A cellphone belonging to Aaron Roigard could be crucial in tracing the missing man's whereabouts.
Roigard, of Opunake, went missing on June 2 and it was believed his cellphone was on him when he was last seen.
The phone is described as a Samsung flip-top cellphone encased in a black leather pouch.
Detective Senior Sergeant Blair Burnett said the phone would provide police with "avenues of inquiry" that could lead them to Roigard.
"We remain focused and determined in locating Aaron and returning him to his family," Burnett said.
The investigation team is continuing with its inquiries, completing area canvasses and is building a picture of the circumstances leading to Roigard's disappearance.
The 27-year-old was last seen near Waiteika Rd about 1pm after he left a property on foot following a family disagreement.
Roigard, who is 1.76 metres (5ft 9in) tall, of medium build with brown hair, was last seen wearing black clothing, including a beanie, a hoodie jacket, trousers and work boots.
Burnett also said police are seeking any information or sightings of a green/blue Holden Commodore motor vehicle.
Anyone with information is asked to contact Detective Sergeant Chris Allemann on 06 213 9536 or contact 0800 555 111.
- Taranaki Daily News