Dear Cobo Customer,

Cobo will be supporting the Optimism（OPT_ETH） network upgrade and hard fork as follow：

• The Optimism（OPT_ETH） network upgrade and hard fork will take place at at 2024-02-22 08:00 (UTC+8)
• In order to support the Optimism（OPT_ETH） network upgrade and hard fork, Cobo will suspend the deposit and withdrawal services of the Optimism（OPT_ETH） network at 2024-02-22 7:00 (UTC+8)

Services will be resumed as soon as the upgrade is completed. Please feel free to contact us if you have any other questions.

Cobo Support
February 20, 2024