In a Tweet, Binance CEO Changpeng “CZ” Zhao says Feb. 20th will be the testnet launch date for Binance Chain, the crypto exchange's new decentralized exchange (DEX) platform. The DEX will host the Binance Token ($BNB) and will allow for the issuance of new tokens built on Binance Chain plus investments for various crypto trading pairs. CZ plans on setting a high listing fee once the DEX is up, perhaps even a $100,000 or more, to decrease the number of scam projects.