Aegion Corporation announced that Stephen P. Callahan resigned his position as Senior Vice President – Global Human Resources and HS&E, with effect from February 24, 2020. The Company has entered into a separation agreement with Mr. Callahan that provides for, among other things, the continuation of Mr. Callahan’s current base salary for the 18-month period beginning February 25, 2020, and the vesting of certain time-based restricted stock units awarded to Mr. Callahan in 2018, consistent with the terms of the award agreement.