The US has stepped up calls for its allies to accept higher costs for sourcing critical minerals outside China, arguing that supply chain security must take precedence over price efficiency – a stance that is reshaping expectations across metals markets but has yet to translate into durable pricing support.

For decades, tungsten sat on the margins of US industrial policy. Despite its essential role in armor piercing munitions, aerospace alloys and advanced manufacturing, the ultra hard metal was sourced overwhelmingly from China, while US domestic mining faded from view.

Military readiness relies on a narrow set of industrial inputs that enable advanced systems to function under extreme conditions. As supply chains become more complicated and politicised, securing reliable access to these materials is emerging as a strategic challenge for the defense industry.

An interview in which Andrea Hotter spoke with Jon Stibbs, managing editor for technology and energy metals, to explore a growing concern for global defense supply chains.