1. China Initiates Anti-Dumping Probe Against US Analog Chips

• China's Ministry of Commerce announced an anti-dumping investigation into US-made general interface and gate driver chips, citing price suppression (2022-2024 prices fell 52% while imports rose 37%).

• The probe targets Texas Instruments (TI), Analog Devices (ADI), Broadcom, and ON Semiconductor, whose products dominate 41% of China's market.

• A-shares surged: Domestic chipmakers like Shanghai Belling (600171.SH) and SG Micro (300661.SZ) rallied over 10%, benefiting from potential market shifts.

2. China's Countermeasures Against US Export Restrictions

• The US added 23 Chinese firms (including semiconductor firms Fudan Microelectronics and Hualing) to its Entity List on September 12.

• China retaliated with dual investigations:

• Anti-dumping probe on US analog chips (effective Sept. 13, 2025).

• Anti-discrimination investigation into US export controls on China’s IC sector.

• Industry associations (e.g., China Semiconductor Industry Association) backed the move, calling for fair competition.

3. OpenAI's AI Chip Demand Disrupts Global Supply Chains

• OpenAI placed $500B orders with Broadcom and TSMC for AI chips, monopolizing 5nm production lines until 2030.

• Nvidia's H100 GPUs were "hijacked", sparking shortages for other tech firms.

• Oracle's servers overwhelmed: OpenAI’s $1T compute demand strained cloud providers, pushing smaller firms out.

4. Domestic AI Chipmakers Gain Traction Against Nvidia

• Alibaba and Baidu expanded self-developed AI chips (e.g., Kunlun P800) to reduce reliance on Nvidia.

• Baidu secured a $1B order from China Mobile for AI inference chips.

• Nvidia's China revenue dropped 24% in Q2 2025 amid US export curbs.

5. TSMC's 2nm Chips Enter Mass Production

• TSMC's 2nm yield exceeded 90%, with Nvidia and AMD as key clients.

• US fabs ramped up production, reducing reliance on Taiwan amid geopolitical tensions.