Klaytn Growth Fund. See [Token Economy - Klaytn Growth Fund].
Klaytn Improvement Reserve. See [Token Economy - Klaytn Improvement Reserve].
KLAY is the main internal transferable cryptocurrency of Klaytn and is used to pay transaction fees when creating or executing smart contracts or when transferring KLAY. Also currency unit of KLAY and 1 KLAY is 10^18 peb.