China Hits US Rare Earth and Defense Firms with Export Controls in Escalating Supply Chain Tensions

China's Ministry of Commerce on June 22, 2026, added 10 US companies to its export control list for dual-use items, explicitly including rare earth producers MP Materials and USA Rare Earth, alongside defense contractors such as Aveox, Red Cat Holdings, Teal Drones, IMSAR, Jaia Robotics, Ball Aerospace & Technologies, Oshkosh Defense, and L3Harris Maritime Services. It simultaneously barred 46 US firms from Chinese government procurement. The move directly responds to the Pentagon's June 9 expansion of its Chinese Military Companies list, which added major tech firms including Alibaba, Baidu, and BYD for alleged military ties. While the US designation is largely symbolic, China's actions impose concrete prohibitions on exports of sensitive materials and components, halting any ongoing shipments. This exchange highlights Beijing's leverage over critical minerals essential for magnets, electronics, defense systems, and renewables. Mainstream reporting from Reuters, Bloomberg, and the Wall Street Journal frames the steps as retaliatory leverage in ongoing negotiations rather than isolated tit-for-tat, underscoring structural decoupling in tech and supply chains. MP Materials, backed by US defense investments and operating the Mountain Pass mine, and USA Rare Earth are key to Washington's push for domestic alternatives to China's near-monopoly on processing. Analysts note the measures target sectors at the heart of technological competition, with potential ripple effects on US efforts to build resilient supply chains amid persistent Taiwan-related frictions.