Global Defence Technology Insight Report

Copper has long been a foundational element in the aerospace and Defence industry due to its exceptional electrical conductivity, thermal performance, corrosion resistance, and malleability. As technology advances and Defence systems become increasingly complex and electrified, global demand for copper within this sector continues to grow. From wiring and electronic components to structural elements and thermal management systems, copper plays a vital role in ensuring the functionality, reliability, and safety of modern military and aerospace platforms.

In military aircraft and spacecraft, copper is extensively used in electrical systems, where it supports high-performance data transmission, power distribution, and communication functions. As avionics become more sophisticated, requiring more sensors, processors, and interfaces, the need for high-quality copper wiring and circuit boards has intensified. Lightweight copper alloys are also employed in areas that demand both strength and conductivity, such as connectors, actuators, and control systems. The miniaturization of components in modern aircraft has further increased copper usage, as compact systems require efficient heat dissipation and stable electrical performance.

Defence ground systems, including tanks, armored vehicles, and mobile command units, rely on copper for everything from engine systems to radar and communications infrastructure. As these platforms incorporate more digital and electronic systems ranging from GPS and surveillance to targeting and electronic warfare the demand for copper-rich materials grows. Electrical power systems for these vehicles, particularly those moving toward hybrid or fully electric propulsion, require advanced copper cabling and components to handle increased voltage and load demands.

Naval applications also contribute significantly to the industry’s copper consumption. Warships, submarines, and unmanned maritime systems use vast amounts of copper for power distribution, sonar systems, weapons controls, and propulsion. Copper-nickel alloys are favored in saltwater environments because of their exceptional resistance to corrosion and biofouling, which is critical for long-term durability and performance in marine conditions. Submarine power systems, in particular, demand high-purity copper to ensure the reliability of sensitive onboard equipment under pressure and in isolation.

The rise of directed energy weapons, electronic warfare systems, and advanced radar platforms has introduced additional layers of copper dependence. These systems require robust electrical infrastructure to support energy transmission and rapid power cycling. High-conductivity copper components are essential for minimizing energy loss and heat generation, both of which are critical in environments where precision and speed are vital. As these technologies become more widespread, copper?s role as a core material will only intensify.

Global Defence modernization programs and the aerospace industry?s push toward electrification and digitization continue to drive copper demand upward. The development of next-generation fighter jets, autonomous drones, and space-based Defence assets further accelerates this trend. With the Defence sector prioritizing resilience and performance, the material properties of copper make it indispensable across a wide range of systems and components.

As geopolitical tensions persist and nations increase Defence spending, copper?s strategic importance in military and aerospace applications is likely to rise. Supply chain considerations and raw material security are also prompting efforts to ensure stable access to copper, highlighting its critical role not just in technology, but in national Defence planning as well.