Police are appealing for public assistance to help locate missing man Hong.
The 72-year-old man was last seen at 6:40am on 15 August on Tudor Road in Sunshine North, walking in the direction of a bus stop.
He was last seen wearing black pants, a black shirt with white stripes, a jacket, and black slip-on shoes with white socks.
Police and his family are concerned for his welfare due to a medical condition.
It is believed Hong frequents public transport, particularly bus routes 408 and 903.
Hong speaks limited English but will recognise his own name.
Anyone who sights Hong or has any information on his whereabouts is urged to contact Sunshine Police Station on (03) 9313 3333.