Dear users,

Please be informed that a planned outage of OTE systems will take place on Tuesday, 26 May 2025. During this period, all affected environments will be completely unavailable, including all automated communication.

The unavailability will occur within the following time windows:

• Sandbox, Sandbox2: from 13:00 to 02:00
• Production environment of the OTE trading system: from 16:00 to 23:30

Thank you for your understanding, and we apologise for any inconvenience caused.