As speculation over Cadbury's future mounted this week, UK union officials held what they described as "constructive" talks with Kraft Foods this week, despite leaving without concrete assurances on UK production. Meanwhile, shares in the Dairy Milk maker jumped on reports that Nestle might be considering a bid and, while rumours mounted of a potential move from Hershey, the UK confectionery giant insisted that the value of any bid - rather than the identity of the bidder - would be its prime consideration.