Chan Win Hing, 55, was last seen in Titirangi, West Auckland on 11 May.
Police are asking anyone who knows the whereabouts of Chan Win Hing who was last seen on 11 May ago to come forward.
The 55-year-old man was last seen at a Titirangi address in West Auckland on 11 May.
Police said he was officially reported missing on 26 May.
In a statement, a police spokesperson said they were concerned for his welfare and wanted to ensure he was safe.
"We'd like to hear from anyone who has seen Mr Win Hing since the 11th of May, or anyone who has information on his possible whereabouts," the spokesperson said.
Anyone with information can get in touch with the police via 105 and quote file number 230526/5727.