Han had a connection to Project Aries, as discovered by Letty and Mia in Fast 9, when his name turned out to be connected to the activation key for this tech.

After reuniting in Tokyo, Han shares with the family that Mr Nobody had hired him to steal a certain technology.

Mr Nobody knew he could trust Han since the street racer’s late girlfriend Gisele had worked for Kurt’s character in running drugs in Central America.

Of course, this tech turned out to be Project Aries and Anna Sawai’s Elle was the activation key since her parents created it.