Trump Signs Executive Order Enabling Secondary Tariffs on Iran’s Trade Partners as Nuclear Talks Resume

The framework for sweeping trade penalties arrives amid diplomatic overtures in Oman, raising questions about whether economic coercion can succeed where military pressure has failed

On February 6, 2026, President Donald Trump signed an executive order that could fundamentally reshape global trade architecture around Iran, establishing a legal framework to impose additional tariffs on any nation conducting commerce with the Islamic Republic. The order, which took effect February 7, represents the administration’s most ambitious attempt yet to weaponize America’s economic leverage against Tehran—while simultaneously opening a potential Pandora’s box of diplomatic and commercial complications for US allies and adversaries alike.

The timing is striking: Trump announced the measure even as American and Iranian officials engaged in indirect negotiations in Muscat, Oman—the first substantive dialogue since US involvement in coordinated strikes on Iranian nuclear facilities last June. Speaking to reporters aboard Air Force One en route to Mar-a-Lago, the president characterized the Oman talks as “very good” and indicated further sessions would occur “early next week,” suggesting the tariff framework may serve as both stick and carrot in a renewed campaign of maximum economic pressure.

Yet unlike Trump’s first-term sanctions regime, which primarily targeted Iran directly, this executive order casts a far wider net—one that could ensnare some of America’s most important economic and security partners.

The Mechanics of Secondary Economic Coercion

The executive order does not immediately impose tariffs. Instead, it reaffirms the national emergency declaration concerning Iran and establishes a bureaucratic process through which the Secretaries of State, Commerce, and Treasury can identify countries or entities “directly or indirectly” purchasing, importing, or acquiring goods and services from Iran. Once identified, those nations could face additional import duties—with Trump’s mid-January Truth Social post suggesting a 25% rate as the benchmark.

This framework represents secondary sanctions on steroids, extending beyond traditional financial restrictions to encompass broad trade penalties. The mechanism’s flexibility is both its power and its peril: administration officials retain discretionary authority over implementation, creating significant policy uncertainty for global businesses and governments alike.

The legal architecture builds on emergency powers Congress has granted presidents since the International Emergency Economic Powers Act of 1977, though legal scholars have increasingly questioned the constitutional boundaries of such delegated authority. Still, the Supreme Court has historically deferred to executive discretion in foreign commerce matters, particularly those framed as national security imperatives.

Who Stands in the Crosshairs?

The list of potential targets reads like a roster of the world’s largest economies and most strategically significant nations. China tops the list as Iran’s primary trading partner, with bilateral commerce reaching approximately $32.5 billion in 2024 according to World Trade Organization data—driven predominantly by Chinese oil imports that have sustained Iran’s economy despite Western sanctions.

Beijing’s response will prove critical. Chinese officials have consistently maintained that their economic relationship with Iran complies with international law, and Foreign Ministry spokesperson statements have repeatedly asserted China’s right to conduct “normal trade and economic cooperation.” A 25% tariff on Chinese goods entering the United States—even if selectively applied—would represent a dramatic escalation beyond the Trump administration’s existing tariff regime, potentially triggering retaliatory measures that could spiral into a broader economic confrontation.

The European Union faces its own dilemma. Germany, despite scaling back relations with Tehran, maintains residual trade ties, while several member states have worked to preserve economic channels even under US sanctions pressure. Brussels has historically resisted American extraterritorial sanctions applications, viewing them as violations of international law and European sovereignty. The Trump administration’s approach threatens to force a choice between transatlantic alliance cohesion and principles of trade autonomy.

Turkey presents perhaps the most acute diplomatic complication. As a NATO ally hosting crucial American military installations, Ankara has nevertheless maintained pragmatic economic relations with Iran, driven by geography, energy needs, and President Recep Tayyip Erdoğan’s regional ambitions. Penalizing Turkish trade could undermine alliance cooperation at a moment when NATO faces multiple security challenges from the Black Sea to the Eastern Mediterranean.

