HashKey Exchange is committed to supporting the upcoming Optimism (OP) network upgrade, which is scheduled to take place at block height 1,710,374,401 on March 14, 2024 at 08:00 Hong Kong time. In preparation for this upgrade, the exchange will temporarily suspend token deposit and withdrawal services for the Optimism (OP) network starting at 21:25 on March 13, 2024 Hong Kong time. It's important to note that trading of Optimism (OP) tokens will continue uninterrupted during this period. Once the network upgrade is complete and the network is stable, HashKey Exchange will resume the token deposit and withdrawal services without the need for further notice.