Fonterra's share price was unaffected by the news from Shanghai that 19 people had been arrested for selling around 300 tonnes of the company's expired milk powder.
In the first hour of trading, units in the Fonterra Shareholders Fund were trading at $5.90, unchanged from Friday's close.
"The market seems pretty relaxed about it," Mark Lister, head of private wealth research at Craigs Investment Partners said. "There has been zero market reaction."
The Shanghai Daily earlier reported that the suspects were allegedly managing a company, which was packaging expired products of Fonterra - one of the most popular brands in China - into smaller packages for resale below market prices.
Fonterra spokeswoman Maree Wilson said none of the people arrested were Fonterra employees, contractors or were associated with the company.