Poloniex to Support the POLPOLY and BASE Network Upgrades

Dear Poloniex Users,

Poloniex will support the POLPOLY and BASE Network Upgrades with the following plan:

Poloniex will suspend the deposits and withdrawals for POLPOLY Chain tokens at 12:00:00 (UTC) on May 21, 2026;
Poloniex will suspend the deposits and withdrawals for BASE Chain tokens at 16:00:00 (UTC) on May 21, 2026;

You may deposit POLPOLY and BASE Chain tokens in advance. We will handle all technical requirements involved for all users.

Please note:

● The POLPOLY Network Upgrade will take place at block height of 87218600 (at 14:00:00 (UTC 8) on May 21, 2026); The BASE Network Upgrade will take place at 18:00:00 (UTC 8) on May 22, 2026;

● Trading of POLPOLY and BASE chain tokens 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 POLPOLY and BASE Chain tokens once we deem the upgraded network to be stable, which will not be further announced.

For more information, please refer to:

https://github.com/0xPolygon/bor/releases/tag/v2.8.0

https://github.com/cosmos/gaia/releases/tag/v27.3.0

Poloniex

May 18, 2026

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