You can buy VAULT coin via:
VAULT Platform Coin Packs (CRYO VAULT coins)
https://my.vault.investments/coins/vault/coin-packs/
VAULT Platform Instant Swap
https://my.vault.investments/dashboard/ (Right-hand column)
Crex24
https://crex24.com/exchange/VAULT-BTC
SouthXchange
https://main.southxchange.com/Market/Book/VAULT/BTC
Please note
VAULT has a low supply on the open market and you might not find a large number of coins available on exchanges due to the very well-managed, low supply and a high number of CRYO VAULT coins and the fact that the VAULT Investments team has been very disciplined and never sold VAULT coins on exchanges. We have also given away most of our premine as bonuses to our loyal investors and let investors take their return and market liquidity. And now that we have reached the last block rewards change, we have reached our goal to create the perfect environment through low emissions and scarcity.