Sending and Receiving OKXChain Assets

Add OKXChain Wallet in ONT ID Wallet
Download ONTO App and Create ONT ID Wallet
Add Chain Wallet in ONT ID Wallet
Import and Export OKXChain wallet
The OKXChain wallet can be imported and exported by mnemonic phrases or private key. 
If you choose to import the OKXChain wallet, there are two import paths to choose when importing mnemonics, and the addresses generated by different paths are different. 
If you want to import the new address of the OKXChain MainNet after the upgrade, choose M/44H/60H/0H/0/0 for the path. 
If you want to import the old address/TestNet address before the upgrade, then choose M/44H/996H/0H/0/0 for the path.
Reference tutorial link:
Import, Export, Switch or Delete Single Chain Wallet
Export OKXChain Wallet Private Key
When exporting the private key, the default export is the private key generated by the address after the upgrade of the OKXChain MainNet. To export the private key of the address before the MainNet upgrade, please see below.
After exporting the OKXChain wallet mnemonic from ONTO, open the webpage https://www.okex.com/en/dex-test/wallet/import to import the mnemonic and export the private key. The following are the specific steps.
Click "Mnemonic phrase", enter the mnemonic phrase, set a password, and then click "Next".
Choose the account type,then click"Submit"
Click"Wallet"—"Export secret key"
Enter the wallet password, click "OK", and then click the copy icon to copy the private key.
Add OKXChain assets 
Among OKXChain assets, only OKT is displayed on the Asset Page by default, and other assets need to be added manually. Click the "+" icon on the right of the asset page and enter the asset name to search and add.We illustrate the process by USDT asset.
Receive OKXChain assets (Take OKT as an example)
On "Assets" page, left swipe over the asset to open the asset receiving page. 
Or on "Assets" page, tap on the asset. Tap on the "Receive" button to open the asset receiving page. 
Select "Copy" to copy the address.
There are two address formats in OKXChain, one starts with ex and the other starts with 0x. The assets in the addresses in the two formats are the same. However, the ex address can only transfer money to the ex address, and the 0x address can only transfer money to the 0x address, and cannot be cross-transferred.
Click "Copy" to copy the address. The default address format starts with ex, you can click "Switch to 0x-address" to switch.
Click "Share" to share the address and corresponding QR code to social platforms such as Facebook, WeChat and Weibo in the form of pictures.
Click "Fixed-amount transfer" to set the number of received assets. After the setting is successful, when the sender uses the ONTO AssetPage scanning function to scan the QR code, the sent quantity will be automatically filled in as the set quantity.
Send OKXChain assets (Take OKT as an example)
On "Assets" page, right swipe over the asset to open the asset sending page.
Or on "Assets" page, tap on the name of the asset. Tap on the "Send" button to open the asset sending page. 
After entering the OKXChain receiving “Address”, the address in another format corresponding to the address in this format will be automatically displayed. Enter the “Transfer amount” and lick "Fee" to choose different speed fees or custom fees. tap on the "Next step" button to proceed. Input wallet password and then tap on the next button to complete the process.