Suppliers responsible for parts of tech major Nvidia's H200 chips have reportedly paused production. This halt comes after Chinese custom officials blocked the entry of the advanced artificial intelligence processor's shipments into China, as reported by the Financial Times. Sources indicate that Nvidia was "caught by surprise" by this development, particularly as its initial shipments had only just arrived in Hong Kong earlier this week. Inquiries to China's General Administration of Customs and Nvidia for official statements did not receive immediate responses.

This situation puts Nvidia's suppliers in a difficult position, especially considering that the United States had approved the sale of Nvidia's H200 AI processors in China just last December. Parts manufacturers for these essential components are now expressing concern that Chinese authorities will continue to block shipments, potentially leading to significant write-offs. Analysts like Chu Wei-Chia from SemiAnalysis highlighted that the printed circuit boards specifically designed for H200 chips are highly specialized and cannot be repurposed for other products, exacerbating fears of excess, unusable production.

Nvidia CEO Jensen Huang had previously shown strong enthusiasm for the Chinese market, having actively lobbied both Washington and Beijing to secure approval for H200 chip sales. Following a signal from then-US President Donald Trump in December that the US would relent, Nvidia significantly ramped up production to meet an estimated one million orders from Chinese clients. Deliveries were initially scheduled for March, but their fate now remains uncertain amidst the current customs block.

Reports further detail that Chinese customs authorities in Shenzhen explicitly informed a logistics company this week that Nvidia's H200 chips are not permitted to enter the country. No specific reason was provided for this blockade, nor any indication of whether it constitutes a temporary measure or a permanent ban. Sources reveal that domestic technology companies within China have been cautioned against purchasing Nvidia chips and instead advised to prioritize domestic alternatives. There are also ongoing discussions among authorities regarding the possibility of granting limited access to H200 chips for major Chinese tech giants such as Tencent, Alibaba, and ByteDance, specifically for projects requiring higher performance and easier maintenance.

The repercussions extend beyond suppliers; Chinese clients are also reconsidering their H200 purchase plans due to the prevailing uncertainty. One supplier reported that existing orders for Nvidia's H200 chip have already been cancelled. This turn of events has inadvertently fostered a black market for Nvidia's more advanced, yet previously banned, B200 and B300 chips, as demand for high-performance AI hardware persists in China.