$MTX === Who: CUTLER ERIN (No data) === Transaction Date: 2022-01-26 Transaction Code: M (Exercise or conversion of derivative security received from the company (such as an option)) Amount: 778.00 Price: 0.00 Amount of Securities: 93000 === Explanation of Responses: These shares were withheld by Minerals Technologies Inc. to satisfy tax withholding obligations. The information contained in this report is based on a Plan Statement dated as of January 26, 2022. Each DRSU is the economic equivalent of one share of Mineral Technologies Inc. Common Stock. The DRSUs were granted on January 26, 2021 and vest in three equal annual installments beginning on January 26, 2022. === Souse: sec.gov