Consumer New Zealand hopes supermarkets will face further scrutiny over the retail price of milk, after the Commerce Commission found Fonterra was paying a fair price.
An investigation into the way the company sets the price of milk on the farm was ordered in February by the Minister for Primary Industries.
Consumer said the findings issued on Monday show Fonterra is not abusing its dominance of the sector.
It hoped attention will now turn to the supermarkets.
Foodstuffs New Zealand and Progressive Enterprises declined to comment.
The commission says it will repeat the investigation every year.