Core Viewpoint - Chip stocks experienced a rally in the afternoon, with notable increases in share prices for companies like SMIC, Hua Hong Semiconductor, and Jingmen Semiconductor, amidst concerns regarding security vulnerabilities in NVIDIA's computing chips [1] Group 1: Stock Performance - SMIC (00981) rose by 3.39%, reaching HKD 51.9 [1] - Hua Hong Semiconductor (01347) increased by 2.13%, reaching HKD 40.85 [1] - Jingmen Semiconductor (02878) saw a rise of 1.1%, reaching HKD 0.46 [1] Group 2: Security Concerns - Recent reports revealed serious security issues with NVIDIA's computing chips [1] - U.S. lawmakers have called for advanced chips exported from the U.S. to include "tracking and positioning" features [1] - Experts in the U.S. AI sector indicated that NVIDIA's "tracking and positioning" and "remote shutdown" technologies are now mature [1] Group 3: Regulatory Actions - To ensure network and data security for Chinese users, the National Internet Information Office has engaged with NVIDIA regarding the security risks associated with the H20 computing chip sold to China [1] - NVIDIA has been requested to provide explanations and relevant documentation concerning the security vulnerabilities and backdoor risks of the H20 chip by July 31, 2025 [1]