As per this announcement, WTC is delisted from Bitfinex, ceasing trading on 26/03/21 at 9:00 AM UTC.
Waltonchain (WTC) is a decentralized platform combining blockchain with the Internet of Things (IoT) via RFID technology. Their blockchain is implemented in the foundation layer, through their patented RFID chips, which are able to read and write directly to the blockchain, creating a genuine, trustworthy, and traceable business ecosystem.
Please note that Bitfinex supports ERC20 version of WTC only. Do not deposit the new mainnet Waltonchain tokens.