China hits Nvidia with antitrust violation tied to Mellanox acquisition — fines could reach billions
Sep 15, 2025
Key Points
- China's antitrust regulator finds Nvidia violated anti-monopoly law over its 2020 Mellanox acquisition, potentially exposing the chipmaker to fines up to 10% of global revenue.
- Nvidia faces a structural trap: US export controls forced it to halt AI chip shipments to China, violating supply guarantees it made to Beijing to secure the original deal approval.
- The antitrust finding arrives amid US-China trade tensions and negotiations, signaling Beijing is weaponizing regulatory leverage as semiconductor access becomes a geopolitical flashpoint.
Summary
China's antitrust regulator has found that Nvidia violated the country's anti-monopoly law in connection with its 2020 acquisition of Mellanox Technologies, an Israeli networking gear maker. The Wall Street Journal first reported the finding.
The State Administration for Market Regulation opened the probe in December and the investigation remains ongoing. Nvidia faces a structural bind, according to antitrust lawyers familiar with the case. The company agreed to supply conditions when Beijing initially approved the Mellanox deal. But the Biden administration's subsequent export controls on advanced chips to China forced Nvidia to halt shipments of its most powerful AI chips to the country. That compliance with US law exposed Nvidia to criticism from Beijing for violating its own supply guarantees.
Nvidia said in a statement that it complied with law and will continue to cooperate with government agencies evaluating the impact of export controls.
Why Mellanox mattered
Nvidia bought the networking hardware maker before the AI boom. As Nvidia scaled massive GPU data centers, networking gear became critical infrastructure. Nvidia's subsequent dominance in AI chips, and the value unlocked from the acquisition, made it an obvious target once geopolitical tensions around semiconductor access intensified.
Timing
The antitrust finding arrived just hours before US Treasury Secretary Scott Bessent announced that US and Chinese negotiators had reached a framework deal on TikTok following two days of trade talks. Both countries are running against a Wednesday deadline to finalize TikTok's operational status in the United States.