Nvidia (NVDA) CEO Jensen Huang Confirms SK Hynix, Samsung, Micron Certified to Supply HBM4 for Vera Rubin AI Chip

On June 5, 2026, Nvidia (NASDAQ: NVDA) CEO Jensen Huang announced that the world’s three largest memory chip makers—SK Hynix, Samsung Electronics, and Micron Technology—have passed certification to supply the most advanced high-bandwidth memory (HBM4) chips for the company’s AI accelerators. Huang, arriving in Seoul for a multi-day visit, told reporters that all three suppliers are already in production and racing to support Nvidia’s next-generation AI chip, Vera Rubin. The approval clears the path for high-volume manufacturing of HBM4, a critical component that drastically increases data transfer speeds for artificial intelligence workloads. The three firms dominate the global memory semiconductor market and have been in intense competition for Nvidia’s HBM business as demand for AI computing infrastructure surges.