Binance will open trading for the AST/USDT and SNT/USDT trading pairs at 2023-05-19 08:00 (UTC). Binance Spot Grid will be enabled for the AST/USDT and SNT/USDT trading pairs within 48 hours of the trading start time.

Source: https://www.binance.com/en/support/announcement/75627aa89f604ea5892568fac4db5ff8