Yi Sun was last seen in the Perth CBD last October.
Missing Person Unit detectives are seeking information regarding the whereabouts of 35-year-old Yi Sun.
Mr Sun from Canning Vale was last seen around 12:30pm on Wednesday 15 October 2017 in Barack Street, Perth.
He is described as brown skinned, approximately 174cm tall, with a slim build, black hair and brown eyes.
Serious concerns are held for Mr Sun’s welfare.
He did not have his wallet with him at the time and has not been in contact with any of his family.
Anyone with any information regarding his whereabouts is asked to call Crime Stoppers on 1800 333 000, or make a report online at www.crimestopperswa.com.au.