If you going to buy ES directly from Explorer Scientific page you can get 10% for the first order however I am not sure if you can combine it with current sale. Maybe someone can shed light on the issue.
EDIT: Use code "FIRST10" to combine both current sale and 10% off. For example (look pic below)
Edited by grzesznypl, 01 April 2020 - 03:22 PM.