The United Arab Emirates occupies equally complex terrain. Despite Abraham Accords normalization with Israel and close security cooperation with Washington, Dubai’s business community has long served as a critical commercial hub for Iranian entities seeking to circumvent sanctions. Abu Dhabi has walked a careful line between American security partnership and regional economic pragmatism—a balancing act this executive order could render untenable.

India, the world’s fastest-growing major economy and an increasingly important US strategic partner in Indo-Pacific competition with China, imports significant Iranian oil when sanctions waivers permit. New Delhi has historically resisted choosing between Washington and Tehran, instead pursuing its national interests through strategic autonomy. Secondary tariffs could test that doctrine’s limits.

Even Russia, already heavily sanctioned over Ukraine, conducts substantial commerce with Iran, including reported arms transfers and energy cooperation. While Moscow has limited vulnerability to additional US trade penalties given existing restrictions, the executive order signals Washington’s willingness to treat the Russia-Iran partnership as an integrated strategic threat.

Economic Ripple Effects and Market Uncertainties

The global economic implications extend well beyond bilateral trade balances. Iran remains a significant oil producer despite sanctions, with exports estimated between 1.5 and 2 million barrels daily—much of it flowing to China through opaque channels. Any disruption to these flows, whether through enhanced enforcement or preemptive cutbacks by nervous buyers, could tighten global energy markets already navigating geopolitical volatility from Ukraine to the South China Sea.

Energy analysts at several investment banks have noted that Brent crude futures showed modest upticks following the executive order’s announcement, reflecting trader concerns about supply disruption risks. While global oil markets currently show adequate spare capacity, the psychological impact of threatening major importers like China could introduce new price volatility, particularly if Beijing responds by accelerating strategic petroleum reserve accumulation or seeking alternative suppliers at premium prices.

Supply chain vulnerabilities present another concern. Many products imported to the United States contain components manufactured in countries that trade with Iran, even if final assembly occurs elsewhere. The “directly or indirectly” language in the executive order creates ambiguity: Would a German automotive manufacturer sourcing steel from a company that also sells to Iranian clients face penalties? The lack of clarity generates compliance nightmares for multinational corporations and could trigger preemptive supply chain reorganizations with associated costs and inefficiencies.

For American consumers, secondary tariffs risk compounding inflation pressures. The US imports substantial volumes from China, the EU, Turkey, and other potential targets. Even selectively applied 25% duties would likely translate to higher retail prices for electronics, automobiles, textiles, and other goods—an awkward political reality for an administration that has emphasized economic strength as a signature achievement.

Diplomatic Calculations and the Oman Talks

The executive order’s announcement concurrent with renewed nuclear negotiations raises fundamental questions about the administration’s strategic theory. Is economic coercion meant to pressure Tehran toward concessions at the negotiating table? Or does it reflect skepticism about diplomacy’s prospects, with commercial warfare pursued as a parallel track?

Historical precedent offers mixed lessons. Trump’s first-term “maximum pressure” campaign succeeded in devastating Iran’s economy—GDP contracted roughly 13% between 2017 and 2020—but failed to produce the comprehensive nuclear agreement the administration sought. Instead, Tehran responded by expanding its nuclear program beyond Joint Comprehensive Plan of Action (JCPOA) limits, enriching uranium to near-weapons-grade levels and accumulating substantial stockpiles.

The June 2025 strikes on Iranian nuclear facilities, in which the United States reportedly provided intelligence and logistical support to regional partners, marked a dramatic escalation beyond economic pressure. Yet six months later, with Iran’s program damaged but not eliminated and regional tensions simmering, both sides appear willing to explore diplomatic off-ramps.

The Muscat talks—hosted by Oman, which has long served as a discreet intermediary between Washington and Tehran—represent the most serious engagement since the strike operations. While details remain closely held, informed observers suggest discussions focus on verifiable constraints on Iran’s nuclear program in exchange for sanctions relief and security assurances.

Into this delicate diplomatic dance, the tariff executive order injects significant complexity. Iranian officials have historically viewed economic pressure as evidence of American bad faith, arguing that Washington uses sanctions to pursue regime change rather than genuine policy modification. The timing could reinforce hardline narratives within Tehran’s political establishment, potentially strengthening voices skeptical of negotiation.

