CXMT sues US Pentagon to fight DRAM chipmaker's military blacklist
Synopsis
CXMT, China's biggest DRAM chipmaker, has sued the US Pentagon in a Washington federal court to be removed from the Section 1260H military-linked companies list — a designation it has held since January 2025 and failed to shed after a June 2026 review. The case could set a new evidentiary standard for US national-security blacklists.
Key Takeaways
ChangXin Memory Technologies (CXMT) , China 's largest DRAM chipmaker, filed a federal lawsuit in Washington on 29 August 2026 against the US Department of Defence .
Defence Secretary Pete Hegseth is named as a defendant in the suit.
CXMT was first added to the Pentagon 's Section 1260H military-linked companies list in January 2025 and remained listed after a review in June 2026 .
Compliance lawyer Mark Shi of Co-Effort Law Firm said courts have shown willingness to scrutinise US government evidence and grant interim relief in similar cases involving Hesai Group , DJI , and WuXi AppTec .
Alibaba Group Holding also has a case pending and was granted a temporary reprieve over a lobbying restriction last month.
The case will test whether broad ties to China 's industry ministry or state-asset regulator alone are legally sufficient to sustain a military-linked designation.
ChangXin Memory Technologies (CXMT), China's largest maker of dynamic random-access memory (DRAM) chips, filed a lawsuit on Friday, 29 August 2026 in a Washington federal court against the US Department of Defence, naming Defence Secretary Pete Hegseth as a defendant. The company is seeking removal from the Pentagon's Section 1260H list of Chinese companies allegedly linked to the military — a designation it has contested since being first added in January 2025.
A blacklist that survived review
CXMT was initially placed on the Section 1260H list in January 2025 and remained on it after a formal review concluded in June 2026. The list, maintained by the US Department of Defence, restricts American firms from doing business with designated entities on national-security grounds. For a memory chipmaker with global supply-chain ambitions, the listing carries significant commercial consequences.
The company's lawsuit joins a widening legal offensive by Chinese technology firms pushing back against what they describe as evidence-thin blacklisting. Legal experts say the pattern signals a strategic calculation: that US federal courts may offer more procedural recourse than diplomatic channels.
Why it matters
Mark Shi, a compliance lawyer at Shanghai-based Co-Effort Law Firm, said recent rulings involving Hesai Group, drone manufacturer DJI, and biotech firm WuXi AppTec indicated that judges were prepared to scrutinise the US government's evidence and grant interim relief. The CXMT case, he added, would specifically test whether a company's broad ties to China's industry ministry or state-asset regulator were sufficient grounds to label it a military-linked entity.
The question of 'to what extent such US national-security determinations remained subject to evidence, reasoned explanation and due process,' according to Shi, sits at the heart of the litigation. Courts have shown a willingness to hold the Department of Defence accountable, he noted.
The competitive backdrop
CXMT has emerged as a central figure in China's push toward semiconductor self-sufficiency, producing DRAM chips — including LPDDR6 variants — that directly compete with products from South Korean and US-aligned memory giants. Its blacklisting is widely seen as part of a broader US effort to constrain China's advanced chip ecosystem, spanning logic, memory, and equipment sectors.
Tech giant Alibaba Group Holding also has a case pending and was granted a temporary reprieve over a lobbying restriction last month, underscoring that even the largest Chinese conglomerates are navigating the same legal terrain.
What's next
The CXMT lawsuit is expected to proceed through the Washington federal court system, where the company will likely seek interim relief — similar to the temporary reprieves won by peers — while the merits of its delisting argument are heard. A favourable ruling could set a precedent that raises the evidentiary bar the Pentagon must clear before designating companies under Section 1260H.
Investors and industry observers will be watching whether the court grants provisional relief and how aggressively the Department of Defence defends the sufficiency of its evidence — outcomes that could reshape how US national-security blacklists are applied to the global semiconductor industry.
Point of View
Litigation becomes a tool to impose procedural costs on the Pentagon's designation process. What mainstream coverage underplays is that even partial legal victories — temporary injunctions, not full removals — can materially disrupt the blacklist's commercial effect by restoring access to US suppliers and investors during proceedings. For CXMT specifically, the stakes extend beyond one company: a ruling that demands higher evidentiary standards for Section 1260H listings could blunt one of Washington's sharpest tools in the semiconductor supply-chain war. The Pentagon's willingness to defend thin evidence in open court — or settle quietly — will signal how durable this instrument of tech-war pressure truly is.
NationPress
30 Aug 2026
Frequently Asked Questions
Why is CXMT suing the US Pentagon?
CXMT is suing the US Department of Defence to be removed from the Section 1260H list of Chinese companies with alleged military ties, a designation it disputes. The company was first added in January 2025 and remained on the list after a formal review in June 2026 .
What is the Pentagon's Section 1260H list?
The Section 1260H list is maintained by the US Department of Defence and identifies Chinese companies it considers to have ties to the military. Being listed restricts American entities from doing business with the designated firms and carries broad commercial and reputational consequences.
Have other Chinese tech firms won similar lawsuits?
Several Chinese firms have secured interim relief in comparable cases. Courts have shown willingness to scrutinise evidence in suits brought by Hesai Group , DJI , and WuXi AppTec , according to compliance lawyer Mark Shi of Co-Effort Law Firm . Alibaba Group Holding was also granted a temporary reprieve over a lobbying restriction last month.
What legal standard will the CXMT case set?
The case is expected to test whether a company's broad ties to China 's industry ministry or state-asset regulator are sufficient to sustain a military-linked designation. It will also determine to what extent US national-security decisions remain subject to evidence, reasoned explanation, and due process, according to Mark Shi .
Who is named as defendant in CXMT's lawsuit?
The US Department of Defence is the primary defendant, with Defence Secretary Pete Hegseth named individually. The lawsuit was filed in a Washington federal court on Friday, 29 August 2026 .
