China Supplying Iran With Critical Drone and Missile Components, Report Reveals

A comprehensive investigation by The Wall Street Journal has uncovered a significant commercial-security supply chain funneling advanced technology from China to Iran, bolstering its drone and missile programs. Despite Beijing's public pronouncements of de-escalation, a Chinese cargo plane delivered critical components for drones and missile guidance systems to Tehran on the same day a temporary ceasefire was reached between the U.S. and Iran last summer. Iranian customs data reveals thousands of shipments of components from China to Iran's security apparatus, indicating a systematic effort to acquire advanced military technology.

This revelation follows earlier reports and documents suggesting a major deal for Chinese-made man-portable air defense systems (MANPADS), specifically QW-12 and FN-16 models, valued between $60 and $70 million. While China's Foreign Ministry has denied these claims, sources indicate the agreement is in place, though delivery specifics may vary. The logistical connection between the two nations extends beyond air transport, with reports suggesting overland routes through Pakistan for the MANPADS, a claim Pakistan denies. Western intelligence and an Iranian source confirmed Tehran's exploration of overland routes to discreetly move military equipment and dual-use components.

Further evidence of the clandestine trade emerged from shipping data, satellite imagery, and expert analysis, indicating that two Iranian-owned cargo ships departed from China in March, carrying sodium perchlorate, a key precursor for solid rocket fuel. A similar shipment of approximately 1,000 tons of the same material was documented in January 2025. The U.S. Committee on U.S.-China Security and Economic Review notes a shift in security cooperation from heavy conventional arms to dual-use technologies like sensors and semiconductors, components found in drones supplied to Iran's regional proxies and Russia for use in Ukraine.

In response, the U.S. Treasury Department has imposed sanctions on Chinese companies involved in facilitating these transfers, including Yushita for assisting in acquiring shoulder-fired missiles and Hitex Insulation for supplying carbon fiber and aviation materials to the Islamic Revolutionary Guard Corps. A procurement network from China and Hong Kong, using shell companies and covert financial channels to smuggle components for nuclear research and ballistic missiles, has also been targeted.

To disrupt the aerial supply route, the U.S. Treasury imposed severe sanctions on Iran's aviation sector on September 8, suspending civil aviation-related exemptions. U.S. Treasury Secretary Scott Bessent warned of heavy secondary sanctions on international entities continuing to service Iranian airlines, including airports, ground services, refueling, and cargo operations, threatening their access to the U.S. financial system and dollar-based trade. These measures have already impacted flights, with Iraq ordering a halt to Iranian flights to Baghdad and other disruptions occurring across the region, significantly limiting Tehran's ability to use its commercial air network for international cargo and equipment transfers. However, these aviation sanctions alone are not a complete blockade, as Iran has demonstrated its capacity to utilize sea and land routes, suggesting the supply chain may increasingly shift to these alternative, albeit more costly and time-consuming, methods.