- Log on to Gate.io.
- Click Wallet > Funds Overview.
- Click Withdraw in the spot account row.
- Make sure To Address is selected, select the coin code ETH and the chain Optimism. Then, scroll down.
- Type your address (and an optional name for future use), the amount, the funding password, and your Google Authenticator one time password. Then click Submit Request.
- Confirm the withdrawal.
- Congratulations, in a few minutes you'll be able to use OP Mainnet.