Crypto exchange Binance generates 90% of its revenue from transaction fees, CEO Changpeng Zhao said in an interview with TechCrunch. Zhao added that Binance had removed all ads from data site CoinMarketCap, which it acquired in 2020, to make for a cleaner experience. “We can turn that back on, that’ll give us $40 million a year. But we don’t need to today,” Zhao said. It is estimated that Binance had about $20 billion in revenue in 2021, according to a Bloomberg analysis.