How to Deposit ETH on OP Mainnet? 2215 November 29, 2023 ETH is now being treated as the native token of both the Ethereum and Optimism networks, rather than as an ERC-20 token and can be deposited on OP network. Deposit ETH on OP mainnet:To deposit funds to your LCX account, you are required to follow the belowmentioned steps: Login to your LCX account. 2. Visit LCX Dashboard > Deposit 3. Choose ETH token from the drop down. 4. Select network “OP” and then scan QR code or copy the address visible below to deposit ETH on OP network.