SK Hynix

SK Hynix is the world's second-largest memory semiconductor manufacturer, producing DRAM, NAND flash, and High Bandwidth Memory (HBM) chips critical to AI infrastructure. A subsidiary of South Korea's SK Group since 2012, the company has become a leading supplier of HBM3E and next-generation HBM4 chips to AI accelerator makers including NVIDIA. Its manufacturing operations have notable dependencies on specialty gases such as helium, sourcing a significant share from Qatar.