The MEXC (Matcha) exchange has been accused of money laundering by US agencies. Previously, the HTX (Huobi) exchange was accused of money laundering by UK agencies. You see, both the UK and the US are short of funds, and only these offshore Chinese exchanges can legally raise money. North Korea's scheme directly involved a massive $6.3 billion loss to Binance. Because these exchanges don't have a powerful country backing them, they all have to pay to get away with it.