On May 10, Iran’s ambassador to China, Abdolreza Rahmani Fazli, said Beijing could serve as the guarantor of a future deal between Iran and major world powers. He added that any agreement should ultimately be endorsed by the UN Security Council, echoing Tehran’s long-standing preference for multilateral guarantees over bilateral commitments.
A day later, Rahmani Fazli wrote on X that Iran was prepared to support President Xi Jinping’s four-point proposal for “sustainable security” in the Persian Gulf, adding that the position had already been affirmed during recent talks between the two countries’ foreign ministers.
China’s approach to emphasizes mutual guarantees among regional states, with Beijing presenting itself as a mediator and economic stabilizer rather than a military enforcer.
In mid-April, Xi introduced a four-point proposal aimed at moving the region away from the brink of wider war toward what Chinese officials described as a “comprehensive and sustainable security architecture.”
The proposal called for peaceful coexistence among regional powers, respect for sovereignty, adherence to international law and the UN Charter, and balancing security with economic development and reconstruction.
Chinese diplomacy surrounding the Iran crisis has increasingly been framed in Tehran as an alternative to Washington’s military-first approach.
Iranian media and officials have portrayed Beijing as a power capable of maintaining relations with all sides while avoiding direct military involvement.
Tehran and Beijing have both linked these initiatives to their expanding strategic partnership, which Iranian officials increasingly describe as a counterweight to US influence in the region.
Donald Trump’s upcoming visit to China has added new significance to that relationship as ceasefire tensions persist and negotiations remain stalled.
Hossein Mousavian, Iran’s former ambassador to Germany, recently reiterated that security guarantees remain one of Tehran’s central demands in any negotiations with Washington.
Iranian commentators argue that while Tehran does not trust the Trump administration to uphold a purely bilateral agreement, Chinese involvement could provide a framework both sides may find harder to abandon.
Still, major obstacles remain.
Trump has repeatedly rejected any agreement resembling the 2015 nuclear deal, arguing that it failed to protect US interests. Iran, meanwhile, continues to push for a broader truce framework without first resolving disputes over its nuclear program, a position unlikely to gain traction in Washington.
Tensions escalated further on May 12, when Parliament Speaker Mohammad Bagher Ghalibaf said Iran was prepared for war if Trump rejected Tehran’s terms. The same day, Trump said military options remained on the table.
Against that backdrop, Beijing has increasingly signaled that its immediate priority is preventing further disruption in the Persian Gulf and ensuring safe navigation through the Strait of Hormuz, a critical artery for global energy markets.
For Tehran, China’s growing diplomatic role offers more than mediation. It represents the possibility of a powerful external guarantor at a time when trust between Iran and the United States appears close to collapse.