How to Purchase United States Dollar (USD) Using Polkadot (DOT) in China

To buy United States Dollar using Polkadot, first, find a cryptocurrency exchange that supports the USD/DOT trading pair, such as Nexo, EarnPark, YouHodler or BTSE. Create an account, complete the KYC process to verify your identity, and deposit your DOT into your exchange wallet. Locate the USD/DOT pair on the trading platform and place an order to exchange your Polkadot for United States Dollar. If the USD/DOT pair is unavailable, you can first exchange Polkadot for a stablecoin like Tether (USDT) or a fiat currency such as CNY, then trade that for United States Dollar. Be mindful of potential exchange fees, which vary by platform and can impact the overall cost of your transaction.