Units of the fund, which give investors access to the dividends from Fonterra’s shares, fell 8.6% to $6.51, erasing more than $60 million from their market value. The units were sold in an initial public offering in November at $5.50 apiece.
Shares of A2 Corp, which markets milk with a protein variant said to have health benefits, fell 4.5% to 64 cents and Synlait Milk, the Rakaia-based dairy company, declined 4.1% to $2.60.
The kiwi dollar fell as low as 76.99 US cents from 78.31 cents at the New York close last week and had recently traded at 77.68 cents.
Fonterra, the world’s biggest dairy exporter, said at the weekend that it had advised eight customers it had found a strain of chlostridium, linked to the deadly disease botulism, in three batches whey protein concentrate used in products including infant formula.
The concentrate was produced at a single New Zealand manufacturing site at Hautapu in Waikato in May 2012 and test results on July 31 this year prompted the notification to customers.
“You would expect this to increase this uncertainty in the near term,” Harbour Asset Management managing director Andrew Bascand said.
The contamination scare comes five years after the scandal in China over Sanlu Group, which was 43% owned by Fonterra and whose milk was found to be tainted with melamine.
Fonterra revealed in September last year that traces of a fertiliser additive known as DCD were found in some milk samples.
Media coverage has included conflicting reports of the response of importing countries.
Fonterra said today it had received no official notification from China that its products had been banned after a report in China’s official publication, the People’s Daily, said some importers had recalled product.
Russia suspended imports of Fonterra products, its ITAR-TASS news agency has reported.
Units in the Fonterra fund extended their decline from last week when the dairy exporter raised its forecast payout to farmers on dwindling global milk supply while saying higher margins could put its dividend at risk.