Australia, Canada, New Zealand and Uruguay have participated in formals talks with Chile requested at the World Trade Organisation by Argentina, which has complained about provisional safeguard duties of 16% that it has imposed on imports of powdered milk and liquid UHT milk. Initial consultations - which are the first stage of a WTO disputes procedure - were held yesterday (21 November). Argentina claims that Chile has broken the Agreement on Safeguards, a statement contested by Santiago.