reduce oil imports from Iran.
"We are trying to do it before sanctions are imposed at the start of August and then another set of sanctions in November".
Iran's Revolutionary Guards said this week that the country would prevent any oil from being exported through the Strait of Hormuz, a shipping lane between Iran and Oman.
However, during a phone conversation with French President Emmanuel Macron on Thursday, Rouhani said that the package proposed by European Union leaders "does not meet all our demands", and demanded a "clear action plan from Europe with a timetable so it can compensate for the United States exit from the deal".
Speaking after three hours of talks, European Union foreign policy chief Federica Mogherini, who chaired the talks, read a statement from the six delegations repeating previously-announced broad priorities ranging from guaranteeing Iranian oil revenue to shipping ties, banking and all other trade and investment co-operation.
"I am sure that we will send a united, determined and strong signal and confirm that we as treaty members will hold on to the deal", Wang said, Press TV reported. Even though Iran's Foreign Minister Mohammad Javad Zarif said that the U.S. actions "de-facto disrupted the agreement", thus giving Iran a right to withdraw from it as well, the Islamic Republic would not exercise this right, according to Lavrov.
Meanwhile, Iran's representative to the Organization of Petroleum Exporting Countries, or OPEC, blamed Trump for rising oil prices, claiming that the president's rhetoric could force oil prices to rise to $100 per barrel.
The large rally last Saturday attracted several U.S. politicians, including former NY mayor Rudy Giuliani, now Trump's personal lawyer.