While the United States and Israel manage the immediate consequences of Iran’s succession crisis, Beijing is doing something else entirely. It is watching, calculating, and moving fast. China spent the years since its 2021 twenty-five year Comprehensive Strategic Partnership agreement with Iran building energy and economic dependencies that don’t require Khamenei to be alive — they only require a regime in Tehran that needs what Beijing can offer. A new Supreme Leader who needs legitimacy, resources, and protection is, from China’s perspective, a new Supreme Leader who needs China.
Beijing Has a Structural Advantage in Every Transition Window
China purchased approximately 80 to 90 percent of Iran’s crude oil exports before the US-Israeli strikes, making it Iran’s overwhelmingly dominant energy customer, according to Asia Times. These purchases were conducted through a shadow fleet of US-sanctioned tankers, at a discount of 10 to 20 dollars below global benchmarks, benefiting China’s independent refineries that account for roughly a quarter of national refining capacity. Iran’s economy needed this revenue stream. The new Supreme Leader’s government needs it even more.
The 2021 twenty-five year strategic partnership was the framework that formalized this dependency. It brought Iran into China’s Belt and Road Initiative and covered energy, mining, infrastructure, transportation, and agriculture. According to Reuters, Chinese state-backed firms had active projects across Iranian energy, heavy industry, steel fabrication, and power infrastructure as recently as January and February 2026 — government procurement records show contracts issued just weeks before Khamenei’s death. China did not pull back when the airstrikes began. It continued writing contracts.
This is deliberate. Brookings noted in its 2026 analysis that China’s strategic goals in Iran focus on three things: protecting stability, ensuring continued oil access, and preventing a pro-American government in Tehran. A new Supreme Leader — particularly one installed under wartime conditions, lacking independent legitimacy, and dependent on the IRGC for political survival — ticks all three boxes. Beijing doesn’t need Mojtaba Khamenei to be a friend of China. It needs him to be dependent on the economic relationship China provides.
The Military Dimension Is Accelerating
The energy relationship is the visible layer. The military relationship is where Beijing is moving fastest during the transition window. Reuters reported in February 2026 that Iran was nearing completion of a deal to purchase Chinese CM-302 supersonic anti-ship cruise missiles — weapons with a 290-kilometre range designed to fly low and fast to evade naval defenses. Negotiations began at least two years earlier, but accelerated sharply after the June 2025 Israel-Iran war. Senior Iranian military and defense officials traveled to China multiple times as the succession crisis unfolded.
The strategic logic from Beijing’s perspective is straightforward. Iran’s military has been significantly degraded by US-Israeli strikes. A militarily weakened Iran that is forced to rebuild its capabilities must source those capabilities from somewhere — and China is the only major arms supplier willing to sell to Tehran under current conditions. Every weapons deal concluded during the transition window deepens Iran’s dependence on Chinese supply chains, maintenance protocols, and spare parts. That is not an incidental side effect. It is the mechanism by which China converts Iran’s crisis into Chinese strategic depth.
As Brussels Morning reported, China is using this moment to position itself as Iran’s indispensable security partner — not because Beijing wants to fight Iran’s wars, but because it wants to be the supplier those wars cannot be fought without.
Western Powers Are Losing the Recalibration Race
The conventional Western analysis of Iran’s succession focuses on whether a new Supreme Leader creates an opportunity for diplomatic engagement. While that question is being debated in Washington and Brussels, China is already acting. Foreign Policy noted that Beijing’s approach is primarily pragmatic: it prioritizes protecting its own economic, energy, and technological interests over any ideological alignment with Tehran. China condemned the US-Israeli strikes as unacceptable, maintained relative diplomatic restraint, and continued doing business.
This is not fence-sitting. It is a calculated strategy of maximum positioning during a power vacuum. Xi Jinping’s last official visit to Iran was in 2016 — China deliberately kept the relationship at a functional rather than symbolic level until now. The transition window changes that calculus. A new regime that needs to demonstrate it has powerful friends, that has lost significant military capacity, and that is under ongoing military pressure from Israel and the United States is exactly the kind of partner that would welcome a more visible Chinese embrace.
What This Actually Means
Iran’s leadership transition is not just a story about the Middle East. It is a story about the global competition for strategic influence. Every week that the West debates whether to engage with Iran’s new leadership is a week that China spends locking in energy contracts, finalizing weapons deals, and deepening the dependencies that will define Iran’s strategic alignment for the next decade.
Beijing will move to deepen ties with whoever holds Iran’s top seat — not because China loves the Islamic Republic, but because an Iran that depends on Chinese oil purchases, Chinese weapons, and Chinese diplomatic cover is an Iran that will not align with the United States regardless of what Washington offers. News.az and CNN reported the selection of a new Supreme Leader as a story about Iran’s internal politics. The more important story — tracked by Reuters, Brookings, and Asia Times — is the Chinese officials who were already dialing Tehran before the succession announcement was made.
Sources
- Asia Times — Post-Khamenei Turmoil Puts China’s Energy Security at Risk
- Reuters — Iran Nears Deal to Buy Supersonic Missiles from China
- Brookings — How China Is Positioning Itself as Iran’s Regime Teeters
- Foreign Policy — Will China Defend Iran?
- Modern Diplomacy — How China Is Securing Its Alliance with Iran’s New Power Structure
- Reuters — Uncertainty Faces China Inc’s Projects in Iran
- news.az — Iran Selected a New Supreme Leader