The Court of Aalborg in Denmark decided on Wednesday to extradite Chung Yoo-ra, the daughter of a longtime confidante of former South Korean President Park Geun-hye in spite of her appeal.
"The conditions for the extradition are fulfilled," judge Ole Hoeyer was quoted by Danish news agency Ritzau as saying.
The ruling was immediately appealed to the High Court of Denmark by Chung's defense lawyer Michael Juul Eriksen, according to Ritzau.
That means Chung, 20, who has been in police custody in Denmark since January, will remain in custody until the High Court of Denmark can hear the case.
Denmark's public prosecution office decided on March 17 to extradite Chung, but the ruling was appealed by her.
Chung was arrested by Denmark's North Jutland Police on Jan. 1 at the request of Interpol. Her mother Choi Soon-sil is charged with using her friendship with Park to extort funds from large businesses and meddling in state affairs.
Chung is alleged to have received illegal favors when entering a prestigious South Korean university. She is also accused of being behind economic crimes in collusion with her mother.