Nvidia B300 Chips Found on China Telecom Network Despite Export Ban

2026-10-24 · Tech · China · Israel

Israeli security firm Lava said it detected 32 Nvidia Blackwell Ultra B300 chips through monitoring systems linked to the network of China Telecom, a state-owned telecommunications company. The B300 is one of Nvidia's most powerful data-center chips and is barred from being sold to China under U.S. export controls. The findings, first reported by The Information, do not establish where the components are physically located, leaving open whether the chips are inside China or reachable from abroad. The discovery points to gaps in enforcement of export rules meant to keep top-tier AI hardware out of Chinese hands.

Why it matters：If top-tier AI accelerators are reaching restricted buyers, export controls are failing at their core purpose, with consequences for chipmakers, enforcement agencies and the pace of the AI buildout on both sides.

Key points

• Lava found 32 Blackwell Ultra B300 chips, one of Nvidia's most powerful data-center parts.
• The chips are export-barred from sale to China, and their physical location is unclear.

Sources (original reporting)

• The Information
• Tom's Hardware

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