In a significant development that has added new contours to the geopolitical landscape, the United States has further tightened its economic sanctions on Iran, targeting entities that facilitate the trade of Iranian oil. The focal point of this action has been the expansion of sanctions to include a quartet of import terminals within China that are instrumental in receiving Iranian oil cargoes. Among the newly sanctioned entities is the Zhoushan Jinrun Petroleum Transfer Co Ltd, a firm that the U.S. Department of State has singled out for its “demonstrated pattern of accepting Iranian crude oil and petroleum products, including from U.S.-designated tankers.”
The port city of Zhoushan, where Jinrun operates its terminal, occupies a strategic position within China’s petroleum industry landscape, hosting some of the largest refineries in the country. Such facilities play a critical role not only in China’s energy sector but also in the intricate web of global oil commerce.
The latest sanctions by the U.S. are part of an ongoing strategy to curb Iran’s access to international markets, with the intention of pressuring Tehran over its nuclear program, support for terrorist organizations, and activities that disrupt the flow of trade and undermine maritime navigation in vital waterways. The State Department’s statement emphasized the implications of such acts, highlighting how they “continue to enable Iran’s ability to fund its nuclear ambitions, support terrorist groups, and enable disruption of the flow of trade and freedom of navigation in waterways that are crucial to global prosperity and economic growth.”
The reach of these sanctions is global, affecting a total of 20 entities, including dark fleet operators and tankers engaged in the clandestine transport and procurement of Iranian petroleum products. This action builds upon previous measures taken earlier this year when the U.S. imposed sanctions on other Chinese oil terminals and several independent refineries, notably the so-called teapots, which have faced challenges in sourcing affordable Iranian oil since the sanctions.
The ramifications have been particularly acute in Shandong province, a hub for the independent refiners known colloquially as teapots. Anxiety over potential inclusion in the sanctions list has led some refineries to halt their procurement of Iranian crude oil altogether.
Despite these stringent measures, China remains a stalwart consumer of Iranian oil, with Tehran’s exports to the country constituting a staggering 90% of its total oil exports. In the first half of the year alone, imports from Iran to major Chinese port clusters nearly reached 1.4 million barrels per day (bpd). This oil often makes its way to China through convoluted pathways, including multiple legs from the Persian Gulf to Malaysia and then on to China through ship-to-ship (STS) transfers, frequently utilizing vessels that form part of a ‘shadow fleet’ and those blacklisted by the United States.
Notably, official customs data from China indicates no crude imports from Iran since 2022. However, the reality beneath these figures tells a different story, with China covertly purchasing nearly 90% of all Iranian crude exports through complex, multistage journeys and tanker handoffs.
This under-the-radar activity not only underscores the ongoing demand for Iranian oil despite international sanctions but also highlights the sophisticated mechanisms employed to circumvent such restrictions. It reflects the broader geopolitical chess game, where economic pressures are wielded as tools to achieve diplomatic and strategic objectives.
Understanding the longstanding tension between the U.S. and Iran helps contextualize the current sanctions. The U.S. has long viewed Iran’s nuclear ambitions with suspicion and alarm, leading to a series of sanctions aimed at curtailing the country’s ability to fund its nuclear program. The specific targeting of entities facilitating the trade of Iranian oil reflects a strategy to choke off a vital revenue stream for the Iranian government, thereby limiting its capacity to fund not just its nuclear program but also its support for various proxy groups across the Middle East.
Furthermore, the sanctions against Chinese entities involved in the importation of Iranian oil underscore the complex interplay between the U.S. and China, two global powerhouses navigating a relationship marked by competition and cooperation. The fact that China continues to be a significant buyer of Iranian oil speaks to its broader strategic interests and its commitment to securing energy resources to fuel its burgeoning economy, even in the face of potential political and diplomatic fallout.
As these dynamics continue to unfold, the international community watches closely. The fate of these sanctions, their impact on global oil markets, and the broader geopolitical repercussions remain to be seen, as the intricate dance of diplomacy, economics, and strategic interests plays out on the world stage.

