Beijing will work further on protecting the Iranian nuclear deal after Washington's withdrawal from the multilateral agreement, Chinese Foreign Minister Wang Yi said on Sunday.
Against withdrawal from the agreement made by the leading European Union countries and Russian Federation.
The 2015 agreement "is delivering on its goal, which is guaranteeing that Iran doesn't develop nuclear weapons, the European Union is determined to preserve it", Mogherini said, warning that she was "particularly worried" by the USA announcement of fresh sanctions.
Trump also said he would reinstate United States nuclear sanctions on Iran and impose "the highest level" of economic bans on the Islamic Republic.
US President Donald Trump said the deal was "horrible" because of expiry dates on its restrictions and because it did not cover Iran's ballistic missile programme or its regional influence.
"Now we want to make sure that the Iranian nation can reap the benefits of the deal if it decides to remain in the accord as recommended by the remaining sides of the JCPOA", he said.
Zarif made the remarks while speaking to reporters upon arrival at Beijing International Airport on Sunday morning.
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Park director Emmanuel de Merode said: "Ranger Baraka's life was tragically cut short in service to Virunga National Park". It was the deadliest attack in recent years and took the total number of rangers killed in the park to 175.
"It's really annoying that the Iranian government is never blamed for the really bad decisions they have taken lately concerning business, and only the sanctions are blamed", she said.
After their meeting, Zarif and Wang hailed the "comprehensive strategic partnership" between their countries, with the Chinese minister saying: "I hope and believe that these visits to multiple countries will. help protect Iran's legitimate national interests and peace and stability in the region".
Foreign Ministry spokesman Geng Shuang said Wednesday that China would "carry on the normal and transparent pragmatic cooperation with Iran".
Before leaving, Zarif published a government statement on his Twitter page, slamming Trump's "extremist administration" for abandoning "an accord recognised as a victory of diplomacy by the global community".
"Iran's Military Budget is up more than 40 percent since the Obama negotiated Nuclear Deal was reached. just another indicator that it was all a big lie", he wrote.
Trump has said that he would reinstate US nuclear sanctions on Iran and impose "the highest level" of economic bans on the Islamic Republic.
Iranian Supreme Leader Ayatollah Ali Khamenei said last week he is highly doubtful that Europe will provide the "real guarantees" needed for Iran to stay in the nuclear deal.