Dairy farmers in southern Chile say Fonterra’s continuing underpayment for their milk has left them little choice but to build their own processing cooperative. The South American country’s second-biggest dairying operator, the part Kiwi-owned Chilterra company, and about 200 farming families were in advanced stages of planning the new cooperative, said chairman Mike McBeath, a Waikato dairying consultant and businessman. The next step was to raise US$10-12 million to build a processing plant. Chilterra…