Poloniex to Support the COSMOS(ATOM) Network Upgrades

Dear Poloniex Users,

Poloniex will support the COSMOS(ATOM) Network Upgrades with the following plan:

Poloniex will suspend the deposit and withdrawal services for ATOM at 12:30:00 (UTC) on January 12, 2026;

You may deposit ATOM in advance. We will handle all technical requirements involved for all users.

Please note:

● The COSMOS(ATOM) Network Upgrade will take place at block height of 29288700 (approximately at 14:39:59 (UTC) on January 12, 2026;

● The trading of ATOM will not be affected during the network upgrades.

● The network upgrades will not result in creation of new tokens.

● Poloniex will resume deposits and withdrawals for ATOM once we deem the upgraded network to be stable, which will not be further announced.

For more information, please refer to:

https://github.com/cosmos/gaia/releases/tag/v25.2.0

Poloniex

January 12, 2026