While South Korea has halted imports from Iran and reports in India indicate it may also bow to the USA campaign, Washington's entreaties to Beijing have proved fruitless, two unnamed officials told Bloomberg.
Beijing, however, agreed not to increase purchases of Iran's crude, the officials, who spoke on condition of anonymity told Bloomberg on Friday.
But US President Donald Trump made a decision to reimpose punishing sanctions against Iran, whom he has accused of posing a security threat.
Remaining sanctions ncluding on Iran's oil and gas sector and central bank will resume on November 5.
Washington also imposed a series of additional sanctions on Iranian entities and individuals, as well as foreign companies in Iran, squeezing Iran economically.
Washington has told countries they must halt all imports of Iranian oil from 4 November or face United States financial measures.
It also said the USA military was concerned about Iran's ability to disrupt shipping lanes and cut off the Strait of Hormuz, a critical waterway through which millions of barrels of oil pass on day-to-day basis.
"China always holds the view that JCPOA is a multilateral deal which is verified and approved by the United Nations Security Council and accords the common interests of all parties and the worldwide community, which must be respected and safeguarded so as to maintain the authority of the United Nations, the effectiveness of multilateral deals and the credibility of the global rules", he was quoted by the official Xinhua News Agency as saying.More news: Maurizio Sarri: 'Chelsea only need one more player'
Teams of US officials have been visiting capitals around the world to try to choke off sales of Iranian oil by early November, when USA sanctions are due to snap back into effect.
President Donald Trump of the United States of America had also informed that he is willing to meet with Rouhani over Tehran's oil ban without preconditions.
"The Americans say they want to reduce Iranian oil exports to zero ..." -Chinese trade relations. The Trump administration this week said it would increase tariffs on China from 10 percent to 25 percent, prompting Beijing to say it wouldn't be persuaded by economic blackmail.
When pressed by CNBC to answer the questions she was raising, Croft replied, "I think this market will tighten at the end of this year", and added that Venezuelan production continues to fall and will be a contributing factor.
Under such circumstances negotiations can not be held, he said, adding that the Iranian people will resist the pressures and will conquer finally.
Last month, Iran's Supreme Leader Ayatollah Ali Khamenei backed President Hassan Rouhani's suggestion that Iran may block Gulf oil exports if its own exports are stopped.
Last month around 35 percent of Iranian oil exports went to China.