$BNB BNB is a cryptocurrency coin created and issued by the cryptocurrency exchange Binance. It was initially created on the Ethereum blockchain as an ERC-20 token in July 2017. In February 2019, BNB migrated over to BNB Smart Chain and became the native coin of the Binance Chain. BNB can be used to pay for fees when trading on Binance, and usually at a discounted rate.