Dear Phemex Users,
Phemex will support the USDT token contract swap on the Optimism network. The arrangements are as follows:
Deposit and Withdrawal Arrangements
At 02:00 UTC on September 17, 2026, Phemex will suspend deposits and withdrawals of USDT via the Optimism network.
Users are advised to complete their deposits in advance and allow sufficient time for the deposits to receive the required network confirmations before the suspension takes effect.
USDT deposits and withdrawals via other supported networks, as well as trading services on Phemex, will not be affected by the contract swap.
Phemex will issue a separate announcement once USDT deposits and withdrawals via the Optimism network have resumed.
Contract Swap Arrangements
The contract swap will be conducted at a ratio of 1:1.
Phemex will handle all technical requirements for affected users. No action is required from users.
Users’ USDT balances on Phemex will not be affected by the contract swap.
The new and old contract addresses are as follows:
New USDT contract on Optimism:
0x01bff41798a0bcf287b996046ca68b395dbc1071Old USDT contract on Optimism (OPUSDTE):
0x94b008aa00579c1307b0ef2c499ad98a8ce58e58
Following the completion of the contract swap, Phemex will only support USDT deposits and withdrawals via the new contract on the Optimism network. Deposits and withdrawals via the old contract (OPUSDTE) will no longer be supported.
Please verify the contract address carefully before making a deposit. Deposits made to Phemex via the old contract after the suspension takes effect will not be credited and may result in the permanent loss of funds.
Thank you for your support!
Phemex Team
