MX · MAGNACHIP SEMICONDUCTOR Corp

In accordance with his appointment as the Issuer's Chief Executive Officer and principal executive officer and as a director of the Issuer, Mr. Lee was granted an initial equity award under the Issuer's 2020 Equity Incentive Plan (as amended). Each grant will vest over four years, with a one-year cliff vesting period, subject to Mr. Lee's continued service through each applicable vesting date.

See above explanation.

In accordance with his appointment as the Issuer's Chief Executive Officer and principal executive officer and as a director of the Issuer, Mr. Lee was granted an initial equity award under the Issuer's 2020 Equity Incentive Plan (as amended). Each grant will vest over four years, with a one-year cliff vesting period, subject to Mr. Lee's continued service through each applicable vesting date.

This transaction represents the withholding by the Issuer of 3,333 shares of common stock to satisfy tax withholding obligations incurred by the Reporting Person upon the vesting of 7,000 shares of common stock originally awarded to the Reporting Person on June 1, 2024.

This transaction represents the withholding by the Issuer of 4,761 shares of common stock to satisfy tax withholding obligations incurred by the Reporting Person upon the vesting of 10,000 shares of common stock originally awarded to the Reporting Person on June 1, 2024.

This transaction represents the withholding by the Issuer of 6,121 shares of common stock to satisfy tax withholding obligations incurred by the Reporting Person upon the vesting of 12,508 shares of common stock originally awarded to the Reporting Person on February 16, 2023.

This transaction represents the withholding by the Issuer of 2,778 shares of common stock to satisfy tax withholding obligations incurred by the Reporting Person upon the vesting of 5,834 shares of common stock originally awarded to the Reporting Person on March 23, 2023.

This transaction represents the withholding by the Issuer of 4,880 shares of common stock to satisfy tax withholding obligations incurred by the Reporting Person upon the vesting of 10,250 shares of common stock originally awarded to the Reporting Person on August 15, 2025.

This transaction represents the withholding by the Issuer of 12,234 shares of common stock to satisfy tax withholding obligations incurred by the Reporting Person upon the vesting of 25,000 shares of common stock originally awarded to the Reporting Person on June 1, 2024.

This transaction represents the withholding by the Issuer of 17,977 shares of common stock to satisfy tax withholding obligations incurred by the Reporting Person upon the vesting of 36,736 shares of common stock originally awarded to the Reporting Person on June 1, 2025.

This transaction reflects shares of common stock issued in connection with the vesting of financial performance-based restricted stock units granted on June 1, 2024.

Represents restricted stock units ("RSUs") granted to the reporting person in connection with his appointment as Interim Chief Executive Officer. The RSUs vest in full on the earliest of: (i) August 11, 2026 or (ii) a Change of Control (as defined in the Issuer's 2020 Equity and Incentive Compensation Plan).

The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.865 to $2.870 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Each Performance-Based Restricted Stock Units ("PRSUs") represents a contingent right to receive one share of Issuer's common stock.

Reflects a number of shares of Issuer common stock that the Reporting Person would receive upon vesting and settlement of the PRSUs at the target level of performance, provided that the actual number of PRSUs that would become eligible to vest range from 0% to 100% of the target number of PRSUs based on actual achievement. The PRSUs vest upon Issuer's common stock achieving a specified price per share.

The subject transaction represents the forfeiture and cash settlement of 15,814 shares of common stock underlying an RSU award, originally awarded to the Reporting Person on June 15, 2024 and reported at that time as common stock in Table I, to satisfy the foreign tax obligation that accrued upon the vesting of 35,141 shares of common stock underlying such RSU award. The 15,814 shares of common stock underlying such award were cash settled at a price of $3.84 per share for an aggregate cash settlement of $60,725.76, which amount is approximately equal to (based on applicable foreign exchange rates), but does not exceed, the foreign tax obligation of the Reporting Person.

Since the date of the reporting person's last ownership report, he transferred 193,056 shares of the Issuer's common stock to his former spouse pursuant to a domestic relations order. The reporting person no longer reports as beneficially owned any securities owned by his former spouse.

Each Performance-Based Restricted Stock Unit ("PRSU") represents a contingent right to receive one share of Issuer's common stock.

Reflects a number of shares of Issuer common stock that the Reporting Person would receive upon vesting and settlement of the PRSUs at the target level of performance. The PRSUs vest upon Issuer's common stock achieving a specified price per share.

Each Performance-Based Restricted Stock Unit ("PRSU") represents a contingent right to receive one share of Issuer's common stock.

Reflects a number of shares of Issuer common stock that the Reporting Person would receive upon vesting and settlement of the PRSUs at the target level of performance. The PRSUs vest upon Issuer's common stock achieving a specified price per share.

20,000 shares held indirectly by Trust were previously reported as held directly by the Reporting Person.

The shares are held indirectly through the Camillo & Maria Martino Living Trust of which the Reporting Person is a trustee and beneficiary with his spouse.

This transaction represents shares of common stock issued in connection with the vesting of financial performance-based restricted stock units granted on June 1, 2024.

This transaction represents the withholding by the Issuer of 3,176 shares of common stock to satisfy tax withholding obligations incurred by the Reporting Person upon the vesting of 7,000 shares of common stock originally awarded to the Reporting Person on June 1, 2024.

This transaction represents the withholding by the Issuer of 3,167 shares of common stock to satisfy tax withholding obligations incurred by the Reporting Person upon the vesting of 7,000 shares of common stock originally awarded to the Reporting Person on June 1, 2024.

This transaction reflects shares of common stock issued in connection with the vesting of financial performance-based restricted stock units granted on June 1, 2024.

This transaction represents the withholding by the Issuer of 9,249 shares of common stock to satisfy tax withholding obligations incurred by the Reporting Person upon the vesting of 26,423 shares of common stock originally awarded to the Reporting Person on February 16, 2023.

This transaction represents the withholding by the Issuer of 17,632 shares of common stock to satisfy tax withholding obligations incurred by the Reporting Person upon the vesting of 50,375 shares of common stock originally awarded to the Reporting Person on February 16, 2023.

This transaction represents the withholding by the Issuer of 8,750 shares of common stock to satisfy tax withholding obligations incurred by the Reporting Person upon the vesting of 25,000 shares of common stock originally awarded to the Reporting Person on June 1, 2024.

This transaction represents the withholding by the Issuer of 2,877 shares of common stock to satisfy tax withholding obligations incurred by the Reporting Person upon the vesting of 5,833 shares of common stock originally awarded to the Reporting Person on March 23, 2023.