WASHINGTON, Nov. 10 -- The controversy surrounding Nvidia chief executive Jensen Huang's reported relationship with a woman suspected of having links to Chinese intelligence has renewed scrutiny of the technological rivalry between the United States and China, particularly Washington's efforts to restrict Beijing's access to advanced artificial intelligence (AI) chips.
Huang acknowledged on November 8 that he had an extramarital relationship with a woman who has reportedly been investigated by US authorities over suspected intelligence links to China. The allegations have raised questions about the security of sensitive semiconductor technology and whether existing export controls are sufficient to prevent advanced American chips from reaching Chinese companies.
Nvidia's board has established an independent committee to examine whether Huang was targeted by a foreign intelligence operation and whether confidential information or national security interests were compromised. The company has maintained that it has no reason to believe its proprietary information or national security was affected.
China has rejected the espionage allegations, describing them as baseless. The allegations against the woman have not been independently established.
The controversy comes against the backdrop of a decade-long struggle over semiconductor technology, in which Washington has sought to limit China's access to the sophisticated processors and manufacturing equipment needed to develop powerful AI systems.
Nvidia dominates the market for graphics processing units used to train and operate advanced AI models. However, the company depends on Taiwan Semiconductor Manufacturing Company (TSMC) to manufacture its most sophisticated processors.
TSMC, in turn, relies on specialised lithography equipment produced by Dutch company ASML. Its extreme ultraviolet lithography machines are essential for manufacturing some of the world's most advanced semiconductor chips.
This concentration of technological capabilities among a handful of companies has enabled the United States and its allies to impose restrictions on China's access to critical components of the semiconductor supply chain.
Washington began pressing the Netherlands in 2018 to restrict exports of ASML's most advanced lithography equipment to China. The Dutch company has maintained that it has never supplied an extreme ultraviolet lithography machine to a Chinese customer.
In October 2022, the United States introduced sweeping export controls restricting China's access to advanced AI processors and semiconductor manufacturing equipment, citing concerns that the technology could strengthen Beijing's military capabilities.
The restrictions also limited the involvement of American companies and citizens in supporting advanced semiconductor manufacturing at certain Chinese facilities without government approval.
Nvidia responded by developing modified processors specifically for the Chinese market, including its A800 and H800 chips, designed to comply with American performance restrictions.
However, Washington tightened the rules in October 2023, effectively blocking exports of those models. Nvidia subsequently introduced the H20 processor for Chinese customers, although it too became subject to additional licensing requirements in April 2025.
The restrictions have significantly affected Nvidia's position in China while encouraging Chinese technology companies to develop domestic alternatives.
Huawei has emerged as an important competitor through its Ascend series of AI processors, although its most advanced products continue to face technological limitations compared with Nvidia's leading chips.
According to industry research reported by Reuters, Nvidia's share of China's data-centre AI chip market fell to 34 per cent during the first half of 2026, while Huawei accounted for approximately 28 per cent.
Chinese companies have also accelerated efforts to develop indigenous semiconductor manufacturing equipment. In December 2025, Reuters reported that researchers in Shenzhen had developed a prototype extreme ultraviolet lithography system with assistance from former ASML engineers.
Although the prototype was capable of generating the required ultraviolet light, it had not yet demonstrated the ability to manufacture functional advanced chips. Researchers reportedly considered 2030 a more realistic target for achieving that capability.
Meanwhile, American authorities have investigated several cases involving the alleged diversion of restricted semiconductor products to China through third countries.
In March 2026, federal prosecutors in New York charged Supermicro co-founder Yih-Shyan Liaw and two others over an alleged scheme to divert servers containing restricted Nvidia processors to China.
According to prosecutors, approximately $2.5 billion worth of servers were purchased through a company in Southeast Asia during 2024 and 2025 using documents that falsely identified the intended end user.
The indictment alleged that the equipment was subsequently repackaged and transported to China. Investigators also claimed that non-functional replica servers were used to deceive auditors inspecting warehouses where the original equipment was supposed to be stored.
Liaw has pleaded not guilty. Supermicro, which was not charged in the case, has said it is cooperating with investigators.
In a separate case, American prosecutors alleged that a Texas-based businessman and his company were involved in illegally exporting or attempting to export at least $160 million worth of Nvidia processors by relabelling them under a fictitious brand.
The latest controversy involving Huang has also drawn attention to Singapore-based cloud computing company Megaspeed, which has faced scrutiny over suspicions that it facilitated Chinese access to restricted Nvidia technology.
Reports have linked the woman at the centre of the controversy to the company, which has imported substantial quantities of Nvidia products and provided computing services to Chinese customers.
Megaspeed has denied allegations of illegal diversion, while Nvidia has maintained that its internal checks found no evidence that the company had unlawfully transferred restricted processors to China.
The allegations have intensified pressure on American lawmakers to strengthen oversight of semiconductor exports.
Three legislative proposals are under consideration as part of the US defence policy process. The AI Overwatch Act would expand congressional oversight of advanced chip exports, while the Chip Security Act would require additional mechanisms to verify the location of exported processors.
The MATCH Act seeks closer coordination with American allies to restrict exports of sensitive semiconductor manufacturing equipment to China.
Supporters argue that stronger controls are necessary to prevent advanced American technology from strengthening China's military and intelligence capabilities.
However, critics of tighter restrictions, including Huang, have argued that excluding American companies from the Chinese market could accelerate Beijing's development of domestic alternatives and weaken the long-term competitiveness of US semiconductor manufacturers.
Huang has previously questioned the effectiveness of export controls, arguing that the restrictions have reduced Nvidia's market share while encouraging Chinese customers to adopt locally manufactured processors.
The controversy has also become a subject of congressional scrutiny, with Huang expected to appear before a closed-door meeting of House committees on November 18.
The developments come ahead of a planned meeting between US President Donald Trump and Chinese President Xi Jinping at the Asia-Pacific Economic Cooperation summit in Shenzhen.
Semiconductor exports, trade restrictions and China's controls on rare earth materials are expected to feature in discussions between the two leaders.
The latest allegations surrounding Nvidia's chief executive have added a new dimension to the technological confrontation, raising concerns not only about access to advanced AI hardware but also about the security of companies and executives operating at the centre of the global semiconductor industry.
Published by HT Digital Content Services with permission from Millennium Post.