Navigating Iran's Complex Sanctions Web
A detailed analysis highlights the complexity of the U.S. sanctions regime on Iran, which has been layered over 30+ years via multiple executive orders. The restrictions target sectors including construction, manufacturing, and mining, creating a difficult compliance environment for global firms with potential exposure in their supply chains.
The scope of "secondary sanctions" has expanded, creating significant risk for non-U.S. firms. Executive Order 13902 specifically targets those operating in or transacting with Iran's construction, manufacturing, mining, and textiles sectors. This means even companies without a direct U.S. presence can face penalties for dealing with these sectors in Iran. Recent enforcement actions reveal a focus on disrupting Iran's revenue from oil and petrochemicals, which the U.S. government says funds the country's weapons programs. In early 2026, the Treasury Department sanctioned over 30 entities, including a "shadow fleet" of vessels used to illicitly transport Iranian oil and networks in Turkey and the UAE supplying materials for missile production. For manufacturers, this escalates supply chain risks. The U.S. has sanctioned Iranian automotive and steel companies, including Khuzestan Steel Company, and has restricted access to materials like certain aluminum alloys and tungsten copper that have potential military applications. This requires deeper due diligence to identify and mitigate exposure to designated entities and materials. The automotive sector in Iran provides a cautionary example of the impact of these sanctions. Once producing over 1.5 million vehicles annually, the industry saw a 38% year-on-year decline by March 2019 after the withdrawal of foreign partners and restrictions on parts and technology. Sanctions have also targeted automaker Bahman Group for its alleged support of the Islamic Revolutionary Guard Corps (IRGC). The Office of Foreign Assets Control (OFAC) stresses the need for a risk-based compliance approach. Internal audit functions are critical in assessing these risks, evaluating the effectiveness of internal controls, and testing for potential compliance gaps. Auditors should be aware of red flags for sanctions evasion, such as complex ownership structures or transactions involving high-risk jurisdictions. While the sanctions are broad, OFAC has issued guidance clarifying certain exemptions. For instance, the manufacture and sale of medicine, medical devices, and hygiene products within Iran are generally not targeted under the manufacturing sector sanctions. However, determining whether a manufacturer produces goods solely for domestic use can be challenging. The geopolitical landscape remains volatile, with ongoing, albeit tense, negotiations between the U.S. and Iran. Companies must continuously monitor developments, as the U.S. has signaled its intent to maintain a "maximum pressure" campaign, which could include new sanctions or tariffs on countries trading with Iran. For global firms, the European Union's "blocking statute" adds another layer of complexity. This regulation can prohibit EU companies from complying with certain U.S. extraterritorial sanctions, creating potential legal conflicts that require careful navigation.
