South Korea’s largest crypto exchange Upbit will list four altcoins—Biconomy (BICO), Bubblemaps (BMT), Nillion (NIL) and ETHGas (GWEI)—against Bitcoin (BTC) and Tether (USDT). The original 1 p.m. KST launch on August 21 was postponed by three hours to 4 p.m. KST after the exchange issued an updated notice. Deposits and withdrawals opened within two hours of the announcement on specified networks: Ethereum for BICO, NIL and GWEI; Solana for BMT. Standard launch controls will restrict buy orders for five minutes, block sell orders more than 10 percent below the prior close, and allow only limit orders for roughly two hours. Upbit warned of another possible delay if deposits fail to provide sufficient liquidity. No Korean won pairs were announced. All four tokens rose after the original notice, with GWEI leading gains on other exchanges. Deposits must use the listed networks exactly; transfers on unsupported chains risk non-recovery. Upbit projects include Biconomy for transaction abstraction and governance, Bubblemaps for token distribution visualization, Nillion for privacy-focused data and AI computation, and ETHGas for Ethereum blockspace trading and preconfirmations. Earlier Upbit listings this month lifted other tokens, though debut performance often fades.