Nvidia CEO makes surprise trip to China as House probes whether it violated chip sale rules
1. Nvidia's CEO met with DeepSeek's founder amid U.S. export probe. 2. A House committee investigates Nvidia's sales to China and national security threats. 3. Nvidia anticipates a $5.5 billion impact from new chip sales restrictions. 4. Stock declined 1% amid broader market turmoil and tariff pressures. 5. China's market remains crucial for Nvidia's growth, emphasized during Huang's visit.