A recent report from the Centre for Technology & Statecraft (CTS) indicates that Chinese-owned semiconductor fabrication plants have stockpiled approximately 343 immersion deep ultraviolet (DUV) lithography machines by early 2026. These systems, manufactured by the Dutch company ASML, are essential for producing advanced microchips. The total value of these acquisitions is estimated to be in the billions of dollars.

The report, authored by former U.S. officials, suggests that this significant accumulation of equipment undermines existing international efforts to restrict China's access to high-end chipmaking technology. Consequently, these officials are advocating for Washington and its international allies to implement a complete ban on future exports of these lithography tools to China. The report highlights the strategic importance of these machines, which are currently at the center of a geopolitical tug-of-war regarding technological dominance and national security.

While the report focuses on the volume of equipment acquired, it does not detail the specific operational status of all 343 machines or the exact timeline of every transaction. The situation underscores the ongoing tension between global trade in semiconductor equipment and the desire of Western nations to limit the growth of China's domestic chip industry. As of now, the call for a total export ban remains a proposal from the research group, and it is unclear how the U.S. government or ASML will respond to these findings.