Lighting the Fuse: China Abets Iran’s Missile and Space Launch Capabilities

Key Takeaways

• China exported >3,000 tons of solid‑rocket chemicals to Iran (2024‑25).
• Iran pursued Chinese CM‑302 anti‑ship and DF‑17 hypersonic missiles.
• Dual‑use transfers revived Iran’s Shahroud solid‑fuel missile plant post‑2025 strikes.
• Sanctioned logistics use Chinese‑flagged vessels and OBOR routes to evade detection.

Pulse Analysis

China’s partnership with Iran has evolved from ad‑hoc arms sales to a structured, dual‑use technology pipeline anchored by the 2021 Comprehensive Cooperation Agreement. The deal leverages Beijing’s Belt and Road infrastructure to move specialty metals, precision machine tools and large volumes of solid‑rocket propellant chemicals—most notably ammonium perchlorate—through opaque shipping routes and shell companies. By embedding military‑grade components within civilian‑labelled cargo, Chinese firms provide Tehran with the raw materials needed to produce solid‑fuel missiles such as the Emad and Sejjil families, as well as launch vehicles that share propulsion technology with ballistic missiles.

The practical impact on Iran’s strategic posture is evident. After the June 2025 U.S. airstrikes crippled key missile sites, satellite imagery showed the rapid reconstruction of the Shahroud solid‑propellant plant, a capability directly tied to Chinese‑sourced expertise and components. Concurrently, Tehran has moved to acquire China’s CM‑302 supersonic anti‑ship missile and the hypersonic DF‑17 glide vehicle, extending its anti‑access reach across the Strait of Hormuz and potentially threatening carrier groups. These advances compress the decision‑making timelines for regional actors and increase the likelihood of miscalculation during flashpoints.

For Washington and its partners, the challenge is two‑fold: disrupting a sophisticated, multinational supply chain while managing the broader geopolitical rivalry between Beijing and the West. Existing sanctions target individual firms, but the use of Chinese‑flagged vessels, OBOR logistics hubs and yuan‑denominated payments creates resilience against enforcement. Strengthening multilateral export‑control regimes, expanding maritime interdiction under the Proliferation Security Initiative, and incentivizing compliance through secondary sanctions are essential steps. Ultimately, curbing China‑Iran military collaboration will require coordinated diplomatic pressure, intelligence sharing, and investment in supply‑chain transparency to prevent further proliferation of advanced missile technology.