| Id | Content |
|---|---|
| F1 | Represents the settlement of performance share units (PSUs) that were previously granted under Huntsman's stock incentive plans. The amount of shares to be received under the grant depended upon the achievement of performance goals during a three-year performance period from January 1, 2020 through December 31, 2022. |
| F2 | Shares automatically withheld upon payout of PSUs. |
| F3 | These shares of restricted stock granted under the Huntsman 2016 Stock Incentive Plan vest in three equal installments beginning February 16, 2024. |
| F4 | Share automatically withheld upon vesting of restricted stock to satisfy tax withholding obligations. |