A 12-year-old will stay in Child Youth and Family custody ahead of his trial for the manslaughter of a West Auckland dairy.

Arun Kumar, 57, was killed last month at his Henderson dairy in front of his wife.

The 12-year-old made his first appearance at the High Court in Auckland today, where the judge ruled that he would continue to get name suppression, Newstalk ZB reported.

Justice Graham Lang also decided the 12-year-old would face trial in November alongside his 13-year-old co-accused, who is charged with murder.