Don't suppose the decision to announce an unsolicited 'offer' could be linked to the decision to raise some capital in the new year? The 60c figure seems a bit odd to me as I would have thought the board would have just laughed it off and therefore not made a market announcement.
Either way the share price still seems cheap since the Rockwood news.
I wonder if they'll opt for an entitlement offer to shareholders or just go for a placement?