SK hynix Inc. is one of the world’s largest memory semiconductor companies engaged in the design, manufacture and sale of advanced memory semiconductors. The company’s core business involves DRAM and NAND flash memory products used in a wide range of electronic devices including graphics cards, PCs, data center servers, mobile devices and consumer electronics. SK hynix also conducts foundry business through its wholly-owned subsidiaries SK hynix system ic and SK…
SK hynix Inc. is one of the world’s largest memory semiconductor companies engaged in the design, manufacture and sale of advanced memory semiconductors. The company’s core business involves DRAM and NAND flash memory products used in a wide range of electronic devices including graphics cards, PCs, data center servers, mobile devices and consumer electronics. SK hynix also conducts foundry business through its wholly-owned subsidiaries SK hynix system ic and SK keyfoundry.
The company generates revenue primarily from the sale of DRAM and NAND flash memory products with various configuration options, architectures and performance characteristics tailored to application- and customer-specific needs. Revenue is also derived from its foundry business through subsidiaries. In the first quarter of 2026, DRAM sales accounted for 77.3% of total revenue while NAND flash memory contributed 22.0%, with other products making up the remainder. SK hynix serves a global customer base including leading technology companies, AI accelerator manufacturers, cloud service providers and OEMs across multiple sectors.
The company operates through the following segments: DRAM and NAND flash memory.
- DRAM: This segment includes the design, manufacture and sale of dynamic random access memory products such as server DRAM, graphics memory, mobile memory, PC memory and consumer memory. Advanced DRAM offerings include HBMs like HBM3E and HBM4, which are optimized for high-performance applications such as GPUs, AI and high-performance computing. The segment also provides traditional DDR5, LPDDR5 and GDDR7 products for diverse computing and storage needs.
- NAND flash memory: This segment focuses on non-volatile memory products including SSDs, eSSDs, UFS, eMMC and MCP formats. SK hynix manufactures NAND flash using triple-level cell and quad-level cell technologies, with ongoing transitions to 238 and 321 layer technologies for higher density and performance. Following the acquisition of Intel’s NAND flash memory and storage business, the company operates the acquired business in the United States under the brand name Solidigm, which specializes in high-end eSSD solutions for cloud and hyperscale data centers.
SK hynix holds a strong position in the global memory semiconductor industry, ranking second in DRAM with a 29.1% revenue market share and second in NAND flash memory with an 18.5% revenue market share in the first quarter of 2026 according to IDC. The company is the global leader in the HBM market with a 56.4% revenue market share in the same period. Competitive advantages include technological leadership in high-value products such as HBM, server DRAM and eSSD, advanced R&D capabilities, state-of-the-art production facilities in Korea and China, and strong long-term relationships with key customers.
The company serves a global customer base consisting of leading manufacturers and OEMs of consumer electronics, AI accelerators, communications equipment, PCs, servers and workstations. Specific customers include NVIDIA Corporation, with whom SK hynix announced a technology partnership in June 2026 to advance next-generation memory solutions. Additional customers span major cloud service providers, system OEMs and technology companies across the United States, China, Asia, Europe and Korea.