Bureau of Industry and Security — key-event: Expanded chip export controls, closing loopholes exploited by Nvidia's A800/H800 China-specific chips

Note: The source confirms the general claim about BIS expanding chip export controls and closing loopholes as of 2023, but the specific excerpt does not mention the A800/H800 chips or provide the October 2023 date. The source text cuts off before potentially reaching detailed information about specific chip models or the exact timing of updates. The claim is partially supported by the general statements about 2023 expansions and loophole closure, but the specific details about Nvidia's China-specific chips are not addressed in the provided excerpt.