Bitfinex announced that its IEO platform Tokinex would use 27% of past and future revenue for LEO utility token burns
Source: https://cointelegraph.com/news/bitfinex-to-use-27-of-tokinex-revenue-to-burn-leo-tokens
Bitfinex to Use 27% of Tokinex Revenue to Burn LEO Tokens
July 8, 2019
CoinTelegraph