Legal action could follow the Fonterra botulism scare, with one of the hardest-hit companies saying it was considering whether to pursue compensation.
Nutricia, which recalled some of its Karicare baby formula products this month, said it was considering its legal position after the Ministry for Primary Industries said Fonterra's whey protein concentrate had been cleared of a botulism-causing bacterium.
A spokesman for AgResearch, which is standing by the testing that sparked the scare, would not say whether it was facing any legal action over its tests.
Infant Formula Exporters Association chairman Michael Barnett said legal action was the last thing on smaller formula exporters' minds.
"The big issue for these guys is trying to placate their markets, trying to get back into the China market in particular, and restoring confidence with their retailers, with their distributors."