BNB (Build and Build), originally launched as Binance Coin in 2017, is the native cryptocurrency of the Binance ecosystem. Initially created as a utility token for discounted trading fees on the Binance exchange, BNB has expanded its role significantly. It now powers the BNB Chain (formerly Binance Smart Chain), supporting decentralized applications, DeFi projects, and NFT platforms. BNB is also used for token sales, transaction fees, and staking within the Binance ecosystem. Its capped supply and regular token burns help maintain scarcity. As one of the top cryptocurrencies by market cap, BNB remains central to Binance’s growing blockchain ecosystem and global reach.