US-China tech war in the balance as leaders prepare for summit

By the Editorial Team · Tuesday, September 22, 2026

The United States has tightened export controls on advanced technology components linked to China, including plans to ban Chinese-made optical transceivers used in data centers before year-end. This escalates strategic competition by pushing both nations to leverage their strengths in critical supply chains, with China potentially responding through rare earth minerals and data restrictions while the U.S. seeks to reduce dependency on Chinese resources.

As the United States and China prepare for an upcoming summit, both countries have intensified their use of export controls and restrictions across technology and supply chains, heightening the stakes in their ongoing strategic rivalry.

On the U.S. side, regulatory measures are increasingly targeting downstream hardware components linked to advanced technology. In July, the Federal Communications Commission expanded its Covered List to include foreign-made advanced robotic devices and connected power inverters. Additionally, the agency is reportedly working on a ban against Chinese-made optical transceivers used in data centers, with plans to announce and enforce the rule before the end of the year.

Analysts at Bernstein have characterized the U.S.’s recent prohibition on new foreign-manufactured mobile robots as marking the beginning of a formal decoupling between the two countries in robotics. While China remains dependent on American AI chips and simulation platforms, it has advanced more quickly in developing large-scale training datasets and securing valuable data assets. According to Bernstein’s analysis, China is likely to respond primarily through data-related measures, with the potential escalation involving rare earth magnets as a strategic lever.

China dominates the global rare earth minerals market, accounting for approximately 60% of mining and nearly 90% of processing worldwide, according to the Washington-based Center for Strategic and International Studies. Its position as the leading producer of these critical materials has long provided China with leverage in trade disputes with the U.S.

In response, Washington has accelerated efforts to reduce its reliance on Chinese rare earths. Notably, Elon Musk recently highlighted the Cybercarb’s rare-earth motor as a step toward diversifying supply chains, though analysts caution that this development represents only a modest move toward diminishing China’s overall influence in the sector.

At the federal level, USA Rare Earth secured access to as much as $1.6 billion in U.S. government funding in June to establish a domestic mine-to-magnet supply chain. However, experts, including Rostoum of the Center for European Policy Analysis, observe that China holds a significant advantage, having spent the past two decades aggressively acquiring critical mineral resources globally.

Beyond rare earths, China’s broad industrial ecosystem and dominant role in global manufacturing continue to provide it with substantial leverage. Giovannini, a fellow at the University of Hong Kong’s Asia Global Institute, noted that while the U.S. is intent on reducing dependency on China, Beijing’s extensive and deep-rooted industrial base is considerably more difficult to replicate quickly than isolated supply chains.

He added that the focal point ahead of the summit is less about which nation possesses greater leverage and more about which side is prepared to endure the greater economic costs involved in wielding that leverage. The dynamic between the two powers remains a key variable in the evolving landscape of global technology competition.

This article was reported by synthesizing coverage from multiple independent news outlets to present a balanced, unbiased account. Read about our editorial standards. Spotted an error? Let us know.