BY MIRABEL ODETA
U.S. President Donald Trump warned on Wednesday that any country providing military weapons to Iran could face immediate tariffs of 50% on all goods exported to the United States. The announcement came just hours after Washington agreed to a two-week ceasefire with Tehran following weeks of escalating conflict.
The warning follows more than five weeks of military strikes carried out by the United States and Israel targeting Iran’s missile launchers, weapons production facilities, and other military infrastructure. After the intense military campaign, Trump appeared to shift tactics, signaling that economic pressure through tariffs could be used to deter foreign powers from helping Iran rebuild its military capabilities.
In a message posted on the social media platform Truth Social, Trump said the United States would take swift economic action against any government supplying Tehran with weapons.
“A Country supplying Military Weapons to Iran will be immediately tariffed, on any and all goods sold to the United States of America, 50%, effective immediately. There will be no exclusions or exemptions,” Trump wrote in the post, though he did not mention any specific countries.
The warning is widely viewed as directed primarily at China and Russia, both of which have historically cooperated with Iran on defense technology and military equipment. Beijing and Moscow have denied recently supplying weapons to Iran, although allegations about Russia’s involvement have continued to circulate in diplomatic and intelligence circles.
Both countries have played a role in strengthening Iran’s military capabilities over the years. Their assistance has included support for missile technology, air-defense systems, and other strategic military tools designed to help Tehran counter pressure from Western nations and Israel. However, analysts say that during the recent U.S.-Israeli strikes on Iran, such support appeared limited.
Trump’s tariff threat also raises questions about the legal authority behind such sweeping trade measures. In February, the Supreme Court of the United States ruled that Trump could not rely on the International Emergency Economic Powers Act to impose broad global tariffs. The decision removed one of the administration’s fastest and most powerful tools for applying tariffs in response to international crises.
Despite that ruling, Trump still retains several trade mechanisms that could potentially be used to impose targeted tariffs.
Concerns about China’s role in supporting Iran have intensified in recent months. Earlier reports indicated that Tehran had been considering purchasing advanced supersonic anti-ship cruise missiles from China, a development that would significantly strengthen Iran’s naval deterrence capabilities in the Persian Gulf.
Additional reports have also suggested that China’s largest semiconductor manufacturer, Semiconductor Manufacturing International Corporation, may have supplied specialized chipmaking equipment to Iran’s military sector. Two senior officials within the Trump administration previously raised those concerns, arguing that such equipment could support Iran’s defense technology programs.
Josh Lipsky, vice president and chair of international economics at the Atlantic Council, said the tariff warning appears primarily aimed at Beijing.
“This is a China-related threat, the way I read it,” Lipsky said. “And China will read it that way.”
However, Lipsky also suggested that the administration might hesitate to follow through with sweeping tariffs in the immediate future. Imposing such measures could complicate diplomatic relations with China, particularly as Trump is reportedly planning a trip to Beijing to meet Chinese President Xi Jinping.
Chinese officials quickly rejected the allegations. Defense ministry spokesperson Zhang Xiaogang said claims that Chinese firms had provided Iran with semiconductor equipment or satellite imagery were unfounded.
“China has always been open and above board on the Iran issue,” Zhang said in a statement. He added that Beijing maintains a neutral and objective position and continues to support diplomatic efforts aimed at easing tensions in the region.
Zhang also criticized what he described as conflicting actions by other countries, suggesting that some governments were contributing to conflict while publicly calling for peace.
At the same time, U.S. officials have emphasized that Washington wants to maintain stability in its relationship with China. Jamieson Greer said earlier this week that Trump’s administration hopes to preserve access to critical Chinese exports, particularly rare-earth minerals that are essential for high-tech manufacturing and defense industries.
Greer said the administration aims to maintain current tariff levels while avoiding what he described as a “massive confrontation” with Beijing.
If Trump chooses to impose additional tariffs, analysts say he would likely rely on trade laws already used during his first administration. One option would be the existing investigation under Section 301 of the Trade Act of 1974, which allows the United States to impose tariffs in response to unfair trade practices by foreign governments.
Another potential route would be the national security provision known as Section 232 of the Trade Expansion Act of 1962. This law allows tariffs on specific sectors considered critical to national security, though it generally limits tariffs to targeted industries rather than entire economies.
Trade tensions between Washington and Beijing have already significantly reshaped global commerce. U.S. imports from China fell sharply over the past several years, dropping from a peak of $538.5 billion in 2018 to about $308.4 billion in 2025, with additional declines reported in the early months of this year.
Russia has also played a role in supplying military technology to Iran in the past. However, trade between the United States and Russia has diminished dramatically since Russia’s invasion of Ukraine in 2022 and the sweeping financial sanctions that followed.
Despite those sanctions, U.S. imports from Russia rose 26.1% in 2025 to reach $3.8 billion. Much of that trade consists of strategic commodities such as palladium used in automotive catalytic converters, fertilizer products, and enriched uranium used in nuclear power reactors.
The United States Department of Commerce is currently reviewing measures that could impose punitive tariffs on Russian palladium following an anti-dumping investigation.
As tensions surrounding Iran continue to shape global diplomacy and trade policy, analysts say the administration’s next steps could influence not only the conflict in the Middle East but also the broader balance of economic relations between the world’s largest powers.
Original article
Comments