Detectives are asking for public assistance to track down Doncaster man Joon Seong Tan who may be able to assist with their investigation.
Ju was last found on Monday February 1st at around 5:30 p.m. seen her house on Winchester Avenue.
At the time, the 33-year-old mother was wearing a pink pajama top, shorts, and no shoes.
Ju had no personal effects other than her cell phone at the time.
Their disappearance is considered extremely untypical and the police have strong concerns about their welfare.
34-year-old Joon Tan may be driving his black 2008 Mazda CX9 station wagon with registration number WKE 850.
The police are calling on anyone who sees Ju or Tan to call Triple Zero (000) immediately.
Anyone with information about Ju or Tan’s whereabouts is asked to call Crime Stoppers on 1800 333 000 to turn.