Conversely, the administration likely calculates that threatening third-party trade partners demonstrates resolve and raises the costs of Iranian intransigence, potentially accelerating Tehran’s timeline for concessions. The theory holds that fear of economic isolation—not just for Iran but for its vital commercial partners—creates additional pressure channels unavailable through direct bilateral sanctions alone.

Whether this strategy succeeds depends substantially on execution. Measured application targeting specific sectors or entities might preserve diplomatic space while signaling seriousness. Sweeping implementation against major economies would likely trigger defensive responses that harden positions rather than facilitate compromise.

Alliance Strains and the Broader Strategic Context

Beyond immediate Iran policy, the executive order raises fundamental questions about American alliance management and the sustainability of unilateral economic statecraft. European officials have long complained that US extraterritorial sanctions force compliance with American foreign policy preferences or exclusion from dollar-denominated finance and US markets—a choice they view as coercive and corrosive to transatlantic partnership.

The executive order arrives amid broader tensions over trade policy. Trump has threatened or imposed tariffs on numerous partners over issues ranging from steel production to digital services taxes, treating commerce as a primary tool of geopolitical influence. While this approach enjoys domestic political support, it risks accelerating efforts by allies and competitors alike to reduce dependence on US-dominated financial and commercial systems.

China has invested heavily in payment systems alternatives to SWIFT, Yuan-denominated oil contracts, and bilateral trade arrangements that bypass dollar settlement. Russia has pursued similar de-dollarization strategies. The threat of tariffs on Iran trade could provide additional impetus for developing economies to participate in these alternative frameworks, potentially eroding American economic leverage over the long term.

For regional Middle Eastern partners, the executive order creates difficult choices. The UAE and Saudi Arabia have sought to position themselves as indispensable US security partners while maintaining economic flexibility to pursue national interests, including periodic accommodation with Iran. Forcing stark binary choices risks either alienating partners who resist or creating dependencies that reduce their regional influence.

What Happens Next: The Week Ahead and Beyond

President Trump’s indication that further talks would occur “early next week” suggests the diplomatic track remains active despite economic saber-rattling. The proximity of these events—executive order signing and continued negotiations—may be deliberate sequencing: establish the framework for enhanced pressure while leaving actual implementation as a negotiating variable.

Several scenarios merit consideration. First, negotiations could produce preliminary agreements on nuclear monitoring or enrichment caps, with the United States agreeing to delay or limit tariff implementation as a reciprocal confidence-building measure. This would represent classic coercive diplomacy—threatening pain to secure concessions, then withholding implementation as reward for cooperation.

Second, talks could stall over verification mechanisms or sanctions relief sequencing, leading the administration to begin designating countries for tariffs—likely starting with smaller players rather than China or major European economies, testing international reaction before escalating further.

Third, external events could overtake both negotiation and tariff tracks. Iran’s domestic political calendar, potential Israeli actions, or regional proxy conflicts could shift calculations rapidly, either accelerating diplomatic urgency or rendering negotiations moot.

For global markets and policymakers, the executive order injects substantial uncertainty into an already complex geopolitical environment. Businesses engaged in Iran trade face pressure to demonstrate compliance or risk US market access. Governments must calibrate responses that balance sovereignty principles against economic interests. And all parties must navigate an administration that has demonstrated willingness to rapidly shift tactical approaches while pursuing strategic objectives.

The ultimate question remains whether economic coercion of this scale and scope can achieve outcomes that previous approaches—direct sanctions, military pressure, and diplomatic isolation—have not. History suggests that while economic pressure can inflict costs, translating those costs into desired policy changes requires adversaries to perceive acceptable off-ramps and negotiating partners to maintain credibility through consistent implementation.

As talks resume in Oman this week, the world will watch not only what occurs in closed-door negotiating sessions but also how the Trump administration wields—or restrains—the expansive economic weapon it has just forged. The answer will shape not only the Iranian nuclear issue but the broader international order’s trajectory in an age of renewed great power competition and economic nationalism.