Westland Milk Products' farmer shareholders are awaiting full disclosure from their board of directors on the proposed sale of their business to Chinese company Yili for half a billion dollars.
Shareholders are expected to vote in July on the conditional sale offer to Yili, which trades in New Zealand as Oceania.
It already operates a dairy plant at Glenavy, near Waimate.
The sale - which is already being referred to by many as a done deal - requires more than 50 per cent of the shareholder base to vote 75 per cent in favour of it, and is on the basis of Overseas Investment Office approval.
Shareholders have yet to see full details of the sale proposal.