Yes, you can trade without KYC on Gateio. However, in order to withdraw funds, you will need to complete KYC Level 1. This means that you will need to provide some personal information, such as your name, address, and date of birth. You may also need to provide proof of identity, such as a copy of your passport or driver's license. Once you have completed KYC Level 1, you will be able to withdraw funds from Gateio.