West Asia War: US’ new sanction on a mega Chinese refiner can shake the world’s supply chains — and it’s bigger than oil
According to Bloomberg, this development will be reflected far beyond the oil market and is expected to deal a new blow to the already tense petrochemical industry, triggering ripple effects in global supply chains.
The US Treasury Department blacklisted Hengli Petrochemical’s Dalian refinery on Friday; this was one of Washington’s most assertive actions yet against China’s refining industry.
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Hengli is part of a group of so-called “mega” private refineries in China, alongside companies such as Zhejiang Petrochemical and Shenghong Group.
Together, these large-scale operators account for a significant portion of the country’s refining capacity, reflecting Beijing’s push for consolidation and efficiency in the sector.
Following the announcement, shares of Hengli Petrochemical Co., which includes the Dalian refinery, lost 10% of their value on Monday, the maximum daily limit, highlighting investors’ concerns about increasing geopolitical and economic risks, Bloomberg reported. Although it comes just weeks before an expected key meeting between US President Donald Trump and Chinese President Xi Jinping, the US blacklisting further reveals the mounting pressure on Tehran.
Strategic leverage?
Analysts see this move as part of a broader geopolitical strategy.
In his statement to Bloomberg, Liao Na from GL Consulting pointed out that limited progress has been made in the tensions around Iran and the Strait of Hormuz, and said, “With Trump visiting Beijing in May, this looks more like a bargaining chip used by Washington.”
Moreover, sanctions represent a worrying increase.
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So far, U.S. efforts to restrict Iran’s oil revenues have largely focused on small Chinese refineries.
Hengli, by contrast, is among the most advanced private sector players, operating a large refinery and petrochemical complex in Liaoning province.
China remains the largest buyer of Iranian crude oil; much of this is routed indirectly through private refineries and processed into fuels and petrochemical products.
However, such transactions are not reflected in official customs data and no shipments have been recorded in recent years.
According to the Bloomberg report, Hengli denied the allegations in a filing to the stock exchange, calling them “baseless” and maintaining that he was never involved in Iranian oil trading.
The company added that its crude oil suppliers are committed to complying with US sanctions and maintain sufficient stocks for more than three months of operations.
The petro giant also said it plans to pay for future purchases in yuan, Bloomberg reported.
Meanwhile, Beijing has pushed back strongly.
Foreign Ministry spokesman Lin Jian criticized what he called “abuse of sanctions” and promised to protect the interests of Chinese companies.
Supply chain disruptions and negative market impacts
The impact of the sanctions is already being felt across Asia.
Underscoring immediate disruptions to supply chains, at least two of Hengli’s petrochemical customers have canceled orders, people familiar with the matter told Bloomberg.
Industry experts warn that the impacts could be far-reaching.
Hengli is a major producer of purified terephthalic acid and a major supplier to various industries from textiles to plastics.
Its exclusion from the dollar-based financial system threatens to disrupt supplies to hundreds of downstream producers in East Asia.
In addition, broader consequences could include rising costs and inflationary pressures, particularly given ongoing tensions in West Asia.
