Operating schedule of test environment from May 11 to 13

We inform you of the operating schedule for the test environment from May 11 to 13, 2026.

On May 11, the test environment will operate in the Additional Weekend Trading Session mode:

• The Securities market test environment — Т0 (UAT_GATEWAY) and Т1 (INET_GATEWAY).
• The FX market test environment — Т0 (UATCUR_GATEWAY) and Т1 (INETCUR_GATEWAY).

From May 12 to 13, we will be updating the Securities (INET_GATEWAY) and the FX (INETCUR_GATEWAY) markets T1 dedicated test environment. Test trading system could be temporarily unavailable during that period. All trades concluded on that day in the test trading system will be reset. Please note that we do not guarantee the regular delivery of the end-of-day trading and clearing reports during the first days after the scheduled server maintenance.

Additionally, please be aware that due to the maintenance, the following services will be unavailable in the test environment:

• Creation of new IDs, opening of new accounts and client codes, depositing funds and taking positions;
• WebAPI services: Clearing Terminal, Unified Client Registration, Duplicate Check for Individual Investment Accounts, Publication of iNAV benchmarks and indexes.

As of May 14, the test environment will operate according to the standard schedule. The current schedule is available at the following link: https://www.moex.com/s437 (Russian only).