How to Buy K21 (K21) with Sponge (OLD) ($SPONGE)

To buy K21 using Sponge (OLD), first, find a cryptocurrency exchange that supports the K21/$SPONGE trading pair. Create an account, verify your identity, and deposit your $SPONGE into your exchange wallet. Locate the K21/$SPONGE pair on the trading platform and place an order to exchange your Sponge (OLD) for K21. If the K21/$SPONGE pair is unavailable, you can first exchange Sponge (OLD) for a stablecoin like Tether (USDT) or a fiat currency, then trade that for K21. Be mindful of potential exchange fees, which vary by platform and can affect the total cost of your transaction.