CXMT Sues the Pentagon to Escape the 'Chinese Military Company' Blacklist

China’s largest memory chipmaker has taken the U.S. Defense Department to court. On Friday, August 28, ChangXin Memory Technologies (CXMT) filed suit in the U.S. District Court for the District of Columbia seeking to overturn its designation as a “Chinese military company” under Section 1260H of the National Defense Authorization Act — the Pentagon blacklist that can trigger U.S. government contracting restrictions and scare off Western suppliers, investors, and partners. Reuters broke the story on Saturday, and it lands at a moment when CXMT is arguably the most strategically important semiconductor firm in China’s push for memory self-sufficiency.

What CXMT is arguing

The complaint is blunt. CXMT says the Pentagon’s decision was “arbitrary,” lacked evidentiary support, and violated the company’s due-process rights under U.S. administrative law. “CXMT is not affiliated with the Chinese military,” the company states in the filing. “CXMT designs, produces, and sells its DRAM chips for civilian and commercial use, not for military use.”

The suit names three senior officials as defendants: Defense Secretary Pete Hegseth, Deputy Defense Secretary Steve Feinberg, and Assistant Secretary of Defense for Industrial Base Policy Michael Cadenazzi. According to the complaint, CXMT spent more than a year quietly feeding the Pentagon information to challenge the designation, first imposed in January 2025 under the Biden administration, before concluding that litigation was the only remaining path.

The strangest fact in the case

Buried in the timeline is the detail that makes this lawsuit genuinely unusual — and gives CXMT’s lawyers unusually clean process-integrity ammunition.

In February 2026, the Pentagon published a notice saying CXMT was being removed from the Section 1260H list. Then it withdrew that notice the same day, without explanation. Four months later, on June 8, 2026, the Defense Department formally relisted CXMT alongside Yangtze Memory Technologies (YMTC), China’s NAND flash champion, in its updated public inventory of designated entities.

Neither the reporting nor the complaint explains what happened in those hours. But procedurally, it hands CXMT a pointed question to put to the government in court: what changed between the morning the department decided CXMT didn’t belong on the list and the afternoon it decided the opposite? If the Pentagon cannot articulate a documented, on-the-record reason for the reversal, the designation becomes vulnerable under the Administrative Procedure Act’s arbitrariness standard — the same legal theory that has humbled other agency decisions in recent years.

Why this is existential for CXMT

Section 1260H, created by the FY2024 NDAA, requires the Defense Department to publish companies it determines are operating in the United States as “Chinese military companies.” Unlike export controls, the list does not itself ban anything. Its power is corrosive rather than direct: designation can trigger government contracting restrictions, and it signals to every American and allied firm that doing business with the listed company carries reputational and regulatory risk. For a chipmaker that needs Western equipment, materials, and customers, that is a slow squeeze.

As one analyst quoted by Reuters put it: CXMT is China’s biggest player in the DRAM space, and striking the designation “is survival for them — otherwise, they are completely cut off.”

The timing makes the stakes concrete. CXMT has been on a steep trajectory: research cited by Tom’s Hardware projects the company will finish 2026 at roughly 350,000 wafer starts per month of DRAM capacity — just 25,000 WSPM behind Micron — putting China on track to become the world’s second-largest DRAM-producing nation. SemiAnalysis estimated in June that CXMT’s global DRAM share will climb from about 9% in 2025 to 12% by 2027. Earlier this week, the same company confirmed its LPDDR6 mobile memory will debut inside Xiaomi’s 18 Fold flagship — the first time a Chinese DRAM maker has shipped a next-generation memory generation in a premium phone alongside Samsung, SK Hynix, and Micron. A company at that inflection point cannot afford to wear a “military company” label in every jurisdiction it touches.

The precedent stack: Xiaomi won, and everyone noticed

CXMT is not experimenting. It is following a playbook that has already worked.

In 2021, Xiaomi sued the Pentagon over its placement on a predecessor blacklist (the Communist Chinese Military Companies list under Executive Order 13959). A U.S. district judge blocked the designation, calling the government’s process deeply flawed, and Xiaomi was eventually removed. The victory demonstrated that Chinese firms can win procedural challenges in U.S. courts even when the political winds are against them.

Alibaba drew the same conclusion, filing a similar challenge to its own 1260H designation in June. Now CXMT has joined, making the 1260H list the DoD tool that China’s largest technology firms are demonstrably willing to litigate over. Legal analysts tracking the case assess CXMT’s odds as fair but uncertain — past precedents cut in the company’s favor, but the Defense Department has since tightened its administrative record-keeping in response to earlier losses.

One more precedent worth watching: just this week, a U.S. judge struck down the Pentagon’s separate designation of Anthropic as a supply-chain risk, calling the government’s actions unlawful retaliation against a critic. Two different legal theories, but a shared signal — courts in 2026 are showing little deference to Pentagon blacklisting decisions that arrive with thin records.

What comes next

The Pentagon’s response brief is the tell. To defend the designation, the department will have to articulate on the record what evidence supports CXMT’s listing — and, awkwardly, why it once concluded the opposite in February. Watch for three things:

1. The government’s justification for the February reversal. If no documented rationale exists, CXMT’s arbitrariness claim gains real teeth.
2. Discovery pressure. Xiaomi’s case never reached deep discovery; if CXMT’s does, the Pentagon’s internal deliberations could be exposed.
3. Market reaction. A prolonged fight adds uncertainty for the memory supply chain just as CXMT’s LPDDR6 ramps into Xiaomi handsets and DRAM demand from AI data centers keeps climbing — Samsung currently leads the DRAM market with about 39% share in Q2 2026, and every point of share CXMT defends matters.

Why it matters

This lawsuit is the sharpest test yet of whether Section 1260H — the centerpiece of the Pentagon’s public-facing campaign against China’s military-civil fusion strategy — can survive contact with U.S. courts. If CXMT wins, the 1260H list becomes significantly harder to maintain, and a wave of delisting litigation from designated Chinese firms is likely to follow. If the Pentagon wins, the department gains a validated template for designations with teeth.

Either way, the case formalizes something new: the U.S.–China chip war is no longer fought only with export licenses and tariffs. It is now a docket war, fought motion by motion in federal court — and China’s most important memory company just decided it has nothing left to lose.