SK hynix designs, manufactures, and sells memory semiconductors, primarily DRAM and NAND flash memory. DRAM provides the rapid data access processors need to execute tasks, while NAND provides non-volatile storage for devices like smartphones, PCs, and data center equipment. The company focuses on High Bandwidth Memory (HBM), a premium DRAM variant used in AI accelerators and graphics processing units. SK hynix also sells enterprise solid-state drives through its Solidigm subsidiary and operates a small foundry business for non-memory chips. The business model is highly capital-intensive and cyclical, as profitability depends on global supply and demand for memory. SK hynix must continuously invest in new fabrication plants and advanced process technology to increase the number of bits produced per wafer and lower the cost per bit. The company sells directly to global technology manufacturers, cloud service providers, and consumer electronics companies. SK hynix is currently expanding production capacity to meet AI-driven demand by building new manufacturing clusters in South Korea and establishing an advanced packaging facility in the United States. These investments support long-term demand for high-performance memory products in the data center and artificial intelligence markets.