The United Kingdom announced a package of sanctions Tuesday against entities accused of aiding Russia—including HTX, the massive crypto exchange founded by Justin Sun.

The U.K. government sanctioned HTX for “making available funds, economic resources, goods or technology to individuals and entities in the Russian financial sector.” HTX is one of the largest crypto exchanges in the world, which last year reported over $3 trillion in trading volume.

The British government specifically accused HTX of providing financial services to A7, a Russian crypto exchange with its own ruble-pegged stablecoin, A7A5, that experts say is used by the Russian state to avoid international sanctions.

“If the Kremlin thinks it can…