SK Hynix has once again demonstrated its technological leadership in the global memory semiconductor market, recording its highest-ever operating results in 2025.

SK Hynix announced its annual business performance for 2025 through a public disclosure on the 28th.

According to this, sales increased 46.8% year-on-year to KRW 97.1467 trillion, operating profit increased 101.2% year-on-year to KRW 47.2063 trillion, and net profit increased 116.9% year-on-year to KRW 42.9479 trillion. The operating profit margin reached 49%, and the net profit margin reached 44%.

This performance significantly exceeds the previous record set in 2024.

Sales increased by more than 30 trillion won compared to the previous year, and operating profit nearly doubled, setting a new record for annual performance.

It is evaluated that the strategy of high value-added memory products such as HBM (high bandwidth memory) in response to the expansion of demand for AI semiconductors was effective.

The fourth quarter performance is also notable.

Sales in the fourth quarter increased 66.1% year-on-year to KRW 32.8267 trillion, and operating profit increased 137.2% year-on-year to KRW 19.1696 trillion. Net profit reached KRW 15.246 trillion, a 90.4% increase year-on-year, achieving the highest quarterly performance ever.

Demand for both general-purpose memory and HBM for servers expanded simultaneously, leading to a 34% increase in sales and a 68% increase in operating profit compared to the previous quarter. The operating profit margin also reached a record high of 58%.

In the DRAM division, HBM sales more than doubled year-on-year, leading to improved performance.

We also strengthened our competitiveness in the server memory market through the mass production of 10nm-class 6th generation (1cnm) DDR5 and the development of 256GB DDR5 RDIMM.

The NAND division also recorded its highest annual sales, driven by the development of 321-layer QLC products and increased demand for enterprise SSDs.

SK Hynix predicts that the AI market will shift from learning-centered to inference-centered, and demand for high-performance memory will continue to expand.

Accordingly, while ensuring a stable supply of HBM3E and HBM4, the company plans to accelerate the development of next-generation products, including custom HBM. Production infrastructure, including the Cheongju M15X and the Yongin Semiconductor Cluster, will also be expanded in parallel.

SK Hynix also announced a large-scale shareholder return policy based on its record-breaking performance.

Including an additional dividend of 1,500 won per share, the total dividend for fiscal year 2025 is 2.1 trillion won. Furthermore, the company has declared its commitment to enhancing shareholder value by canceling all 15.3 million treasury shares.

SK Hynix President Song Hyun-jong stated, “Based on our differentiated technological competitiveness, we will simultaneously achieve sustainable growth and enhance shareholder value,” and “We will strengthen our role as a key infrastructure partner in the AI era.”