Houston: A Texas man running a 3D printed guns company was booked into a Houston jail on a charge of sexual assault on Sunday after Taiwanese officials sent him back to the United States where he is accused of having sex with an underage girl.

CCTV shows suspect Cody Wilson walking at a hotel lobby in Taipei. Credit:AP

Cody Wilson, 30, flew to Taiwan after learning he was under investigation, police said, and was picked up by Taiwanese authorities on Friday after his US passport was annulled. He was deported to the United States on Saturday.

He was booked into Harris County jail in Houston on Sunday, according to the jail's website.

It was unclear whether Wilson had a criminal defence lawyer.