EPS is owned by Sirius, a company co-owned by MineRP and Crest Consulting. Sirius does not ell EPS directly, but rather trades through MineRP and appointed Value Added Resellers. As such, EPS is a MineRP product and will be licensed primarily via the MineRP License Manager.
CAE Mining, as one of the EPS resellers, may also sell EPS licenses, and are allowed to administrate those licenses through their Kiosk.