Smugglers Bypass Export Controls by Harvesting HBM from Low-End Processor Packages
Illicit networks exploit regulatory loopholes to supply restricted AI memory to Chinese markets.
1Regulatory Loophole Exploitation
Smugglers are bypassing United States export controls by bonding restricted HBM memory to low-end server processors. Because December 2024 rules exempt HBM already packaged with a processor, the combined unit avoids classification as a restricted item. The computing capability is assessed by the weak processor, allowing the package to fall below restricted thresholds.
2The Packaging Supply Chain
A broker operating a chip-design firm designs underpowered processors to justify ordering premium HBM. Specialist packaging firms in Taiwan, South Korea, and Southeast Asia then bond these memory stacks to the processors. These finished packages are declared under the processor's classification code, facilitating legal transit to Hong Kong before entering mainland China.
3Logistics and Physical Transit
Once the packages arrive in Hong Kong, they are transported into mainland China through informal channels. Couriers, including daily commuters and toll workers, carry the hardware in luggage or car boots. This decentralized transit method avoids formal customs scrutiny, allowing the restricted components to reach workshops located within the Chinese mainland for processing.
4Thermal Extraction Process
Inside Chinese workshops, accomplices heat the packages until the solder softens to separate the HBM from the processor. This process is technically demanding, as improper heating can warp or crack the memory stacks. Despite the risk of damaging the hardware, the high profit margins on HBM3E are sufficient to offset these potential losses.
5Surging HBM3E Market Value
HBM3E memory has seen a massive price increase, rising from a few hundred dollars a year ago to approximately $4,000 per unit today. A single AI chip package requires six to eight HBM stacks, meaning the memory alone costs between $24,000 and $32,000. This scarcity drives the illicit trade and high demand.
6Brokers and Strategic Motivation
Brokers involved in the trade often leverage contacts within legitimate supply chains of companies like Samsung and SK hynix. Rather than identifying as smugglers, some brokers view their activities as a contribution to China's technological development. They operate in hubs like Shenzhen, where they coordinate the extraction and distribution of these critical AI components.
7Broader Export Control Challenges
This HBM scheme is part of a wider trend of restricted hardware reaching China. Security firm Lava previously identified 32 NVIDIA Blackwell Ultra B300 units operating within China Telecom's network. These units, which contain 288GB of HBM3E, were discovered via an unsecured management tool, highlighting the ongoing difficulty of enforcing global export restrictions.
8Systemic Enforcement Limitations
Current export rules were designed for finished products, failing to account for the separation of processors from memory. As China's domestic HBM development remains slow, illicit channels continue to bridge the gap. NVIDIA maintains that smuggling is a non-factor, yet the reliance on informal networks suggests significant gaps in current international enforcement mechanisms.