OKX to support Ethereum (ETH) network upgrade and hard fork

We will support the Ethereum (ETH) network upgrade and hard fork:

• Deposits and withdrawals for Ethereum (ETH), Xlayer (OKB), Arbitrum (ARB), Optimism (OP), Base (BASE), Starknet (STRK), zkSync Era, Linea, Unichain and related tokens will be suspended at 09:30 pm UTC on December 3, 2025.

• Services will resume once the upgraded network is stable, without further announcement.

• No action is required if you hold these tokens in your OKX account.

Please note:

• Trading of these tokens will remain available during the upgrade. Monitor risks associated with spot, margin, and derivatives trading, and consider increasing margin to mitigate risks.

• For fund safety, avoid depositing or withdrawing these tokens during the upgrade period.

For more details on the network upgrade:

• Ethereum’s Fusaka Upgrade

OKX Team

November 19, 2025