Refer to the input text as context and select the correct relationship between 'Fonterra' and 'milk' from the available options.
Options: stock exchange, currency, business division, product/material produced

Last week, Fonterra Co-operative Group of New Zealand, which accounts for about one-third of the international trade in dairy products, said it will pay farmers NZ$3.85 (€2.32) per kilogram of milk solids in the season ending May 31st, 2016, which is the lowest since at least 2006 and 27% less than Fonterra’s May 28th prediction of NZ$5.25 a kilogram.
product/material produced