Correction of Stock Option Grant: Exercise Period Shortened and Fair Value Adjusted (371→349 KRW)

Correction report on stock option grant: total 8.5 million options granted to two groups (18 executives, 75 employees)
Exercise period shortened from 8 years (2028-2036) to 3 years (2028-2031)
Fair value calculation assumptions changed: expected exercise period 6→3.5 years, risk-free rate 3.826%→3.542%, volatility 70.54%→71.96%
Fair value per share decreased from KRW 371 to KRW 349
Exercise price KRW 591, closing price on grant date KRW 571 (out-of-the-money)
Pending reverse stock split (12:1) and stock split (5:1) will automatically adjust option quantity and exercise price