Binance counts China as its largest market, followed by South Korea, Turkey, Vietnam, and the British Virgin Islands, according to documents reviewed by the Wall Street Journal. The Journal reports that despite the ban on crypto within China, teams from Binance regularly collaborate with Chinese law enforcement to detect potential criminal activity. It also has 900,000 active users in-country, according to the report. A spokesperson for the exchange did not immediately respond to CoinDesk’s request for comment. Data from the Journal shows that China is a $80.6 billion futures market and a $9.4 billion spot market for Binance. Second place South Korea provides $56.9 billion in futures volume and $1.39 billion in spot volume, and fifth place British Virgin Islands is responsible for $12.82 billion in spot volume and $5 billion in futures volume.