China’s artificial intelligence industry is facing renewed uncertainty as growing bipartisan support in the US Congress for tighter semiconductor export controls threatens access to advanced Nvidia chips. The pressure has intensified following the resignation of Nvidia CEO Jensen Huang, whose efforts to preserve the company’s Chinese market access had made him an influential voice in Washington’s technology policy debate.
The developments triggered a sell-off in Chinese AI stocks on Friday, reflecting investor concerns that political pressure could further restrict China’s access to American computing technology. With lawmakers considering new legislation and senior officials facing questions over export enforcement, the dispute could deepen the technological divide between the world’s two largest economies.
Huang’s Departure Strengthens Calls for Tougher Export Controls
US House Speaker Mike Johnson said on Thursday that support was growing in Congress for restricting China’s access to advanced artificial intelligence chips.
Huang stepped down after reports emerged about an alleged romantic relationship with Alice Huang, a Chinese businesswoman whom US authorities suspect of spying for Beijing. Alice Huang was an executive at Megaspeed, an Nvidia partner suspected by the US government of helping China obtain advanced AI chips restricted under American export controls. Beijing has denied that she is a spy.
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The allegations have intensified scrutiny of Nvidia’s business relationships and the administration’s approach to semiconductor exports. Huang had consistently argued that allowing American companies to sell chips to Chinese customers would help keep them dependent on US technology rather than encourage the development of domestic alternatives.
However, lawmakers from both parties have questioned whether continued exports create national security risks, particularly given the potential military applications of advanced AI systems.
Johnson said export controls had become a major issue in Washington and expressed support for limiting China’s access to advanced technology. His comments suggest that the debate is increasingly moving towards a tougher congressional position.
Commerce Secretary Lutnick Faces Growing Political Pressure
The controversy has also placed US Commerce Secretary Howard Lutnick under scrutiny.
Senior White House officials have discussed whether Lutnick should be pushed out, according to two people familiar with the situation. The pressure follows criticism from lawmakers over the administration’s refusal to add dozens of Chinese companies to the US trade blacklist.
Some members of Congress have questioned whether the government is adequately overseeing Nvidia’s exports to China and enforcing restrictions designed to prevent sensitive technology from reaching organisations considered security threats.
The dispute reflects a broader disagreement within Washington over how to approach China’s technological rise. Some policymakers favour maintaining commercial access to the Chinese market, arguing that US companies should remain competitive and influential. Others believe that allowing access to advanced processors could strengthen China’s military and strategic capabilities.
Nvidia’s position makes the debate particularly important. Its advanced processors are widely used to train sophisticated AI models, giving the company a central role in the global competition to develop increasingly powerful artificial intelligence systems.
Chinese AI Stocks Fall as Investors Fear New Restrictions
Markets reacted quickly to the possibility of tighter controls.
Shares in Chinese AI model developers and technology suppliers fell sharply on Friday as investors reassessed the risks facing companies that depend on access to American semiconductor technology.
AI model developers Z.AI and MiniMax Group dropped 12% and 8.4%, respectively. Data centre suppliers Zhongji Innolight and Eoptolink Technology, both heavily reliant on US markets, also lost more than 8%.
The sell-off highlights how closely China’s AI ambitions remain connected to international semiconductor supply chains.
Advanced Nvidia chips provide the computing power needed to develop and operate sophisticated AI models. Any restrictions on direct purchases, overseas computing access or related services could increase costs for Chinese technology companies and slow their development plans.
The uncertainty has also encouraged some Chinese AI companies to explore alternative arrangements. Reports indicate that firms are attempting to rent Nvidia-powered computing capacity outside China because they fear Washington could restrict their ability to access the company’s chips remotely.
Such arrangements have become an increasingly important part of the wider export-control debate, as restrictions on physical chip shipments do not necessarily prevent foreign companies from accessing computing power through overseas data centres.
Four Proposed Bills Could Reshape US Chip Export Policy
Congressional Republicans are seeking to introduce additional restrictions through the annual National Defense Authorization Act, a major defence funding measure that typically receives bipartisan support.
A Senate aide said Republicans were interested in attaching new export-control provisions to the legislation, potentially giving the proposals a stronger chance of becoming law.
Lawmakers are also pressing colleagues to advance at least four separate bills addressing different aspects of China’s access to advanced semiconductor technology.
The proposed AI Overwatch Act would give Congress greater authority over decisions involving advanced AI chip exports.
The Chip Security Act would require companies to track the locations of advanced AI processors, helping authorities identify potential smuggling and unauthorised transfers.
The Match Act would pressure US allies to restrict sales and maintenance of advanced semiconductor manufacturing equipment destined for China. Its objective is to prevent Beijing from obtaining critical chipmaking technology through suppliers outside the United States.
The Remote Access Security Act would give the Commerce Department additional tools to restrict Chinese companies from renting computing capacity at overseas data centres to access Nvidia chips.
Together, the proposals suggest that Washington’s approach could extend beyond controlling physical exports. Policymakers are increasingly examining how Chinese companies might obtain access to American computing technology through third countries, cloud services and international commercial arrangements.
Congressional Scrutiny of Nvidia Is Far From Over
Huang’s resignation is unlikely to end the investigation into Nvidia’s activities or its relationship with Chinese business partners.
Sunny Cheung, an analyst at the Washington-based Jamestown Foundation, said Congress could still subpoena Huang and that Nvidia should conduct an independent investigation to establish whether the concerns extend beyond the former chief executive.
Cheung also suggested that Huang’s departure could weaken Nvidia’s influence in Washington and strengthen support for legislation restricting advanced chip exports to China. The company’s new leadership may reconsider its Chinese market strategy as it attempts to rebuild confidence among American policymakers.
Huang is separately expected to testify before Congress before Thanksgiving, which falls on November 26. House Foreign Affairs Committee Chairman Brian Mast said on Thursday that congressional staff had spoken with Nvidia about arrangements for the testimony.
Mast and two other senior House Republicans had already requested a closed-door briefing from Huang about his relationship with Alice Huang.
His departure therefore does not remove him from the congressional investigation. Instead, it could leave him more directly exposed to questioning about the company’s business relationships and export-control practices.
What Happens Next?
The immediate question is whether Congress can translate growing political support for tighter export controls into legislation. The annual defence authorisation bill offers Republicans a potentially effective route, while the four proposed measures could expand Washington’s ability to monitor chip shipments, overseas computing access and semiconductor equipment sales.
For China, the implications extend beyond Nvidia. Restrictions could affect the computing infrastructure available to domestic AI developers and increase the cost of competing with American technology companies.
For the United States, the challenge is balancing national security concerns with the commercial interests of its semiconductor industry. Tighter restrictions could limit China’s access to sensitive technology, but they could also reduce market opportunities for American companies and encourage Chinese competitors to accelerate their own development.
Nvidia now faces a particularly difficult transition. Without Huang’s leadership, the company may have to reassess its approach to China while navigating congressional investigations and a more restrictive political environment.
The wider dispute illustrates how artificial intelligence has become inseparable from geopolitical competition. As Washington increasingly treats advanced chips as strategic assets rather than ordinary commercial products, access to computing power is emerging as one of the central battlegrounds in the US-China relationship.
With information from Reuters.
