China's Dual-Use Exports to Russia's War Machine

What Counts as Dual-Use

Dual-use goods are products with both civilian and military applications: a microchip can run a washing machine or a cruise-missile guidance unit; a lathe can machine engine parts or shell casings. This ambiguity is the heart of the problem. Because most of these items are legally classified as civilian, they can be exported and sold without triggering arms-control rules, even when their ultimate destination is a defense plant.

For Russia, cut off from Western suppliers after 2022, China became the indispensable workshop. Rather than shipping tanks and missiles, Chinese firms supply the inputs — components, machinery and precursors — that let Russia build them at home. To track this, governments and researchers focus on a "high-priority" or "common high priority" list of items most critical to weapons production, monitoring how much of each Russia imports and from where.

Microelectronics & Optics

Microelectronics are the clearest example of dependence. Analysts have estimated that China, often counted together with Hong Kong, accounted for roughly 90% of Russia's imports of high-priority battlefield goods such as semiconductors, navigation and communication equipment in 2023. These chips end up in drones, missiles, radios and electronic-warfare systems. The same investigations that recover Western parts from Russian weapons increasingly find Chinese-routed or Chinese-origin electronics alongside them.

Optics — sights, thermal imagers and targeting components — follow a similar pattern. Chinese suppliers fill gaps left by departed Western firms, sometimes with comparable performance and sometimes as cheaper substitutes. The precise share varies by item and dataset and by how third-country transshipment is counted, so the headline figure is best read as showing overwhelming reliance rather than a fixed constant.

CNC Machine Tools

If electronics are the brains, CNC (computer numerical control) machine tools are the hands. These are computer-controlled machines that cut, shape and engrave metal with high precision — essential for manufacturing gun barrels, engine parts, missile bodies and shell casings. They sit on the US Commerce Department's Common High Priority List precisely because they are force-multipliers for an arms industry.

Trade analysis indicates Russia imported large volumes of CNC tools as it rebuilt and expanded production: researchers have cited figures in the range of more than fifteen thousand units worth well over a billion dollars across 2021–2023, with China the dominant source of advanced lathes and milling machines. Individual cases have surfaced of Chinese firms supplying CNC parts despite Western restrictions, illustrating how listings push trade into harder-to-track channels rather than ending it.

Nitrocellulose & Drone Parts

Ammunition production has its own chokepoints, and propellant is a critical one. Nitrocellulose, a core ingredient of modern gun propellant, has featured in reporting on Chinese supply to Russia; because it is also used in paints, lacquers and films, it sits squarely in the dual-use grey zone. Related precursors and oxidizers have also been tracked, with analysts noting Chinese dominance in some propellant-relevant chemicals that help Russia sustain shell and missile output.

Drone-related inputs are a fast-growing category. Trade-data analysis and sanctions actions have flagged Chinese exports of engines, electronics and airframe parts usable in military UAVs, with reporting citing rising values for drone-related engine exports to Russia. As with everything else here, much of this hardware is civilian-classified and repurposed downstream, which is exactly why it is so hard to interdict.

Entity List & Enforcement

The main Western tool is the US Entity List, which restricts exports to named firms. The US has added many Chinese companies for supporting Russia's military, with hundreds of additions in recent years, alongside coordinated EU and allied measures. The intent is to choke off the most important suppliers and signal political resolve.

Enforcement, however, is a moving target. Listed firms can rename, dissolve and reconstitute; goods can be routed through third countries in Central Asia, the Caucasus and beyond, disguising the final destination; and the sheer volume of legitimate China–Russia trade provides cover. Listings raise costs, add friction and complicate logistics, but on their own they do not stop the flow. That is why analysts emphasize trade-data monitoring, financial intelligence and corporate due diligence as complements to sanctions.

Every figure in this analysis carries limitations. Customs data can be incomplete or mislabelled, definitions of dual-use differ between studies, and transshipment muddies origin. The KSE Institute, RUSI, C4ADS and Kharon publish careful work, but each number should be read with its methodology and as-of date.

Key Data

⚠ Figures are approximate, from customs data and open-source analysis (Kyiv Independent, Kharon). They are uncertain and shift over time. Not investment advice.