$BNB share Initially built on Ethereum as an ERC-20 token, BNB later migrated to Binance’s own blockchain, Binance Chain. It was first used to pay trading fees on the Binance platform with discounts. Today, BNB has expanded uses, including transaction fees, travel bookings, online payments, and participation in token sales on Binance Launchpad. One key feature of BNB is the quarterly "burn," where Binance buys back and destroys coins, reducing supply to help maintain value. BNB plays a vital role in the Binance ecosystem, supporting various applications and blockchain-based services across its platforms.