The Brief – EU sanctions on Iran

The European Union has recently expanded its restrictive measures against Iran, specifically targeting individuals and entities involved in disrupting freedom of navigation in the Strait of Hormuz. This development, approved by EU countries, marks a significant application of an amended sanctions framework, initially established for Iran's military support to Russia and subsequently broadened. The new designations include the Hormozgan Provincial Command of the Islamic Revolutionary Guard Corps Navy (IRGCN), Mohammad Akbarzadeh, and Hamid Hosseini, who are accused of implementing a de facto toll system and threatening commercial vessels. These sanctions, comprising asset freezes and travel bans, underscore the EU's commitment to upholding international maritime law and ensuring the unimpeded passage of vessels through this critical global chokepoint.

The European Union has taken decisive action to address the escalating threats to maritime security in the Strait of Hormuz, approving new sanctions against Iranian individuals and entities deemed responsible for impeding lawful transit. This move represents a critical development in the EU's broader foreign policy, signaling a firm stance against actions that undermine international law and global trade. The Strait of Hormuz, a vital waterway for a significant portion of the world's oil and liquefied natural gas (LNG) supplies, has recently experienced increased disruptions, prompting the EU to expand its existing restrictive measures against Tehran.

These newly adopted sanctions are not a standalone regime but rather an extension of an existing framework, initially designed to address Iran's military support for Russia's war in Ukraine and later broadened to include support for armed groups in the Middle East and Red Sea region. The recent amendment specifically targets those involved in actions threatening freedom of navigation, reflecting the EU's growing concern over Iran's activities in the strategic waterway. For legal professionals, this expansion necessitates a thorough understanding of the updated compliance landscape and the implications for entities engaged in trade and maritime operations in the region.

The core of this legal development lies in the EU's determination to safeguard the principles of transit and innocent passage, which are fundamental tenets of international maritime law. By imposing targeted sanctions, the EU aims to deter further destabilizing actions and reinforce the importance of unimpeded navigation through international straits. This article will delve into the statutory and doctrinal context of these sanctions, analyze the specific designations, and discuss the practical implications for legal practitioners navigating the complexities of EU restrictive measures.

The European Union's engagement with Iran has historically been multifaceted, encompassing concerns over human rights, nuclear proliferation, and regional stability. The EU maintains several distinct sanctions regimes against Iran, each addressing different aspects of its policies. These include measures related to serious human rights violations, the non-proliferation of weapons of mass destruction, and, more recently, Iran's military support for Russia's war of aggression against Ukraine and for armed groups in the Middle East and Red Sea region.

The legal framework for these restrictive measures is rooted in the EU's Common Foreign and Security Policy (CFSP), which allows the Council to adopt decisions and regulations to implement sanctions. The specific framework relevant to the recent actions in the Strait of Hormuz was initially established in July 2023 to counter Iran's military assistance to Russia. It was subsequently broadened in May 2024 to address Iran's support for armed groups and entities operating in the Middle East and Red Sea region. This progressive expansion demonstrates the EU's adaptive approach to Iran's evolving destabilizing activities.

The immediate impetus for the latest sanctions stems from Iran's actions in the Strait of Hormuz, a critical maritime chokepoint through which approximately one-fifth of global oil and liquefied natural gas supplies transit. Reports indicate that Iran's Islamic Revolutionary Guard Corps (IRGC) Navy has implemented a de facto toll system, requiring vessels to submit documentation and pay transit fees, and has engaged in threatening and harassing commercial shipping. Such actions are viewed by the EU as direct violations of international law, specifically infringing upon the established rights of both transit and innocent passage through international straits, as affirmed by the Council.

On May 22, 2026, the Council of the European Union adopted a decision to amend its existing Iran sanctions framework, thereby enabling the EU to target individuals and entities involved in actions threatening freedom of navigation, particularly in the Strait of Hormuz. This amendment laid the groundwork for the subsequent designations, which were formally approved by EU foreign ministers on June 8, 2026.

The specific designations under this expanded framework include the Hormozgan Provincial Command of the Islamic Revolutionary Guard Corps Navy (IRGCN), Mohammad Akbarzadeh, and Hamid Hosseini. The Hormozgan Provincial Command of the IRGCN is accused of having assumed control of the Strait of Hormuz and implementing a toll system, screening vessels, and determining passage, sometimes after payment of fees. Mohammad Akbarzadeh, identified as the Deputy Commander for Political Affairs and spokesperson for the IRGC Navy, is sanctioned for threatening to use missiles or drones against vessels transiting the strait. Hamid Hosseini, a representative of Iran's Oil, Gas and Petrochemical Products Exporters' Union and a member of Iran's Chamber of Commerce, is listed for promoting the policy of submitting to assessment and paying transit fees for safe passage.

The restrictive measures imposed on these listed individuals and the entity consist of an asset freeze and a travel ban for natural persons. An asset freeze prohibits EU citizens and companies from making funds or economic resources available to, or for the benefit of, the listed parties, or dealing with such funds or resources held, owned, or controlled by them. The travel ban prevents listed individuals from entering or transiting through EU territory. These measures are designed to exert economic and political pressure to cease the disruptive activities in the Strait of Hormuz.

The EU's actions are firmly grounded in international law, with the Council explicitly stating that Iran's actions are contrary to international law and infringe upon the established rights of both transit and innocent passage through international straits. This reiterates the EU's commitment to the United Nations Convention on the Law of the Sea (UNCLOS), which enshrines these fundamental freedoms. The expansion of the sanctions framework highlights a proactive approach by the EU to address maritime security concerns beyond its immediate geographical vicinity, recognizing the global economic implications of disruptions in key shipping lanes. While the EU has not issued a new standalone sanctions regime, the amendment of the existing framework demonstrates flexibility and adaptability in its foreign policy tools.

This development also reflects a broader international concern, with the European Council having previously called for the full implementation of UN Security Council Resolution 2817 (2026) and emphasizing the need to ensure maritime security and respect freedom of navigation. The coordinated nature of these sanctions, building upon previous measures, underscores the EU's strategic intent to address Iran's multifaceted destabilizing activities comprehensively.

The recent EU sanctions targeting Iranian individuals and entities for disrupting transit through the Strait of Hormuz represent a significant escalation in the bloc's efforts to safeguard international maritime law and ensure global trade security. By expanding an existing sanctions framework, the EU has demonstrated its capacity to adapt its restrictive measures to address evolving geopolitical challenges and specific threats to freedom of navigation. The designations of the Hormozgan Provincial Command of the IRGCN, Mohammad Akbarzadeh, and Hamid Hosseini, coupled with asset freezes and travel bans, send a clear message regarding the unacceptability of actions that impede lawful passage through critical waterways.

For legal practitioners, these developments necessitate heightened vigilance and a thorough review of compliance protocols, particularly for clients involved in maritime shipping, trade, and financial transactions with connections to the Middle East. Due diligence processes must be updated to account for the expanded scope of EU restrictive measures and the newly designated parties. Companies operating in the region or utilizing the Strait of Hormuz must assess their exposure to potential risks and ensure adherence to the updated sanctions regime to avoid severe penalties. Practitioners should closely monitor further designations or amendments to the framework, as the EU has indicated its willingness to apply these new powers again if necessary. The ongoing commitment of the EU to maritime security in the Strait of Hormuz suggests that this area will remain a focal point for future policy and legal developments.