The US-China Summit Affects Hormuz: Xi Jinping Willing to Mediate the Iran War, Tehran Selectively Allows Chinese Ships to Pass

Author: Ahmed Al-Rashid (Middle East analyst)｜Type: Breaking analysis｜Importance: ⭐⭐⭐⭐⭐

Summary: On May 14, during a meeting with Xi Jinping in Beijing, Trump stated that Xi proposed China was willing to help mediate an end to the Iran war and promote the reopening of the Strait of Hormuz; Trump also mentioned that Xi assured him China would not provide military equipment to Iran. AP also reported that Xi warned in a closed-door meeting that if the Taiwan issue is not handled properly, it could lead to conflict between China and the U.S. Al Jazeera reported simultaneously that Iran has allowed dozens of vessels, including all/relevant Chinese ships, to pass through the Strait of Hormuz according to the "protocols" set by Iran.

Key Facts

• The U.S.-China summit places Middle Eastern issues at the core agenda. AP live updates on May 14 reported that Trump stated Xi told him China was willing to help negotiate an end to the Iran war and promote the reopening of the Strait of Hormuz; the White House stated that both countries agreed the strait must remain open to support the free flow of energy.
• China's role shifts from energy buyer to potential mediator. AP pointed out that China is one of the largest buyers of Iranian oil, and Trump hopes Xi will use this leverage to persuade Iran to accept U.S. conditions. Al Jazeera also quoted U.S. Treasury Secretary Mnuchin stating that Beijing has its own interests in promoting the opening of the waterway.
• Iran begins to shape a selective passage mechanism. Al Jazeera reported that the Iranian Revolutionary Guard/Iranian media stated that about 30 vessels have passed since Wednesday night, including Chinese-related ships; Iran requires vessels to submit information in advance regarding cargo, ownership, destination, route, and passage time, and to wait for permission from the so-called "Persian Gulf Strait Management Authority."
• The security environment continues to deteriorate. AP reported that on the same day, a ship near Fujairah, UAE, was seized by "unauthorized personnel" and headed towards Iranian waters, while another Indian-flagged wooden cargo ship sank after being attacked by suspected drones or missiles in Omani waters; Al Jazeera stated that the U.S. Central Command reported it has redirected 70 commercial vessels and disabled 4 to enforce Trump's blockade on ships traveling to and from Iranian ports.
• The Taiwan issue is brought into the same crisis management framework. AP reported that Xi warned Trump in a closed-door meeting that if the Taiwan issue is not handled properly, U.S.-China relations could slide into conflict; Trump had previously authorized arms sales to Taiwan but has not yet advanced delivery, and Secretary of State Rubio warned that a Chinese military takeover of Taiwan would be a "terrible mistake."

Analysis and Judgment

1. China's willingness to mediate primarily serves energy security rather than mere diplomatic posturing. If Beijing can facilitate a limited ceasefire or at least restore commercial shipping through the Strait of Hormuz, it will directly reduce risks associated with energy imports, oil price pressures, and supply chain shocks. For Washington, China's involvement could become leverage to force Iran to accept a ceasefire framework; but for Beijing, the best outcome is "open waterways, de-escalation of war, and the U.S. not monopolizing rule-making."

2. Iran's selective release of Chinese vessels is forming a de facto shipping hierarchy. Tehran is not simply closing the strait but is attempting to turn "passage permits" into a political tool: friendly or negotiable parties can gain passage, while hostile vessels or those affected by U.S. blockades are blocked, seized, or forced to reroute. This will increase the complexity of insurance, compliance, and vessel registration/ownership structures, and may also trigger gray operations involving sanctions evasion and "flag-changing—ownership-changing—declaration path-changing."

3. The Taiwan issue couples crisis management in the Middle East and Indo-Pacific. If the U.S. and China need to cooperate on the Iran issue, arms sales to Taiwan and military exercises in the Taiwan Strait may become variables for Beijing to assess the depth of cooperation; conversely, if tensions in the Taiwan Strait escalate, Washington's trust in China's mediation in Iran will quickly decline. The U.S. and China are attempting to bind Middle Eastern de-escalation with bilateral stability, but this also means that any misjudgment on one front could spill over to the other.

Follow-up Observation Indicators

• Whether the Chinese Ministry of Foreign Affairs formally confirms Xi's commitment to mediate regarding the Iran war and the Strait of Hormuz;
• Whether Iran's so-called passage "protocols" become institutionalized and whether they expand to Asian buyers beyond China;
• Whether the U.S. relaxes or adjusts interception rules for vessels passing through the Strait of Hormuz;
• Whether tanker AIS, insurance rates, and VLCC rerouting ratios indicate that "selective opening" has become the new normal;
• Whether the pace of U.S.-Taiwan arms sales delivery is delayed or accelerated due to subsequent negotiations after the Beijing summit.

Conclusion: This is not a singular strait crisis, but a triangular pressure test: Iran uses the Strait of Hormuz to prove it still holds an energy chokepoint, China leverages energy demand and influence over Iran to seek a mediator position, while the U.S. attempts to open a ceasefire channel without relinquishing military pressure on Iran. In the short term, the Strait of Hormuz may see a layered order of "limited opening for China and some approved vessels, while maintaining high risks for U.S.-related shipping."

Sources

• Associated Press live updates, 2026-05-14: “Trump says China’s Xi offered to help broker peace with Iran”; “China wants to help negotiate an end to the war and reopening of Strait of Hormuz”; “Xi warned about Taiwan conflict”; “Trump says Xi assured China would not provide Iran military equipment.”
• Associated Press, 2026-05-14: “China’s Xi warns Trump that differences over Taiwan could lead to conflict.”
• Associated Press, 2026-05-14: “Tensions flare near Strait of Hormuz as a ship is seized and another is sunk.”
• Al Jazeera, 2026-05-14: “Trump, Xi discuss Strait of Hormuz as Chinese vessels transit key waterway”; liveblog note on IRGC allowing dozens of vessels including Chinese-owned vessels under Iran protocols.