Is China the biggest winner of the Iran War? 

As Washington expends vast military and political capital in the Middle East, stretching supply lines, straining alliances, and entangling itself in an open-ended confrontation with Iran, it is clear that neither parties to the conflict are outright victors. 

The true winner is likely further eastwards, a nation that is not involved in the war: China. 

US President Donald Trump declared on 15 April 2026, "China is very happy that I am permanently opening the Strait of Hormuz… They have agreed not to send weapons to Iran." 

It was a characteristically confident assertion that suggested Trump's confidence in having control over both the Iran War and Beijing's strategic calculations. 

Yet, as with much of the current conflict, the reality on the ground appears far more complex. Shipping through the Strait remains disrupted, Iranian leverage over maritime trade is intact, and there is little verifiable evidence that China has meaningfully distanced itself from Tehran.

While Western economies grapple with price volatility and supply uncertainty, China has managed to secure cheaper energy inputs. Iranian oil, heavily discounted due to sanctions and wartime risk, has continued flowing, albeit through opaque channels, into Chinese markets. In effect, the war has deepened an already symbiotic relationship: Tehran gains a crucial economic lifeline, while Beijing locks in favourable energy terms.

If anything, the war has exposed a widening gap between American political messaging and shifting geopolitical realities — many of which appear to favour Beijing.

The Iran War, initially framed by Washington as a limited operation to degrade Tehran's military and nuclear capabilities, has instead triggered a broader systemic shock which many analysts think has spiraled out of control. Energy markets have been destabilised, global supply chains rerouted, and regional alliances strained. 

Within this turbulence, China has not been a passive observer. Rather, it has quietly positioned itself to absorb shocks, exploit structural vulnerabilities in the Western-led order, and expand its influence across both energy and security domains.

China's supply shock absorbed by 'teapot' refineries 

China remains the world's largest importer of crude oil, with roughly 40-45% of its imports historically passing through the Strait of Hormuz. 

The country was already purchasing roughly 90% of Iran's oil exports (over $8 billion annually) before the war. Once it started, the Strait became a pricing node for the petroyuan. 

Moreover, China's diversified procurement strategy, combined with its network of "teapot" refineries, has cushioned the blow. 

These independent refineries, often operating on the margins of global compliance regulations, have continued processing discounted Iranian crude, effectively bypassing sanctions while stabilising domestic supply.

This dynamic has created a paradox. While Western economies grapple with price volatility and supply uncertainty, China has managed to secure cheaper energy inputs. Iranian oil, heavily discounted due to sanctions and wartime risk, has continued flowing, albeit through opaque channels, into Chinese markets. 

In effect, the war has deepened an already symbiotic relationship: Tehran gains a crucial economic lifeline, while Beijing locks in favourable energy terms.

The slow erosion of the petrodollar 

Beyond energy, the conflict is accelerating a more profound structural shift in the way of the gradual erosion of the petrodollar system. For decades, global oil trade has been overwhelmingly denominated in US dollars, reinforcing American financial dominance. 

However, as sanctions proliferate and geopolitical tensions rise, alternative settlement mechanisms are gaining traction. China has been at the forefront of this transition, promoting yuan-denominated trade and expanding bilateral currency arrangements with key partners.

The Iran War has added momentum to this trend. With Iran largely excluded from the dollar-based financial system, transactions increasingly rely on non-dollar channels, many of which intersect with Chinese financial networks. 

While the scale of this shift remains limited, its trajectory is clear. Each incremental move away from dollar dominance, however small, chips at the foundations of US economic hegemony.

Military co-operations and diplomatic gains for China

Even though Donald Trump claimed victory regarding arms transfer between China and Iran, the military implications are more nuanced. 

On one hand, the United States has demonstrated an extraordinary capacity for force projection. 

The deployment of tens of thousands of troops, advanced air assets, and carrier strike groups shows Washington's continued primacy in conventional warfare. For Beijing, this is a sobering reminder of the risks inherent in direct confrontation. The Iran War has effectively served as a live demonstration of American military reach — one that Chinese strategists are undoubtedly studying closely.

One of the most critical areas has been intelligence and surveillance. Reports indicate that Iranian forces accessed Chinese commercial satellite systems to track US military positions across the Gulf. These satellite feeds — originally civilian — were reportedly used to map targets such as air bases and naval assets, improving the precision of Iranian missile and drone strikes. 

Beyond surveillance, China has also played a role in sustaining Iran's military hardware. Analysts suggest that Beijing has supplied spare parts, technical components, and possibly dual-use technologies that help maintain missile systems, drones, and air defence networks. 

Some reports suggest Chinese entities have considered or facilitated the transfer of air defence systems and anti-ship missile technologies designed to counter US naval dominance in the Gulf. Even the prospect of such transfers has strategic weight, as it complicates US planning and raises the cost of escalation.

At the same time, the Iran war has subtly but significantly reshaped cross-strait dynamics between China and Taiwan. With US military assets diverted to the Middle East, Beijing has increased air and naval pressure around Taiwan, testing responses and exploiting strategic distraction. 

All is not well for China yet 

At the same time, the limitations of Chinese influence should not be overstated. Beijing's reluctance to take on a more active security role reflects both capability constraints and strategic caution. 

Unlike the United States, China lacks a network of military bases and alliances in the Middle East. Its influence remains primarily economic, and its ability to shape outcomes on the ground is correspondingly limited.

There are also significant risks for China. Prolonged instability in the Middle East threatens the very trade routes upon which its economy depends. While diversification strategies have mitigated immediate shocks, a sustained disruption of maritime flows, particularly through both the Strait of Hormuz and the Bab-el-Mandeb, would have cascading effects on global commerce. For an export-driven economy, such disruptions are far from trivial.

Moreover, the war risks entangling China in geopolitical dynamics it would prefer to avoid. Deepening ties with Iran, while economically advantageous, could strain relations with Gulf states and Western partners. Balancing these competing interests will require careful calibration — particularly as the conflict evolves.

In many ways, the divergence between rhetoric and reality encapsulates the broader dynamics of the Iran War. Political narratives, whether in Washington, Tehran, or elsewhere, often serve immediate strategic purposes, but they do not necessarily reflect underlying structural trends. 

China is not merely reacting to the war; it is adapting to it, learning from it, and, in many respects, quietly benefiting from it. 

Whether those gains prove durable, however, will depend not only on the outcome of the conflict but also on how effectively Beijing manages the risks that come with them.

Shadique Mahbub Islam is a journalist.