
China’s rejection of the new US sanctions on Iran represents a major blow to President Donald Trump’s strategy, which appears designed to place the Iranian regime before two stark alternatives: either return to negotiations and comply with Washington’s conditions, or face the prospect of regime collapse under the weight of unprecedented economic pressure.
Beijing’s announcement came only hours after the new sanctions package entered into force. China made clear that Washington is not in a position to dictate terms to others, reflecting Beijing’s willingness to defend what it considers its legitimate interests and rights as a red line that cannot be crossed.
This development opens the door to the possibility of a potentially dangerous escalation in trade and economic tensions between the world’s two largest economies — an escalation that could ultimately extend far beyond the economic sphere.
Beijing is likely to continue purchasing Iranian oil and may expand its reliance on the so-called “shadow fleet”, as well as third-country transshipment and unloading operations through countries such as Malaysia and Indonesia. Meanwhile, the US administration faces increasingly complex choices. Imposing severe and direct sanctions on major Chinese banks or entities involved in the Iranian oil trade could provoke significant Chinese commercial and economic retaliation.
This means that the issue of US secondary sanctions on Iran is no longer merely a bilateral instrument of pressure between Washington and Tehran. It may instead evolve into a major point of confrontation within the broader strategic rivalry between Washington and Beijing.
Amid this increasingly tense atmosphere between the two giants, international economic polarisation may deepen further. Such intense competition could eventually force many regional powers and developing countries to make difficult choices between the American and Chinese markets.
The sharp polarisation surrounding oil and sanctions is also likely to reduce the prospects of reaching comprehensive settlements during the anticipated high-level and presidential meetings between Washington and Beijing. The issue could evolve from a negotiating tool into a major obstacle that will be difficult to dismantle without mutual concessions — concessions that each side may view as compromising its prestige or vital interests.
Beijing is also likely to use its continued purchases of Iranian oil as a tool of pressure and negotiation ahead of the anticipated summit between the Chinese and American presidents, seeking concessions in other areas, including tariffs and technological restrictions.
For Beijing, however, the issue is not fundamentally about “saving Iran” in a political sense. Rather, it is about protecting freedom of trade and energy security and rejecting Washington’s claim to determine with whom China is permitted to conduct business. China is the largest purchaser of Iranian oil, and the broad implementation of secondary sanctions would therefore directly affect core Chinese interests.
What is particularly notable is that Beijing has spoken of taking “necessary measures” to protect its interests without simultaneously declaring an economic war against the United States. This represents a deliberate form of strategic ambiguity: a warning to Washington against crossing Chinese red lines while preserving Beijing’s retaliatory options until the actual scope and enforcement of the sanctions become clearer.
The real test will involve China’s major banks.
Sanctions targeting shipping companies or relatively small entities can, to some extent, be managed and absorbed by Beijing. However, if Washington moves against major Chinese banks or state-owned financial institutions because of their involvement in transactions related to Iranian oil, the situation would become fundamentally different.
At that point, the issue would cease to be a dispute over Iran and become a direct challenge to China’s financial system and the interests of the Chinese state itself. This is precisely why Washington appears, at least so far, cautious about reaching that stage.
In reality, Beijing does not appear to be seeking a comprehensive confrontation with the United States at this moment. Its current position does not necessarily mean that China wants to transform the Iranian issue into an open front of confrontation with Washington. China has a strong interest in maintaining stability in its trade relationship with the United States, particularly with the anticipated summit approaching in September.
More importantly, Beijing may view the sanctions as a dangerous strategic precedent.
If China accepts Washington’s ability to determine whether Chinese companies can purchase Iranian oil today, the United States could employ the same instrument tomorrow in other areas involving Russia, technology, critical minerals or trade with third countries.
For this reason, the issue is larger than Iran.
The new US sanctions are testing not only Washington’s ability to constrain the Iranian economy, but also China’s willingness to accept an expanding American economic jurisdiction over its commercial relations with third countries.
This is the real dilemma.
If Washington limits its sanctions to shipping companies and vessels connected to Iranian oil, Beijing is likely to contain the crisis. However, if the United States targets major banks, state-owned energy companies or strategic Chinese sectors, we could witness a qualitative shift — from a “dispute over Iran” to a confrontation over the rules governing the international economic order itself.
China’s message to Washington can therefore be summarised in a single sentence:
“We do not want a war, but do not test our limits.”
Accordingly, a full-scale Chinese-American confrontation does not appear to be the most likely scenario. The more probable outcome is one of calculated escalation: Chinese efforts to circumvent the sanctions, a carefully measured response from Beijing and the use of the Iranian file as a bargaining instrument within the broader bilateral relationship.
The question remains: Does China’s position represent the first nail in the coffin of US sanctions?
The answer is more complicated.
It would be inaccurate to argue that the sanctions will collapse entirely. However, Beijing’s explicit and direct rejection significantly limits the effectiveness of the strategy of “maximum pressure”.
Sanctions are most effective when they enjoy broad international support and compliance from influential states, or when other countries fear the consequences of violating them. Since China has openly declared its opposition and possesses significant tools to defend its own interests, the American objective of completely crippling the Iranian economy or forcing Tehran into submission becomes increasingly difficult to achieve in practice.
As a result, sanctions risk evolving from an instrument of decisive coercion into a condition of prolonged coexistence and strategic attrition.
The real battle, therefore, is no longer simply between Washington and Tehran. It is increasingly about whether the United States can continue to determine the limits of global economic behaviour — or whether China is now powerful enough to draw a line and say no.
Prof. Hatem Sadek, Helwan University
The post Opinion | Iran Sanctions at the Heart of the Beijing-Washington Rivalry first appeared on Dailynewsegypt.