A MAN arrested over the kidnapping for ransom of a Gold Coast schoolboy has told a NSW court: "I had no intention of doing what I did".

Zhen Jie Zhang, 53, appeared in Grafton Local Court this morning.

He is being extradited to Southport in custody of two Queensland detectives.

During the 10-minute hearing, Zhang tried to explain himself to the magistrate via a Cantonese translator.

"May I explain my case to you right now?" he asked.

"No," the magistrate promptly responded.

"I had no intention of doing what I did," Zhang said.

He is expected to be charged with a Queensland kidnapping offence later today.

Zhen Jie Zhang is taken away by Queensland police after he was extradited to Queensland in connection an alleged kidnapped of 12 year old boy on the Gold Coast on Friday.
Zhen Jie Zhang is taken away by Queensland police after he was extradited to Queensland in connection an alleged kidnapped of 12 year old boy on the Gold Coast on Friday.

Another key suspect in the kidnapping remains on the run, as detectives probe possible links to a global extortion racket.

Cops are desperately tracking the mystery man amid fears the racket runs much deeper than initially thought.

The boy's father - who reportedly owes $4 million in gambling debts - is believed to be in China, leaving his estranged family on the Gold Coast to pick up the pieces.

He has denied he owes money.