1. Some cryptocurrencies are not available on OKX, so they need to be purchased on MEXC. Therefore, I needed to transfer USDT from OKX to MEXC via the Arbitrum network.
2. Open MEXC. The total account assets are currently equivalent to 0. Click Deposit, as shown in Figure 1.

3. Deposit USDT and select a network. Make sure you select the same network on the withdrawal platform; otherwise, your assets may be lost. See Figure 2.

4. Select the network: Arbitrum One, because the transaction fee is relatively low. Click Generate Address, as shown in Figure 3.

5. The USDT deposit address has been generated: 0xeaa345d75fffa9adbf6e985b9b5a09ef9869ae80. See Figure 4.

6. Open OKX and click Withdraw, as shown in Figure 5.

7. Go to the withdrawal page and select USDT as the cryptocurrency, as shown in Figure 6.

8. Select the withdrawal network: USDT-Arbitrum One. A warning appears: Make sure you select the same network for both withdrawal and deposit, and confirm that the deposit platform supports the selected network; otherwise, your assets may be lost. See Figure 7.

9. Choose an on-chain withdrawal and paste the withdrawal address generated by MEXC. Select USDT-Arbitrum One as the withdrawal network. See Figure 8.

10. A potential risk warning appears: Make sure the withdrawal address or account you selected is correct. Once the transaction is recorded on-chain, it cannot be canceled. Confirm that you trust the address and agree to continue with the withdrawal. See Figure 9.

11. Verify the withdrawal and make sure all the information is correct. Check that the withdrawal network matches the network supported by the deposit platform. See Figure 10.

12. Verify the withdrawal by entering the email verification code and mobile phone verification code, as shown in Figure 11.

13. The request has been submitted. To check the withdrawal status, click the withdrawal details below. If you want to cancel the withdrawal, you can cancel it free of charge within one minute. See Figure 12.

14. Check the withdrawal details. The withdrawal is being processed, and it can be canceled within one minute. See Figure 13.

15. In the funding bill, the USDT withdrawal is shown as -1.1. See Figure 14.

16. Open MEXC. The total account assets are now equivalent to 1, as shown in Figure 15.

17. Open OKX and check the withdrawal details. The -1 USDT transfer has been completed, as shown in Figure 16.

18. Make another on-chain withdrawal, this time for 500 USDT. The fee is still only 0.1 USDT, which shows that the transaction cost is relatively low. See Figure 17.

19. Open MEXC. The total account assets are now equivalent to 501, as shown in Figure 18.

