US chipmaker NVIDIA has hired 200 people in China to expand its research and development in autonomous AI-driven cars.The company now employs around 4,000 people in China and has strengthened after-sales and software development teams.China is a crucial market for NVIDIA, generating $5.4 billion in revenue in the last quarter alone.NVIDIA's strategic partner, TSMC, is in discussions to produce its Blackwell AI chips at its Arizona facility.