A U.S. district court has summoned former TRON CEO Justin Sun over charges previously filed by the U.S. SEC, according to a court document filed April 12.

That document, directed to two Singapore addresses, informs Sun that the U.S. Securities and Exchange Commission has filed a lawsuit against him.

It says that within 21 days of receiving the summons, Sun must respond to SEC member Adam Gottlieb. Sun must file his answer or motion with the court as well.

If Sun does not respond, he will face default judgment.

Justin Sun has not explicitly commented on the summons. However, on Twitter, he posted the number “4” around the time of the message — alluding to Binance’s shorthand for its rule of “ignor[ing] FUD, fake news, attacks, etc.”

When the SEC announced its charges weeks ago, Sun responded by asserting that the complaint “lacks merit” and by asserting the legitimacy of his cryptocurrency projects.(by Mike Dalton)