AUCKLAND, New Zealand, 2017-Dec-27 — /EPR Retail News/ — Synlait Milk (NZX: SML; ASX: SM1) is partnering with Foodstuffs South Island Limited to become the Cooperative's exclusive supplier of its private label fresh milk and cream from early 2019. Synlait intends to invest approximately $125 million in an advanced liquid dairy packaging facility to supply Foodstuffs South…