SMIC Iran China Chips Iran Sanctions US China Trade Middle East War — A worker inside a semiconductor factory checks equipment on the production line as tensions grow over chip technology reaching hostile nations.

US officials claim China gave Iran secret military chipmaking support.

China's Top Chipmaker Quietly Armed Iran While Washington Watched

By Fahad On Mar 27, 2026

Washington – (Web Desk) – China’s biggest chipmaker may be helping Iran build weapons. That’s what two senior Trump administration officials are now claiming. The company at the center of this is SMIC. It started sending chipmaking tools to Iran’s military about a year ago. And according to one official, there is no sign it has stopped.

The officials also believe SMIC taught Iranian engineers how to use the technology. That makes this more than just a simple equipment transfer. It looks like a full technical partnership.

Both officials spoke anonymously. They shared information that the US government had not made public before. They did not say whether the tools originally came from American companies. That detail matters because shipping US technology to Iran would break American sanctions laws.

SMIC has been on a US trade blacklist since 2020. Washington accuses it of having ties to the Chinese military. SMIC denies this. The Chinese Embassy and Iran’s UN mission did not respond to requests for comment.

China says it only does normal business with Iran. Beijing has also stayed quiet about the ongoing US and Israeli war against Iran. This week China’s top diplomat called for peace talks. But behind the scenes the picture looks very different.

This story is already making things worse between Washington and Beijing. The US is trying hard to slow down China’s chip industry. It has hit SMIC and other Chinese chipmakers with tough restrictions. American companies like Lam Research and Applied Materials are blocked from selling advanced equipment to them.

Last month Reuters reported that Iran was close to buying Chinese anti-ship missiles. That was just before the US sent a large naval force toward Iran. The US and Israel launched their military campaign against Iran on February 28. Since then oil prices have jumped and global markets have been shaky.

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Officials say the chipmaking tools went directly to Iran’s military sector. Chips go into almost everything. Weapons, drones, communication systems. So even basic chipmaking ability can have serious military uses.