Utilize the input text as a context reference, choose the right relationship between Fonterra and milk from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Although plunging global dairy prices has seen Fonterra slash the price its pays its New Zealand suppliers, Australian farm gate prices are expected to remain at about $6 a kilogram for milk solids in the year ahead.

Answer: product_or_material_produced