# Cotton Asks Commerce to Add CXMT to Entity List and Study U.S. Sales Ban By Riza Dagoc Canonical URL: https://www.tokenpost.com/news/regulation/56138 Published: 2026-11-13T01:08:07.000Z Updated: 2026-11-13T01:08:07.000Z Section: Regulation > CXMT's share of global DRAM revenue reached 10% in the second quarter, up from 4% a year earlier. Sen. Tom Cotton asked the Commerce Department on Nov. 12 to add CXMT, a Chinese DRAM maker, to the Entity List and study a U.S. sales ban, seeking to curb its access to U.S. technology. In a letter to Commerce Secretary Howard Lutnick, Cotton urged the department to deny CXMT access to U.S. technology and technical support, including semiconductor manufacturing equipment and tools for its factories. He also asked the Information and Communications Technology Services (ICTS) office to study barring CXMT products from U.S. sales. Cotton argued that U.S. and allied technologies were available. Cotton said CXMT poses a growing risk to U.S. economic prosperity and military advantage. The letter requested Commerce action but did not announce a department decision. Existing U.S. measures include the War Department’s placement of CXMT on the Section 1260H list of Chinese military companies, Bureau of Industry and Security (BIS) export controls on some advanced technologies destined for certain CXMT factories, and a congressional restriction on further federal purchases of CXMT products in the fiscal 2023 National Defense Authorization Act. CXMT ranked fourth among global DRAM makers. Its share of global DRAM revenue rose to 10% in the second quarter of 2026 from 4% in the second quarter of 2025. The request comes as the company pursues [global DRAM expansion amid supply and U.S. tool constraints](). Cotton’s letter also cited CXMT’s expected start of HBM3E production. High-bandwidth memory is used in AI chips from Nvidia, Google and Amazon, and is produced mainly by Samsung, SK Hynix and Micron. ## Links in this article - [global DRAM expansion amid supply and U.S. tool constraints](https://www.tokenpost.com/news/business/29792)