China Determined to Uphold Mutual Relations

China is fully committed to the Joint Comprehensive Plan of Action on Iran’s nuclear program, a Chinese delegate said after a three-hour meeting of Iran, Russia, China, Britain, France and Germany in Vienna, Austria, on Friday.
Fu Cong, director general of the Department of Arms Control of the Chinese Foreign Ministry, stressed that China categorically rejects US "zero-tolerance policy" on Iran oil sales, and is willing to do everything it can to maintain legitimate economic and trade relations with the country and safeguard economic interests of Chinese companies, Xinhua reported.
“China will also go forward at full speed with respect to the Arak nuclear reactor project,” he said. 
The Chinese-led initiative to redesign Iranian heavy water reactor in Arak is aimed at minimizing its plutonium production.
During the meeting, Iran sent a "clear and loud" message that it will stay in its nuclear agreement with world powers, Fu said.
Delegates expressed sympathies over Iran’s situation and condemned US unilateral withdrawal from the agreement, he said, adding that the "maximum pressure" against Iran is the root cause of all tensions surrounding the issue.
INSTEX, a financial instrument designed to help European companies trade with Iran while avoiding US sanctions, is finally "operational", Fu said. 
And it was agreed in Friday's meeting that working groups will be set up to explore how to deal with the excess of low-grade uranium production by Iran.
US President Donald Trump decided last year to pull the United States out of the 2015 multinational accord and reimposed sanctions against Iran while Iran has started scaling back parts of the agreement.
In May, Iran announced that it would begin accumulating more low-enriched uranium, but it has not yet followed through the decision that it would exceed the deal's cap on stockpiles of the material.
“Russia and the three EU countries have urged Iran to fully comply with the JCPOA,” Fu said.