Dear Poloniex Users,

Poloniex will support the Siacoin(SC) Network Upgrade with the following plan:

Poloniex will suspend the deposit and withdrawal services for SC at 16:00:00 (UTC) on June 4, 2025;

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

Please note:

● The Siacoin(SC) Network Upgrade will take place at block height of 526,000.

● The trading of SC will not be affected during the network upgrade.

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

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

For more information, please refer to:

https://docs.sia.tech/navigating-the-v2-hardfork/exchanges

Poloniex

May 29, 2025