Composable Token

A composable token is referred to as the ERC-998 token, which is the standard extension to any non-fungible token, adding the capability of the non-fungible tokens to own the other non-fungible (ERC-721) as well as the fungible (ERC-20) tokens. The ERC-998 tokens are composable meaning that they permit the users to “compose” or organize the assets into complex hierarchies and trade them with the single ownership.