- Seong Gyu-dong, 68, holds a 28% stake in I.O. Laser, making him the largest shareholder of the company listed on Korea's KOSDAQ.
- I.O. Laser's revenue grew 19% to 381 billion KRW in 2025, driven by increased demand for laser marking equipment from memory chip makers like Samsung.
- Analysts project further growth in the company's CSM business due to rising demand for specialized laser marking for AI chips, indicating potential advancements in laser annealing technology for NAND processing.