US and Taiwan File Charges as Banned Nvidia B300 Chips Found Operating in China

Israeli security firm Lava found 32 Nvidia B300 GPUs, banned from export to China, running behind China Telecom addresses, discovered through Nvidia's DCGM Exporter, a GPU-monitoring tool some operators leave online without password protection. The chips' presence in China is part of a broader pattern documented through separate enforcement actions. US federal prosecutors indicted Supermicro's Taiwan general manager Ruei-Tsang Chang and two others for allegedly conspiring to divert roughly $2.5 billion in Supermicro servers containing Nvidia Blackwell-class chips to Chinese buyers via a Southeast Asian pass-through company. Taiwan's Keelung District Prosecutors' Office separately indicted nine people for a five-step scheme that defeated Supermicro's compliance controls from the inside, exploiting a regime designed to track every unit. B300 servers are selling for approximately $1 million in China, nearly double US prices. In a related development, China has drafted export control rules of its own covering AI processor designs at 14nm or below, DRAM at 18nm or below, advanced 3D NAND designs, and interconnects for AI clusters exceeding 10,000 accelerators, with public comment open until mid-November.