High-bandwidth memory destined for artificial intelligence applications is reportedly making its way into mainland China by piggybacking on deliberately useless server processors. According to a new report, illicit supply chains are pairing advanced memory stacks from manufacturers like Samsung and SK hynix with low-performance chips that no data center would ever purchase for standard operations. This unusual arrangement allows the combined packages to skirt international export restrictions by disguising the shipments as ordinary, low-end processing units.
The operation exploits a specific technical exclusion established by the US Commerce Department's Bureau of Industry and Security. While regulations tightly control the export of standalone high-bandwidth memory to China, co-packaged chips that combine memory and logic are evaluated based on their overall processing performance. Smugglers capitalize on this regulatory gap by attaching high-value memory to exceptionally weak processors, successfully clearing customs before the hardware reaches clandestine workshops in Shenzhen.
Once the shipments arrive in mainland facilities, workers use controlled heat applications to desolder the valuable memory stacks from the decoy silicon. Despite high failure rates and the risk of cracking the delicate components during the heating process, the financial margins remain astronomical. A single high-bandwidth memory stack can command roughly $4,000 on the secondary market, creating a lucrative underground economy that continues to supply restricted hardware to buyers in the region.
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